电力系统自动化Issue(23)：20-26,7.DOI:10.7500/AEPS201212009
基于同步电压源的微电网分层控制策略设计
Synchronous Voltage Source Based Design of Hierarchical Control Strategy for Microgrid
摘要
Abstract
A new hierarchical control strategy for the microgrid based on the synchronous voltage source converter on different time scales is proposed.In the primary control,the reactive power sharing problem of conventional synchronous voltage source converter control is analyzed.And the method of increasing the droop coefficient is adopted to improve the accuracy of power sharing.This method is suitable for the microgrid with various topologies involved in the local and public load.In the secondary voltage and frequency control,the calculating method of the droop curve adj ustment in the secondary control is elaborated in detail,improving the voltage and frequency quality of the power system.In addition,the seamless transition control between interconnection and islanding mode and the tie-line power control between microgrid and main grid are proposed in the secondary control.And power sharing can be maintained in mode transition while the tie-line power can be controlled in the interconnection mode.Finally,the rationality of the proposed control strategy is verified by simulation in PSCAD/EMTDC software environment.关键词
同步电压源/微电网(微网)/分层控制/功率均分/无缝切换Key words
synchronous voltage source/microgrid/hierarchical control/power sharing/seamless transition引用本文复制引用
鲍薇,胡学浩,李光辉,何国庆,刘思言..基于同步电压源的微电网分层控制策略设计[J].电力系统自动化,2013,(23):20-26,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2011AA05A106,2011AA05A301)。@@@@This work is supported by National High Technology Research and Development Program of China (863 Program)(No.2011AA05A106,No.2011AA05A301) （863计划）
