电工电气杂志社

高压断路器操动机构用双定子永磁电机设计

来源：电工电气发布时间：2022-12-22 11:22 浏览次数：174

高压断路器操动机构用双定子永磁电机设计

李佳嫱，林莘，王俊博，刘梓超

(沈阳工业大学电气工程学院，辽宁沈阳 110870)

摘要：为了减小高压断路器操动机构驱动电机的体积，提高其工作可靠性，对负载侧进行受力分析，设计了一种满足 126 kV 高压断路器操动机构负载特性要求的双定子永磁无刷直流电机。对驱动电机的结构和主要参数进行研究，包括电机主要尺寸、极弧系数、电磁负荷、定子极槽数配合、定子裂比；利用有限元方法建立驱动电机模型，得到了电机磁密云分布、磁力线分布、输出转矩与电流，对电机的电磁性能与动态特性进行分析，验证了电机设计合理性。

关键词： 高压断路器；双定子永磁无刷直流电机；操动机构

中图分类号：TM351 ；TM561 文献标识码：A 文章编号：1007-3175(2022)12-0042-05

Design of Double Stator Permanent Magnet Motor Operating

Mechanism for High Voltage Circuit Breaker

LI Jia-qiang, LIN Xin, WANG Jun-bo, LIU Zi-chao

（School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China）

Abstract: This research designed an operating mechanism for a double-stator permanent magnet brushless DC motor to meet the load characteristics requirements of a 126 kV high voltage circuit breaker. The new design could help reduce the volume of the driving motor of the operating mechanism of a high voltage circuit breaker, improve operational reliability, and implement the force analysis of the load side.Besides, this paper studied the structure and main parameters of the driving motor, including the vital size of the motor, pole arc coefficient,electromagnetic load, stator slot number, and stator split ratio. In addition, it employed the finite element method to establish the driving motor model and obtain the magnetic cloud distribution, magnetic force line distribution, output torque, and current of the motor.It also analyzed the electromagnetic properties and dynamic characteristics of the motor. The result verified the rationality of the motor design.

Key words: high voltage circuit breaker; double stator permanent magnet brushless DC motor; operating mechanism

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高压断路器操动机构用双定子永磁电机设计