摘要
双三相高速永磁电机匝间短路故障初期诊断困难,限制了在航空领域的应用。针对上述问题,建立双三相高速永磁电机匝间短路故障状态下的电路模型,推导出短路电流关于电机运行状态和短路参数的解析表达式,进而基于双三相电机的故障模型提出故障诊断方法,无需添加额外的传感器即可根据定子电流的不平衡度准确诊断匝间短路故障。以250 kW、23000 r/min双三相航空高速永磁起动发电机为例进行场路耦合有限元仿真和样机实验,场路耦合仿真和实验结果验证了模型的准确性,并且表明所提的故障诊断方法在电机动态加载工况和宽速域发电工况下均能够及时有效地识别匝间短路初期的故障特征,具有较强的鲁棒性。上述研究为航空起动发电机的匝间短路故障诊断提供了一定参考。
It is difficult to diagnose inter-turn short-circuit fault in dual three-phase high-speed permanent magnet motor in the early stage,which limits its application in aviation field.In allusion to the above problems,the circuit model of the dual three-phase high-speed permanent magnet motor under the condition of inter-turn short-circuit fault was established,and the analytical expression of the short-circuit current related to the motor’s operating state and short-circuit parameters was deduced.A fault diagnosis method based on the model was proposed,by which the inter-turn short-circuit fault can be diagnosed accurately according to the imbalance of the stator current without additional sensors.The field-circuit coupled finite element simulation and prototype experiments of a 250 kW,23000 r/min dual three-phase aviation high-speed permanent magnet starter-generator were carried out.The field-circuit coupled simulation and experimental results verify the accuracy of the proposed model,and indicate that the fault of the inter-turn short-circuit in early stage under the motor’s dynamic loading and the wide-speed-range power generation conditions can be identified effectively and timely by the proposed fault diagnosis method,while also confirming the robustness of the proposed method,which provides a valuable reference for the inter-turn short-circuit fault diagnosis of aviation starter-generators.
作者
李浩楠
王又珑
李文善
魏嘉麟
LI Haonan;WANG Youlong;LI Wenshan;WEI Jialin(State Key Laboratory of High Density Electromagnetic Power and Systems,Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology,Qilu Zhongke,Jinan 250100,China)
出处
《电机与控制学报》
北大核心
2026年第2期153-165,共13页
Electric Machines and Control
基金
中国科学院电工研究所科研基金(IEERF250206)
中国科学院基础与交叉前沿科研B类先导专项(XDB1330000)。
关键词
航空起动发电系统
故障诊断
匝间短路
高速永磁同步电机
双三相电机
场路耦合仿真
aviation starter generator system
fault diagnose
inter-turn short circuit
high speed permanent magnet synchronous motor
dual three-phase motor
field-circuit co-simulation
