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高壓斷路器操動機構用雙定子永磁電機設計

來源：電工電氣發(fā)布時間：2022-12-22 11:22 瀏覽次數：452

高壓斷路器操動機構用雙定子永磁電機設計

李佳嬙，林莘，王俊博，劉梓超

(沈陽工業(yè)大學電氣工程學院，遼寧沈陽 110870)

摘要：為了減小高壓斷路器操動機構驅動電機的體積，提高其工作可靠性，對負載側進行受力分析，設計了一種滿足 126 kV 高壓斷路器操動機構負載特性要求的雙定子永磁無刷直流電機。對驅動電機的結構和主要參數進行研究，包括電機主要尺寸、極弧系數、電磁負荷、定子極槽數配合、定子裂比；利用有限元方法建立驅動電機模型，得到了電機磁密云分布、磁力線分布、輸出轉矩與電流，對電機的電磁性能與動態(tài)特性進行分析，驗證了電機設計合理性。

關鍵詞： 高壓斷路器；雙定子永磁無刷直流電機；操動機構

中圖分類號：TM351 ；TM561 文獻標識碼：A 文章編號：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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高壓斷路器操動機構用雙定子永磁電機設計