A Novel Over Modulation Strategy for Two-Stage Matriz Converter
A lot of research has been made on space vector modulation (SVM) strategy of matrix converter, but research on over modulation strategy of MC is almost blank. This paper analyzed conventional control theory of two-stage matrix converter, derived voltage transmission characteristic, then presented an over modulation method, which covered the entire over modulation range. The method was divided into two steps. The rectifier side was first separated into six intervals to get the maximum DC voltage, and then a novel over modulation strategy was invented for the inverter side, which effectively enhanced voltage transfer ratio to 1.05 with good linearity. At last, the method was extensively investigated with matlab under both output voltage and spectrum wave. Theoretical analysis and simulation results showed that the over modulation methodology proposed in this paper was feasible and liable.
two-stage matriz converter simulation voltage transfer ratio
Zhiyong Li Xiangdong Kong Xiaoying Li
Changsha University of Science & Technology Changsha 410076,Hunan Province,China
国际会议
长沙
英文
1561-1564
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）