ES2956834A2 - VARIABLE PITCH INSTALLATION AND DEBUGING SYSTEM AND METHOD OF OPERATION THEREOF - Google Patents

Abstract

A variable-pitch installation and debugging system, comprising: a plurality of position sensors (301-306), wherein each of the position sensors (301-306) is configured to be installed at a junction between a variable-pitch system and a blade, so as to detect the position of the blade, and send a position detection result of the blade to a sub-controller (201-203) corresponding to the blade; a plurality of sub-controllers (201-203), wherein each sub-controller (201-203) is configured to determine, according to the position detection result of the blade corresponding to the sub-controller (201-203), whether the blade is at an operation enabling position, and send an enable signal to a master controller (100) if the blade is at the operation enabling position; and the master controller (100) which is configured to operate the blade according to the enable signal. By means of the structure, the problem in the prior art of the installation and debugging of a variable-pitch system being greatly affected by human factors is solved. In addition, the present application further relates to an operation method of the variable-pitch installation and debugging system.

Description

DESCRIPTION

VARIABLE PITCH INSTALLATION AND DEBUGGING SYSTEM AND METHOD OF OPERATION THEREOF

FIELD OF TECHNOLOGY

The present disclosure refers to the technical field of wind turbines, in particular to a pitch change installation and debugging system and an operation method thereof.

BACKGROUND

Wind energy is a clean and safe energy source, which can be constantly generated and regularly replenished in nature, so wind energy resources have obvious characteristics and characteristics, and have great potential for development and utilization. Variable speed and constant frequency technology began to emerge in the 1990s. The speed of the wind wheel of the constant frequency and variable speed wind turbine changes with the change of wind speed, which can make more effective use of wind energy; and constant frequency electric power can be obtained through constant frequency and variable speed technology. However, it is difficult for the variable speed and constant frequency wind turbine to reduce the impact of wind speed fluctuation only by adjusting the motor itself, the reason is that the wind speed changes rapidly in nature, especially in the conditions Working above the rated wind speed, the wind turbine may be subject to large static or dynamic impact. However, the variable pitch turbine is free from these situations. Variable pitch means that the pitch angle of the blade installed on the hub of a large-scale wind turbine is modified by the control technology and the power system, thus changing the aerodynamic characteristics of the blade, which greatly improves the stress conditions of the shovel and the entire machine. In recent years, the variable pitch electrical system has been increasingly applied to wind turbines. A direct drive wind turbine is a variable pitch wind turbine, and the blade rotates around its radial axis when the wind speed changes during operation. Therefore, it is possible to have a near optimal pitch angle and a lower wind shear speed over the entire range of wind speeds. At high wind speed, the pitch angle is modified to reduce the power angle, thus reducing the aerodynamic force on the blade. Therefore, it is guaranteed that The output power of the impeller does not exceed the rated power of the generator.

The variable pitch mechanism is used to adjust the pitch angle at any time according to the change of wind speed when the wind speed is higher than the rated wind speed, so as to control the mechanical energy absorbed. On the one hand, obtaining the maximum energy (corresponding to the nominal power) is guaranteed and, on the other, the impact of wind energy on the wind turbine is reduced. In the process of grid connection, variable pitch control can also realize fast and impact-free grid connection. The variable pitch control system is combined with variable speed constant frequency technology to improve the power generation efficiency and electric power quality of the entire wind power generation system.

The variable pitch electric system is a three-blade system equipped with an independent variable pitch electric system, which mainly includes a slewing bearing, a reducing device and a servo motor and its controller, etc. The variable pitch electrical system provides the wind turbine with sufficient power output and braking capacity to prevent damage due to overloading of the wind turbine.

The task of wind turbine installation and debugging is to organically combine all the systems of the wind turbine and allow the systems to coordinate with each other to ensure the safe, durable, stable and efficient operation of the wind turbine. The installation and debugging of the wind turbine variable pitch system includes the hoisting of the blades on site, and the process of adjustment, configuration and a series of tests for the equipment by using a temporary power supply or a power source. standby power in accordance with the design and technical documents of the equipment when the transmission line and power grid of the power generation equipment are disconnected. The installation and debugging of wind farms must adhere to the principle of safety first and precaution first. Wind farm construction units must strictly review the debugging scheme, safety measures and organizational measures of the debugging unit, and appoint the debugging security person in charge of coordinating, managing and supervising the work. debugging. The installation and debugging of the variable pitch system must meet the safety requirements of each system, especially the safety requirements of the whole machine, otherwise there will be personal safety risks and wind turbine safety risks. Installation and debugging personnel must be well versed in the functions of different systems of the wind turbine, and must be qualified personnel, especially for on-site installation and debugging. Therefore, the installation and debugging of the variable pitch system depends on the training and competence of personnel, and the risk of safety accidents due to large human factors cannot be ruled out. If installation and debugging personnel are not technically qualified, lack emergency response ability, or make mistakes due to interference from external factors, large human and material losses will occur.

SUMMARY

An objective of the present disclosure is to provide a system for installing and debugging a variable pitch system and a method of operation thereof, to solve the problem in the prior art of installing and debugging a variable pitch system seen greatly affected by human factors.

To solve the above technical problems, a variable step installation and debugging system includes:

multiple position sensors, where each of the position sensors is configured to be installed at a junction of a variable pitch system and a blade, in order to detect the position of the blade;

multiple subcontrollers, where each subcontroller is configured to perform the following actions:

determine, according to the position of the blade corresponding to the subcontroller, whether the blade is in a position that allows operation, and

sending an enable signal to a master controller if the blade is in the operating enable position; and

a master controller, configured to operate the blade according to the enable signal.

Alternatively, in variable pitch installation and debugging system, position sensors include:

a first position sensor, configured to be installed at a joint of the variable pitch system and a first blade, where the first position sensor is configured to detect whether a pitch angle of the first blade is in a safe position, and send a safe position signal to a first subcontroller if the pitch angle of the first blade is in the safe position;

a second position sensor, configured to be installed at a joint of the variable pitch system and a second blade, where the second position sensor is configured to detect whether a pitch angle of the second blade is in a safe position, and send a safe position signal to a second subcontroller if the pitch angle of the second blade is in the safe position; and

a third position sensor, configured to be installed at a joint of the variable pitch system and a third blade, where the second position sensor is configured to detect whether a pitch angle of the third blade is in a safe position, and send a safe position signal to a third subcontroller if the pitch angle of the third blade is in the safe position.

Alternatively, in variable step installation and debugging system,

the first subcontroller sends a first safe signal to the master controller after receiving the safe position signal from the first position sensor;

the second subcontroller sends a second safe signal to the master controller after receiving the safe position signal from the second position sensor;

The third subcontroller sends a third safe signal to the master controller after receiving the safe position signal from the third position sensor.

Alternatively, in the variable step installation and debugging system, the master controller includes a first processor, a second processor, and a third processor.

