电器与能效管理技术Issue(12)：33-40,56,9.DOI:10.16628/j.cnki.2095-8188.2024.12.006
采用孤岛检测优化策略的SiC双向PCS设计
SiC Bidirectional PCS with Optimized Strategy of Islanding Detection
摘要
Abstract
At present,high voltage and high frequency have become the development trend of bidirectional power conversion systems(PCS).Therefore,the application of silicon carbide(SiC)devices in bidirectional energy storage converters is becoming more and more extensive.In order to achieve islanding protection in small and medium-power bidirectional PCS,and address the issue of increased grid connected hamonics caused by the frequency disturbance method during dectecting,a T-type three-level topology,a DSOGI phase-locked loop based on line voltage,and a grid connected current positive and negative sequence separation control strategy were adopted to design PCS.At the same time,an optimizied strategy for islanding detection was proposed,which can effectively reduce the harmonic content of grid connected current and can detect the islanding effects within the specified time for protection.Finally,a bidirectional PCS prototype was completed,which was verified that the optimal control strategy was correct and effective.关键词
双向储能变流器/T型三电平逆变电路/碳化硅/孤岛检测Key words
bidirectional power conversion system(PCS)/T-type three-level inverter circuit/silicon carbide(SiC)/islanding detection分类
信息技术与安全科学引用本文复制引用
卢英杰,毛行奎,陈奇..采用孤岛检测优化策略的SiC双向PCS设计[J].电器与能效管理技术,2024,(12):33-40,56,9.基金项目
国家自然科学基金项目(52107183) （52107183）
