MAS-based multi-microgrid energy management system and simulation method

Abstract

The invention discloses an MAS-based multi-microgrid energy management system and a simulation method, and belongs to the technical field of multi-microgrid energy management.The MAS-based multi-microgrid energy management system comprises an MAS microgrid energy management system, the MAS microgrid energy management system is in signal connection with a system structure, the MAS microgrid energy management system is in signal connection with a function module, and the function module is in signal connection with the MAS microgrid energy management system. The MAS micro-grid energy management system is in signal connection with a simulation method, the MAS micro-grid energy management system is in signal connection with a data protection unit, and the MAS micro-grid energy management system is in signal connection with an energy storage unit. According to the invention, through the MAS architecture, a complex energy management system is decomposed into a plurality of relatively simple Agents, each Agent is responsible for specific tasks, such as distributed power supply control and load management, so that the overall management efficiency of the system is improved, the mutual cooperation between the Agent design and the communication protocol design ensures the effective distribution and scheduling of energy, and the energy management efficiency is improved. Energy waste is reduced, and the energy utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the field of multi-microgrid energy management, and in particular to a multi-microgrid energy management system and a simulation method based on MAS. Background Art

[0002] With the rapid development of new energy technologies, the penetration rate of distributed generation (DG) units such as solar energy, wind energy and other renewable energy sources continues to increase. These distributed energy sources have characteristics such as intermittency and volatility, which makes them face complex energy management and unstable operation after large-scale access to the power grid. Microgrids have emerged as a new type of energy system, aiming to make full use of the advantages of distributed energy, realize autonomous power supply of local loads and flexible connection with the main power grid. However, existing microgrids have high energy waste, low energy utilization, and cannot adapt to the energy management needs of microgrids of different scales and complexities. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-microgrid energy management system and simulation method based on MAS to solve the problems raised in the above background technology that the existing microgrids have high energy waste, low energy utilization, and cannot adapt to the energy management needs of microgrids of different scales and complexities.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-microgrid energy management system and simulation method based on MAS, including a MAS microgrid energy management system, the MAS microgrid energy management system is signal-connected with a system structure, the MAS microgrid energy management system is signal-connected with a functional module, the MAS microgrid energy management system is signal-connected with a simulation method, the MAS microgrid energy management system is signal-connected with a data protection unit, and the MAS microgrid energy management system is signal-connected with an energy storage unit;

[0005] The MAS microgrid energy management system includes: S1: formulating a reasonable power generation plan according to the power generation characteristics and real-time operation status of the distributed power sources in the microgrid;

[0006] As a further preferred embodiment of the present technical solution: the system structure includes a local management layer, a microgrid management layer, and a microgrid coordination management layer, and the system structure signals connect the local management layer, the microgrid management layer, and the microgrid coordination management layer;

[0007] As a further preferred embodiment of the present technical solution: the functional module includes a data acquisition and monitoring module, a prediction and optimization module, a control and scheduling module, a communication and collaboration module, and a simulation and verification module, and the functional module is signal-connected to the data acquisition and monitoring module, the prediction and optimization module, the control and scheduling module, the communication and collaboration module, and the simulation and verification module;

[0008] The functional modules include: S3: realizing specific functions in the system or software, splitting the complex system or software into multiple functional modules, each module focusing on completing one or a group of related tasks;

[0009] The simulation method comprises: S4: reducing a complex system into several subsystems for analysis;

[0010] The formula for smoothing data using the moving average method in the data acquisition and monitoring module is:

[0011]

[0012] in:

[0013] It’s the moment;

[0014] Estimated value of t;

[0015] X t-i+1 is the actual value at the past N time points;

[0016] As a further preferred embodiment of the present technical solution: the simulation method includes system modeling, agent design, communication protocol design, simulation platform construction, and simulation operation structure analysis, and the simulation method is electrically connected to system modeling, agent design, communication protocol design, simulation platform construction, and simulation operation structure analysis;

[0017] The communication protocol design message passing mechanism formula is:

[0018] M pub ={msgID,topic,data}

[0019] M sub ={subID,topic};

[0020] in:

[0021] M pub is the publisher message;

[0022] M sub is a subscriber request;

[0023] As a further preferred embodiment of the present technical solution: the data protection unit includes a data acquisition unit, a data collection unit, and a data storage unit;

[0024] The data protection unit includes: S5: ensuring confidentiality, integrity and availability of data;

[0025] As a further preferred embodiment of the technical solution: the local management layer, the microgrid management layer, and the microgrid coordination management layer are distributed vertically in the system structure;

[0026] As a further preferred embodiment of the present technical solution: the Agent is designed to exchange information through a preset communication protocol;

[0027] As a further preferred embodiment of the technical solution: the system modeling establishes a simulation model of a multi-microgrid energy management system;

[0028] As a further preferred embodiment of the present technical solution: the local management layer, the microgrid management layer, and the microgrid coordination management layer are signal-connected to each other;