The first processor, if it receives the first secure signal, generates a first enable signal, and sends the first enable signal to the second processor and the third processor, respectively.

The second processor, if it receives the second secure signal, generates a second enable signal, and sends the second enable signal to the first processor and the third processor, respectively.

The third processor, if it receives the third secure signal, generates a third enable signal and sends the third enable signal to the first processor and the second processor, respectively.

Alternatively, in the variable step installation and debugging system, the master controller includes a first controller, a second controller, and a third controller.

If the first processor can simultaneously receive the second enable signal and the third enable signal, the first controller can raise and turn on the first blade, otherwise the first controller is prohibited from raising and turning on the first blade.

If the second processor can simultaneously receive the first enable signal and the third enable signal, the second controller can raise and turn on the second blade, otherwise the second controller is prohibited from raising and turn on the second blade.

If the third processor can simultaneously receive the first enable signal and the second enable signal, the third controller can raise and turn on the second blade, otherwise the third controller is prohibited from raising and turn on the third blade.

Alternatively, in variable step installation and debugging system,

when the first controller raises and turns on the first blade, an operation prohibition signal is sent to the second processor and the third processor;

when the second controller raises and turns on the second blade, an operation prohibition signal is sent to the first processor and the third processor; and

When the third controller raises and turns on the third blade, an operation prohibition signal is sent to the first processor and the second processor.

Alternatively, in variable step installation and debugging system,

when the first processor receives the operation prohibition signal, the first controller is prohibited from hoisting and turning on the first blade;

when the second processor receives the operation prohibition signal, the second controller is prohibited from lifting and turning on the second blade;

when the third processor receives the operation prohibition signal, the third controller is prohibited from lifting and turning on the third blade; and

The priority of the operation prohibition signal is higher than that of the first enable signal, the second enable signal and the third enable signal.

Alternatively, in variable step installation and debugging system,

the first controller, after hoisting the first blade, sends a hoisting end signal to the first processor, and after the first processor receives the hoisting end signal, the first controller may turn on the first blade;

the second controller, after hoisting the second blade, sends a hoisting end signal to the second processor, and after the second processor receives the hoisting end signal, the second controller turns on the second blade; and

The third controller, after hoisting the third blade, sends a hoisting end signal to the third processor, and after the third processor receives the hoisting end signal, the third controller turns on the third blade.

Alternatively, in the variable pitch installation and debugging system, the master controller further includes an anti-vortex induced vibration processor, and an anti-vortex induced vibration controller.

The first controller, after turning on the first blade, sends a first end-of-ignition signal to the antivortex-induced vibration processor.

The second controller, after turning on the second blade, sends a second turn-on end signal to the antivortex-induced vibration processor.

The third controller, after turning on the third blade, sends a third turn-on end signal to the anti-vortex induced vibration processor.

If the antivortex induced vibration processor simultaneously receives the first ignition end signal, the second ignition end signal and the third ignition end signal, the antivortex induced vibration controller can perform induced vibration position operation by antivortex in the first blade, the second blade and the third blade at the same time.

Alternatively, in the variable pitch installation and debugging system, the lifting operation comprises: lifting the first blade, the second blade or the third blade until the position is full with the variable pitch system, and then connecting the first blade, the second blade or the third blade to the variable pitch system.

The turning operation includes: turning on the variable pitch system, then operating the variable pitch system to drive the first blade, the second blade or the third blade to rotate, so as to adjust a pitch angle of the first blade, the second blade or the third blade.

The anti-vortex induced vibration position operation includes: operating the variable pitch system to rotate the first blade, the second blade and the third blade, to adjust the pitch angles of the first blade, the second blade and the third blade to the antivortex induced vibration position.

Alternatively, in variable pitch installation and debugging system, position sensors include:

a fourth position sensor, configured to be installed at the junction of the variable pitch system and the first blade, in order to detect whether the pitch angle of the first blade is in a position of anti-vortex induced vibration, and

sending an antivortex induced vibration signal to the first subcontroller if the inclination angle of the first blade is in the antivortex induced vibration position;

a fifth position sensor, configured to be installed at the junction of the variable pitch system and the second blade, in order to detect whether the pitch angle of the second blade is is in a position of antivortex-induced vibration, and

sending an antivortex induced vibration signal to the second subcontroller if the pitch angle of the second blade is in the antivortex induced vibration position; and

a sixth position sensor, configured to be installed at the junction of the variable pitch system and the third blade, in order to detect whether the pitch angle of the third blade is in an anti-vortex induced vibration position, and

send an antivortex induced vibration signal to the third subcontroller if the pitch angle of the third blade is in the antivortex induced vibration position.

Alternatively, in variable step installation and debugging system,

the first subcontroller, after receiving the antivortex induced vibration position signal from the fourth position sensor, sends a first antivortex induced vibration signal to the antivortex induced vibration processor;

the second subcontroller, after receiving the antivortex induced vibration position signal from the fifth position sensor, sends a second antivortex induced vibration signal to the antivortex induced vibration processor;

The third subcontroller, after receiving the antivortex induced vibration position signal from the sixth position sensor, sends a third antivortex induced vibration signal to the antivortex induced vibration processor.

Alternatively, in the variable pitch installation and debugging system, if the antivortex-induced vibration processor simultaneously receives the first antivortex-induced vibration signal, the second antivortex-induced vibration signal, and the third antivortex-induced vibration signal, The anti-vortex induced vibration processor generates an end of installation and debugging signal.

Alternatively, in the variable pitch installation and debugging system, the system also includes an operation panel. The control panel includes:

a first signal display device, configured to display a first display signal when the first processor receives the first security signal, wherein the first processor may display a second display signal when simultaneously receiving the second enable signal and the third signal enabling, the first processor may display a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor may display a fourth display signal when receiving the first anti-vortex induced vibration signal;

a second signal display device, configured to display a first display signal when the second processor receives the second security signal, wherein the second processor may display a second display signal when simultaneously receiving the first enable signal and the third signal enabling, the second processor may display a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor may display a fourth display signal when receiving the second anti-vortex induced vibration signal; and

a third signal display device, configured to display a first display signal when the third processor receives the third security signal, wherein the third processor may display a second display signal when simultaneously receiving the first enable signal and the second enabling signal, the third processor may display a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor may display a fourth display signal when receiving the third anti-vortex induced vibration signal.

Alternatively, in the variable pitch installation and debugging system, the operation panel further includes a first gear, a second gear, a third gear, a hoist button and a power button.

When the lift button or power button is pressed, the first blade is raised or turned on.

When the lift button or power button is pressed, the second blade is raised or turned on.

When the lift button or power button is pressed, the third blade is raised or turned on.

Alternatively, in the variable pitch installation and debugging system, the lifting button is locked under conventional conditions.

If the pointer is in first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the lift button is unlocked and can be pressed.

If the pointer is in second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the lift button is unlocked and can be pressed.

