Parallel operation management method and system based on controllers of different brands

Abstract

The invention discloses a parallel operation management method and system based on controllers of different brands, and the system comprises an analog-to-digital symmetrical line management system and a digital symmetrical line management system. The analog-to-digital symmetrical line management system and the digital symmetrical line management system both comprise parallel controllers of different brands, load sharing modules, analog load sharing lines and digital load sharing lines, and the difference between the analog-to-digital symmetrical line management system and the digital symmetrical line management system is the difference of load sharing interfaces of the parallel controllers. According to the parallel operation management method and system based on the different brand controllers, the problems that communication direct connection cannot be achieved between the different brand controllers, data interaction among the units cannot be achieved, and consequently the operation power of the units cannot be equally divided after parallel operation are solved, and the use convenience is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of parallel operation management of internal combustion generator sets, and in particular to a parallel operation management method and system based on controllers of different brands. Background Art

[0002] At present, the technology of using controllers of the same brand for parallel management of internal combustion generator sets is mature, reliable, simple and convenient. It only requires directly connecting the CAN communication interfaces of controllers of the same brand in sequence to achieve barrier-free data interaction between controllers and ultimately complete the parallel management of multiple internal combustion generator sets.

[0003] However, generally, the control systems of internal combustion generator sets of different brands almost all use controllers of different brands, or as the start-up time of the project is different, even internal combustion generator sets of the same brand may use controllers of different brands. Controllers of different brands cannot communicate directly with each other, and data exchange cannot be achieved between multiple internal combustion generator sets, resulting in the inability to complete power sharing after the internal combustion generator sets using controllers of different brands are connected in parallel. Therefore, it is very difficult to achieve parallel management between units of different brands or between units of the same brand using controllers of different brands. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a parallel management method and system based on controllers of different brands, which can solve the problem that controllers of different brands cannot achieve direct communication, data between units cannot be exchanged, and the operating power of each unit cannot be evenly distributed after parallel connection, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a parallel management system based on controllers of different brands, including an analog-to-digital symmetrical line management system and a digital symmetrical line management system. The analog-to-digital symmetrical line management system and the digital symmetrical line management system both include parallel controllers of different brands, load sharing modules, analog load sharing lines, and digital load sharing lines. The difference between the two lies in the difference in the load sharing interfaces of the parallel controllers.

[0006] As a preferred technical solution of the present invention, the analog-to-digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line, uses the analog load sharing line on one side, and uses the digital load sharing line on the opposite side for real-time data interaction, that is, the analog load sharing line is used between the load sharing modules of each internal combustion generator set, the analog load sharing line is used between the load sharing module and the Aa parallel controller, and the digital load sharing line is used between the load sharing module and the Bb parallel controller for real-time data interaction.

[0007] As a preferred technical solution of the present invention, the digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line, uses the digital load sharing line on one side, and also uses the digital load sharing line on the opposite side for real-time data exchange, that is, the load sharing modules of each internal combustion generator set use analog load sharing lines, the load sharing modules and the Aa parallel controller use digital load sharing lines, and the load sharing modules and the Bb parallel controller use digital load sharing lines for real-time data exchange.

[0008] As a preferred technical solution of the present invention, the simulated load sharing line is a link between the load sharing module and the parallel controller that uses analog signals to perform load data interaction.

[0009] As a preferred technical solution of the present invention, the digital load sharing circuit is a link between the load sharing module and the parallel controller for load data exchange using CAN communication.

[0010] As a preferred technical solution of the present invention, the load sharing module has multiple sets of load data sharing interfaces, that is, one reactive and active analog load sharing interface and two CAN communication digital load sharing interfaces, and uses the multiple sets of load sharing links established by its interfaces to perform real-time interaction of unit load data, thereby realizing load distribution among multiple units.

[0011] As a preferred technical solution of the present invention, the Aa parallel controller is a controller of model a of brand A with a parallel function, and the Bb parallel controller is a controller of model b of brand B with a parallel function.

