电工技术学报2012，Vol.27Issue(11)：183-190,8.
基于单周控制的三相PWM整流器负序电压补偿型不平衡控制策略
Negative Sequence Voltage Feed Forward Compensation Unbalanced Control Strategy for Three-Phase PWM Rectifier Based on One Cycle Control
摘要
Abstract
Considering solution to the control problem of three-phase pulse width modulation (PWM) rectifier under unbalanced input grid voltages, a negative sequence voltage feed forward compensation unbalanced control strategy for three-phase PWM rectifier based on one cycle control is proposed in this paper. The control strategy adopts only one DC voltage proportional integral(PI) controller to regulate the instantaneous active power to a constant value without any ripple. Therefore, the system control structure is simplified and extraction for positive and negative sequence components of grid currents is not needed any more. Simulation and experimental results indicate that the control system eliminate the second harmonic waves of DC voltage and harmonic waves of AC currents entirely. And the unbalanced performance of three-phase PWM rectifier is optimized greatly.关键词
三相PWM整流/单周控制/电网电压不平衡/恒有功功率控制/电压跌落Key words
Three-phase PWM rectify/one cycle control/unbalanced input grid voltages/invariant active power control/voltage dip分类
信息技术与安全科学引用本文复制引用
徐友,郑建勇,梅军,姚磊..基于单周控制的三相PWM整流器负序电压补偿型不平衡控制策略[J].电工技术学报,2012,27(11):183-190,8.基金项目
国家高技术研究发展计划（863计划）资助项目（2008AA05Z421）. （）
