双凸极永磁双转子电机优化设计与电磁特性分析
发布时间：2018-09-02 08:00
【摘要】：混合动力汽车(hybrid electric vehicles,HEVs)用新型双凸极永磁双转子电机(double-salient permanent-magnet double-rotor motor,DSPM-DRM)具有两个转子和两层气隙的特殊结构。针对该复杂电机结构,为获得低输出转矩波动和高转矩密度,提出了DSPM-DRM的一种优化设计方法,推导DSPM-DRM的电机尺寸公式,得到初始设计尺寸,建立了DSPM-DRM的参数化模型。以减小输出转矩波动和提高转矩密度为目标,选择气隙和永磁体充磁宽度、极弧等关键尺寸参数作为优化变量,采用遗传控制算法(genetic algorithm,GA)优化调整电机尺寸,设计并制造了一台额定功率为2 kW的实验样机。基于二维有限元法对DSPM-DRM的反电动势、永磁磁链、气隙磁密、定位力矩等电磁特性进行了计算和分析,样机实验结果验证了设计方法和理论分析的正确性,所得结论可以为该电机在HEVs动力混合装置中的应用提供参考。
[Abstract]:A novel doubly salient permanent magnet double rotor motor (double-salient permanent-magnet double-rotor motor,DSPM-DRM) with two rotors and two layers of air gap is used in hybrid electric vehicle (hybrid electric vehicles,HEVs). In order to obtain low output torque ripple and high torque density, an optimal design method of DSPM-DRM is proposed. The size formula of DSPM-DRM motor is derived, the initial design size is obtained, and the parameterized model of DSPM-DRM is established. Aiming at reducing the output torque ripple and increasing the torque density, the key dimension parameters such as air gap, permanent magnet magnetization width, pole arc and so on are selected as optimization variables. Genetic control algorithm (genetic algorithm,GA) is used to optimize and adjust the motor size. An experimental prototype with rated power of 2 kW was designed and manufactured. Based on the two-dimensional finite element method, the electromagnetic characteristics of DSPM-DRM, such as backEMF, permanent magnetic flux, air gap magnetic density and positioning torque, are calculated and analyzed. The experimental results of the prototype verify the correctness of the design method and the theoretical analysis. The conclusion can provide reference for the application of the motor in HEVs power mixing device.
【作者单位】： 江苏大学电气学院;
【基金】：国家自然科学基金项目(51077067,51177065) 教育部博士点基金(20113227110002) 江苏省自然科学基金项目(BK2011475) 江苏省高校优势学科建设工程资助项目~~
【分类号】：TM351
[Abstract]:A novel doubly salient permanent magnet double rotor motor (double-salient permanent-magnet double-rotor motor,DSPM-DRM) with two rotors and two layers of air gap is used in hybrid electric vehicle (hybrid electric vehicles,HEVs). In order to obtain low output torque ripple and high torque density, an optimal design method of DSPM-DRM is proposed. The size formula of DSPM-DRM motor is derived, the initial design size is obtained, and the parameterized model of DSPM-DRM is established. Aiming at reducing the output torque ripple and increasing the torque density, the key dimension parameters such as air gap, permanent magnet magnetization width, pole arc and so on are selected as optimization variables. Genetic control algorithm (genetic algorithm,GA) is used to optimize and adjust the motor size. An experimental prototype with rated power of 2 kW was designed and manufactured. Based on the two-dimensional finite element method, the electromagnetic characteristics of DSPM-DRM, such as backEMF, permanent magnetic flux, air gap magnetic density and positioning torque, are calculated and analyzed. The experimental results of the prototype verify the correctness of the design method and the theoretical analysis. The conclusion can provide reference for the application of the motor in HEVs power mixing device.
【作者单位】： 江苏大学电气学院;
【基金】：国家自然科学基金项目(51077067,51177065) 教育部博士点基金(20113227110002) 江苏省自然科学基金项目(BK2011475) 江苏省高校优势学科建设工程资助项目~~
【分类号】：TM351
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