一种改进的级联型PWM整流器控制策略  

An Improved Control Strategy for Cascade PWM Rectifier

作　　者：吴宗异 邹海荣[1] WU Zong-yi;ZOU Hai-rong(School of Electrical Engineering,Shanghai Dianji Univerity,Shanghai 201306,China)

机构地区：[1]上海电机学院电气学院,上海201306

出　　处：《新一代信息技术》2020年第2期19-25,共7页New Generation of Information Technology

摘　　要：针对PWM整流器会受到不确定因素时对整流器的输出产生控制延时和响应速度慢等问题。提出一种改进的无差拍控制算法。在无差拍算法的基础上引入了基于差分方程的模型预测控制策略,从而用于减小无差拍控制算法中采样误差对电流控制产生的影响,提高电流预测精度电流。The performance of PWM rectifier may be affected by various uncertain external interference,especially when the load changes,it will bring a big impact on the output of the rectifier.This paper proposes a model predictive control strategy based on difference equation based on deadbeat control algorithm,in order to reduce the influence of sampling error on current control in deadbeat control algorithm and improve the current prediction accuracy.

关 键 词：PWM整流器 无差拍 差分方程 模型预测 

分 类 号：TM46[电气工程—电器]