CN118034026A - Processing method of given signal in furnace pressure control system of thermal power plant boiler - Google Patents

Processing method of given signal in furnace pressure control system of thermal power plant boiler Download PDF

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Publication number
CN118034026A
CN118034026A CN202410167595.3A CN202410167595A CN118034026A CN 118034026 A CN118034026 A CN 118034026A CN 202410167595 A CN202410167595 A CN 202410167595A CN 118034026 A CN118034026 A CN 118034026A
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signal
control system
thermal power
given
pressure control
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李军
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Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)

Abstract

The invention provides a process given signal processing method and a system of a boiler furnace pressure control system of a thermal power generating unit, wherein the method comprises the following steps: acquiring a process given signal of a boiler furnace pressure control system of a thermal power generating unit, and inputting the process given signal into a first-order inertial filter to obtain a first-order inertial filter signal; the first-order inertial filter signal is connected to a differentiator to obtain a differentiated signal; the differential signal is connected to a proportional controller to obtain a proportional control signal; and accessing the given process signal to the subtracter and the proportional control signal to obtain the given process signal of the boiler furnace pressure control system of the thermal power unit. The overshoot can be reduced, and the problem of large overshoot in a high-order process is avoided, so that the feedback control performance of the boiler furnace pressure control system of the thermal power generating unit can be effectively improved.

Description

Process given signal processing method of boiler furnace pressure control system of thermal power generating unit
Technical Field
The invention relates to the field of industrial process control, in particular to a process given signal processing method and system of a boiler furnace pressure control system of a thermal power generating unit.
Background
In industrial process control practice, engineering researchers invented an engineering fastest controller (ENGINEERING FASTEST controllers, EFCs) to significantly improve feedback control performance. The category of EFC includes: an engineering fastest Proportional-Integral (ENGINEERING FASTEST pro-port-Integral, EFPI) controller, an accelerated engineering fastest Proportional-Integral (ACCELERATED ENGINEERING FASTEST pro-port-Integral, AEFPI) controller, and an engineering fastest look-ahead observer (ENGINEERING FASTEST LEADING observer, EFLO).
At present, the acceleration type engineering fastest proportional-integral controller is widely applied to a boiler furnace pressure control system of a thermal power generating unit. In practice, however, the problem of large process overshoot can occur in the boiler furnace pressure control system of the thermal power generating unit, and further the feedback control performance of the boiler furnace pressure control system of the thermal power generating unit can be affected.
Disclosure of Invention
The invention provides a process given signal processing method and a process given signal processing system for a thermal power generating unit boiler furnace pressure control system, which are used for solving the technical problem of how to improve the feedback control performance of the thermal power generating unit boiler furnace pressure control system.
In order to solve the technical problems, the embodiment of the invention provides a process given signal processing method of a boiler furnace pressure control system of a thermal power generating unit, which comprises the following steps:
Acquiring a process given signal of a boiler furnace pressure control system of a thermal power generating unit, and inputting the process given signal into a first-order inertial filter to obtain a first-order inertial filter signal;
the first-order inertial filter signal is connected to a differentiator to obtain a differentiated signal;
the differential signal is connected to a proportional controller to obtain a proportional control signal;
And accessing the given process signal to the subtracter and the proportional control signal to obtain the given process signal of the boiler furnace pressure control system of the thermal power unit.
Preferably, the first-order inertial filter includes:
wherein f FOIF(s) is the laplace transfer function of the first-order inertial filter; t FOIF is the time constant of the first order inertial filter, and s is the Laplacian.
Preferably, the differentiator comprises:
Wherein f CD(s) is the laplace transfer function of the differentiator; t CD is the time constant of the differentiator and s is the Laplacian.
Preferably, the ratio controller includes:
fPCO(s)＝KPCO；
Wherein f PCO(s) is the laplace transfer function of the proportional controller; k PCO is the gain of the proportional controller and s is the Laplacian.
