兵工自动化2015，Vol.34Issue(7)：47-51,5.DOI:10.7690/bgzdh.2015.07.011
一种改进的过调制方法用于矩阵变换器驱动感应电机仿真研究
Simulation Research of Applying An Improved Over-modulation Method in Matrix Converter Drive Induction Motor
摘要
Abstract
The maximum voltage transfer ratio (VTR) in linear region with traditional space vector pulse width modulation of matrix converter (MC) is 0.866, which strictly restrains its application, especially in AC adjustable-speed control. To improve the VTR and decrease output voltage total harmonic distortion (THD) of MC, an improved multi-orbit vector weighter over-modulation method is proposed. The over-modulation principal before and after the improved multi-orbit vector weighter method are introduced and the output voltage THD before and after the improved over-modulation method are analyzed, the analysis indicates that the improved over-modulation method has lower output voltage THD. The adjustable-speed control performances of induction motor driven by matrix converter with the improved multi-orbit vector weighter over-modulation before and after are emulated. Emulated results indicate that the improved over-modulation method has better performances of speed-control and lower THD of output voltage.关键词
多轨迹矢量/矩阵变换器/调速性能/谐波畸变率/改进过调制Key words
multi-orbit vector weighter/matrix converter/speed-adjustable performance/total harmonic distortion/improved over-modulation分类
信息技术与安全科学引用本文复制引用
张晓锋,夏益辉,宋继忠,董银文..一种改进的过调制方法用于矩阵变换器驱动感应电机仿真研究[J].兵工自动化,2015,34(7):47-51,5.基金项目
国家自然科学基金资助项目(51277177) （51277177）