[0012] A parallel management method based on controllers of different brands: parallel controllers of different brands collect current and voltage signals of corresponding internal combustion generator sets in real time, calculate the real-time operating power of each corresponding internal combustion generator set, and exchange data of each unit through analog sharing links and digital sharing links established with load sharing modules as the center, so that each parallel controller can obtain the number of units currently in operation and the total operating power data, so that each parallel controller calculates the average power target value, and controls the power of the corresponding units to run to the average power target value.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present parallel management method and system based on controllers of different brands utilizes the multi-set load data sharing interface of the load sharing module to establish a load sharing link between parallel controllers of different brands, thereby realizing real-time interaction of load data between units, and ultimately achieving load balancing among multiple units, facilitating the unified scheduling and operation of each internal combustion generator set, and greatly improving the ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the architecture diagram of the analog-to-digital symmetrical line management system of the present invention;

[0015] Figure 2 This is the architecture diagram of the digital symmetric line management system of the present invention.

[0016] In the figure: 200 1# load sharing module, 201 2# load sharing module, 202 1#Aa parallel controller, 203 2#Aa parallel controller, 204 1#Bb parallel controller, 205 2#Bb parallel controller, 302 1# internal combustion generator set, 303 2# internal combustion generator set, 304 3# internal combustion generator set, 305 4# internal combustion generator set, 400 analog load sharing line between Aa parallel controllers, 401 analog load sharing line between load sharing modules, 402 analog load sharing line between Aa parallel controller and load sharing module, 500 digital load sharing line between 1# load sharing module and 1#Bb parallel controller, 501 digital load sharing line between 2# load sharing module and 2#Bb parallel controller, 502 digital load sharing line between 1# load sharing module and 1#Aa parallel controller, 503 Digital load sharing line between 2# load sharing module and 2#Aa parallel controller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-2 ,The present invention provides a technical solution: a parallel management system based on controllers of different brands, including an analog-to-digital symmetrical line management system and a digital symmetrical line management system;

[0019] Both the analog-to-digital symmetrical line management system and the digital symmetrical line management system include 1# load sharing module 200, 2# load sharing module 201, 1#Aa parallel controller 202, 2#Aa parallel controller 203, 1#Bb parallel controller 204, 2#Bb parallel controller 205, 1# internal combustion generator set 302, 2# internal combustion generator set 303, 3# internal combustion generator set 304, 4# internal combustion generator set 305. The difference between the two lies in the difference in the load sharing interface of the parallel controller.

[0020] In the analog-to-digital symmetrical line management system, the 1#Aa parallel controller 202 is connected to the 1# internal combustion generator set 302, the 2#Aa parallel controller 203 is connected to the 2# internal combustion generator set 303, the 1#Bb parallel controller 204 is connected to the 3# internal combustion generator set 304, the 2#Bb parallel controller 205 is connected to the 4# internal combustion generator set 305, the 1#Aa parallel controller 202 and the 2#Aa parallel controller 203 are connected through the simulated load sharing line 400 between the Aa parallel controllers, and the 2#Aa parallel controller 203 is connected to the 1# load sharing module 200 through The Aa parallel controller is connected to the simulated load sharing line 402 between the load sharing modules, the 1# load sharing module 200 is connected to the 2# load sharing module 201 through the simulated load sharing line 401 between the load sharing modules, the other end of the 1# load sharing module 200 is connected to the 1#Bb parallel controller 204 through the digital load sharing line 500 between the 1# load sharing module and the 1#Bb parallel controller, and the other end of the 2# load sharing module 201 is connected to the 2#Bb parallel controller 205 through the digital load sharing line 501 between the 2# load sharing module and the 2#Bb parallel controller;

[0021] In the digital symmetrical line management system, the 1#Aa parallel controller 202 is connected to the 1# internal combustion generator set 302, the 2#Aa parallel controller 203 is connected to the 2# internal combustion generator set 303, the 1#Bb parallel controller 204 is connected to the 3# internal combustion generator set 304, the 2#Bb parallel controller 205 is connected to the 4# internal combustion generator set 305, the 1#Aa parallel controller 202 is connected to the 1# load sharing module 200 through the digital load sharing line 502 between the 1# load sharing module and the 1#Aa parallel controller, and the 2#Aa parallel controller 203 is connected to the 2# load sharing module 20 1 is connected through the digital load sharing line between the 2# load sharing module and the 2#Aa parallel controller, the 1# load sharing module 200 is connected to the 2# load sharing module 201 through the analog load sharing line 401 between the load sharing modules, the other end of the 1# load sharing module 200 is connected to the 1#Bb parallel controller 204 through the digital load sharing line 500 between the 1# load sharing module and the 1#Bb parallel controller, and the other end of the 2# load sharing module 201 is connected to the 2#Bb parallel controller 205 through the digital load sharing line 501 between the 2# load sharing module and the 2#Bb parallel controller;

