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首页 > 过刊浏览>2021年第53卷第3期 >425-434. DOI:10.16356/j.1005-2615.2021.03.014
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基于场路耦合方法的永磁同步电机温度场研究
作者:
作者单位:

安徽工程大学汽车新技术安徽省工程技术研究中心，芜湖 241000

通讯作者:

时培成，男，教授，E-mail：shipeicheng@126.com。

中图分类号:

TM341

基金项目:

国家自然科学基金（51575001）资助项目；安徽高校科研平台创新团队建设项目（2016-2018）资助项目；安徽省新能源汽车产业发展创新支持项目（2020WF071）资助项目。


Temperature Field of Permanent Magnet Synchronous Motor Based on Coupled Field-Circuit
Author:
Affiliation:

Automotive New Technology Anhui Engineering and Technology Research Center ， Anhui Polytechnic University， Wuhu 241000， China

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    摘要:

    针对永磁同步电机温度场精确求解问题，提出了一种场路耦合法来计算电机的温度场。以一台永磁同步电机为研究对象，利用MATLAB/Simulink搭建电机的控制策略，再通过有限元分析软件ANSYS Maxwell和ANSYS Simplorer搭建电机的二维电磁场模型和控制电路模型组成场路耦合模型。基于场路耦合模型计算电机的损耗，并将损耗导入到电机的三维磁热耦合模型中，观测电机在基速工况和弱磁范围内温度场的变化。通过样机实验测试，验证了该方法的精确度，为精确求解电机的温度场提供了依据。

    Abstract:

    In order to accurately obtain the temperature field of permanent magnet synchronous motor， we propose a field-circuit coupling method. This study takes a permanent magnet synchronous motor as the research object， uses MATLAB/Simulink to build the control strategy of the motor， and then deploys the finite element analysis software ANSYS Maxwell and ANSYS Simplorer to build the two-dimensional electromagnetic field model and control circuit model of the motor to form the field-circuit coupling model. The field-circuit coupling model calculates the loss of the motor， and imports the loss into the three-dimensional magneto-thermal coupling model of the motor. Thus， the change of the temperature field of the motor can be observed in the base speed and weak field. The prototype test verifies the accuracy of the method. This method provides a basis for accurate calculation of the temperature field for motors.

    表 1 电机参数Table 1 Motor parameters
    图1 永磁同步电机二维电磁场仿真模型Fig.1 Simulation model of two-dimensional electromagnetic field of permanent magnet synchronous motor
    图2 在ANSYS Simplorer中搭建的场路耦合联合仿真模型Fig.2 Co-simulation model of field-circuit coupling built in ANSYS Simplorer
    图3 内置式永磁同步电机定子电流矢量轨迹Fig.3 Stator current vector trace of built-in permanent magnet synchronous motor
    图4 永磁同步电机弱磁控制模块Fig.4 Weakening control module for permanent magnet synchronous motor field
    图5 MTPA和弱磁控制转换框图Fig.5 MTPA and field weakening control conversion block diagram
    图6 永磁同步电机控制策略Fig.6 Motor control strategy for permanent magnet synchronous
    图7 永磁同步电机磁热耦合仿真模型Fig.7 Magneto-thermal coupling simulation model of permanent magnet synchronous motor
    图8 电机场路耦合温度场仿真流程图Fig.8 Simulation flow chart of electric coupling temperature field
    图9 基速工况下电机整体温度场变化Fig.9 Changes in the overall temperature field of the motor under base speed conditions
    图11 弱磁范围内电机整体温度场变化Fig.11 Changes in the overall temperature field of the motor in the field weakening range
    图13 基速工况和弱磁范围电机的温度变化曲线Fig.13 Temperature change curves of the field weakening range motor under base speed operating conditions
    图14 电机台架Fig.14 Motor stage
    图15 基速工况和弱磁范围内电机仿真与实验的温度曲线图Fig.15 Temperature curves of motor simulation and experiment in the base speed operating condition and the field weakening range
    图1 Schematic diagram of calculation of line segment informationFig.1
    图2 Simulation results of improved line segment extraction algorithmFig.2
    图3 Error extraction in the traditional algorithm where the edge is too wideFig.3
    图4 Error in extracting line segment breaks in traditional algorithmsFig.4
    图5 Error extraction in traditional algorithm where curve is defined as line segmentFig.5
    图6 Schematic diagram of combined featuresFig.6
    图7 Combined features obtained by directly searching for every three straight linesFig.7
    图8 Combined feature map obtained by Delaunay triangulationFig.8
    图9 Schematic diagram of error analysisFig.9
    图10 Curve of error function ε-ΔFig.10
    图11 Flow chart of proposed algorithmFig.11
    图12 Matching results of optical imageFig.12
    图13 Matching results of synthetic aperture radar imageFig.13
    图14 Matching result when image has a 3° rotationFig.14
    图15 Feature quantity comparison of three algorithmsFig.15
    表 3 电机材料导热系数Table 3 Thermal conductivity of motor materials
    表 4 基速工况下和弱磁范围内电机的温度Table 4 Temperatures of the motor at the base speed and in the field weakening range
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时培成,夏仙阳,陈晨,张荣芸.基于场路耦合方法的永磁同步电机温度场研究[J].南京航空航天大学学报,2021,53(3):425-434

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  • 收稿日期:2020-07-14
  • 最后修改日期:2020-12-29
  • 在线发布日期: 2021-06-05
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