三相四线制地铁辅助逆变器控制策略研究  

Research on Control Strategy of Three-phase Four-wire Metro Auxiliary Converter

作　　者：陈杰[1] 刁利军[1] 朱恺[1] 杜会卿[1] 刘志刚[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《铁道学报》2012年第4期34-38,共5页Journal of the China Railway Society

基　　金："十一五"国家科技支撑计划(2006BAG02B00;2007BAA12B07)

摘　　要：为解决城市轨道交通辅助变流器负载不平衡问题,首先通过数学建模推导出三相四线制逆变器输出电压方程,进而以此为依据根据对称分量法得到一种简单有效的开环控制策略。为实现这种控制策略,应用三维空间矢量调制法,对其实现方法进行详细深入地探讨。通过理论分析这种控制策略,结合三维空间矢量调制法能够解决输出电压不平衡问题。用仿真对其进行验证,进一步论证了其正确性。To solve the problem of unbalanced loading of auxiliary converters in urban rail transit, the output voltage equations of the three-phase four-wire inverter were derived from the inverter model and on this basis the new, simple and effective open-loop control strategy was set up with the symmetrical component method. The method to implement the control strategy was investigated deeply by applying three-dimensional space vector modulation. Theoretical analysis indicates that the control strategy and the modulation method may com- bine to solve the problem of unbalancing of output voltages. This was verified by simulation.

关 键 词：城市轨道交通 辅助变流器 三相四线制 三维空间矢量调制法 电压不平衡 

分 类 号：TM46[电气工程—电器]