带负载电流前馈的三相VSR的控制策略  

The Control Strategy of Three-Phase VSR with Load Current Feed-Forward

作　　者：高立东[1] 冯丽娜 GAO Li-dong;FENG Li-na(Tai＇an Power Supply Company,Tai＇an 271000,China;Shandong Electric Power Equipment Co.Ltd.,Jinan 250000,China)

机构地区：[1]泰安供电公司,山东泰安271000 [2]山东电力设备有限公司,济南250000

出　　处：《中小企业管理与科技》2018年第22期173-175,共3页Management & Technology of SME

摘　　要：在三种坐标系下详细分析了三相电压型PWM整流器的数学模型,采用双闭环控制策略,在两相旋转坐标系下构建外环电压和内环电流双闭环的控制模型,电压外环引入负载电流前馈控制,并且利用能量守恒的原理和数字化实现的原理设计了电压外环的PI参数,准确估计了负载电流。仿真结果表明系统的电压电流响应迅速准确,抗扰动能力明显提高。Under three kinds of coordinate systems, the mathematical mode of PWM rectifier of three phase voltage mode is analyzed in detail. A double closed loop control strategy is used to construct the double loop control mode of outer loop voltage and inner loop current in two phase rotating coordinate system, and load current feed-forward control is introduced in the voltage outer loop. Through using the principle of energy conservation and digital realization, the PI parameters of the voltage outer loop are designed, and the load current is accurately estimated. The simulation results show- that the voltage and current response of the system is fast and accurate, and the ability of anti disturbance is obviously improved.

关 键 词：双闭环 前馈 能量守恒 

分 类 号：TM424[电气工程—电器]