微网运行模式无缝切换控制技术研究

胡实; 袁旭峰; 朱余林; 高志鹏; 李芷萧

胡实,袁旭峰,朱余林,高志鹏,李芷萧.微网运行模式无缝切换控制技术研究[J].电测与仪表,2018,55(17):56-61.
HU Shi,YUAN Xufeng,ZHU Yulin,GAO Zhipeng,LI Zhixiao.Research on Seamless Switching Control Technology of Micro Network Operation Mode[J].Electrical Measurement & Instrumentation,2018,55(17):56-61.

微网运行模式无缝切换控制技术研究

Research on Seamless Switching Control Technology of Micro Network Operation Mode

DOI：

中文关键词: 微网无缝切换虚拟同步发电机下垂控制 PSCAD

英文关键词:Microgrid,Seamless switch,VSG,Droop control,PSCAD

基金项目:国家自然科学基金项目（重点项目）

作者中文名	作者英文名	单位
胡实	HU Shi	贵州大学电气工程学院
袁旭峰	YUAN Xufeng	贵州大学电气工程学院
朱余林	ZHU Yulin	贵州大学电气工程学院
高志鹏	GAO Zhipeng	贵州大学电气工程学院
李芷萧	LI Zhixiao	贵州大学电气工程学院

摘要点击次数: 2537

中文摘要:

微网有并网和离网两种工作模式,实现两种工作模式间的无缝切换是保障系统稳定运行的关键。文中首先介绍了微网的系统模型与工作模式,然后分别介绍了基于虚拟同步发电机(VSG)的无缝切换控制技术和基于下垂控制(droop control)的无缝切换技术,最后在PSCAD中搭建了微网系统的仿真模型,验证两种控制技术的可行性,对比分析了两个切换过程的控制效果,由仿真结果得出基于VSG的无缝切换控制策略更适用于微网的并离网切换。

英文摘要:

There are two kinds of micro-grid and off-grid working mode, to achieve seamless switching between the two modes of operation is to ensure the stable operation of the system key. Firstly, the system model and working mode of micro-grid are introduced. Then the seamless switching control technology based on virtual synchronous generator (VSG) and the seamless switching technology based on droop control are introduced respectively. Finally, The simulation model of the microgrid system is validated to verify the feasibility of the two control technologies. The control effects of the two handover processes are compared and analyzed. According to the simulation results, the seamless switching control strategy based on VSG is more applicable to the off-grid handover of the micro-grid.

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