If the pointer is in third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the lift button is unlocked and can be pressed.

Alternatively, in the variable pitch installation and debugging system, the power button is locked in conventional conditions.

If the pointer is in first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the power button is unlocked and can be pressed.

If the pointer is in second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the power button is unlocked and can be pressed.

If the pointer is in third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the power button is unlocked and can be pressed.

Alternatively, in the variable pitch installation and debugging system, the operation panel further includes an anti-vortex induced vibration button.

The anti-vortex induced vibration button is locked under normal conditions.

If the anti-vortex induced vibration processor simultaneously receives the first end of ignition signal, the second end of ignition signal and the third end of ignition signal, the antivortex induced vibration button is unlocked and can be pressed.

The anti-vortex induced vibration button generates an anti-vortex induced vibration operation signal after being pressed, and the anti-vortex induced vibration controller performs the anti-vortex induced vibration position operation on the first blade, the second blade and the third shovel at the same time.

An operation method of a variable step installation and debugging system includes the following steps:

installing each of the multiple position sensors at a joint of a variable pitch system and a blade;

detect, by means of each position sensor, the position of the corresponding blade;

sending, for each position sensor, a corresponding blade position detection result to a subcontroller corresponding to the blade;

determining, by each of a plurality of subcontrollers, whether the blade is in a position that allows operation according to the result of detecting the position of the corresponding blade;

sending an enable signal to a master controller if the blade is in the operating enable position; and

operate, through the master controller, the blade in accordance with the enabling signal.

Alternatively, the variable step installation and debugging system operation method further includes:

adjusting, by means of the master controller, the pitch angles corresponding to at least two of the three blades to a safe position;

hoisting a blade and obtaining a position detection result through a position sensor during hoisting, so as to ensure that the pitch angles of the other two blades are in the safety position; and

After completing the lifting of a blade, turn on the blade, and acquire a position detection result through the position sensor during power-on, to ensure that the pitch angles of the other two blades are in the safe position.

Alternatively, the variable step installation and debugging system operation method further includes:

complete the hoisting and lighting of the three blades in turn; and when one blade is hoisted or lit, prohibit the other two blades from any operation;

adjust, through the master controller, the pitch angles of the three blades to an anti-vortex induced vibration position through the master controller, and acquire position detection results through the position sensor during hoisting, so as to ensure that the pitch angles of the three blades are in the antivortex-induced vibration position; and

turn off the three blades.

In the variable pitch installation and debugging system and the method of operation thereof provided by the present disclosure, each position sensor is configured to detect the position of each blade, each subcontroller is configured to determine whether each blade is in a position operation authorization; and a master controller is configured to operate the blade according to the enable signal if a certain blade is in the operation enable position. According to the present disclosure, it is safer and more reliable to convert a prior art manual determination operating mode of a blade into a set of intelligent determination system of sensors, sub-controllers and the master controller.

According to the present disclosure, the disordered, parallel and error-free state of static adjustment of wind turbines in the industry is converted into a serial, ordered and controllable safety state by means of an anti-error lock.

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a variable pitch installation and debugging system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the structure of an operation panel of a variable pitch installation and debugging system according to an embodiment of the present disclosure.

In the drawings: 100-master controller; 201-first subcontroller; 202-second subcontroller; 203-third subcontroller; 301-first position sensor; 302-second position sensor; 303-third position sensor; 304-fourth position sensor; 305-fifth position sensor; 306-sixth position sensor.

DESCRIPTION OF THE EMBODIMENTS

The present disclosure is disclosed in more detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that components in the various drawings may be exaggerated for illustrative purposes and may not necessarily be proportionally correct. In the various drawings, components that are identical or functionally identical are provided with the same reference numerals.

In the present disclosure, "arranged upon", "arranged on top of" and "arranged above" do not exclude the presence of an intermediary between them, unless specifically indicated. Furthermore, "arranged above or above..." only means the relative position relationship between two parts, and in certain cases, such as after reversing the direction of the product, it can also become "arranged below or below..." .", vice versa.

In the present disclosure, the embodiments are only intended to illustrate the solution of the present disclosure and should not be construed as limiting.

In the present disclosure, the quantifiers "one" and "an" do not exclude scenarios of a plurality of elements unless specifically indicated.

It should also be noted that, in the embodiments of the present disclosure, to For greater clarity and simplicity, only a portion of the parts or components may be shown, but those of ordinary skill in the art can understand that, under the teaching of the present disclosure, the required parts or components may be added in accordance with concrete scenarios. Furthermore, features of different embodiments of the present disclosure may be combined with each other unless otherwise indicated. For example, a corresponding or functionally identical or similar feature of the first embodiment may be replaced by a given feature of the second embodiment, and the resulting embodiment also falls within the disclosed scope or described scope of the present application.

It should also be noted that, within the scope of this disclosure, the terms "same", "same", "equal to" and other terms do not mean that the two values are absolutely the same, but rather allow for certain reasonable errors, i.e. That is, these terms also encompass the meanings of "substantially the same", "substantially the same" and "substantially the same as". By analogy, the terms "perpendicular to", "parallel to" and the like in the present disclosure equally encompass the meanings of "substantially perpendicular to", "substantially parallel to".

Furthermore, the step numbers of the methods of the present disclosure are not intended to limit the order of execution of the method steps. Unless otherwise specified, the steps in the method may be performed in a different order.

A variable pitch installation and debugging system and a method of operation thereof provided by the present disclosure are described below with reference to the accompanying drawings and specific embodiments.

The advantages and features of the present disclosure will be readily apparent from the following description and claims. It should be noted that the accompanying drawings are simplified and employ inaccurate proportions, which are only used to facilitate and clearly illustrate the objective of the embodiment of the present disclosure.

Furthermore, features of different embodiments of the present disclosure may be combined with each other unless otherwise indicated. For example, a corresponding or functionally identical or similar feature of the first embodiment may be replaced by a given feature of the second embodiment, and the resulting embodiment also falls within the disclosed scope or described scope of the present application.

The central idea of the present disclosure is to provide a system for installing and debugging variable pitch systems and a method of operation thereof, in order to solve the problem of the prior art that the installation and debugging of a variable pitch system variable is greatly affected by human factors.

To achieve the above idea, a variable pitch installation and debugging system is provided, including multiple position sensors, where each of the position sensors is configured to be installed at a joint between a variable pitch system and a blade, in order to detect the position of the blade, and send a blade position detection result to a subcontroller corresponding to the blade; multiple subcontrollers, where each subcontroller is configured to determine, according to the blade position detection result corresponding to the subcontroller, whether the blade is in an operation enable position and send an enable signal to a master controller if the blade is in the operation enabling position; and a master controller is configured to operate the blade according to the enable signal.

