电力系统保护与控制2017，Vol.45Issue(19)：94-100,7.DOI:10.7667/PSPC161569
串联结构多微网并离网模式切换控制策略
Grid-connected and off-grid mode switching control strategies of multi-microgrid with series structure
摘要
Abstract
Due to interconnection and power supply, multi-microgrid system can be composed of multiple microgrids in adjacent area. Based on researches of single microgrid phase-locked loop control, tie-line power and phase adjustment, this paper presents grid-connected and off-grid mode switching control strategies of multi-microgrid with series structure characteristic. For off-grid to grid-connected mode switching, the control strategies calculate mode switching time of off-grid to grid-connected in different cases of initial phase and energy storage frequency reference value. For grid-connected to off-grid mode switching, based on the active and passive mode switching, the control strategies adjust energy storage output power and tie-line power of the sub-microgrid. Simulation results verify that the control strategies can realize grid-connected and off-grid mode fast switching of multi-microgrid with series structure.关键词
多微网/串联结构/模式切换/初始相角/联络线功率Key words
multi-microgrid/series structure/mode switching/initial phase/tie-line power引用本文复制引用
袁昊哲,杨苹..串联结构多微网并离网模式切换控制策略[J].电力系统保护与控制,2017,45(19):94-100,7.基金项目
国家863计划(2014AA052001) （2014AA052001）
广东省科技计划项目(2012B040303005) This work is supported by National High-tech R & D Program of China (863 Program) (No. 2014AA052001) and Science and Technology Program of Guangdong Province (No. 2012B040303005). （2012B040303005）
