一种控制中点电位并消除窄脉冲的三电平PWM方法  

A THREE-LEVEL PWM METHOD OF NEUTRAL-POINT BALANCING AND NARROW- PULSE ELIMINATION

作　　者：金舜[1] 钟彦儒[1] 明正峰[1] 王建渊[1] 

机构地区：[1]西安理工大学自动化学院,陕西西安710048

出　　处：《中国电机工程学报》2003年第10期114-118,共5页Proceedings of the CSEE

摘　　要：该文介绍了一种虽然简洁却很有效的三电平SVPWM算法。在此基础上,该文提出一种无电流传感器的中点电位控制和窄脉冲消除方法。仿真和实验结果表明,该方法实现非常简单,且输出波形谐波含量小,中点电位得到很好的控制,同时较好地解决了窄脉冲问题。在用TMS320LF2407 DSP为开发平台的三电平实验样机上取得了良好的效果。This paper introduced a simple but effective three-level SVPWM algorithm. On the basis of the method, a simple neutral-point balancing and narrow-pulse elimination algorithm without current sensor is developed. The result of simulation and test verifies that the algorithm is very simple to be carried out, harmonics in output waveform are small, neutral-point potential can be under good control, and narrow-pulse problem is solved as well. Finally, good result is achieved on a three-level model inverter developed with TMS320LF2407 DSP .

关 键 词：三电平逆变器 三电平SVPWM算法 中点电位 窄脉冲 

分 类 号：TM464[电气工程—电器]