A variable pitch installation and debugging system provided by an embodiment of the present disclosure, as shown in FIG. 1, includes multiple position sensors (301 306), where each of the position sensors is configured to be installed at a joint between a variable pitch system and a blade, in order to detect the position of the blade, and send a blade position detection result to a subcontroller (201-203) corresponding to the blade; multiple subcontrollers (201-203), where each subcontroller (201-203) is configured to determine, according to the blade position detection result corresponding to the subcontroller (201-203), whether the blade is in a position of enabling operation, and sending an enabling signal to a master controller 100 if the blade is in the operating enabling position; and a master controller 100 is configured to operate the blade according to the enable signal.

From the fluid point of view, any non-aerodynamic object, at a certain constant flow rate, will alternately produce vortices on the surface of the structure on both sides of the object, which constitute the vortex-induced vibration effect. During the installation of the wind turbine tower, since the outer wall of the wind turbine tower is a smooth cylinder, each section of the tower can generate a strong vortex-induced vibration effect, which can cause the tower section to collapse. shift or even fall, causing serious hidden dangers during tower installation. The simulation shows that The life of a 140 m tower consumed by vortex-induced vibration in one minute is equivalent to that consumed by normal operation in four days, that is, fatigue failure will occur after about 30 hours of accumulated vortex induced vibration. If the wind speed reaches the critical range of wind speed in the actual operating process, danger may occur. When a blade is hoisted into the variable pitch system and connected to the variable pitch system for ignition debugging, if the pitch angle of the blade cannot be guaranteed, a vortex-induced vibration effect may occur, which may cause accidents. Especially, pitch angle adjustment cannot be guaranteed, since the blade being hoisted has not been connected to the variable pitch control system; If the other two blades are also in a dangerous position at the time, it is easy to cause a vortex-induced vibration effect. Under current circumstances, accidents are usually avoided by manually determining the pitch angle of the blade, but the entire installation and debugging process of the wind turbine blade is complicated and cumbersome, it is easy for unqualified or inattentive personnel to carry out various processes. in parallel or out of order, or even ignore the risks.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the position sensor includes: a first position sensor 301, configured to be installed at a joint of the variable pitch system and a first blade, with in order to detect whether a pitch angle of the first blade is in a safe position, and send a safe position signal to a first subcontroller 201 if the pitch angle of the first blade is in the safe position; a second position sensor 302, configured to be installed at a joint of the variable pitch system and a second blade, to detect whether a pitch angle of the second blade is in a safe position, and send a safe position signal to a second subcontroller 202 if the pitch angle of the second blade is in the safe position; and a third position sensor 303, configured to be installed at a junction of the variable pitch system and a third blade, to detect whether a pitch angle of the third blade is in a safe position, and send a safe position signal to a third subcontroller 203 if the pitch angle of the third blade is in the safe position. Three sensors are used to detect whether the three blades are in safe position respectively.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the position sensor includes: a first subcontroller 201, configured to send a first safe signal to a master controller 100 upon receiving the safe position signal from the first position sensor 301; a second subcontroller 202, configured to send a second safe signal to the master controller 100 upon receiving the position signal security of the second position sensor 302; and a third subcontroller 203, configured to send a third safe signal to the master controller 100 upon receiving the safe position signal from the third position sensor 303. The three subcontrollers correspond to the detection of three blades respectively, which can well distinguish the different states of the three blades, and send the safe position signals respectively for the function that the three blades cannot be operated at the same time.

In one embodiment of the present disclosure, in the variable step installation and debugging system, the master controller 100 includes a first processor, a second processor, and a third processor. The first processor, if it receives the first secure signal, generates a first enable signal, and sends the first enable signal to the second processor and the third processor, respectively. The second processor, if it receives the second secure signal, generates a second enable signal, and sends the second enable signal to the first processor and the third processor, respectively. The third processor, if it receives the third secure signal, generates a third enable signal and sends the third enable signal to the first processor and the second processor, respectively. That is, when a certain blade is actuated, it is necessary to ensure that the other two blades are in the safe position, so it is necessary to send the enable signal to the other two processors.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the master controller 100 includes a first controller, a second controller, and a third controller. If the first processor can simultaneously receive a second enable signal and a third enable signal, the first controller can perform the hoist operation and the ignition operation on the first blade, otherwise, the hoist operation and the ignition operation ignition on the first blade are prohibited; If the second processor can simultaneously receive the first enable signal and the third enable signal, the second controller can perform the hoist operation and the ignition operation on the second blade, otherwise, the hoist operation and the ignition operation ignition on the second blade are prohibited; If the third processor can simultaneously receive the first enable signal and the second enable signal, the third controller can perform the hoist operation and the ignition operation on the third blade, otherwise, the hoist operation and the ignition operation ignition on the third blade are prohibited. That is, it is necessary to ensure that the other two blades are in the safe position when a certain blade is operated.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, when the first controller raises and turns on the first blade, an operation prohibition signal is sent to the second processor and the third processor. When the second controller raises and turns on the second blade, a no-run signal is sent to the first processor and the third processor. When the third controller raises and turns on the third blade, an operation prohibition signal is sent to the first processor and the second processor. In the variable pitch installation and debugging system, when the first processor receives the operation prohibition signal, the first controller is prohibited from hoisting and turning on the first blade. When the second processor receives the operation prohibition signal, the second controller is prohibited from lifting and turning on the second blade. When the third processor receives the operation prohibition signal, the third controller is prohibited from lifting and turning on the third blade. The priority of the operation prohibition signal is higher than that of the first enable signal, the second enable signal and the third enable signal. When a certain blade is actuated, the other two blades are free from any operation, otherwise the state in which the other two blades are in the safety position will be changed, causing the effect of vortex-induced vibration.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the first controller, after hoisting the first blade, sends a hoisting end signal to the first processor, and after the first processor receives the end of hoist signal, the first controller can turn on the first blade. The second controller, after hoisting the second blade, sends a hoisting end signal to the second processor, and after the second processor receives the hoisting end signal, the second controller can turn on the second blade. The third controller, after hoisting the third blade, sends a hoisting end signal to the third processor, and after the third processor receives the hoisting end signal, the third controller can turn on the third blade. That is, one blade can be turned on only after the lift has been completed, it is still necessary to ensure that the other two blades are in the safe position, that is, the first processor has to continuously receive the second enable signal and the third enable signal, while receiving the lifting end signal, and does not receive the operation prohibition signal. The first blade can only be turned on when the above conditions are met. The ignition operation is also unique. When one blade is activated, the other two must remain in their original safety position.

In one embodiment of the present disclosure, in the installation and debugging system of variable pitch, the master controller 100 further includes an anti-vortex induced vibration processor and an anti-vortex induced vibration controller. The first controller, after turning on the first blade, sends a first end-of-ignition signal to the antivortex-induced vibration processor. The second controller, after turning on the second blade, sends a second turn-on end signal to the antivortex-induced vibration processor. The third controller, after turning on the third blade, sends a third turn-on end signal to the anti-vortex induced vibration processor. If the antivortex induced vibration processor simultaneously receives the first ignition end signal, the second ignition end signal and the third ignition end signal, the antivortex induced vibration controller can perform induced vibration position operation by antivortex in the first blade, the second blade and the third blade at the same time. Once the lifting and ignition of the three blades is completed, they are subjected to the anti-vortex induced vibration operation with a single key, which is safe, simple and reliable.

