CN215514075U - Ship electric propulsion system capable of automatically selecting cruise mode - Google Patents
Ship electric propulsion system capable of automatically selecting cruise mode Download PDFInfo
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- CN215514075U CN215514075U CN202120782847.5U CN202120782847U CN215514075U CN 215514075 U CN215514075 U CN 215514075U CN 202120782847 U CN202120782847 U CN 202120782847U CN 215514075 U CN215514075 U CN 215514075U
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Abstract
The utility model discloses a ship electric propulsion system capable of automatically selecting a cruise mode, which has the technical scheme that: the energy management device is electrically connected with three groups of generator sets respectively, the three groups of generator sets are electrically connected with a main cable through AC/DC, the three groups of AC/DC are also electrically connected with the energy management device, the main cable is electrically connected with four groups of DC/AC respectively, the other two groups of DC/AC are electrically connected with a low-speed permanent magnet propulsion motor with double windings connected in series, the two groups of DC/AC on the low-speed permanent magnet propulsion motor with double windings connected in series are also electrically connected with a propulsion control device, the propulsion control device is electrically connected with the energy management device, and the energy management device is electrically connected with a constant-speed cruise button 1, a constant-speed cruise button 2 and a constant-speed cruise button 3; the device is used for making the ship operation simpler and easier, and is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to the field of ship power, in particular to a ship electric propulsion system capable of automatically selecting a cruise mode.
Background
For small and medium sized ships, the conventional ship propulsion methods include: the first method is as follows: a medium-speed diesel engine, a reduction gear box, a tail shaft system and a propeller; the second method comprises the following steps: a low-speed diesel engine, a tail shaft system and a propeller; the third method comprises the following steps: a propulsion motor, a reduction gear box, a tail shaft system, a propeller and the like; the propulsion modes are that the speed of the ship is adjusted by manually controlling the rotating speed of the main engine or the input power of the propulsion motor to control the rotating speed of the propeller; for the first mode and the second mode, the optimal navigational speed point of the ship is close to the power point which is 85% of the maximum power of the main engine; for mode three, the optimal cruise point for the vessel is designed at the design cruise point for the vessel. The selection and control of the speed of the ship are completely completed manually, and each ship only has one optimal speed point.
Referring to the prior Chinese patent with the publication number of CN103387043B, the electric propulsion system of the ship is disclosed, namely, a driving operation control module of the system provides a speed regulation control device control signal of a speed regulation control module through a speed setting device and a driving platform controller through a field bus, and control information is displayed on a display unit; the cabin operation control module provides a speed regulation control device control signal of the speed regulation control module through a field bus by a cabin local controller, and control information is displayed in an indicating unit; the speed regulation control module controls the magnetic coupler through a speed regulation actuator by a speed regulation control device; the power propulsion module is composed of a steering controller, a motor, a propulsion device and a speed sensor, wherein the motor is connected with the propulsion device through a magnetic coupler, and the speed sensor detects the rotating speed and feeds the rotating speed back to the speed regulation control device.
The ship electric propulsion system realizes the adjustment of load rotating speed and torque through the flexible connection of the motor and the propulsion device, avoids vibration transmission and noise superposition, prolongs the service life of components, reduces the maintenance cost and ensures the stable operation of the system. However, the above ship electric propulsion system still has some disadvantages, such as: the automatic cruise control system cannot realize automatic constant-speed cruise, cannot realize control precision of oil consumption of the motor set, reduces the oil consumption, cannot work at the optimal oil consumption point under the condition of different speeds, and thus achieves the purposes of reducing the oil consumption and reducing emission.
Disclosure of Invention
In view of the problems mentioned in the background, it is an object of the present invention to provide a marine vessel electric propulsion system with automatic selection of cruise mode to solve the problems mentioned in the background.
The technical purpose of the utility model is realized by the following technical scheme:
the ship electric propulsion system capable of automatically selecting the cruise mode comprises an energy management device, wherein three groups of generator sets are respectively and electrically connected to the energy management device, AC/DC is respectively and electrically connected to the three groups of generator sets, the three groups of AC/DC are also electrically connected to the energy management device, main cables are respectively and electrically connected to the three groups of AC/DC, four groups of DC/AC are respectively and electrically connected to the main cables, two groups of DC/AC are electrically connected to a daily load, the other two groups of DC/AC are electrically connected to a low-speed permanent magnet propulsion motor with two windings connected in series, two groups of DC/AC on the low-speed permanent magnet propulsion motor with two windings connected in series are also electrically connected to a propulsion control device, the propulsion control device is electrically connected to the energy management device, and a constant-speed cruise button 1, a constant-speed cruise button 1 and a constant-speed cruise button are electrically connected to the energy management device, A constant speed cruise button 2 and a constant speed cruise button 3.
