电力系统保护与控制Issue(21)：105-109,5.
基于虚拟磁链定向的PWM整流器控制方法研究
Research on control method of PWM rectifier based on virtual flux orientation
摘要
Abstract
Based on the grid voltage vector orientation (VOC), considering the similarity of PWM rectifier circuit structure and the structure of AC motors, this paper uses AC motors similar flux observation method, constructs virtual grid flux vector control as directed, and establishes a common virtual grid magnetic chain orientation (VFOC) of double-loop vector control system. Compared with the traditional VOC program, VFOC program can save AC grid voltage sensor, which can both save space and reduce costs. In order to solve the effect of the deviation of initial value on the control effect in the virtual grid flux observation process, it proposes an anti-windup initial value observation approach, which can effectively solve the error of the virtual grid flux observer due to initial value. Experimental verification using VFOC can achieve unity power factor PWM rectifier control, and the controller has better static stability and dynamic speediness.关键词
无传感器/虚拟电网磁链/矢量控制/PWM整流器/VOCKey words
sensor-less/virtual line-flux-linkage/vector control/PWM rectifier/VOC分类
信息技术与安全科学引用本文复制引用
侯兆然..基于虚拟磁链定向的PWM整流器控制方法研究[J].电力系统保护与控制,2014,(21):105-109,5.基金项目
河南省教育厅自然科学基金（13A520754）；许昌学院校内科研基金 （）
