A distributed optimization strategy for an island microgrid with price incentives

doi:10.12028/j.issn.2095-4239.2019.0090

Abstract

Abstract: This paper proposes a distributed optimization dispatch strategy for an isolated microgrid (MG) using a multi-a gent system (MAS). The isolated MG consists of suppliers, consumers and energy storage operators which are considered as agents. Based on the self-interest motivation market, a real-time price mechanism is proposed to optimize energy supply and demand, aiming to maximize the social welfare of each agent in the isolated MG. To achieve market equilibrium among all agents in the isolated MG, an asynchronous alternating direction method of multipliers (ADMM) algorithm is designed to provide market clearing price and solve power balance, where each agent only needs to exchange a small amount of information with its neighboring agents. Simulation results demonstrate the validity of the proposed strategy.

Key words: microgrid multi-agent system, real-time economic dispatch, distributed optimal, ADMM

CLC Number:

TM732

HAO Wenbo, ZHENG Changbao, HU Cungang, RUI Tao, ZHANG Jin. A distributed optimization strategy for an island microgrid with price incentives[J]. Energy Storage Science and Technology, 2019, 8(4): 659-664.

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