In one embodiment of the present disclosure, in the variable pitch installation and purification system, the lifting operation includes: lifting the first blade, the second blade or the third blade until the position is in abutment with the lifting system. variable pitch and then connect the first blade, second blade or third blade to the variable pitch system. The turning operation includes: turning on the variable pitch system, then operating the variable pitch system to drive the first blade, the second blade or the third blade to rotate, so as to adjust a pitch angle of the first blade, the second blade or the third blade. The anti-vortex induced vibration position operation includes: operating the variable pitch system to rotate the first blade, the second blade and the third blade, to adjust the pitch angles of the first blade, the second blade and the third blade to the antivortex induced vibration position.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the position sensor includes: a fourth position sensor 304, configured to be installed at the junction of the variable pitch system and the first blade, with in order to detect whether the pitch angle of the first blade is in a position of antivortex-induced vibration, and send an antivortex-induced vibration signal to the first subcontroller 201 if the pitch angle of the first blade is in the antivortex induced vibration position; a fifth position sensor 305, configured to be installed at the junction of the variable pitch system and the second blade, in order to detect whether the pitch angle of the second blade is in a position of vibration induced by antivortex, and sending an antivortex induced vibration signal to the second subcontroller 202 if the pitch angle of the second blade is in the antivortex induced vibration position; and a sixth position sensor, configured to be installed at the junction of the variable pitch system and the third blade, in order to detect whether the pitch angle of the third blade is in a position of antivortex-induced vibration, and sending an antivortex induced vibration signal to the third subcontroller 203 if the pitch angle of the third blade is in the antivortex induced vibration position. All of the above sensors are configured to detect whether the pitch angles of the three blades are adjusted to the antivortex induced vibration position to ensure that the adjustment has been made.

In an embodiment of the present disclosure, in the variable pitch installation and debugging system, the first subcontroller 201 is configured to send a first antivortex-induced vibration signal to the antivortex-induced vibration processor after receiving the position signal of antivortex-induced vibration of the fourth position sensor 304. The second subcontroller 202 is configured to send a second antivortex-induced vibration signal to the antivortex-induced vibration processor after receiving the antivortex-induced vibration position signal from the fifth position sensor 305. The third subcontroller 203 is configured to send a third antivortex-induced vibration signal to the antivortex-induced vibration processor after receiving the antivortex-induced vibration position signal from the sixth position sensor 306. In, the variable pitch installation and debugging system, if the antivortex induced vibration processor simultaneously receives the first antivortex induced vibration signal, the second antivortex induced vibration signal and the third antivortex induced vibration signal, the Anti-vortex induced vibration processor generates an end of installation and debugging signal. So far, all the installation and debugging work is finished, and the operator can receive the signal at a glance. The entire installation and debugging process is intertwined. Due to the mutual exclusion of operation prohibition signals between the three blades, as well as the unidirectional sequence of signals such as lifting end signal and ignition end signal, parallel operation cannot be achieved, which which makes the process more orderly and reliable and has a foolproof function, thus avoiding the risk of erroneous manual operation.

To simplify the operation of the variable pitch installation and debugging system, in one embodiment of the present disclosure, the variable pitch installation and debugging system further includes a control panel. The control panel includes: a first device 410 signal display, configured to display a first display signal when the first processor receives the first security signal, where the first processor may display a second display signal when simultaneously receiving the second enable signal and the third enable signal , the first processor may display a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor may display a fourth display signal when receiving the first anti-vortex induced vibration signal; a second signal display device, configured to display a first display signal when the second processor receives the second security signal, wherein the second processor can display a second display signal when simultaneously receiving the first enable signal and the third signal enabling, the second processor may display a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor may display a fourth display signal when receiving the second anti-vortex induced vibration signal; and a third signal display device, configured to display a first display signal when the third processor receives the third security signal, wherein the third processor may display a second display signal when simultaneously receiving the first enable signal and the second enabling signal, the third processor may display a third display signal when receiving the operation prohibition signal, and the vortex-induced vibration processor may display a fourth display signal when receiving the third vortex-induced vibration signal. For example, three LED lights are provided, the first display signal is blue, the second display signal is yellow, the third display signal is red, the fourth display signal is green, etc. In this way, the operator knows at a glance whether the operation can be carried out, and how to operate in the next step.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the operation panel further has a first gear 501, a second gear 501, a third gear 501, a lifting button and a power button. When the lift button or power button is pressed, the first blade is raised or turned on. When the lift button or power button is pressed, the second blade is raised or turned on. When the lift button or power button is pressed, the third blade is raised or turned on.

In one embodiment of the present disclosure, in the installation and debugging system of variable pitch, the lifting button is locked under normal conditions. If the pointer is in first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the lift button is unlocked and can be pressed. If the pointer is in second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the lift button is unlocked and can be pressed. If the pointer is in third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the lift button is unlocked and can be pressed.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the power button is locked under normal conditions. If the pointer is in first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the power button is unlocked and can be pressed. If the pointer is in second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the power button is unlocked and can be pressed. If the pointer is in third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the power button is unlocked and can be pressed.

In one embodiment of the present disclosure, in the variable pitch installation and debugging system, the operation panel further includes an anti-vortex induced vibration button. The anti-vortex induced vibration button is locked under normal conditions. If the anti-vortex induced vibration processor simultaneously receives the first end of ignition signal, the second end of ignition signal and the third end of ignition signal, the antivortex induced vibration button is unlocked and can be pressed. The anti-vortex induced vibration button generates an anti-vortex induced vibration operation signal after being pressed, and the anti-vortex induced vibration controller performs the anti-vortex induced vibration position operation on the first blade, the second blade and the third shovel at the same time.

A method of operating a variable pitch installation and debugging system is further provided, which includes the following steps: installing each of multiple position sensors at a joint of a variable pitch system and a blade; detect, for each position sensor, the position of the corresponding blade; sending, for each position sensor, a corresponding blade position detection result to a subcontroller corresponding to the blade; determine, for each of multiple subcontrollers, whether the blade is in an operation enabling position according to the position detection result of the corresponding blade; sending an enable signal to a master controller 100 if the blade is in the operating enable position; and operating, by the master controller 100, the blade in accordance with the enable signal.

In one embodiment of the present disclosure, the method of operation of the variable pitch installation and debugging system further includes the following steps: adjusting, by the master controller 100, the pitch angles corresponding to at least two of the three blades to a safe position; hoisting a blade, and acquiring a position detection result through a position sensor during hoisting, so as to ensure that the pitch angles of the other two blades are in the safe position; after completing lifting a blade, power on the blade, and acquire a position detection result through the position sensor during power-on, so as to ensure that the pitch angles of the other two blades are in the safe position .

