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.
出处
《电工技术学报》
EI
CSCD
北大核心
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
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
Two stage matrix converter（TSMC）
grid side power factor
closed loop control
unity power factor
