无电压传感器的PWM整流器比例谐振控制研究  

Research on Proportional Resonance Control of Voltage Sensorless PWM Rectifier

作　　者：时维国[1] 刘晨 SHI Wei-guo;LIU Chen(Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学,大连116028

出　　处：《微特电机》2019年第2期69-71,75,共4页Small & Special Electrical Machines

摘　　要：针对无电网电压传感器的PWM整流器虚拟磁链估算中存在的直流漂移问题,研究了一种新的磁链估算方法,即在积分后面加入改进的二阶广义积分环节,良好地解决了直流漂移问题。采用电压外环PI控制,电流内环PR控制,简化了繁琐的坐标变化和解耦环节,仿真结果证明了该方案的可行性。In the light of the PWM rectifier power grid voltage sensorless dc drift problems in virtual flux estimation,a new method of flux estimation is put forward,that behind the remaining points to join improving second-order generalized integral link,good solve the problem of the dc drift.At the same time,this article uses the voltage loop PI control,the current inner loop PR control.Simplify the tedious coordinate transformation and decoupling link.The experimental results show the feasibility of the scheme.

关 键 词：PWM整流器 虚拟磁链 二阶广义积分 比例积分控制 比例谐振控制 

分 类 号：TM351[电气工程—电机]