AC-DC矩阵变换器空间矢量优化调制模式研究  

Optimized Space Vector Modulation Patterns of AC-DC Matrix Converters

作　　者：冯波[1] 林桦[1] 王兴伟[1] 安星[1] 

机构地区：[1]强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市430074

出　　处：《中国电机工程学报》2012年第33期7-14,169,共8页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973项目)(2010CB227206);湖北省自然科学基金项目(2009CDB413)~~

摘　　要：为减小输出电感电流纹波和窄脉冲,对AC-DC矩阵变换器空间矢量调制模式的优化进行深入研究。根据AC-DC矩阵变换器原理及工作模式得到输出电感电流纹波表达式及特性,分析7种调制模式零矢量与电流纹波最大幅值的关系,提出减小电流纹波的零矢量优化方法;考虑换流过程,分析不同调制模式窄脉冲条件和几率;为减小电感电流纹波和窄脉冲,提出一种分段优化调制模式,以实现输出电压全范围调节,改善输入输出波形质量。仿真和实验验证了本文的结论,表明了提出的优化调制策略的正确性。The space vector modulation pattern of AC-DC matrix converters was intensively studied in this paper in order to reduce output inductor current ripple and narrow pulse.The expression and characteristic of inductor current ripple were derived based on the principle and operation modes of AC-DC matrix converters,the relationship between zero vectors and maximum magnitude of current ripple for seven modulation patterns was analyzed,then the ripple reduction zero vector configuration method was proposed.Considering commutation process,the probabilities of narrow pulse for different modulation patterns were analyzed.A sectional optimized modulation strategy was presented to reduce current ripple and narrow pulse,which can achieve full range output regulation and improve input/output waveforms quality.Simulations and experimental results verified the conclusions and the validity of the optimized strategy.

关 键 词：AC-DC矩阵变换器 空间矢量调制 电感电流纹波 窄脉冲 调制模式 

分 类 号：TM46[电气工程—电器]