Preferably, the process-given processing signal is obtained according to the following formula:
Wherein f EFCSPGG(s) is a laplace transfer function given by a process of the boiler furnace pressure control system of the thermal power generating unit, f FOIF(s) is a laplace transfer function of the first-order inertial filter, T FOIF is a time constant of the first-order inertial filter, f CD(s) is a laplace transfer function of the differentiator, T CD is a time constant of the differentiator, f PCO(s) is a laplace transfer function of the proportional controller, K PCO is a gain of the proportional controller, and s is a laplace operator.
Preferably, the input end of the process-given signal is connected with the subtracted end of the subtracter and the input end of the first-order inertial filter, the output end of the first-order inertial filter is connected with the input end of the differentiator, the output end of the differentiator is connected with the input end of the proportional controller, the output end of the proportional controller is connected with the subtracted end of the subtracter, and the output end of the subtracter is connected with the output end of the process-given processing signal.
Correspondingly, the embodiment of the invention also provides a process given signal processing system of the boiler furnace pressure control system of the thermal power generating unit, which comprises a first-order inertial filter, a differentiator, a proportional controller and a subtracter; wherein,
The first-order inertia filter is used for obtaining a process given signal of a boiler furnace pressure control system of the thermal power generating unit and obtaining a first-order inertia filter signal; and the first-order inertial filter signal is connected to a differentiator;
The differentiator is used for obtaining a differentiated signal based on the first-order inertial filter signal; and the differential signal is connected to a proportional controller;
The proportional controller is used for obtaining a proportional control signal based on the differential signal; the proportional control signal is connected to the number reducing end of the subtracter;
and the subtracter obtains a process given processing signal of the thermal power unit boiler furnace pressure control system based on the process given signal obtained by the subtracter and the proportion control signal.
Preferably, the first-order inertial filter includes:
wherein f FOIF(s) is the laplace transfer function of the first-order inertial filter; t FOIF is the time constant of the first order inertial filter, and s is the Laplacian.
Preferably, the differentiator comprises:
Wherein f CD(s) is the laplace transfer function of the differentiator; t CD is the time constant of the differentiator and s is the Laplacian.
Preferably, the ratio controller includes:
fPCO(s)＝KPCO；
Wherein f PCO(s) is the laplace transfer function of the proportional controller; k PCO is the gain of the proportional controller and s is the Laplacian.
Preferably, the process-given processing signal is obtained according to the following formula:
Wherein f EFCSPGG(s) is a laplace transfer function given by a process of the boiler furnace pressure control system of the thermal power generating unit, f FOIF(s) is a laplace transfer function of the first-order inertial filter, T FOIF is a time constant of the first-order inertial filter, f CD(s) is a laplace transfer function of the differentiator, T CD is a time constant of the differentiator, f PCO(s) is a laplace transfer function of the proportional controller, K PCO is a gain of the proportional controller, and s is a laplace operator.
Preferably, the input end of the process-given signal is connected with the subtracted end of the subtracter and the input end of the first-order inertial filter, the output end of the first-order inertial filter is connected with the input end of the differentiator, the output end of the differentiator is connected with the input end of the proportional controller, the output end of the proportional controller is connected with the subtracted end of the subtracter, and the output end of the subtracter is connected with the output end of the process-given processing signal.
Correspondingly, the embodiment of the invention also provides a terminal device, which comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor realizes a given signal processing method of a process of the boiler furnace pressure control system of the thermal power generating unit when executing the computer program.
