永磁同步牵引电机高速运行时再生制动研究  

Research on Regenerative Braking Condition of Permanent Magnet Synchronous Traction Motor at High-speed

作　　者：杜玉亮 DU Yu-liang(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所 [2]北京纵横机电科技有限公司

出　　处：《电力电子技术》2019年第11期30-33,49,共5页Power Electronics

基　　金：中国铁路总公司科技研究开发计划(2016J011-E)~~

摘　　要：列车为防止在中性区趴窝,一般以较高速度驶入中性区。为确保辅助系统在中性区不断电,牵引电机需在高速区快速由牵引工况转换为再生制动工况。这里分析了永磁同步牵引电机高速区弱磁控制原理,给出了基于负直轴电流补偿弱磁控制框图,研究了列车进出中性区时永磁同步牵引电机交直轴电流工作区域。基于负直轴电流补偿弱磁控制策略研究了同步旋转d,q坐标系前馈/反馈解耦比例积分(PI)电流调节器和d,q坐标系复矢量电流调节器的控制器在高速弱磁区的再生制动性能。理论分析和仿真结果验证了d,q坐标系复矢量电流调节器在高速弱磁区具有更优异的控制性能。In order to prevent be stalling in neutral section,train usually drives into neutral section at high-speed.Auxiliary system can be guaranteed uninterruptible power supply at neutral section with switching to regenerative braking condition from traction condition.Field-weakening control principle of permanent magnet synchronous traction motor at high speed section is analyzed,field-weakening control block diagram based on negative direct axis current is given,and working areas of quadrature and direct axis current of permanent magnet synchronous traction motor when the train enters and exits the neutral section are studied.Performances of regenerative braking condition are studied at high-speed field-weakening section of controller with proportional integral(PI)current regulator in synchronization reference d,q frame and complex-vector current regulator in frame based on negative direct axis current fieldweakening control strategy.Theoretical analysis and simulation results verify complex-vector current regulator in d,q frame has better control performance at high-speed field-weakening section.

关 键 词：永磁同步牵引电机 弱磁控制 再生制动 电流调节器 

分 类 号：TM351[电气工程—电机]