电力系统保护与控制2011，Vol.39Issue(20)：1-5,10,6.
微网运行模式平滑切换的控制策略研究
Study on control scheme for smooth transition of micro-grid operation modes
摘要
Abstract
To meet the requirements of both islanded and grid-connected operation of microgrid and to realize the smooth transition between the two modes, a reference adjusting control loop is added to the basic droop controller. By switching the loop. PQ control and droop control are implemented in grid-connected and island mode respectively. A pre-synchronizing controller is designed to synchronize the inverter to the grid when the islanded microgrid needs to reconnect to the grid. This control unit effectively restrains the impact current in the parallel connection. A mode transition process is proposed and validated by simulation. The microgrid simulation experiment also verifies several other operational conditions both in islanded mode and grid-connected mode.This work is supported by National Natural Science Foundation of China (No. 50910234).关键词
微网/下垂控制/PQ控制/模式切换/预同步Key words
microgrid/ droop control/ PQ control/ mode transition/ pre-synchronizing分类
信息技术与安全科学引用本文复制引用
张纯,陈民铀,王振存..微网运行模式平滑切换的控制策略研究[J].电力系统保护与控制,2011,39(20):1-5,10,6.基金项目
国家自然科学基金项目(50910234) （50910234）
国家“111计划”项目(B08036) （B08036）