[0029] As a further preferred embodiment of the present technical solution: the energy storage unit includes an energy storage power supply and a recording unit.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention decomposes the complex energy management system into multiple relatively simple agents through the MAS architecture. Each agent is responsible for a specific task, such as distributed power control, load management, etc., thereby improving the overall management efficiency of the system. The mutual cooperation between the agent design and the communication protocol design ensures the effective allocation and scheduling of energy, reduces energy waste, and improves energy utilization;

[0032] 2. In the present invention, the MAS architecture allows for easy addition or deletion of microgrids and agents, making the system highly scalable. When a new microgrid is added or an existing microgrid is removed, it is only necessary to simply add or delete the corresponding agent. This architecture also makes the system more flexible and can adapt to the energy management needs of microgrids of different scales and complexities.

[0033] 3. In the present invention, the simulation method provides an effective verification method for different energy management strategies. By simulating the actual operation scenario in the simulation environment, the effect and performance of the strategy can be evaluated, so as to optimize and adjust it. This helps researchers and engineers to verify the feasibility of the strategy before actual deployment, reduce trial and error costs, and improve the overall performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 1 ;

[0035] Figure 2 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 2 ;

[0036] Figure 3 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 3 ;

[0037] Figure 4 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 4 ;

[0038] Figure 5 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 5 ;

[0039] Figure 6 The present invention is a multi-microgrid energy management system and simulation method based on MAS process Figure 6 .

[0040] In the figure: 1. MAS microgrid energy management system; 2. System structure; 3. Functional module; 4. Simulation method; 5. Data protection unit; 6. Energy storage unit; 201. Local management layer; 202. Microgrid management layer; 203. Microgrid coordination management layer; 301. Data acquisition and monitoring module; 302. Prediction and optimization module; 303. Control and scheduling module; 304. Communication collaboration module; 305. Simulation verification module; 401. System modeling; 402. Agent design; 403. Communication protocol design; 404. Simulation platform construction; 405. Simulation operation structure analysis. DETAILED DESCRIPTION

[0041] 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.

[0042] Example

[0043] See also Figure 1-Figure 6As shown, the present invention provides a technical solution: a multi-microgrid energy management system and simulation method based on MAS, including a MAS microgrid energy management system 1, the MAS microgrid energy management system 1 is signal-connected with a system structure 2, the MAS microgrid energy management system 1 is signal-connected with a functional module 3, the MAS microgrid energy management system 1 is signal-connected with a simulation method 4, the MAS microgrid energy management system 1 is signal-connected with a data protection unit 5, and the MAS microgrid energy management system 1 is signal-connected with an energy storage unit 6. Through the MAS architecture, the complex energy management system is decomposed into multiple relatively simple Agents, each Agent is responsible for a specific task, such as distributed power supply control, load management, etc.

[0044] In this embodiment, specifically: the system structure 2 includes a local management layer 201 , a microgrid management layer 202 , and a microgrid coordination management layer 203 , and the signals on the system structure 2 connect the local management layer 201 , the microgrid management layer 202 , and the microgrid coordination management layer 203 .

[0045] In this embodiment, specifically: the functional module 3 includes a data acquisition and monitoring module 301, a prediction and optimization module 302, a control and scheduling module 303, a communication and collaboration module 304, and a simulation and verification module 305. The signals on the functional module 3 are connected to the data acquisition and monitoring module 301, the prediction and optimization module 302, the control and scheduling module 303, the communication and collaboration module 304, and the simulation and verification module 305. The data acquisition and monitoring module 301 collects the operating data of each distributed power source, energy storage system, load and other equipment in the microgrid in real time, and monitors and analyzes it to provide data support for energy management.

[0046] In this embodiment, specifically: the simulation method 4 includes system modeling 401, agent design 402, communication protocol design 403, simulation platform construction 404, simulation operation structure analysis 405, simulation method 4 electrical connection system modeling 401, agent design 402, communication protocol design 403, simulation platform construction 404, simulation operation structure analysis 405, communication protocol design 403 can ensure the smooth transmission and sharing of information, these protocols should support multiple communication methods and data formats to adapt to the heterogeneity between different microgrids. At the same time, the protocol should also consider the requirements of security, reliability and real-time performance.

[0047] In this embodiment, specifically: the data protection unit 5 includes a data acquisition unit, a data collection unit, and a data storage unit.

[0048] In this embodiment, specifically: the local management layer 201 , the microgrid management layer 202 , and the microgrid coordination management layer 203 are distributed vertically in the system structure 2 .

[0049] In this embodiment, specifically: Agent design 402 exchanges information through a preset communication protocol design 403.

[0050] In this embodiment, specifically: system modeling 401 establishes a simulation model of a multi-microgrid energy management system.

[0051] In this embodiment, specifically: the local management layer 201, the microgrid management layer 202, and the microgrid coordination management layer 203 are signal-connected to each other.

