Stray flux and air gap flux experimental measurement and analysis in large hydro generators

被引：2

作者：

Bernier, Simon ^{[1
]}

Merkhouf, Arezki ^{[1
]}

Al-Haddad, Kamal ^{[2
]}

机构：

[1] Inst Rech Hydroquebec, Varennes, PQ, Canada

[2] Ecole Technol Super, Montreal, PQ, Canada

来源：

2023 IEEE WORKSHOP ON ELECTRICAL MACHINES DESIGN, CONTROL AND DIAGNOSIS, WEMDCD | 2023年

关键词：

stray flux; air gap flux; large hydro-generators; diagnostic; ellipticity; eccentricity; fault detection; INDUCTION MACHINE; LEAKAGE FIELDS; FAILURES; FAULTS; ROTOR; ENDS; BAR;

D O I：

10.1109/WEMDCD55819.2023.10110944

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents experimental measurement and analysis of both stray and air gap magnetic fluxes performed on various large hydro generators. The study shows the similarity and the differences of these two types of measurements when it comes to develop diagnosis method and remedial strategies. The radial and tangential components of the stray flux are also shown at different measurement points around the electrical machine. The study shows the usefulness of this measurement approach to detect electrical and mechanical faults found in large hydrogenerators such as rotor eccentricity (static or dynamic), rotor ellipticity and interturn short circuit in the rotor windings.

引用

页数：6

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