[0022] The analog-to-digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line. One side uses the analog load sharing line, and the opposite side uses the digital load sharing line for real-time data interaction. That is, the load sharing modules of each internal combustion generator set use the analog load sharing line, the load sharing module and the Aa parallel controller use the analog load sharing line, and the load sharing module and the Bb parallel controller use the digital load sharing line for real-time data interaction.

[0023] The digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line. One side uses the digital load sharing line, and the other side also uses the digital load sharing line for real-time data exchange. That is, the load sharing modules of each internal combustion generator set use the analog load sharing line, the load sharing module and the Aa parallel controller use the digital load sharing line, and the load sharing module and the Bb parallel controller use the digital load sharing line for real-time data exchange.

[0024] The simulated load sharing line is a link between the load sharing module and the parallel controller that uses analog signals to exchange load data.

[0025] The digital load sharing line is a link between the load sharing module and the parallel controller that uses CAN communication to exchange load data.

[0026] The load sharing module has multiple load data sharing interfaces, namely, one reactive and one active analog load sharing interface and two CAN communication digital load sharing interfaces. It uses the multiple load sharing links established by its interfaces to perform real-time interaction of unit load data and realize load distribution among multiple units.

[0027] The Aa parallel controller is a controller of brand A, model a, with parallel function, and the Bb parallel controller is a controller of brand B, model b, with parallel function.

[0028] The analog-to-digital symmetrical line management method is as follows: the 1#Aa parallel controller 202 calculates the real-time operating power of the 1# internal combustion generator set 302 by real-time acquisition of the current and voltage signals of the 1# internal combustion generator set 302;

[0029] The 2#Aa parallel controller 203 calculates the real-time operating power of the 2# internal combustion generator set 303 by collecting the current and voltage signals of the 2# internal combustion generator set 303 in real time;

[0030] The 1#Bb parallel controller 204 calculates the real-time operating power of the 3# internal combustion generator set 304 by real-time acquisition of the current and voltage signals of the 3# internal combustion generator set 304. At the same time, the 1#Bb parallel controller 204 exchanges the power signal in real time to the 1# load sharing module 200 through the digital load sharing line 500 between the 1# load sharing module 200 and the 1#Bb parallel controller;

[0031] The 2#Bb parallel controller 205 calculates the real-time operating power of the 4# internal combustion generator set 305 by real-time acquisition of the current and voltage signals of the 4# internal combustion generator set 305. At the same time, the 2#Bb parallel controller 205 exchanges the power signal in real time to the 2# load sharing module 201 through the digital load sharing line 501 between the 2# load sharing module and the 2#Bb parallel controller.

[0032] In summary, the real-time operating power of the 1# internal combustion generator set 302 has been learned from the 1#Aa parallel controller 202, the real-time operating power of the 2# internal combustion generator set 303 has been learned from the 2#Aa parallel controller 203, the real-time operating power of the 3# internal combustion generator set 304 has been learned from the 1# load sharing module 200, and the real-time operating power of the 4# internal combustion generator set 305 has been learned from the 2# load sharing module 201.

[0033] The 2#Aa parallel controller 203 exchanges the real-time operating power of the 2# internal combustion generator set 303 to the 1#Aa parallel controller 202 through the simulated load sharing line 400 between the Aa parallel controllers. The 1# load sharing module 200 exchanges the real-time operating power of the 3# internal combustion generator set 304 to the 1#Aa parallel controller 202 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module and the simulated load sharing line 400 between the Aa parallel controllers. The 2# load sharing module 201 exchanges the real-time operating power of the 3# internal combustion generator set 304 to the 1#Aa parallel controller 202 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module. The simulated load sharing line 401, the simulated load sharing line 402 between the Aa parallel controller and the load sharing module, and the simulated load sharing line 400 between the Aa parallel controllers interact the real-time operating power of the 4# internal combustion generator set 305 to the 1#Aa parallel controller 202. Therefore, the 1#Aa parallel controller 202 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. In this embodiment, it is known that the number of sets running online is four, and then the sum of the real-time operating powers of the four sets P is calculated. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 1#Aa parallel controller 202 sends speed regulation signal SPEED and voltage regulation signal AVR to 1# internal combustion generator set 302 according to Pm, and adjusts the operating power of 1# internal combustion generator set 302 to the single unit average power target value Pm within 5s.

