基于虚拟电网磁链定向的电压型PWM变换器研究  

Research on voltage source PWM converter based on virtual line flux oriented

作　　者：宋小亮[1] 李杰[1] 蔚兰[1] 郭国富[2] 牛华荣 

机构地区：[1]上海大学机电工程与自动化学院 [2]中国人民解放军73857部队54分队 [3]上海三菱电梯有限公司

出　　处：《电气传动自动化》2009年第6期1-6,共6页Electric Drive Automation

摘　　要：为了简化电压型PWM变换器采样电路的复杂程度,提高其抗扰动性能及降低成本,研究了一种基于虚拟电网磁链定向的电压型PWM变换器网侧无电网电压传感器控制策略,给出了一种虚拟磁链观测器误差补偿方法。仿真结果表明系统有很好的控制性能,给出的误差补偿方法可以很好地解决虚拟磁链定向时的稳态误差问题。In order to simplify the complexity of sample circuit in voltage source PWM converter,to improve its anti-disturb ability and to decrease the cost,the control strategy of AC voltage sensorless voltage source PWM converter based on virtual line flux oriented is analyzed.An error compensation method for virtual flux observer is also provided.The simulation result shows that the system has good control performance and this proposed error compensation method can well solve this problem.

关 键 词：PWM变换器 虚拟电网磁链 无电压传感器 误差补偿 

分 类 号：TM46[电气工程—电器]