In one embodiment of the present disclosure, the operation method of the variable pitch installation and debugging system further includes the following steps: completing the hoisting and ignition of the three blades in turns; and when one blade is hoisted or lit, prohibit the other two blades from any operation; adjust, by the master controller 100, the pitch angles of the three blades to an anti-vortex induced vibration position through the master controller, and acquire position detection results through the position sensor during lifting, to ensure that the pitch angles of the three blades are in the antivortex-induced vibration position; and turn off the three blades.

In the variable pitch installation and debugging system and the method of operation thereof provided by the present disclosure, each position sensor is configured to detect the position of each blade, each subcontroller is configured to determine whether each blade is in a position operation authorization; and a master controller 100 is configured to operate the blade according to the enable signal if a certain blade is in the operation enable position. According to the present disclosure, it is safer and more reliable to convert a prior art manual determination operating mode of a blade into a set of intelligent determination system of sensors, sub-controllers and the master controller 100.

According to the present disclosure, the disordered, parallel and error-free state of static adjustment of wind turbines in the industry becomes a state of serial security, ordered and controllable through an anti-error lock.

In the variable pitch installation and debugging system provided by the present disclosure, the connection relationship between the subcontroller and the variable pitch system is as follows: three sets of storage batteries, axis control boxes (to accommodate subdrivers) , servo motors and reducers are placed in the center, one set for each blade, and a main electrical switch box is placed in a junction between the center and the motor room.

The communication bus and cable of the entire system are connected to the main controller of a machine room by slip rings. The master controller communicates with the axis control boxes in the center through field buses, so as to achieve the purpose of controlling three independent variable pitch devices. The variable pitch electrical system is a system with three blades equipped with an independent variable pitch electrical system. A mechanical part mainly includes rotating bearing, reducer, driver, etc. The reducer is fixed to the hub, an inner ring of the rotating ring is installed on the blade, and an outer ring of a blade bearing is fixed to the hub. When the variable pitch electrical system is turned on, the servo motor drives a pinion of the output shaft of the reducer to rotate, and the pinion meshes with the inner ring of the rotating ring, thus driving the inner ring of the rotating ring to rotate together with the blade, thus achieving the purpose of changing the pitch angle.

After the entire debugging process is completed, the master controller sends a command value to the variable pitch electrical system according to the wind speed, generator power and rotation speed, and the variable pitch electrical system returns the actual value and an operating state to the master controller. The variable pitch electrical system should meet the requirements of quick response to the command of the main controller, independent variable pitch system, high-performance synchronous mechanism, safety and reliability, etc. The variable pitch control system makes the angle of the blade change in a certain range (0-90 degrees), in order to adjust the power output, and the problem that the power generation of the pitch generator set fixed can be low in summer and excessive in winter after determining the angle of attack. In the low wind speed section, the power is optimized to better convert wind energy into electrical energy.

In addition, the system operation method of installation and debugging step variable of the present disclosure can also be used to provide manual stepping and other safe maintenance and overhaul functions when the wind turbine is in a maintenance state. When the mains voltage drops, a backup power supply is used to provide working voltage to the electrical system, which mainly completes the feathering function. A variable pitch adjustment mode of an axle cab should be divided into two modes, such as an automatic mode and a manual mode. Auto/manual mode adjustment is achieved by a two-position switch, and forward and reverse adjustment and stop adjustment of manual mode can be achieved by a three-position switch. When the wind turbine is in maintenance status and the variable pitch adjustment is in manual mode, an independent variable pitch can be achieved for each blade. However, only a shaft cab can adjust the pitch angle by rotating a variable step motor in the forward and reverse directions through the corresponding control switch; and the pitch angles of the other two blades must be at the 90° position, otherwise the variable pitch manual shifting function will fail.

A control switch must be located in the axle cabin. When the wind turbine is in maintenance status, and personnel need to enter the center to maintain and check the variable pitch system, the control switch should be turned off, a brake of the variable pitch motor should be locked, and a power supply The inverter's control power is turned off to ensure that the pitch angle remains at a fixed position. The tilt angle can only be changed after turning on the control switch. Additionally, the control switch must always be on. The pitch angle signals collected by two encoders (ENCODER) configured for each blade are compared, and when the angle deviation is less than 2°, the PLC (programmable logic controller) is allowed to adjust the pitch angle of the blade. when necessary. Otherwise, as long as the pitch angle of the blade is less than 90°, the blade will be feathered towards 90° at a speed of 7° per second, and the feathering of the other blades will be completed by software control. All blades are equipped with a limit switch in the 91° position, but not in the 0° direction.

Whether the current pitch angle of the blade is less than 0° is determined by converting the measurement results of two ENCODER sensors. The axle cab variable pitch adjustment mode is in the automatic position. When any of the following conditions occur, a defective axle cab hardware system must ensure that the corresponding blade feathers in a 90° direction at a speed of 7° per second. In the case of the cabin with unaffected axles, the blade feathering is carried out by software control.

If a communication bus between a DP slave station and a PLC master station in any axle cabin fails, a wind turbine safety chain composed of impeller overspeed, a vibration switch, an emergency stop button is disconnected. TOPBOX, a converter cabin emergency stop button and a yaw limit switch in series and two thruster lock signals connected in series with the safety chain (24V DC signal). Regardless of whether any ENCODER fails or the deviation between two ENCODER measurement results of the same blade exceeds the specified threshold, the pitch angle of any blade is less than -2° in the variable pitch process. The safety chain hardware system and a release loop fail. For a three-phase AC variable step asynchronous motor, its converter control circuit must provide two speed regulation modes: U/F open-loop frequency control, and closed-loop space vector control. The default setting is closed loop spatial vector control. When a speed sensor is damaged, the inverter control circuit should immediately change the speed regulation mode to the open loop frequency control U/F mode, and make the corresponding blade feather toward a 90° direction. at a speed of 7° per second, and the feathering of the rest of the blades is controlled by software. In the variable pitch process of the wind turbine, three variable pitch motors must be started successively to prevent a slip ring from being overloaded when the three variable pitch motors start at the same time. The start and stop of all axle cab cooling fans must be controlled by software. Whether the mains voltage fails or not, a direct determination method should be preferred, followed by the determination method through the backup power supply voltage. The spindle cabin should provide a control interface to facilitate the operation test of the standby power supply, mainly referring to the operation test under the condition of mains voltage power failure. The axle cabin must provide a control interface to facilitate switching a speed regulation mode of the inverter in the axle cabin.

The position sensor can be a rotary encoder, and an incremental rotary encoder obtains that the angular displacement of its angular code disk increases (in forward direction) or decreases (reverse direction) by converting the time sequence and the phase relationship of its angular code disk through two internal photosensitive receiving tubes. After connecting a digital circuit, especially a single-chip microcomputer, the incremental rotary encoder is cheaper and more advantageous than an absolute rotary encoder in angle measurement and angular velocity measurement.

