基于Halbach阵列可控磁通电机的安全控制研究  

Research on Safety Control Based on Halbach Array Controllable-Flux Motor

作　　者：杨德良 王心坚[1] YANG De-liang;WANG Xin-jian(Tongji University,Shanghai 201804,China;Shanghai FCV Powertrain System Co. , Ltd. ,Shanghai 201804,China)

机构地区：[1]同济大学,上海201804 [2]上海燃料电池汽车动力系统有限公司,上海201804

出　　处：《微特电机》2018年第5期1-5,13,共6页Small & Special Electrical Machines

基　　金：国家重点基础研究发展计划项目(973计划)(2011CB711205)

摘　　要：针对新能源汽车的控制安全问题,研究了基于Halbach阵列可控磁通电机,采用三相对称短路法的安全控制策略。研究表明,三相对称短路对于基于Halbach阵列可控磁通电机,在中高速段直轴退磁电流符合电机磁通调节需求,具有有效的退磁作用,使得驱动电机由驱动状态向安全状态转变,获得较好的制动转矩抑制作用,并有效降低高速段反电动势,实现电机的安全控制。As to the control safety problem of new energy vehicles,a safety control strategy based on Halbach array structure controllable-flux motor and three-phase symmetrical short-circuit method was analyzed. The research showed that for the controllable-flux motor based on Halbach array,the three-phase symmetrical short circuit method could be used in the middle and high speed range. The demagnetization current in the direct axis conformed to the requirement of flux adjustment. With effective demagnetization,the driving motor was changed from a driving state to a safe state to obtain a better braking torque restraining effect. The back-EMF of the high speed section was effectively reduced and safe control of the motor was realized.

关 键 词：可控磁通 永磁同步电动机 三相对称短路 电安全 转矩安全 

分 类 号：TM351[电气工程—电机]