电力系统自动化2017，Vol.41Issue(14)：153-158,6.DOI:10.7500/AEPS20170125002
基于PIR控制器的CSC-DPMSG-WGS低电压穿越控制
PIR Controller Based Low Voltage Ride-through Control of Current Source Converter Based Direct-drive PMSG Wind Generation System
摘要
Abstract
A novel low voltage ride through (LVRT) control scheme based on proportional-integral-resonant (PIR) controller and also applicable to current source converter based direct-drive permanent magnet synchronous generator (PMSG) wind generation system (CSC-DPMSG-WGS) is proposed.Based on the proposed method,once unbalanced grid voltage dip happens,the generator-side converter will quickly limit the power which flows to the DC-link to coordinate the grid-side and generator-side power.Meanwhile the grid-side converter adopts the PIR controller to control the positive and negative sequence current simultaneously in the positive sequence rotating coordinate system.This is intended to eliminate the power fluctuation of twice the fundamental frequency caused by unbalanced grid fault and maintain DC current stability.It is proved by simulation and experimental results that the proposed control strategy can eliminate the fluctuation of DC current and realize LVRT during balanced and unbalanced dip faults.关键词
电流源型变换器/谐振控制器/功率波动/低电压穿越Key words
current source converter/resonant controller/power fluctuation/low voltage ride-through (LVRT)引用本文复制引用
张榴晨,吴文晗,茆美琴..基于PIR控制器的CSC-DPMSG-WGS低电压穿越控制[J].电力系统自动化,2017,41(14):153-158,6.基金项目
国家自然科学基金资助项目(51077033) （51077033）
国家重点基础研究发展计划(973计划)资助项目(2009CB219708) （973计划）
广东省引进创新团队项目(2011N015).This work is supported by National Natural Science Foundation of China (No.51077033),National Basic Research Program of China (973 Program) (No.2009CB219708) and Guangdong Province Introduced Innovation Talent Project (No.2011N015). （2011N015）