[0052] In this embodiment, specifically: the energy storage unit 6 includes an energy storage power supply and a recording unit.

[0053] Working principle or structural principle: First, the data protection unit 5 is used to collect data from the local management layer 201, the microgrid management layer 202, and the microgrid coordination management layer 203, and then transmitted to the MAS microgrid energy management system 1. The MAS microgrid energy management system 1 transmits this information to the energy management units responsible for different levels. At different levels, different types of agents are used to perform specific energy management functions. Different agents in the agent design 402 jointly complete the energy management task through the control scheduling module 303. Therefore, when a distributed power source fails, the local agent can coordinate other distributed power sources to take over its load, and simulation can be performed at the same time. During the simulation process, the simulation model is run according to the preset time step. In each time step, each agent performs corresponding actions according to the current system state and the preset control strategy, such as adjusting the output of the distributed power source, switching the load, etc. After the simulation is completed, the simulation results are analyzed and processed, which includes observing and recording the energy flow of the system, the supply and demand balance state, the energy exchange between microgrids and other information. By comparing and analyzing the simulation results under different energy management strategies, the effect of the strategy and the performance of the system can be evaluated.

[0054] 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 multi-microgrid energy management system and simulation method based on MAS, comprising a MAS microgrid energy management system (1), characterized in that: The MAS microgrid energy management system (1) is signal-connected to a system structure (2), the MAS microgrid energy management system (1) is signal-connected to a functional module (3), the MAS microgrid energy management system (1) is signal-connected to a simulation method (4), the MAS microgrid energy management system (1) is signal-connected to a data protection unit (5), and the MAS microgrid energy management system (1) is signal-connected to an energy storage unit (6); The MAS microgrid energy management system (1) comprises: S1: formulating a reasonable power generation plan according to the power generation characteristics and real-time operating conditions of the distributed power sources in the microgrid.

2. The multi-microgrid energy management system and simulation method based on MAS according to claim 1 is characterized in that: The system structure (2) includes a local management layer (201), a microgrid management layer (202), and a microgrid coordination management layer (203); and signals on the system structure (2) connect the local management layer (201), the microgrid management layer (202), and the microgrid coordination management layer (203).

3. The multi-microgrid energy management system and simulation method based on MAS according to claim 2 is characterized in that: The functional module (3) comprises a data acquisition and monitoring module (301), a prediction and optimization module (302), a control and scheduling module (303), a communication and collaboration module (304), and a simulation and verification module (305); and the functional module (3) is signal-connected to the data acquisition and monitoring module (301), the prediction and optimization module (302), the control and scheduling module (303), the communication and collaboration module (304), and the simulation and verification module (305); The functional modules (3) include: S3: realizing specific functions in the system or software, splitting the complex system or software into multiple functional modules, each module focusing on completing one or a group of related tasks; The formula for smoothing data using the moving average method in the data acquisition and monitoring module is: in: It’s the moment; Estimated value of t; X t-i+1 is the actual value at the past N time points.

4. The multi-microgrid energy management system and simulation method based on MAS according to claim 3 is characterized by: The simulation method (4) includes system modeling (401), agent design (402), communication protocol design (403), simulation platform construction (404), and simulation operation structure analysis (405). The simulation method (4) includes electrical connection system modeling (401), agent design (402), communication protocol design (403), simulation platform construction (404), and simulation operation structure analysis (405); The simulation method (4) comprises: S4: reducing a complex system into several subsystems for analysis; The communication protocol design message passing mechanism formula is: M pub ={msgID,topic,data} M sub ={subID,topic}; in: M pub is the publisher message; M sub It is a subscriber request.

5. The multi-microgrid energy management system and simulation method based on MAS according to claim 4 is characterized in that: The data protection unit (5) comprises a data acquisition unit, a data collection unit, and a data storage unit; The data protection unit (5) comprises: S5: ensuring the confidentiality, integrity and availability of data.

6. The multi-microgrid energy management system and simulation method based on MAS according to claim 5 is characterized in that: The local management layer (201), the microgrid management layer (202), and the microgrid coordination management layer (203) are distributed vertically within the system structure (2).

7. The multi-microgrid energy management system and simulation method based on MAS according to claim 6 is characterized in that: The Agent design (402) exchanges information via a preset communication protocol design (403).

8. The multi-microgrid energy management system and simulation method based on MAS according to claim 7 is characterized in that: The system modeling (401) establishes a simulation model of a multi-microgrid energy management system.

9. The multi-microgrid energy management system and simulation method based on MAS according to claim 8, characterized in that: The local management layer (201), the microgrid management layer (202), and the microgrid coordination management layer (203) are connected to each other by signals.

10. The multi-microgrid energy management system and simulation method based on MAS according to claim 9, characterized in that: The energy storage unit (6) comprises an energy storage power source and a recording unit.

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