By adopting the technical scheme, when in use, three asynchronous generator sets are designed, so that three working modes of the on-line work with different numbers of the generator sets are provided, for example, one generator is on the line, two generators are on the line and three generators are on the line; when a ship needs to sail at a low speed, only one generator is needed to work on the network, the generator is set to work at the optimal oil consumption point, the working condition is set to be a low-speed economical cruise mode, and one-key control keys are adopted for selecting and controlling; when the two generator sets work on the network, the computer selects the optimal working condition point of the two generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set as the intermediate-speed economical cruising speed of the ship at the moment, so that one-key selection is realized; when the three generator sets work in a network, the computer selects the optimal working condition point of the three generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set to be the high-speed economical cruise mode of the ship at the moment, so that one-key selection is realized; therefore, the oil consumption control precision of the generator set can be improved, the inaccuracy of oil consumption control by manual operation is avoided, the oil consumption is reduced, and the generator set can work at the optimal oil consumption point under the condition of different navigational speeds according to different navigational speed requirements during actual operation of ships, so that the aims of reducing the oil consumption and reducing the emission are fulfilled.
Preferably, the three sets of AC/DC are electrically connected with resistors respectively between the three sets of AC/DC and the main cable.
By adopting the technical scheme, the setting of the resistor can realize the control and regulation of the output voltage of the AC/DC.
Preferably, the middle of the main cable is electrically connected with a switch and a resistor, and two sides of the switch and the resistor are respectively and electrically connected with two groups of the AC/DC and one group of the AC/DC.
By adopting the technical scheme, the setting of the switch and the resistor can realize the control, matching and combined operation of the three groups of generator sets.
Preferably, the four sets of DC/AC are also electrically connected with resistors respectively between the connections with the main cable.
By adopting the technical scheme, the setting of the resistor can realize the control and regulation of the input voltage of the DC/AC, and the DC/AC is prevented from being damaged by voltage impact.
Preferably, four sets of the DC/AC are respectively located on both sides of the switch and the resistor of the main cable.
By adopting the technical scheme, the DC/AC on the two sides of the switch and the resistor can realize the control and regulation coordination of the navigational speed.
Preferably, the output shaft end of the low-speed permanent magnet propulsion motor with the double windings connected in series is fixedly connected with a propeller.
By adopting the technical scheme, the propeller is set so that the low-speed permanent magnet propulsion motor with the double windings connected in series can realize propulsion, and further the ship speed operation of the ship is controlled.
Preferably, the propulsion control device comprises a rotation speed detection device of the low-speed permanent magnet propulsion motor with the double windings connected in series, and the propulsion control device is in communication connection with the energy management device through an RS485 communication interface.
By adopting the technical scheme, the rotating speed detection device can detect the rotating speed of the low-speed permanent magnet propulsion motor with the double windings connected in series, determine the power output of the low-speed permanent magnet propulsion motor with the double windings connected in series, and adopt the RS485 communication interface to enable the communication information to be stable.
Preferably, the constant-speed cruise button 1 is in communication connection with one group of generator sets through the energy management device, the constant-speed cruise button 2 is in communication connection with two groups of generator sets through the energy management device, and the constant-speed cruise button 3 is in communication connection with three groups of generator sets through the energy management device.
Through adopting above-mentioned technical scheme, the setting of constant speed cruise button 1, constant speed cruise button 2 and constant speed cruise button 3 can realize controlling the regulation to the cooperation output of three groups of generating set, accomplishes the output ratio of energy.
