一种新颖的同时考虑中点电位平衡和窄脉冲消除及死区补偿的三电平空间电压矢量脉宽调制方法(英文)  

A NOVEL THREE-LEVEL SVPWM ALGORITHM CONSIDERING NEUTRAL-POINT CONTROLAND NARROW-PULSE ELIMINATION AND DEAD-TIME COMPENSATION

作　　者：金舜[1] 钟彦儒[1] 

机构地区：[1]西安理工大学自动化学院电气工程系,陕西省西安市710048

出　　处：《中国电机工程学报》2005年第6期60-66,共7页Proceedings of the CSEE

摘　　要：该文引进了一种简洁高效的三电平 SVPWM 算法。在此基础上,提出一种中点电位控制和窄脉冲消除方法,同时进行了死区的补偿。仿真和实验结果表明,该方法实现简单,输出波形谐波含量小,中点电位得到很好的控制,并较好地解决了窄脉冲问题。同时由于进行了死区补偿,使逆变器在低频输出时波形明显改善,提高了系统在低频时的转矩输出。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 introduces a simple but effective three-level SVPWM algorithm. On the basis of this algorithm, a simple algorithm considering neutral-point balancing, narrow-pulse elimination and dead-time compensation is proposed. The result of test verified that this algorithm is simple to be carried out, harmonics in output waveform are small, neutral-point potential can be controlled very well and narrow-pulse problem is solved as well. Because dead time is compensated at the same time, the output waveform is improved and output torque is strengthened in low frequency. Finally, good result was achieved on a three-level model inverter developed with one TMS320LF2407 DSP.

关 键 词：死区补偿 空间电压矢量 三电平 窄脉冲 调制方法 TMS320LF2407 SVPWM算法 脉宽 平衡 新颖 中点电位控制 消除方法 谐波含量 输出波形 实验样机 开发平台 逆变器 DSP 低频 转矩 

分 类 号：TM464[电气工程—电器] TM46