基于空间解耦SVPWM7相感应电机调速系统  

Seven-phase Induction Motor Adjust-speed System with Space Decomposition SVPWM

作　　者：郭冀岭[1] 肖建[1] 罗鹏[1] 邱忠才[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电气传动》2014年第4期30-33,共4页Electric Drive

基　　金：中央高校专项资金资助项目(SWJTU11BR040)

摘　　要：基于多相系统空间解耦模型,构建了7相感应电机模型;针对谐波问题,通过调整矢量作用顺序和时间,提出了A、B两种SVPWM调制方法;A法为尽量减小3次谐波子空间合成矢量的消除了3次谐波的SVP-WM,B法为同时减小3次和5次谐波子空间合成矢量的消除3次和5次谐波的SVPWM;在对7相感应电机仿真分析基础上,设计并实现了以TMS320F28335为控制核心的7相感应电机调速平台,仿真和试验结果验证了电机模型及SVPWM算法的正确性和有效性。Based on the spatial decomposition model of multi-phase system,the 7-phase IM model was constructed.To eliminate the harmonic components of stator currents,two SVPWM method were proposed.SVPWM A,which makesthe compositive vector be zero in the 3rd sub-space,could reduce 3rd harmonic component. While SVPWM B couldreduce 3rd and 5th harmonic component at the same time using similar methods.Finally a 7-phase IM adjust-speedplatform was realized with DSP core TMS320F28335,the simulation and experiment results verify the correctness ofthe model and SVPWM methods.

关 键 词：7相感应电机 空间解耦 空间矢量脉宽调制 消除谐波 

分 类 号：TM343[电气工程—电机]