In summary, the utility model mainly has the following beneficial effects:
the ship is provided with three asynchronous generator sets, so that the ship has three working modes of working in a network with different unit numbers, such as one generator in the network, two generators in the network and three generators in the network; when a ship needs to sail at a low speed, only one generator is needed to work on the network, the generator is set to work at the optimal oil consumption point, the working condition is set to be a low-speed economical cruise mode, and one-key control keys are adopted for selecting and controlling; when the two generator sets work on the network, the computer selects the optimal working condition point of the two generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set as the intermediate-speed economical cruising speed of the ship at the moment, so that one-key selection is realized; when the three generator sets work in a network, the computer selects the optimal working condition point of the three generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set to be the high-speed economical cruise mode of the ship at the moment, so that one-key selection is realized; therefore, the oil consumption control precision of the generator set can be improved, the inaccuracy of oil consumption control by manual operation is avoided, the oil consumption is reduced, and the generator set can work at the optimal oil consumption point under the condition of different navigational speeds according to different navigational speed requirements during actual operation of ships, so that the aims of reducing the oil consumption and reducing the emission are fulfilled.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, a ship electric propulsion system capable of automatically selecting a cruise mode includes an energy management device, three sets of generator sets are respectively and electrically connected to the energy management device, three sets of generator sets are respectively and electrically connected to AC/DC, three sets of AC/DC are also electrically connected to the energy management device, three sets of AC/DC are electrically connected to a main cable, four sets of DC/AC are respectively and electrically connected to the main cable, two sets of DC/AC are electrically connected to a domestic load, the remaining two sets of DC/AC are electrically connected to a low-speed permanent magnet propulsion motor with two windings connected in series, two sets of DC/AC on the low-speed permanent magnet propulsion motor with two windings connected in series are also electrically connected to a propulsion control device, and the propulsion control device is electrically connected to the energy management device, the energy management device is electrically connected with a constant-speed cruise button 1, a constant-speed cruise button 2 and a constant-speed cruise button 3.
By adopting the technical scheme, when in use, three asynchronous generator sets are designed, so that three working modes of the on-line work with different numbers of the generator sets are provided, for example, one generator is on the line, two generators are on the line and three generators are on the line; when a ship needs to sail at a low speed, only one generator is needed to work on the network, the generator is set to work at the optimal oil consumption point, the working condition is set to be a low-speed economical cruise mode, and one-key control keys are adopted for selecting and controlling; when the two generator sets work on the network, the computer selects the optimal working condition point of the two generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set as the intermediate-speed economical cruising speed of the ship at the moment, so that one-key selection is realized; when the three generator sets work in a network, the computer selects the optimal working condition point of the three generator sets to work under the control of computer software according to the inherent universal curve of the asynchronous generator set, and the ship speed is set to be the high-speed economical cruise mode of the ship at the moment, so that one-key selection is realized; therefore, the oil consumption control precision of the generator set can be improved, the inaccuracy of oil consumption control by manual operation is avoided, the oil consumption is reduced, and the generator set can work at the optimal oil consumption point under the condition of different navigational speeds according to different navigational speed requirements during actual operation of ships, so that the aims of reducing the oil consumption and reducing the emission are fulfilled.
In this embodiment, preferably, resistors are respectively electrically connected between the three sets of AC/DC and the main cable. The effect is that the setting of the resistance can realize the control and adjustment of the output voltage of the AC/DC.
In this embodiment, preferably, a switch and a resistor are electrically connected to the middle of the main cable, and two sets of the AC/DC and one set of the AC/DC are respectively and electrically connected to two sides of the switch and the resistor. The effect is that the setting of switch and resistance can realize the control matching combination operation of three groups of generating sets.
In this embodiment, preferably, resistors are also electrically connected between the four sets of DC/AC and the main cable. The effect is that the setting of the resistor can realize the control and adjustment of the input voltage of the DC/AC, and the DC/AC is prevented from being damaged by voltage impact.
In this embodiment, preferably, four sets of the DC/AC are respectively located on two sides of the switch and the resistor of the main cable. The effect is that the DC/AC on the two sides of the switch and the resistor can realize the control and adjustment coordination of the navigational speed.
In this embodiment, preferably, a propeller is fixedly connected to an output shaft end of the low-speed permanent magnet propulsion motor with the two windings connected in series. The effect is that the propeller can be set to enable the low-speed permanent magnet propulsion motor with the double windings connected in series to realize pushing, and further control the navigational speed of the ship to run.
In this embodiment, preferably, the propulsion control device includes a rotation speed detection device of the low-speed permanent magnet propulsion motor with the two windings connected in series, and the propulsion control device is in communication connection with the energy management device through an RS485 communication interface. The effect is that the rotating speed detection device can detect the rotating speed of the low-speed permanent magnet propulsion motor with the double windings connected in series, determine the power output of the low-speed permanent magnet propulsion motor with the double windings connected in series, and adopt the RS485 communication interface to enable the communication information to be stable.
