双凸极电机位置信号的故障诊断与容错控制  

Fault Diagnosis and Fault-tolerant Control of Position Signal for Doubly Salient Motor

作　　者：马长山[1] 周波[1] 

机构地区：[1]航空电源航空科技重点实验室(南京航空航天大学),江苏省南京市210016

出　　处：《中国电机工程学报》2008年第18期73-78,共6页Proceedings of the CSEE

基　　金：江苏省高技术项目(BG2004009);航空支撑科技基金(03C52007)

摘　　要：位置传感器是无刷电机正确换相的关键。位置信号出现故障后,电机的换相逻辑混乱,输出转矩降低,电机转速下降。为提高系统可靠性,使电机能在正确的位置输出换相信息,对位置传感器进行故障诊断和容错控制是必要的。该文通过对永磁式双凸极电机位置信号的研究,提出一种实时监测位置信号运行状态的方法。在系统诊断出位置信号故障后,通过对位置信号换相逻辑控制器进行重构,实现故障后容错控制。通过对位置信号故障的模拟,验证了该文对位置信号故障分析、故障诊断和容错控制的正确性和实用性。Position sensor is key of exact commutation for brushless motor. When position sensor is faulted, information of commutation will be incorrect, causes torque decrease, speed reduction. The study on fault diagnosis and fault-tolerant control of position signal is necessary in order to output correct commutation information and increase reliability. The method of real-time monitoring state of position signal is proposed through studying position signal of doubly salient permanent magnet motor. The logical controller of commutation is restructured. Fault-tolerant control is carried out immediately after fault of position signal is diagnosed. The validity and practicability of fault analysis, fault diagnosis and fault-tolerant control is verified by fault simulation and test.

关 键 词：双凸极电机 位置信号 故障诊断 容错控制 

分 类 号：TM351[电气工程—电机]