Optimised Reference Wave Generation Method for Cell-Fault Treatment of Cascaded Inverter

摘要：

To increase the fault tolerance for cascaded H-bridge inverter, an optimised reference waveforms generation method is proposed for cell-fault treatment of cascaded H-bridge inverter. The optimised reference waveforms were obtained by normalization of the unbalanced phase voltage fundamental, and which were used to replace the sine wave reference signals in pulse width modulation process to improve the voltage utilization. Compared with conventional control methods, this method generates balanced line to line voltage with a higher magnitude in most fault modes; the reliability of the system is then enhanced. The simulation results agree with the theoretical analysis.

关键词： cascaded H-bridges multilevel inverter fault reference waveform.

作者: Yi Zang Hongge Sun Tiejun Zhao Xiaoli Li

作者单位: Henan University of Technology,Zhengzhou 450007,Henan Province,China China Coal Beijing Coal Mining Machinery CO.,LTD,Beijing,102400,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 4201-4205

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）