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An event-driven SOC balance control method for AC microgrid energy storage

An event-driven, balanced control technology, applied in the direction of AC network load balancing, charge balancing circuit, flexible AC transmission system, etc. Problems such as battery parameters can be solved to achieve the effect of reducing requirements, good effect and high stability

Active Publication Date: 2022-04-01
万克能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the Chinese patent 201910158768.4 only realizes the balance of SOC between energy storages, and cannot provide power balance and power tracking functions for the running microgrid, and there is no communication in its distributed control structure, but a droop control based improvement. This kind of peer-to-peer control structure is highly dependent on the accuracy of data collection, and does not consider the difference in parameters of the energy storage battery in the microgrid, such as different rated power, etc., which has great resistance in the actual application process.

Method used

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  • An event-driven SOC balance control method for AC microgrid energy storage
  • An event-driven SOC balance control method for AC microgrid energy storage
  • An event-driven SOC balance control method for AC microgrid energy storage

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with specific examples.

[0044] An event-driven AC microgrid energy storage SOC balance control method, the control method is applied to a multi-agent system, a multi-agent system is an organic combination of a plurality of agents, and the agents are used for simple function calculations and data recording , Communication.

[0045] The method includes:

[0046] 1. Communication network representation: Use an undirected graph containing the connections between agents and agents to describe the communication relationship of each agent in a multi-agent system, denoted as G={N,E}; where N ={v 1 ,v 2 ,...,v n} represents the set of all agents in the communication network, E={ε 1 ,ε 2 ,...,ε m} represents the set of all communication connections in the communication network, where the communication connection is an unordered set of two agents, if {v i ,v j}∈E, it is said that there is a c...

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Abstract

The invention provides an event-driven AC microgrid energy storage SOC balance control method, which has the characteristics of high reliability, good scalability, plug-and-play, etc. through the distributed structure, and has the characteristics of low communication requirements through event-driven control. The distributed power calculation method has the characteristics of fast SOC balance and accurate power tracking. The event-driven AC microgrid energy storage SOC balance control method can meet the needs of the battery energy storage system in the AC microgrid. A microgrid energy storage SOC balance control method with good scalability, fast, accurate, low communication requirements, and AC microgrid power balance.

Description

technical field [0001] The invention belongs to the technical field of multi-agent system control, and in particular relates to an event-driven AC microgrid energy storage SOC balance control method. Background technique [0002] As a measure to deal with the shortage of fossil fuels and environmental pollution, micro-grids have received more and more attention in recent years. However, due to the randomness and uncertainty of renewable energy output, it is easy to bring many adverse effects to the power system. , the microgrid is usually equipped with a corresponding energy storage system to work together. Battery energy storage device (BESD) is a common energy storage method for micro-grids due to its high reliability and mature technology. However, as the system continues to operate, the state of charge (SOC) of each battery There will be differences. In severe cases, some BESDs will be overcharged or quit running early due to low power, which will cause the rest of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J3/32H01M10/42
CPCH02J3/32H02J7/0014H02J7/00032H01M10/4207H01M2010/4271H01M2010/4278H02J2203/10Y02E40/10Y02E60/10
Inventor 董树锋卢开诚
Owner 万克能源科技有限公司
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