In this embodiment, it is preferable that the constant-speed cruise button 1 is connected with a set of the generator set electrically connected through the energy management device, the constant-speed cruise button 2 is connected with two sets of the generator set electrically connected through the energy management device, and the constant-speed cruise button 3 is connected with three sets of the generator set electrically connected through the energy management device. The effect is that the setting of the constant-speed cruise button 1, the constant-speed cruise button 2 and the constant-speed cruise button 3 can realize the control and regulation of the matching output of the three groups of generator sets, and the output proportioning of energy is completed.
The use principle and the advantages are as follows:
when the device is used, the constant-speed cruise button 1 drives the energy management device to control one of the three generator sets to generate electricity, then the voltage is converted through AC/DC, then the voltage is transmitted through a main cable, the voltage is converted again through DC/AC at one end of a switch and a resistor, then the low-speed permanent magnet propulsion motor with the daily load and the double windings connected in series is powered through DC/AC, power output is detected through the propulsion control device, then the energy management device is driven through the constant-speed cruise button 2 to control two generator sets of the three generator sets to generate electricity, then the voltage is converted through AC/DC, then the voltage is transmitted through the main cable, the voltage is converted again through DC/AC at one end of the switch and the resistor, and then the daily load and the low-speed permanent magnet propulsion motor with the double windings connected in series are supplied with electricity through DC/AC The electric operation, and detect power take off through advancing controlling means, through constant speed cruise button 3 drive energy management device control three groups generating set electricity generation, then change voltage through AC/DC, then carry out the transmission voltage through the main cable, close the switch, and reconvert voltage through DC/AC, then realize through DC/AC that the power supply is operated to the low-speed permanent magnetism propulsion motor of daily load and duplex winding series connection, and detect power take off through advancing controlling means.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A marine vessel electric propulsion system with automatic cruise mode selection, comprising an energy management device, characterized in that: the energy management device is respectively and electrically connected with three groups of generating sets, the three groups of generating sets are respectively and electrically connected with AC/DC, the three groups of AC/DC are also electrically connected with the energy management device, the three groups of AC/DC are electrically connected with a main cable, the main cable is respectively and electrically connected with four groups of DC/ACs, the two groups of DC/ACs are electrically connected with daily loads, the other two groups of DC/AC are electrically connected with a low-speed permanent magnet propulsion motor with double windings connected in series, the two groups of DC/AC on the low-speed permanent magnet propulsion motor with the double windings connected in series are also electrically connected with a propulsion control device, the propulsion control device is electrically connected with the energy management device, and the energy management device is electrically connected with a constant-speed cruise button 1, a constant-speed cruise button 2 and a constant-speed cruise button 3.
2. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: and the three groups of AC/DC are respectively and electrically connected with resistors between the three groups of AC/DC and the main cable.
3. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: the middle of the main cable is electrically connected with a switch and a resistor, and two sides of the switch and the resistor are respectively and electrically connected with two groups of AC/DC and one group of AC/DC.
4. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: and the four groups of DC/AC are also respectively and electrically connected with resistors between the connection of the DC/AC and the main cable.
5. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 3, characterized in that: four sets of the DC/AC are respectively positioned on two sides of the switch and the resistor of the main cable.
6. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: and the output shaft end of the low-speed permanent magnet propulsion motor with the double windings connected in series is fixedly connected with a propeller.
7. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: the propulsion control device comprises a rotating speed detection device of the low-speed permanent magnet propulsion motor with the double windings connected in series, and the propulsion control device is in communication connection with the energy management device through an RS485 communication interface.
8. A marine vessel electric propulsion system with an automatic cruise mode selection as claimed in claim 1, characterized in that: the constant-speed cruise control system is characterized in that the constant-speed cruise button 1 is in communication connection with one group of generating sets through the energy management device, the constant-speed cruise button 2 is in communication connection with two groups of generating sets through the energy management device, and the constant-speed cruise button 3 is in communication connection with three groups of generating sets through the energy management device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120782847.5U CN215514075U (en) | 2021-04-16 | 2021-04-16 | Ship electric propulsion system capable of automatically selecting cruise mode |
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| CN202120782847.5U CN215514075U (en) | 2021-04-16 | 2021-04-16 | Ship electric propulsion system capable of automatically selecting cruise mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459336A (en) * | 2022-08-19 | 2022-12-09 | 中船澄西船舶修造有限公司 | Control method of electric propulsion ship power station based on adjustable speed diesel generator set |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115459336A (en) * | 2022-08-19 | 2022-12-09 | 中船澄西船舶修造有限公司 | Control method of electric propulsion ship power station based on adjustable speed diesel generator set |
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