Two encoders configured for each blade should ensure that the blade pitch angle measurement accuracy reaches 0.01. A corresponding module is arranged in the axle cabin to display the current pitch angle of the blade, so as to ensure that the pitch angle cannot exceed the limit switch position at 91° in the manual variable pitch mode. . When the variable pitch setting mode of the axle cab is in automatic mode, if the pitch angle of the wind turbine exceeds the limit switch position by 91° in the feathering process, the wind turbine can pass at that time to a maintenance state, and the pitch angle can be adjusted back to the 90° position by the variable pitch adjustment mode of the axle cab. The variable pitch adjustment mode of the axle cab is in automatic mode to prevent the pitch angle from exceeding the limit switch by 91°. When the step angle reaches the limit switch, the brake of the variable step motor is locked, a release signal of the axis cabin inverter and a variable step speed command are invalid, which will also cause the variable step motor is stationary.

In summary, the aforementioned embodiments have described in detail the different configurations of the variable pitch installation and debugging system and an operation method thereof. Certainly, the present disclosure includes, but is not limited to, the configurations listed in the aforementioned embodiments, and anything that is transformed on the basis of the configurations provided in the aforementioned embodiments belongs to the protection scope of the present disclosure. Those skilled in the art can infer conclusions from the above embodiments.

The embodiments of this specification are described progressively, each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. Since the system disclosed in the embodiments corresponds to the method disclosed by the embodiments, the description thereof is relatively simple, and for relevant matters references can be made to the description of the method.

The above description is only a description of the preferred embodiment of the present disclosure, rather than limiting the scope of this disclosure. All changes and modifications made by those skilled in the art in accordance with the above disclosure fall within the scope of protection of the claims.

Claims (21)

