摘要
作为传统六开关逆变器故障后的重构拓扑和低成本逆变器,三相四开关逆变器具有重要的研究和应用价值。对四开关逆变器的空间矢量脉宽调制(SVPWM)控制方法进行了研究,提出了低开关频率"七段式"四开关SVPWM(FS-SVPWM)算法,揭示了FS-SVPWM实质是以两路相位相差π/3电角度的正弦波为隐含调制函数的SPWM控制,为FS-SVPWM提供了简单的等效实现方法。仿真和实验结果证明了理论分析的正确性和算法的有效性。
The three-phase four-switch inverter has significant research and application values as a post-fault topology for traditional six-switch one and a low cost inverter.Space vector pulse width modulation（SVPWM）for four-switch inverters is studied.The implement method of seven-segment mode four-switch SVPWM（FS-SVPWM）with low switch frequency is presented.And this paper indicates that FS-SVPWM is actually a SPWM using a triangle wave and two dormant sine waves whose phases separate π/3 electrical angle.So a simple and equivalent implement method of FS-SVPWM can be achieved by the conclusion.The simulation and experimental results illustrate the validity and efficiency of theoretic analysis and the proposed algorithm.
出处
《电力电子技术》
CSCD
北大核心
2010年第8期44-46,共3页
Power Electronics
基金
黑龙江省自然科学基金项目(E200625)
哈尔滨市科技创新人才研究专项基金项目(RC2007XK007004)~~
关键词
逆变器
空间矢量脉宽调制
低开关频率
调制函数
inverter
space vector pulse width modulation
low switch frequency
modulation function
