电力系统自动化2016，Vol.40Issue(10)：16-23,8.DOI:10.7500/AEPS20150615012
基于虚拟同步发电机的微网运行模式无缝切换控制策略
Seamless Switching Control Strategy for Microgrid Operation Modes Based on Virtual Synchronous Generator
摘要
Abstract
For the microgrid system with peer-peer control strategies,seamless switching between islanded and grid-connected operation modes remains a technical barrier need to be solved urgently.This paper introduces the basic structure and the operating mode of a microgrid.According to the characteristics of the islanded and the grid-connected operation modes,a virtual synchronous generator (VSG) control strategy is proposed to switch the operation modes.Besides,a paralleled switching method based on the controller state following is proposed to meet grid-connected operation characteristics of the microgrid.Both phase and current instructions of the current-source mode based on PQ control and the voltage-source mode based on VSG control are tracked in real time,and it can lay a foundation for seamless switching between the two modes. Finally,both simulation and experimental platforms are established.They verify the effectiveness of the proposed strategies.关键词
微网(微电网)/无缝切换/虚拟同步发电机/并行切换/PQ控制Key words
microgrid/seamless switching/virtual synchronous generator (VSG)/parallel transferring/PQ control引用本文复制引用
石荣亮,张兴,徐海珍,刘芳,胡超,余勇..基于虚拟同步发电机的微网运行模式无缝切换控制策略[J].电力系统自动化,2016,40(10):16-23,8.基金项目
国家高技术研究发展计划(863计划)资助项目(2015AA050607)。 （863计划）
