电力系统自动化2017，Vol.41Issue(8)：45-51,7.DOI:10.7500/AEPS20161118001
孤岛微电网分布式电压不平衡补偿控制策略
Distributed Control Strategy for Voltage Unbalance Compensation in Islanded Microgrid
摘要
Abstract
A multi-agent system (MAS) based distributed cooperative control strategy for voltage unbalance compensation in the islanded microgrid is proposed to deal with the voltage unbalance at the point of common coupling (PCC) due to unbalanced loads or faults.The distributed generators (DGs) in the microgrid are equivalent to the agents in a networked MAS.And the reference of compensation signal is produced by a leader node connected only to a small portion of the agents.Thus the voltage unbalance compensation design resembles a tracking synchronization problem.The distributed control rate is designed using linear state feedback.This control strategy relies on a directed one-way communication graph.Each agent only deals with local information and that from its neighborhood.This kind of control strategy obviates the requirement for a central controller, which, in turn, improves the reliability.The effectiveness of the proposed control strategy is verified by a microgrid test system.The simulation results show that the proposed control strategy can effectively suppress the voltage unbalance at PCC.关键词
微电网(微网)/电压不平衡/多代理系统/公共连接点/分布式控制Key words
microgrid/voltage unbalance/multi-agent system (MAS)/point of common coupling (PCC)/distributed control引用本文复制引用
陈萌,肖湘宁..孤岛微电网分布式电压不平衡补偿控制策略[J].电力系统自动化,2017,41(8):45-51,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2015AA050603) （863计划）
中央高校基本科研业务费专项资金资助项目(2016XS01).This work is supported by National High Technology Research and Development Program of China (863 Program) (No.2015AA050603) and Fundamental Research Funds for the Central Universities (No.2016XS01). （2016XS01）