1. A variable step installation and debugging system, comprising: a plurality of position sensors, wherein each of the position sensors is configured to be installed at a junction of a variable pitch system and a blade, in order to detect the position of the blade; a plurality of subcontrollers, wherein each subcontroller is configured to perform the following actions: determine, according to the position of the blade corresponding to the subcontroller, whether the blade is in a position that allows operation, and sending an enable signal to a master controller if the blade is in the operating enable position; and a master controller, -configured to operate the blade according to the enable signal. 2. The variable pitch installation and debugging system according to claim 1, wherein the position sensors comprise: a first position sensor, configured to be installed at a joint of the variable pitch system and a first blade, wherein the first position sensor is configured to detect whether a pitch angle of the first blade is in a safe position, and sending a safe position signal to a first subcontroller if the pitch angle of the first blade is in the safe position; a second position sensor, configured to be installed at a joint of the variable pitch system and a second blade, wherein the second position sensor is configured to detect whether a pitch angle of the second blade is in a safe position, and sending a safe position signal to a second subcontroller if the pitch angle of the second blade is in the safe position; and a third position sensor, configured to be installed at a joint of the variable pitch system and a third blade, wherein the second position sensor is configured to detect whether a pitch angle of the third blade is in a safe position, and send a safe position signal to a third subcontroller if the pitch angle of the third blade is in the safe position. 3. The variable step installation and debugging system according to the claim 2, in which the first subcontroller sends a first safe signal to the master controller after receiving the safe position signal from the first position sensor; I the second subcontroller sends a second safe signal to the master controller after receiving the safe position signal from the second position sensor; I The third subcontroller sends a third safe signal to the master controller after receiving the safe position signal from the third position sensor. 4. The variable pitch installation and debugging system according to claim 3, wherein the master controller comprises a first processor, a second processor and a third processor, wherein the first processor, if it receives the first secure signal, generates a first enable signal, and sends the first enable signal to the second processor and the third processor, respectively; the second processor, if it receives the second security signal, generates a second enable signal, and sends the second enable signal to the first processor and the third processor, respectively; and The third processor, if it receives the third secure signal, generates a third enable signal and sends the third enable signal to the first processor and the second processor, respectively. 5. The variable pitch installation and debugging system according to claim 4, wherein the master controller comprises a first controller, a second controller and a third controller, wherein if the first processor is capable of simultaneously receiving the second enable signal and the third enable signal, the first controller is capable of hoisting and turning on the first blade, otherwise, the first controller is prohibited from hoisting and turning on the first blade; if the second processor is capable of simultaneously receiving the first enable signal and the third enable signal, the second controller is capable of hoisting and turning on the second blade, otherwise, the second controller is prohibited from hoisting and turning on the second blade; and If the third processor is capable of simultaneously receiving the first enable signal and the second enable signal, the third controller is capable of hoisting and turning on the second blade, otherwise the third controller is prohibited from hoisting and turning on the third blade. 6. The variable pitch installation and debugging system according to claim 5, wherein when the first controller raises and turns on the first blade, an operation prohibition signal is sent to the second processor and the third processor; when the second controller raises and turns on the second blade, an operation prohibition signal is sent to the first processor and the third processor; and When the third controller raises and turns on the third blade, an operation prohibition signal is sent to the first processor and the second processor. 7. The variable pitch installation and debugging system according to claim 6, wherein when the first processor receives the operation prohibition signal, the first controller is prohibited from hoisting and turning on the first blade; when the second processor receives the operation prohibition signal, the second controller is prohibited from lifting and turning on the second blade; when the third processor receives the operation prohibition signal, the third controller is prohibited from lifting and turning on the third blade; and The priority of the operation prohibition signal is higher than that of the first enable signal, the second enable signal and the third enable signal. 8. The variable pitch installation and debugging system according to claim 7, wherein the first controller, after hoisting the first blade, sends a hoisting end signal to the first processor, and after the first processor receives the hoisting end signal, the first controller is capable of turning on the first blade; the second controller, after hoisting the second blade, sends a hoisting end signal to the second processor, and after the second processor receives the hoisting end signal, the second controller is capable of turning on the second blade; and The third controller, after hoisting the third blade, sends a hoisting end signal to the third processor, and after the third processor receives the hoisting end signal, the third controller is capable of turning on the third blade. 9. The variable pitch installation and debugging system according to claim 8, wherein the master controller further comprises an anti-vortex induced vibration processor, and an anti-vortex induced vibration controller; the first controller, after turning on the first blade, sends a first end of signal ignition to anti-vortex induced vibration processor; the second controller, after turning on the second blade, sends a second turn-on end signal to the anti-vortex induced vibration processor; the third controller, after turning on the third blade, sends a third turn-on end signal to the anti-vortex induced vibration processor; and If the vortex induced vibration processor simultaneously receives the first ignition end signal, the second ignition end signal and the third ignition end signal, the vortex induced vibration controller is capable of performing a position operation. Vortex-induced vibration on the first blade, second blade and third blade at the same time. 10. The variable pitch installation and purification system according to claim 9, wherein the lifting operation comprises: lifting the first blade, the second blade or the third blade until the position is in abutment with the variable pitch system and then connect the first blade, the second blade or the third blade to the variable pitch system; The ignition operation comprises: turning on the variable pitch system, then operating the variable pitch system to rotate the first blade, the second blade or the third blade, in order to adjust a pitch angle of the first blade, the second shovel or the third shovel; and The anti-vortex induced vibration position operation comprises: operating the variable pitch system to rotate the first blade, the second blade and the third blade, so as to adjust the pitch angles of the first blade, the second blade and the third blade to the antivortex induced vibration position. 11. The variable pitch installation and debugging system according to claim 10, wherein the position sensors comprise: a fourth position sensor, configured to be installed at the junction of the variable pitch system and the first blade, in order to detect whether the pitch angle of the first blade is in a position of anti-vortex induced vibration, and sending an antivortex induced vibration signal to the first subcontroller if the inclination angle of the first blade is in the antivortex induced vibration position; a fifth position sensor, configured to be installed at the junction of the variable pitch system and the second blade, in order to detect whether the pitch angle of the second blade is in a position of anti-vortex induced vibration, and sending an antivortex induced vibration signal to the second subcontroller if the pitch angle of the second blade is in the antivortex induced vibration position; a sixth position sensor, configured to be installed at the junction of the variable pitch system and the third blade, in order to detect whether the pitch angle of the third blade is in an anti-vortex induced vibration position, and send an antivortex induced vibration signal to the third subcontroller if the pitch angle of the third blade is in the antivortex induced vibration position. 12. The variable pitch installation and purification system according to claim 11, wherein the first subcontroller, after receiving the antivortex induced vibration position signal from the fourth position sensor, sends a first antivortex induced vibration signal to the antivortex induced vibration processor; the second subcontroller, after receiving the antivortex induced vibration position signal from the fifth position sensor, sends a second antivortex induced vibration signal to the antivortex induced vibration processor; and The third subcontroller, after receiving the antivortex induced vibration position signal from the sixth position sensor, sends a third antivortex induced vibration signal to the antivortex induced vibration processor. 13. The variable pitch installation and debugging system according to claim 12, wherein, if the antivortex induced vibration processor simultaneously receives the first antivortex induced vibration signal, the second antivortex induced vibration signal and The third anti-vortex induced vibration signal, the anti-vortex induced vibration processor generates an end of installation and debugging signal. 14. The variable pitch installation and debugging system according to claim 13, further comprising an operations panel, wherein the operations panel comprises: a first signal display device, configured to display a first display signal when the first processor receives the first security signal, wherein the first processor is capable of displaying a second display signal when simultaneously receiving the second enable signal and the third enabling signal, the first processor is capable of displaying a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor is capable of displaying a fourth display signal when receiving the first anti-vortex induced vibration signal; a second signal display device, configured to display a first display signal when the second processor receives the second security signal, wherein the second processor is capable of displaying a second display signal when simultaneously receiving the first enable signal and the third enable signal, the second processor is capable of displaying a third display signal when receiving the operation prohibition signal, and the anti-vortex induced vibration processor is capable of displaying a fourth display signal when receiving the second signal. antivortex induced vibration; and a third signal display device, configured to display a first display signal when the third processor receives the third security signal, wherein the third processor is capable of displaying a second display signal when simultaneously receiving the first enable signal and the second enable signal, the third processor is capable of displaying a third display signal when receiving the operation prohibition signal, and the vortex induced vibration processor is capable of displaying a fourth display signal when receiving the third signal. vortex-induced vibration. 15. The variable pitch installation and debugging system according to claim 12, wherein the operation panel further comprises a first gear, a second gear, a third gear, a hoist button and a power button; if a pointer is in the first gear, when the hoist button or the power button is pressed, the first blade is hoisted or turned on; if one pointer is in second gear, when the hoist button or power button is pressed, the second blade is hoisted or turned on; If a pointer is in third gear, when the hoist button or power button is pressed, the third blade is hoisted or turned on. 16. The variable pitch installation and debugging system according to claim 15, wherein the lifting button is locked under normal conditions; If the pointer is in first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the hoist button is activated. unlocks and can be pressed; if the pointer is in the second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the hoist button is unlocked and can be pressed; and If the pointer is in third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the lift button is unlocked and can be pressed. 17. The variable pitch installation and debugging system according to claim 15, wherein the power button is locked under normal conditions; if the pointer is in the first gear and the first processor simultaneously receives the second enable signal and the third enable signal, the power button is unlocked and can be pressed; if the pointer is in the second gear and the second processor simultaneously receives the first enable signal and the third enable signal, the power button is unlocked and can be pressed; and If the pointer is in the third gear and the third processor simultaneously receives the first enable signal and the second enable signal, the power button is unlocked and can be pressed. 18. The variable pitch installation and debugging system according to claim 12, wherein the operation panel further comprises an anti-vortex induced vibration button; the anti-vortex induced vibration button is locked under normal conditions; if the anti-vortex induced vibration processor simultaneously receives the first ignition end signal, the second ignition end signal and the third ignition end signal, the anti-vortex induced vibration button is unlocked and can be pressed; the antivortex induced vibration button generates an antivortex induced vibration operation signal after being pressed, and the antivortex induced vibration controller performs the antivortex induced vibration position operation on the first blade, the second blade and the third shovel at the same time. 19. A method of operation of a variable step installation and debugging system, comprising the following steps: installing each of a plurality of position sensors at a joint of a variable pitch system and a blade; detect, by means of each position sensor, the position of the corresponding blade; sending, for each position sensor, a corresponding blade position detection result to a subcontroller corresponding to the blade; determining, by each of a plurality of subcontrollers, whether the blade is in a position that allows operation according to the result of detecting the position of the corresponding blade; sending an enable signal to a master controller if the blade is in the operating enable position; and operate, through the master controller, the blade in accordance with the enabling signal. 20. The method of operation of a variable pitch installation and purification system according to claim 19, further comprising the following steps: adjusting, by means of the master controller, the pitch angles corresponding to at least two of the three blades to a safe position; hoisting a blade, and acquiring a position detection result through a position sensor during hoisting, so as to ensure that the pitch angles of the other two blades are in the safe position; After completing the lifting of a blade, turn on the blade, and acquire a position detection result through the position sensor during power-on, to ensure that the pitch angles of the other two blades are in the safe position. 21. The method of operation of a variable pitch installation and purification system according to claim 20, further comprising the following steps: complete the hoisting and lighting of the three blades in turn; and when one blade is hoisted or lit, prohibit the other two blades from any operation; adjust, through the master controller, the pitch angles of the three blades to an anti-vortex induced vibration position through the master controller, and acquire position detection results through the position sensor during hoisting, so as to ensure that the pitch angles of the three blades are in the antivortex-induced vibration position; and turn off the three blades.