Correspondingly, the embodiment of the invention also provides a computer readable storage medium, which comprises a stored computer program, wherein when the computer program runs, equipment where the computer readable storage medium is located is controlled to execute the given signal processing method of the process of the furnace pressure control system of the boiler of the thermal power generating unit.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
The embodiment of the invention provides a process given signal processing method and a system of a boiler furnace pressure control system of a thermal power generating unit, wherein the process given signal processing method comprises the following steps: acquiring a process given signal of a boiler furnace pressure control system of a thermal power generating unit, and inputting the process given signal into a first-order inertial filter to obtain a first-order inertial filter signal; the first-order inertial filter signal is connected to a differentiator to obtain a differentiated signal; the differential signal is connected to a proportional controller to obtain a proportional control signal; and accessing the given process signal to the subtracter and the proportional control signal to obtain the given process signal of the boiler furnace pressure control system of the thermal power unit. By introducing a first-order inertial filter, a differentiator and a proportional controller into a boiler furnace pressure control system of a thermal power generating unit, the overshoot can be reduced by processing a given signal of a process, and the problem of large overshoot in a high-order process is avoided; in addition, the process given signal is further corrected through the subtracter, and the proportion control signal is subtracted from the process given signal, so that the feedback control performance of the boiler furnace pressure control system of the thermal power unit can be effectively improved, and the control efficiency of the system can be improved.
Drawings
Fig. 1: the flow diagram of one embodiment of a signal processing method is given to the process of the hearth pressure control system of the thermal power generating unit boiler.
Fig. 2: the principle schematic diagram of one embodiment of a signal processing system is given for the process of the boiler furnace pressure control system of the thermal power generating unit.
Fig. 3: the schematic diagram of one embodiment of the boiler furnace pressure control system of the thermal power generating unit is provided by the invention.
Fig. 4: the simulation result schematic diagram of one embodiment of a process given processing method without adopting an engineering fastest control system is provided by the invention.
Fig. 5: the simulation result schematic diagram of an embodiment of the given processing method of the process adopting the engineering fastest control system is provided by the invention.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be understood that the step numbers used herein are for convenience of description only and are not limiting as to the order in which the steps are performed.
It is to be understood that the terminology used in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Any process or method descriptions herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
The logic and/or steps described herein, for example, may be considered a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
Example 1
Referring to fig. 1, fig. 1 is a process set signal processing method of a boiler furnace pressure control system of a thermal power generating unit according to an embodiment of the present invention, including steps S1 to S4; wherein,
Step S1, a process given signal of a boiler furnace pressure control system of the thermal power generating unit is obtained, and the process given signal is input into a first-order inertial filter to obtain a first-order inertial filter signal.
And S2, connecting the first-order inertial filter signal into a differentiator to obtain a differentiated signal.
And step S3, the differential signal is connected to a proportional controller to obtain a proportional control signal.
Step S4, the given signal of the process is connected to the subtracter' S subtracter, and obtaining a process given processing signal of the boiler furnace pressure control system of the thermal power generating unit.
In this embodiment, as shown in fig. 2, the input end of the process-given signal is connected to the subtracted end of the subtracter and the input end of the first-order inertial filter, the output end of the first-order inertial filter is connected to the input end of the differentiator, the output end of the differentiator is connected to the input end of the proportional controller, the output end of the proportional controller is connected to the subtracted end of the subtracter, and the output end of the subtracter is connected to the output end of the process-given processing signal.
Further, the first-order inertial filter includes:
where s is the Laplace operator and f FOIF(s) is the Laplace transfer function of the first order inertial filter; t FOIF is the time constant of the first order inertial filter, in s.
The first order inertial filter signal is then coupled to a differentiator which outputs a differentiated signal, preferably a conventional differentiator (Common differentiator, CD) which corresponds to the conventional differentiated signal, which can be described as:
Where s is the Laplace operator and f CD(s) is the Laplace transfer function of the common differentiator; t CD is the time constant of a conventional differentiator in s.
The differential signal is connected to a proportional controller, the proportional controller outputs a proportional control signal, and the proportional controller can be expressed as:
fPCO(s)＝KPCO；
Wherein f PCO(s) is the laplace transfer function of the proportional controller; k PCO is the gain of the proportional controller, and the unit is dimensionless;
and connecting the process given signal to a subtracter, and outputting a process given processing signal of the boiler furnace pressure control system of the thermal power unit by the subtracter.
