节点文献

用于三电平脉宽调制整流器中的虚拟磁链

Virtual flux in a three-level pulse width modulation rectifier

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 张颖超赵争鸣张永昌鲁挺袁立强

【Author】 ZHANG Yingchao1,2,ZHAO Zhengming1,ZHANG Yongchang1,LU Ting1,YUAN Liqiang1(1.State Key Laboratory of Power Systems,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;2.Chongqing Communication Institute,Chongqing 400035,China)

【机构】 清华大学电机工程与应用电子技术系电力系统国家重点实验室重庆通信学院

【摘要】 为实现无传感器控制,提高系统可靠性和降低成本,研发了三电平脉宽调制整流器中虚拟磁链的观测方法,给出基于虚拟磁链的三电平脉宽调制整流器无网侧电压传感器控制的两种典型应用。分析了应用虚拟磁链后系统启动容易出现过大的电流浪涌问题,提出虚拟磁链预计算和软启动控制策略。实验结果表明,该方法能够实现三电平脉宽调制整流器的无网侧电压传感器控制,并能降低系统启动电流约50%。

【Abstract】 Sensorless control gives higher reliability and economic benefits.This paper describes a method to calculate the virtual flux for a three-level pulse width modulation(PWM)rectifier.Then,two control strategies are given for a three-level pulse width modulation rectifier without power source sensors based on the virtual flux.Pre-calculation of the virtual flux and a soft-startup control scheme were used to reduce excessive surge currents during system startup.Experimental results show that the scheme can be easily applied to control a three-level pulse width modulation rectifier without power source voltage sensors,and that the startup current is reduced about 50% by the soft-start process.

  • 【文献出处】 清华大学学报(自然科学版) ,Journal of Tsinghua University(Science and Technology) , 编辑部邮箱 ,2009年01期
  • 【分类号】TM461
  • 【被引频次】8
  • 【下载频次】413
节点文献中: 

本文链接的文献网络图示:

本文的引文网络