双逆变器的SVPWM研究  

The SVPWM Study of Double Inverter

作　　者：曹海洋[1] 姜子建[1] 冯思硕[1] 李探[1] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221006

出　　处：《电力电子技术》2014年第7期60-62,共3页Power Electronics

基　　金：中国矿业大学专项基金(JC126128)~~

摘　　要：双逆变器能产生等价于三电平逆变器的电压空间矢量输出,无需箝位,具有较好的容错性。在此采用60°坐标系下的空间矢量脉宽调制(SVPWM)算法,在Matlab/Simulink中针对双逆变器带阻感负载进行仿真,由电压波形可见,相电压具有三电平的特性。相电压输出实验波形呈现出较好的三电平特性,三相电流体现出较好的正弦性;结果表明,双逆变器取得了与三电平逆变器相同的效果,且无需控制中点。Double inverter can generate voltage space vector equivalent to the three-level inverter and does not require clamping, with a certain fault tolerance.Using the 60° coordinates of space vector pulse width modulaiton （SVPWM） algorithm in Matlab/Simulink and the double inverter with load of resistance and inductance, the phase voltage has characteristic of the three-level inverter.The experiment shows that the phase voltage has the same characteristic as the three-level inverter and the three-phase current has better sinusoidal waveform.The results show that double inverter can achieve the same effect as a three-level inverter and it does not need to control the midpoint.

关 键 词：逆变器 空间矢量脉宽调制 三电平 

分 类 号：TM464[电气工程—电器]