As a preferred embodiment, the process-given processing signal of the furnace pressure control system of the thermal power generating unit boiler can be generated according to the following formula:
Wherein f EFCSPGG(s) is a Laplacian transfer function given and generated by the engineering fastest control system process; f FOIF(s) is the Laplacian transfer function of the first order inertial filter, T FOIF is the time constant of the first order inertial filter, and the unit is s; f CD(s) is the Laplace transfer function of the conventional differentiator, T CD is the time constant of the conventional differentiator in s; f PCO(s) is the Laplace transfer function of the proportional controller, K PCO is the gain of the proportional controller, and the unit is dimensionless.
Preferably, the boiler furnace pressure control system of the thermal power generating unit can adopt an engineering fastest control system, and the specific principle of the engineering fastest control system is shown in fig. 3. The given generation of the boiler furnace pressure control system or the engineering fastest control system of the thermal power generating unit is EFCSPGG, a given process signal output by inputting the given process signal into the EFCSPGG, EFCSPGG is connected to an acceleration type engineering fastest proportional-integral controller AEFPI, then the given process signal is processed by a process P to generate a process output, and meanwhile, a negative feedback signal is also generated to act on an acceleration type engineering fastest proportional-integral controller AEFPI.
The accelerating engineering fastest speed proportional-integral controller AEFPI specifically comprises:
fAEFPI(s)＝KAEFPI[1+fAEFI(s)]；
TAEFI＝TAEFTF；
Where s is the Laplacian, f AEFPI(s) is the transfer function of AEFPI, K AEFPI is the cascade proportional control gain, f AEFI(s) is the transfer function of the Acceleration ENGINEERING FASTEST integrator, AEFI, and f AEFTF(s) is the transfer function of the Acceleration ENGINEERING FASTEST TRACKING FILTER, AEFTF; t AEFI is the time constant of AEFI in s; t AEFTF is the time constant of AEFTF in s; quantitatively T AEFI＝TAEFTF.
In one embodiment, the process treatment P is specifically:
Where f P(s) is the transfer function of the process.
When the open loop system phase is equal to minus 135 degrees, the open loop system gain is equal to 0.5, searching AEFPI for optimal parameters, and obtaining AEFPI parameters as follows: t AEFI＝453s,KAEFPI = 1.805;
Before a process of an engineering fastest control system of this embodiment is given a processing method, the process is given as a unit step, and the simulation result is shown in fig. 4. The process overshoot was 6.8% and the conditioning time was 700s. Wherein the adjustment time refers to the time for the process to enter less than 5% deviation.
After the process using the engineering fastest control system gives a processing method, T FOIF＝150s,TCD＝150s,KPCO =0.365, and the simulation result is shown in fig. 5. The process overshoot was seen to be reduced to 0.29% with a conditioning time of 451s. The overshoot is effectively inhibited, and the adjustment time is obviously shortened.
Correspondingly, referring to fig. 2, the embodiment of the invention also provides a process setting signal processing system of the boiler furnace pressure control system of the thermal power generating unit, which comprises a first-order inertial filter, a differentiator, a proportional controller and a subtracter; wherein,
The first-order inertia filter is used for obtaining a process given signal of a boiler furnace pressure control system of the thermal power generating unit and obtaining a first-order inertia filter signal; and the first-order inertial filter signal is connected to a differentiator;
The differentiator is used for obtaining a differentiated signal based on the first-order inertial filter signal; and the differential signal is connected to a proportional controller;
The proportional controller is used for obtaining a proportional control signal based on the differential signal; the proportional control signal is connected to the number reducing end of the subtracter;
and the subtracter obtains a process given processing signal of the thermal power unit boiler furnace pressure control system based on the process given signal obtained by the subtracter and the proportion control signal.
Preferably, the first-order inertial filter includes:
wherein f FOIF(s) is the laplace transfer function of the first-order inertial filter; t FOIF is the time constant of the first order inertial filter, and s is the Laplacian.
