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采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法

张文港 张小平

张文港,张小平. 采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法[J]. 机械科学与技术,2024,43(5):858-864 doi: 10.13433/j.cnki.1003-8728.20220265
引用本文: 张文港,张小平. 采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法[J]. 机械科学与技术,2024,43(5):858-864 doi: 10.13433/j.cnki.1003-8728.20220265
ZHANG Wen'gang, ZHANG Xiaoping. A Method for Direct Instantaneous Torque Control of Switched Reluctance Motor Using Variable Hysteresis Pulse Width Modulation[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(5): 858-864. doi: 10.13433/j.cnki.1003-8728.20220265
Citation: ZHANG Wen'gang, ZHANG Xiaoping. A Method for Direct Instantaneous Torque Control of Switched Reluctance Motor Using Variable Hysteresis Pulse Width Modulation[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(5): 858-864. doi: 10.13433/j.cnki.1003-8728.20220265

采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法

doi: 10.13433/j.cnki.1003-8728.20220265
基金项目: 湖南省自然科学省市联合基金项目(2021JJ50123)
详细信息
    作者简介:

    张文港,硕士研究生,1802918497@qq.com

    通讯作者:

    张小平,教授,博士生导师,博士,zxp836@163.com

  • 中图分类号: TM352

A Method for Direct Instantaneous Torque Control of Switched Reluctance Motor Using Variable Hysteresis Pulse Width Modulation

  • 摘要: 针对基于传统直接瞬时转矩控制的开关磁阻电机因采用固定滞环控制而存在转矩脉动仍然较大的问题,提出一种基于变滞环PWM的直接瞬时转矩控制方法。通过确定开关磁阻电机各相对应的工作区间,建立各区间相应的滞环函数并对函数中各参数进行优化,根据所得优化后的滞环函数及开关磁阻电机当前转子位置角以及相应的转矩偏差,提出采用变滞环PWM控制方法对其功率变换电路中相应功率开关进行控制,以达到对其转矩脉动进行抑制的目的,最后对其效果进行了仿真验证,同时与传统基于固定滞环的直接瞬时转矩控制方法进行了对比分析,结果表明:该方法不仅显著降低了开关磁阻电机的转矩脉动,而且有效提高了其运行效率,因而具有较好的应用价值。
  • 图  1  基于DITC的SRM控制系统原理

    Figure  1.  Principles of SRM control system based on DITC

    图  2  相绕组工作状态

    Figure  2.  Working state of phase winding

    图  3  开关磁阻电机相工作区间示意图

    Figure  3.  Switched reluctance motor phase working range

    图  4  开关磁阻电机半个电周期的矩角特性示意图

    Figure  4.  Torque-angle characteristics of switched reluctance motor in half electric cycle

    图  5  滞环函数模型示意图

    Figure  5.  Hysteresis function model

    图  6  基于变滞环PWM的SRM控制系统原理

    Figure  6.  Principles of SRM control system based on variable hysteresis PWM

    图  7  变滞环PWM控制示意图

    Figure  7.  Variable hysteresis PWM control

    图  8  两种控制方法对应的转矩波形

    Figure  8.  Torque waveforms corresponding to the two control methods

    表  1  开关磁阻电机主要参数

    Table  1.   Main parameters of switched reluctance motor

    参数 数值
    定、转子极数 12/8
    额定功率 2.2 kW
    额定电压 270 V
    定子极弧角 15°
    转子极弧角 16°
    下载: 导出CSV

    表  2  滞环函数中各参数的最优取值

    Table  2.   Optimal value of each parameter in the hysteresis function

    控制参数 A B Hmax/Nm
    最优取值 0.5817 0.4586 0.7415
    下载: 导出CSV

    表  3  两种控制方法对应的电机效率与转矩脉动系数

    Table  3.   Motor efficiency and torque pulsation coefficient corresponding to the two control methods

    控制方法效率/%转矩脉动系数/%
    变滞环PWM控制68.9626.24
    HYPWM-DITC59.9843.44
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-02-20
  • 刊出日期:  2024-05-31

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