[0034] The 1#Aa parallel controller 202 exchanges the real-time operating power of the 1# internal combustion generator set 302 to the 2#Aa parallel controller 203 through the simulated load sharing line 400 between the Aa parallel controllers. The 1# load sharing module 200 exchanges the real-time operating power of the 3# internal combustion generator set 304 to the 2#Aa parallel controller 203 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module. The 2# load sharing module 201 exchanges the real-time operating power of the 4# internal combustion generator set 305 to the 2#Aa parallel controller 203 through the simulated load sharing line 401 between the load sharing modules and the simulated load sharing line 402 between the Aa parallel controller and the load sharing module. Therefore, the 2#Aa parallel controller 203 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. In this embodiment, it is known that the number of units running online is four, and then the sum of the real-time operating powers of the four units P is calculated. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 2#Aa parallel controller 203 sends speed regulation signal SPEED and voltage regulation signal AVR to 2# internal combustion generator set 303 according to Pm, and adjusts the operating power of 2# internal combustion generator set 303 to the single unit average power target value Pm within 5s.

[0035] The 2# load sharing module 201 exchanges the real-time operating power of the 4# internal combustion generator set 305 to the 1# load sharing module 200 through the simulated load sharing line 401 between the load sharing modules, and the 2#Aa parallel controller 203 exchanges the real-time operating power of the 2# internal combustion generator set 303 to the 1# load sharing module 200 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module. The 1#Aa parallel controller 202 exchanges the real-time operating power of the 2# internal combustion generator set 303 to the 1# load sharing module 200 through the simulated load sharing line 400 between the Aa parallel controllers and the simulated load sharing line between the Aa parallel controller and the load sharing module. The load sharing line 402 exchanges the real-time operating power of the 1# internal combustion generator set 302 to the 1# load sharing module 200. Therefore, the 1# load sharing module 200 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. It is known that the number of units running online is four, and exchanges this information to the 1#Bb parallel controller 204 through the digital load sharing line 500 between the 1# load sharing module and the 1#Bb parallel controller. The 1#Bb parallel controller 204 calculates the sum of the real-time operating powers of the four units P according to the exchanged information. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 1#Bb parallel controller 204 sends speed regulation signal SPEED and voltage regulation signal AVR to 3# internal combustion generator set 304 according to Pm, and adjusts the operating power of 3# internal combustion generator set 304 to the single unit average power target value Pm within 5s.

[0036] The 1# load sharing module 200 exchanges the real-time operating power of the 3# internal combustion generator set 304 to the 2# load sharing module 201 through the simulated load sharing line 401 between the load sharing modules. The 2#Aa parallel controller 203 exchanges the real-time operating power of the 2# internal combustion generator set 303 to the 2# load sharing module 201 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module and the simulated load sharing line 401 between the load sharing modules. The 1#Aa parallel controller 202 exchanges the real-time operating power of the 2# internal combustion generator set 303 to the 2# load sharing module 201 through the simulated load sharing line 402 between the Aa parallel controller and the load sharing module and the simulated load sharing line 401 between the Aa parallel controller and the load sharing module. The load sharing line 402 and the simulated load sharing line 401 between the load sharing modules exchange the real-time operating power of the 1# internal combustion generator set 302 to the 2# load sharing module 201. Therefore, the 2# load sharing module 201 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. It is known that the number of units running online is four, and exchanges this information to the 2#Bb parallel controller 205 through the digital load sharing line 501 between the 2# load sharing module and the 2#Bb parallel controller. The 2#Bb parallel controller 205 calculates the sum of the real-time operating powers of the four units P according to the exchanged information. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4,2#Bb parallel controller 205 sends speed regulation signal SPEED and voltage regulation signal AVR to 4# internal combustion generator set 305 according to Pm, and adjusts the operating power of 4# internal combustion generator set 305 to the single unit average power target value Pm within 5s.

