微特电机 ›› 2018, Vol. 46 ›› Issue (5): 1-5.doi: 1004-7018-46-5-1-5

• 理论研究 •    下一篇

基于Halbach阵列可控磁通电机的安全控制研究

杨德良1,2,王心坚1   

  1. 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
  • 收稿日期:2017-12-25 出版日期:2018-05-28 发布日期:2018-05-28
  • 作者简介:杨德良(1976—),男,硕士,电机控制工程师,主要从事新能源汽车电机驱动及控制的研究工作。
  • 基金资助:
    国家重点基础研究发展计划项目(973计划)(2011CB711205)

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

YANG De-liang1,2, WANG Xin-jian1   

  1. 1. Tongji University,Shanghai 201804,China
    2. Shanghai FCV Powertrain System Co., Ltd.,Shanghai 201804,China
  • Received:2017-12-25 Online:2018-05-28 Published:2018-05-28

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。

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

Abstract:

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.

Key words: controllable-flux, permanent magnet synchronous motor (PMSM), three-phase symmetrical short circuit, electrical safety, torque safety

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