Preferably, the differentiator comprises:
Wherein f CD(s) is the laplace transfer function of the differentiator; t CD is the time constant of the differentiator and s is the Laplacian.
Preferably, the ratio controller includes:
fPCO(s)＝KPCO；
Wherein f PCO(s) is the laplace transfer function of the proportional controller; k PCO is the gain of the proportional controller and s is the Laplacian.
Preferably, the process-given processing signal is obtained according to the following formula:
Wherein f EFCSPGG(s) is a laplace transfer function given by a process of the boiler furnace pressure control system of the thermal power generating unit, f FOIF(s) is a laplace transfer function of the first-order inertial filter, T FOIF is a time constant of the first-order inertial filter, f CD(s) is a laplace transfer function of the differentiator, T CD is a time constant of the differentiator, f PCO(s) is a laplace transfer function of the proportional controller, K PCO is a gain of the proportional controller, and s is a laplace operator.
Preferably, the input end of the process-given signal is connected with the subtracted end of the subtracter and the input end of the first-order inertial filter, the output end of the first-order inertial filter is connected with the input end of the differentiator, the output end of the differentiator is connected with the input end of the proportional controller, the output end of the proportional controller is connected with the subtracted end of the subtracter, and the output end of the subtracter is connected with the output end of the process-given processing signal.
Correspondingly, the embodiment of the invention also provides a terminal device, which comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor realizes a given signal processing method of a process of the boiler furnace pressure control system of the thermal power generating unit when executing the computer program.
The Processor may be a central processing unit (Central Processing Unit, CPU), other general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, which is a control center of the terminal, connecting various parts of the entire terminal using various interfaces and lines.
The memory may be used to store the computer program, and the processor may implement various functions of the terminal by running or executing the computer program stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart memory card (SMART MEDIA CARD, SMC), secure Digital (SD) card, flash memory card (FLASH CARD), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
Correspondingly, the embodiment of the invention also provides a computer readable storage medium, which comprises a stored computer program, wherein when the computer program runs, equipment where the computer readable storage medium is located is controlled to execute the given signal processing method of the process of the furnace pressure control system of the boiler of the thermal power generating unit.
The module integrated by the signal processing system in the process of the boiler furnace pressure control system of the thermal power generating unit can be stored in a computer readable storage medium if the module is realized in the form of a software functional unit and sold or used as an independent product. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
The embodiment of the invention provides a process given signal processing method and a system of a boiler furnace pressure control system of a thermal power generating unit, wherein the process given signal processing method comprises the following steps: acquiring a process given signal of a boiler furnace pressure control system of a thermal power generating unit, and inputting the process given signal into a first-order inertial filter to obtain a first-order inertial filter signal; the first-order inertial filter signal is connected to a differentiator to obtain a differentiated signal; the differential signal is connected to a proportional controller to obtain a proportional control signal; and accessing the given process signal to the subtracter and the proportional control signal to obtain the given process signal of the boiler furnace pressure control system of the thermal power unit. By introducing a first-order inertial filter, a differentiator and a proportional controller into a boiler furnace pressure control system of a thermal power generating unit, the overshoot can be reduced by processing a given signal of a process, and the problem of large overshoot in a high-order process is avoided; in addition, the process given signal is further corrected through the subtracter, and the proportion control signal is subtracted from the process given signal, so that the feedback control performance of the boiler furnace pressure control system of the thermal power unit can be effectively improved, and the control efficiency of the system can be improved.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.

Claims (10)

1. A process-given signal processing method of a boiler furnace pressure control system of a thermal power generating unit, comprising the steps of:
Acquiring a process given signal of a boiler furnace pressure control system of a thermal power generating unit, and inputting the process given signal into a first-order inertial filter to obtain a first-order inertial filter signal;
the first-order inertial filter signal is connected to a differentiator to obtain a differentiated signal;
the differential signal is connected to a proportional controller to obtain a proportional control signal;
And accessing the given process signal to the subtracter and the proportional control signal to obtain the given process signal of the boiler furnace pressure control system of the thermal power unit.