[0037] The digital symmetrical line management method is as follows: the 1#Aa parallel controller 202 calculates the real-time operating power of the 1# internal combustion generator set 302 by real-time acquisition of the current and voltage signals of the 1# internal combustion generator set 302, and at the same time, the 1#Aa parallel controller 202 exchanges the power signal in real time to the 1# load sharing module 200 through the digital load sharing line 502 between the 1# load sharing module and the 1#Aa parallel controller;

[0038] The 1#Bb parallel controller 204 calculates the real-time operating power of the 3# internal combustion generator set 304 by real-time acquisition of the current and voltage signals of the 3# internal combustion generator set 304. At the same time, the 1#Bb parallel controller 204 exchanges the power signal in real time to the 1# load sharing module 200 through the digital load sharing line 500 between the 1# load sharing module and the 1#Bb parallel controller;

[0039] The 2#Aa parallel controller 203 calculates the real-time operating power of the 2# internal combustion generator set 303 by real-time acquisition of the current and voltage signals of the 2# internal combustion generator set 303. At the same time, the 2#Aa parallel controller 203 exchanges the power signal to the 2# load sharing module 201 in real time through the digital load sharing line 503 between the 2# load sharing module and the 2#Aa parallel controller;

[0040] The 2#Bb parallel controller 205 calculates the real-time operating power of the 4# internal combustion generator set 305 by real-time acquisition of the current and voltage signals of the 4# internal combustion generator set 305. At the same time, the 2#Bb parallel controller 205 exchanges the power signal in real time to the 2# load sharing module 201 through the digital load sharing line 501 between the 2# load sharing module and the 2#Bb parallel controller.

[0041] In summary, the 1# load sharing module 200 has learned the real-time operating power of the 1# internal combustion generator set 302 and the 3# internal combustion generator set 304 , and the 2# load sharing module 201 has learned the real-time operating power of the 2# internal combustion generator set 303 and the 4# internal combustion generator set 305 .

[0042] The 2# load sharing module 201 exchanges the real-time operating power of the 2# internal combustion generator set 303 and the 4# internal combustion generator set 305 to the 1# load sharing module 200 through the simulated load sharing line 401 between the load sharing modules. Therefore, the 1# load sharing module 200 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. It is known that the number of units running online is four. The 1# load sharing module 200 exchanges this information to the 1#Aa parallel controller 202 through the digital load sharing line 502 between the 1# load sharing module and the 1#Aa parallel controller. The 1#Aa parallel controller 202 calculates the sum of the real-time operating powers of the four units P according to the exchanged information. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 1#Aa parallel controller 202 sends speed control signal SPEED and voltage control signal AVR to 1# internal combustion generator set 302 according to Pm, and adjusts the operating power of 1# internal combustion generator set 302 to the target power value Pm of the single unit within 5s; similarly, 1# load sharing module 200 exchanges this information to 1#Bb parallel controller 204 through the digital load sharing line 500 between 1# load sharing module and 1#Bb parallel controller, and 1#Bb parallel controller 204 calculates the sum of the real-time operating powers of the four units P according to the exchanged information 总 , that is, P 总=P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 1#Bb parallel controller 204 sends speed regulation signal SPEED and voltage regulation signal AVR to 3# internal combustion generator set 304 according to Pm, and adjusts the operating power of 3# internal combustion generator set 304 to the single unit average power target value Pm within 5 seconds.

