高压断路器操动机构驱动电机及其控制技术研究  

Motor design and control technology of high-voltage circuit breaker operating device

作　　者：王奕飞[1] 林莘[1] 徐建源[1] 厉伟[1] WANG Yifei;LIN Xin;XU Jianyuan;LI Wei(School of Electric Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110870

出　　处：《电机与控制学报》2024年第1期95-104,共10页Electric Machines and Control

基　　金：国家自然科学基金(51777130)。

摘　　要：高压断路器操动机构用电机驱动提高了断路器运行的可靠性与可控性,因此设计了一套适用于126 kV真空断路器的电机操动机构。基于操动机构动力学分析结果确定驱动电机转矩、转速要求,提出一种有限转角永磁无刷电机设计方案,研制样机进行联机试验完成动作要求检验。在此基础上,设计分段转矩控制策略,结合驱动电机输出转矩需求将操动机构的运动过程分为4个阶段,从降低触头碰撞、避免预击穿现象发生、提高断路器工作可靠性角度对各阶段电机输出转矩进行动态调节。结果表明:所研制的驱动电机配合分段转矩控制策略,在保证灭弧室对操动机构动作时间、动作速度要求的前提下,实现了操动机构的运动过程优化和工作可靠性提高,促进了断路器智能化操作进程。The motor-driven operating device of high-voltage circuit breakers improves the reliability and controllability of circuit breaker operation.A set of motor-driven operating device for 126 kV vacuum circuit breaker was designed.Based on the driving motor torque and speed requirements determined by the kinetic analysis of the actuator,a finite angle permanent magnet brushless motor design was proposed,and a prototype was developed for inline testing to complete the action requirement test.On this basis,the segmented torque control strategy was designed to combine the output torque requirements of the drive motor to divide the motion process of the operating device into four stages,and dynamically adjust the output torque of the motor in each stage from the perspective of reducing contact collision,avoiding prearcing and improving the working reliability of the circuit breaker.The results show that the developed drive motor with segmental torque control strategy can optimize the motion process and improve the reliability of the operating device and promote the intelligent operation of the circuit breaker,while ensuring the interrupter’s requirements for the operating time and speed of the operating device.

关 键 词：高压断路器 操动机构 驱动电机 分段转矩控制 智能化操作 试验验证 

分 类 号：TM561[电气工程—电器]