基于COMSOL分析步进电动机故障的电流和磁场变化规律研究  

Research on the Change Law of Current and Magnetic Field of Stepper Motor Fault Based on COMSOL

作　　者：龙玉江 王杰峰 钱俊凤 赵文彬 LONG Yujiang;WANG Jiefeng;QIAN Junfeng;ZHAO Wenbin(Information Center of Guizhou Power Grid Co.,Ltd.,Guiyang 550000,China;Shanghai University of Electric Power,Shanghai 201306,China)

机构地区：[1]贵州电网有限责任公司信息中心,贵阳550000 [2]上海电力大学,上海201306

出　　处：《微特电机》2024年第4期44-48,共5页Small & Special Electrical Machines

摘　　要：步进电动机是电力系统稳定运行的关键设备之一,当步进电动机在运行过程中出现故障,将直接导致电力系统的停运,给电力企业带来经济损失,需要对步进电动机内部故障原因进行研究。通过COMSOL有限元分析及建模的方式,对步进电动机的失步故障和开路故障所引起的电场和磁场的变化展开了研究,分析了在5种不同频率下失步故障和开路故障所引起的电场和磁场的变化规律,以提高对步进电动机故障诊断的效率。Stepper motor is one of the key equipments for the stable operation of the power system.When the stepper motor breaks down during the operation,it will directly lead to the shutdown of the power system and bring economic losses to the power enterprises.It is necessary to study the causes of the internal faults of the stepper motor.The changes of current field and magnetic field caused by out-of-step fault and open-circuit fault of stepper motor were studied by means of COMSOL finite element analysis and modeling,and the changes of current field and magnetic field caused by out-of-step fault and open-circuit fault under five different frequencies were analyzed to improve the efficiency of fault diagnosis of stepper motor.

关 键 词：步进电动机 失步故障 开路故障 电场变化 磁场变化 

分 类 号：TM359.9[电气工程—电机]