电压型三相逆变器定频滞环电流控制新策略  

A Novel Current Control Method for Voltage-source Three-phase Inverter with Constant Switch Frequency

作　　者：张竹[1] 张代润[1] 何易桓[1] 王超[1] 

机构地区：[1]四川大学

出　　处：《变频器世界》2009年第4期39-41,共3页The World of Inverters

摘　　要：本文提出了电压型三相逆变器定频滞环控制一种新方法。该方法主要根据直流侧电源电压、电动机反馈电动势和参考电流信号波形的微分改变滞环电流宽度,实现开关频率的稳定。该方法的特点是不需要增加额外的模拟电路,完全数字化控制。使用Matlab仿真,仿真结果证明了该方法对电压型三相逆变器定频控制是有效可行的。A novel constant switching frequency hysteresis current control technique for voltage-source three-phase inverter is proposed in this paper. The algorithm changes hysteresis band according to dc supply voltage, motor back electrical force and slope of reference current wave to realize the fixed switching frequency. The characteristic of the method is absolutely digital controlling without extra analog circuit. This method for voltage-source three-phase inverter current control with fixed switching frequency is verfied effective and feasible by simulation results of Matlab.

关 键 词：电压型三相逆变器 定频滞环控制 滞环带宽 

分 类 号：TM464[电气工程—电器]