2. A process-given signal processing method of a furnace pressure control system of a thermal power generating unit boiler according to claim 1, wherein the first-order inertial filter comprises:
wherein f FOIF(s) is the laplace transfer function of the first-order inertial filter; t FOIF is the time constant of the first order inertial filter, and s is the Laplacian.
3. A process-given signal processing method of a furnace pressure control system of a thermal power generating unit boiler according to claim 1, wherein said differentiator comprises:
Wherein f CD(s) is the laplace transfer function of the differentiator; t CD is the time constant of the differentiator and s is the Laplacian.
4. A process-given signal processing method of a furnace pressure control system of a thermal power generating unit boiler according to claim 1, wherein the proportional controller comprises:
fPCO(s)＝KPCO；
Wherein f PCO(s) is the laplace transfer function of the proportional controller; k PCO is the gain of the proportional controller and s is the Laplacian.
5. A process-given signal processing method of a furnace pressure control system of a boiler of a thermal power generating unit according to claim 1, wherein the process-given signal is obtained according to the following formula:
Wherein f EFCSPGG(s) is a laplace transfer function given by a process of the boiler furnace pressure control system of the thermal power generating unit, f FOIF(s) is a laplace transfer function of the first-order inertial filter, T FOIF is a time constant of the first-order inertial filter, f CD(s) is a laplace transfer function of the differentiator, T CD is a time constant of the differentiator, f PCO(s) is a laplace transfer function of the proportional controller, K PCO is a gain of the proportional controller, and s is a laplace operator.
6. A process-given signal processing method of a boiler furnace pressure control system of a thermal power generating unit according to claim 1, wherein an input end of the process-given signal is connected to a subtracted end of the subtracter and an input end of the first-order inertial filter, an output end of the first-order inertial filter is connected to an input end of the differentiator, an output end of the differentiator is connected to an input end of the proportional controller, an output end of the proportional controller is connected to a subtracted end of the subtracter, and an output end of the subtracter is connected to an output end of the process-given processed signal.
7. The process setting signal processing system of the boiler furnace pressure control system of the thermal power generating unit is characterized by comprising a first-order inertial filter, a differentiator, a proportional controller and a subtracter; wherein,
The first-order inertia filter is used for obtaining a process given signal of a boiler furnace pressure control system of the thermal power generating unit and obtaining a first-order inertia filter signal; and the first-order inertial filter signal is connected to a differentiator;
The differentiator is used for obtaining a differentiated signal based on the first-order inertial filter signal; and the differential signal is connected to a proportional controller;
The proportional controller is used for obtaining a proportional control signal based on the differential signal; the proportional control signal is connected to the number reducing end of the subtracter;
and the subtracter obtains a process given processing signal of the thermal power unit boiler furnace pressure control system based on the process given signal obtained by the subtracter and the proportion control signal.
8. A process-given signal processing system of a boiler furnace pressure control system of a thermal power generating unit according to claim 7, wherein an input end of the process-given signal is connected to a subtracted end of the subtracter and an input end of the first-order inertial filter, an output end of the first-order inertial filter is connected to an input end of the differentiator, an output end of the differentiator is connected to an input end of the proportional controller, an output end of the proportional controller is connected to a subtracted end of the subtracter, and an output end of the subtracter is connected to an output end of the process-given processed signal.
9. A terminal device comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing a process-given signal processing method of the thermal power generating unit boiler furnace pressure control system according to any one of claims 1 to 6 when the computer program is executed.
10. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored computer program, wherein the computer program, when run, controls a device in which the computer readable storage medium is located to perform a process-given signal processing method of the furnace pressure control system of a thermal power generating unit boiler according to any one of claims 1 to 6.
CN202410167595.3A 2024-02-06 2024-02-06 Processing method of given signal in furnace pressure control system of thermal power plant boiler Pending CN118034026A (en)

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