[0043] At the same time, the 1# load sharing module 200 exchanges the real-time operating power of the 1# internal combustion generator set 302 and the 3# internal combustion generator set 304 to the 2# load sharing module 201 through the simulated load sharing line 401 between the load sharing modules. Therefore, the 2# load sharing module 201 learns that the real-time operating powers of the four internal combustion generator sets are P1, P2, P3, and P4, respectively. It is known that the number of units running online is four. The 2# load sharing module 201 exchanges this information to the 2#Aa parallel controller 203 through the digital load sharing line 503 between the 2# load sharing module and the 2#Aa parallel controller. The 2#Aa parallel controller 203 calculates the sum of the real-time operating powers of the four units P according to the exchanged information. 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 2#Aa parallel controller 203 sends speed regulation signal SPEED and voltage regulation signal AVR to 2# internal combustion generator set 303 according to Pm, and adjusts the operating power of 2# internal combustion generator set 303 to the target power value Pm of the single unit within 5s; similarly, 2# load sharing module 201 exchanges this information to 2#Bb parallel controller 205 through the digital load sharing line 501 between 2# load sharing module and 2#Bb parallel controller, and 2#Bb parallel controller 205 calculates the sum of the real-time operating powers of the four units P according to the exchanged information 总 , that is, P 总 =P1+P2+P3+P4, then calculate the average power target value Pm of a single unit, that is, Pm=P 总 / 4, 2#Bb parallel controller 205 sends speed regulation signal SPEED and voltage regulation signal AVR to 4# internal combustion generator set 305 according to Pm, and adjusts the operating power of 4# internal combustion generator set 305 to the single unit average power target value Pm within 5s.

[0044] The present invention can utilize the multiple sets of load data sharing interfaces of the load sharing module to establish a load sharing link between parallel controllers of different brands, thereby realizing real-time interaction of load data between units, and ultimately achieving the purpose of load balancing among multiple units.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A parallel management system based on controllers of different brands. Features: It includes an analog-to-digital symmetrical line management system and a digital symmetrical line management system. Both the analog-to-digital symmetrical line management system and the digital symmetrical line management system include parallel controllers of different brands, load sharing modules, analog load sharing lines, and digital load sharing lines. The difference between the two lies in the difference in the load sharing interface of the parallel controller.

2. According to claim 1, a parallel management system based on controllers of different brands, Features: The analog-to-digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line, uses the analog load sharing line on one side, and uses the digital load sharing line on the opposite side for real-time data interaction, that is, the analog load sharing line is used between the load sharing modules of each internal combustion generator set, the analog load sharing line is used between the load sharing module and the Aa parallel controller, and the digital load sharing line is used between the load sharing module and the Bb parallel controller for real-time data interaction.

3. According to claim 1, a parallel management system based on controllers of different brands, Features: The digital symmetrical line management system uses the analog load sharing line between the load sharing modules as the center line, uses the digital load sharing line on one side, and also uses the digital load sharing line on the opposite side for real-time data exchange, that is, the load sharing modules of each internal combustion generator set use the analog load sharing line, the load sharing module and the Aa parallel controller use the digital load sharing line, and the load sharing module and the Bb parallel controller use the digital load sharing line for real-time data exchange.

4. A parallel management system based on controllers of different brands according to claim 2 or 3, Features: The simulated load sharing line is a link between the load sharing module and the parallel controller for performing load data exchange using simulated signals.

5. A parallel management system based on controllers of different brands according to claim 2 or 3, Features: The digital load sharing line is a link between the load sharing module and the parallel controller for load data exchange using CAN communication.

6. A parallel management system based on controllers of different brands according to claim 2 or 3, Features: The load sharing module has multiple sets of load data sharing interfaces, namely, one reactive power and one active power analog load sharing interface and two CAN communication digital load sharing interfaces, and uses the multiple sets of load sharing links established by its interfaces to perform real-time interaction of unit load data, thereby realizing load distribution among multiple units.

7. A parallel management system based on controllers of different brands according to claim 2 or 3, Features: The Aa parallel controller is a controller of model a of brand A with a parallel function, and the Bb parallel controller is a controller of model b of brand B with a parallel function.

8. A management method based on a parallel management system between controllers of different brands as described in any one of claims 1 to 7, Features: The parallel controllers of different brands collect the current and voltage signals of the corresponding internal combustion generator sets in real time, calculate the real-time operating power of each corresponding internal combustion generator set, and exchange the data of each unit through the analog sharing link and digital sharing link established with the load sharing module as the center, so that each parallel controller can obtain the number of units currently in operation and the total operating power data, so that each parallel controller calculates the average power target value, and controls the power of the corresponding units to run to the average power target value.

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