Inter-turn Short Circuit Ratio Estimation in IPMSMs Based on a Fault Index Current Observer

被引：0
|
作者：
Palavicino, Pablo Castro [1 ]
Bobba, Dheeraj [1 ]
Sarlioglu, Bulent [1 ]
机构：
[1] Univ Wisconsin, WEMPEC, Madison, WI 53706 USA
来源：
2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2017年
关键词：
fault index current; inter-turn faults; internal short circuit; IPMSM modeling; observers; sequence components; turn-to-turn faults; FLUX LINKAGE OBSERVER; STATOR; DIAGNOSIS;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper proposes an approach to estimate the ratio between shorted and total turns in interior permanent magnet synchronous machines (IPMSM). When an inter-turn short circuit (ISC) occurs, a particular disturbance affects the motor. The proposed method estimates this disturbance using an observer; this estimated signal is used to obtain the short circuit ratio. The observers are based on a dynamic model of an IPMSM under ISC. The proposed technique has several advantages. The observer estimates the ISC disturbances even if multiple phases have ISCs. Torque recovery under ISC is possible with the proposed method. In addition, short circuit ratio is estimated separately for each phase, which makes it more flexible than other conventional methods such as sequence components analysis.
引用
收藏
页码：5417 / 5423
页数：7
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