双级矩阵变换器的网侧功率因数  

Investigation on Grid Side Power Factor of Two Stage Matrix Converter

作　　者：刘晓宇[1] 周波[1] 秦显慧[1] 史明明[1] 

机构地区：[1]南京航空航天大学江苏省新能源发电与电能变换重点实验室,南京市210016

出　　处：《电工技术学报》2012年第12期71-78,128,共9页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51177069);江苏省创新学者攀登计划(BK2009019);江苏省六大人才高峰资助项目

摘　　要：通过建立双级矩阵变换器数学模型,得到了网侧功率因数角的解析表达式,着重探讨了系统各参数对网侧功率因数的影响,得出了18开关双级矩阵变换器网侧功率因数可调范围受系统参数影响的结论,通过仿真试验表明了理论分析的正确性。为解决双级矩阵变换器输入功率因数不为1的问题,提出了网侧功率因数闭环控制方法,解决了目前网侧功率因数无法实现动态补偿的问题,使网侧功率因数在系统参数变化时仍然保持为单位功率因数,最后通过实验表明该方法的可行性与有效性。In this paper,the analytical expression of grid side power factor based on establishment of the mathematical model of two stage matrix converter is yielded.It is focused on the influences of system parameters on the grid side power factor,which draws the conclusion that the adjustable range of grid side power factor of 18 switches TSMC depends on the system parameters.Simulation examples are given to illustrate the correctness of the conclusion.To deal with the problem of non-unity power factor,a new control method of grid side power factor is presented,which realizes closed-loop control and achieves dynamic compensation of grid side power factor.This new control method ensures the grid side power factor maintains unity power factor while the system parameters change.Experimental results demonstrate the feasibility and validity of this method.

关 键 词：双级矩阵变换器 网侧功率因数 闭环控制 单位功率因数 

分 类 号：TM92[电气工程—电力电子与电力传动]