三相PWM整流器基于旋转坐标系的电流控制方法  

Novel method of current control based on rotating coordinate of three phase PWM rectifier

作　　者：张瑞[1] 刘浩[1] 魏克新[1] 

机构地区：[1]天津理工大学天津市复杂系统控制理论及应用重点实验室,天津300384

出　　处：《电源技术》2016年第3期649-651,739,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(50977063)

摘　　要：为了达到三相PWM整流器内环电流协调控制,可以通过空间矢量模型选择合理的电感电压矢量(IVV),使电流变化率朝着正确的方向变化,消除电流误差。为了精确选择合理的IVV,并保证其简便性,提出了旋转坐标系的方法,即通过扇区旋转和矢量旋转,选择与电流误差矢量相邻的IVV,并确定其位置关系。此方法能够分别运用滞环电流控制(HCC)或空间矢量调制(SVM)两种形式得以实现,进而达到不定频或定频控制。最后通过实验对比研究,说明该理论的有效性和两种方法的差异性。In order to achieve the coordinated control of the inner current loop of three-phase PWM rectifier, suitable inductance voltage vector（IVV） based on the space vector model should be selected, the variation of the current vector should point to the right direction to eliminate the current error. For selecting the right IVV accurately and simply, a method of rotating coordinate, namely through sector rotation and vector rotation, was presented to select the adjacent IVV of the current error vector. Then their position was determined. Hysteresis current control（HCC） or space vector modulation（SVM） two ways were used by this method to execute, and variable frequency or fixed frequency control could be achieved. Finally, the comparative experimental study illustrate the validity of this theory and the difference of the two methods.

关 键 词：三相PWM整流器 协调控制 电感电压矢量(IVV) 旋转坐标系 扇区旋转 矢量旋转 电流误差矢量 

分 类 号：TM461[电气工程—电器]