Multi-agent-based micro power supply decentralized coordination control method

Abstract

The invention relates to a multi-agent-based micro power supply decentralized coordination control method, which comprises the steps of building a two-layer multi-agent distributed coordination control scheme; designing the internal structure of two-layer multiple agents, wherein each lower-layer unit agent is designed to be a hybrid agent comprising a reaction layer and a negotiation layer; each upper-layer agent is designed to comprise a learning and evaluation module, a database, a knowledge base, a secondary control module and an action executing module; putting forward a micro power supply decentralized control scheme, wherein decentralized control for a distributed power supply is double closed-loop control, and a fractional order PID controller is designed; setting parameter optimization of the fractional order PID controller by using a particle swarm optimization algorithm; designing a distributed coordination controller based on a consistency control theory; and verifying the effectiveness of the scheme by using a simulation test. According to the method, a control strategy, which is economically feasible, safe and reliable, is provided for the distributed power supply of the microgrid, and the microgrid is ensured to operate safely and stably in an island mode.

Description

technical field [0001] The invention belongs to the field of smart grid control, and in particular relates to a multi-agent-based distributed coordination control method for micro power sources. Background technique [0002] In recent years, distributed generation technology has attracted the attention of scholars at home and abroad, and has been widely used in power systems. Distributed power sources include photovoltaic power generation devices, wind power generators, fuel cells and micro gas turbines. Distributed power generation has the advantages of small investment, good environmental protection, and high flexibility, but there are also many problems, such as high cost of single-machine access to distributed power generation, and relatively difficult control. In addition, distributed power is an uncontrollable power source compared to large power grids. Large power grids have to deal with distributed power in ways such as limitation and isolation to reduce the impact ...

AI Technical Summary

Problems solved by technology

Each distributed power supply is independently controlled according to its own local relevant information, no communication link is required, and the plug-and-play of distributed power supply is realized. However, with the continuous penetration of new energy generation, the structure of the micro-grid is becoming more and more complex. , decentralized control due to the lack of cooperation between units, when the microgrid suffers severe disturbances, the frequency quality of the system may not be guaranteed

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