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汽车安全与节能学报

汽车安全与节能学报 ›› 2011, Vol. 2 ›› Issue (3): 250-256.DOI: 10.3969/j.issn.1674-8484.2011.03.011

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基于特征电流与定子饱和参数的IPM同步电机性能估算

张舟云1，师 蔚2，贡 俊1，应红亮1   

  1. 1. 上海电驱动有限公司 技术中心，上海200240； 2. 上海工程技术大学 轨道交通学院，上海201620
  • 收稿日期:2011-04-26 出版日期:2011-09-27 发布日期:2011-10-13
  • 作者简介:第一作者： 张舟云（1977—），男（汉），江西，高级工程师 E-mail: zzy@chinaedrive.com
  • 基金资助:

    基金项目： 国家 “八六三”电动汽车重大专项（2008AA11A108）

Evaluation of IPMSM Performance Based on the Characteristic Current and Saturated Stator Parameters

ZHANG Zhouyun 1, SHI Wei 2, GONG Jun 1, YING Hongliang 1   

  1. 1. Technique Center of Shanghai Edrive Co., Ltd., Shanghai, 200240, China;
    2. School of Urban Railway Transit, Shanghai University of Technology and Engineering, Shanghai 201620, China
  • Received:2011-04-26 Online:2011-09-27 Published:2011-10-13
  • About author:First author：ZHANG Zhouyun(1977—),Senior Engineer,E-mail:zzy@chinaedrive.com
  • Supported by:

    Supported by： National “863” Project on Electric Vehicle    （2008AA11A108）

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摘要：  磁钢内置式永磁同步电机(IPMSM)由于其低速大出力、高速恒功率、宽调速、高效率等优越性能，可广泛应用于电动汽车传动系统等领域。由于磁场的饱和效应，使得IPMSM输出能力在高速情况下迅速降低。该文提出一种采用特征电流与定子饱和参数来精确评估IPMSM输出能力的方法。IPMSM在低速时采用最大转矩电流比(MTPA)控制，在高速时采用恒功率弱磁控制，实现电机宽调速、高效率性能，其输出性能可通过调整特征电流与功率模块最大可用电流的关系来进行调节。对不同样机的仿真与试验结果表明，该评估方法的估算精度高。

关键词:  磁钢内置式永磁同步电机(IPMSM), 特征电流, 饱和参数, 最大转矩电流比(MTPA)

Abstract:  Interior permanent magnet synchronous motors (IPMSM) can be widely used in the transmission system of electric vehicles (EVs), which take the advantages of high output torque at low speed, high constant output power at high speed, and high efficiency. Since the magnetic field of IPMSM is designed to be saturated, which makes the output capacity of IPMSM sharply decreases in the high speed range. A method was developed to evaluate the performance of a series of IPMSM using the characteristic current and saturated stator parameters. The method takes maximum torque per Ampere (MTPA) strategy to achieve constant torque control at low speed and constant power speed ratio strategy to achieve constant power control at high speed to meet the requirement of electric vehicles, with output performance of IPMSM regulated by changing the values of the characteristic current compared with the current rates of the power module. Comparative simulation and test results using different prototypes with different parameters validate the accuracy and applicability of the method.

Key words: Interior permanent magnet synchronous motor (IPMSM), characteristic current, saturated parameters, maximum torque per Ampere (MTPA)

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