Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 507994

Detection of inter-coil short circuits in wind generator windings


Elez, Ante; Jelavić, Mate; Car, Stjepan
Detection of inter-coil short circuits in wind generator windings // Scientific Proceedings European Wind Energy Conference & Exhibition, 14th-17th March 2011, Brussels, Belgium
Brussels: European Wind Energy Association, 2011. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


CROSBI ID: 507994 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Detection of inter-coil short circuits in wind generator windings

Autori
Elez, Ante ; Jelavić, Mate ; Car, Stjepan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Scientific Proceedings European Wind Energy Conference & Exhibition, 14th-17th March 2011, Brussels, Belgium / - Brussels : European Wind Energy Association, 2011

Skup
European Wind Energy Conference & Exhibition, 14th-17th March 2011, Brussels, Belgium

Mjesto i datum
Brussels, Belgija, 14.03.2011. - 17.03.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
synchronous generator; magnetic field; flux density; measuring coil; Hall sensor; and generator diagnostics

Sažetak
This paper presents two new methods of inter-coil short circuits detection in synchronous generator armature and excitation windings, based on the analysis of the machine magnetic field in the generator. Methods are applicable for the machines that have windings with coils, what is the case in most wind generators. The basis for the short circuit detection is a good model of the influence that short circuit has on the air gap magnetic field. Such a model was derived by applying FEM (finite element method) to the generator model. By this approach magnetic field wave forms in the machine have been calculated for every point of interest, under correct and faulty conditions. The points of interest were chosen at spots that are accessible for measurement on an actual machine. The derived model was validated by comparison with the measurements taken on real machines in correct and faulty condition. The generator model in the correct conditions was proven correct by comparison with measurements taken on a real 1MW wind generator. The faulty generator model was validated by comparison with the measurements on a real 16 kVA generator. This generator was altered for this testing in a way that it was possible to short-circuit one or more coil turns of the armature phase winding and the excitation coil windings of one rotor pole. The results obtained by numerical analysis (that was confirmed by real life measurements) offered a valuable insight into generator's physics. This knowledge was used to derive models of how particular generator condition manifests itself through measurable variables. The numerical results were also used as a guideline in choosing proper sensors and variables processing methods. In this way two methods for inter-coil short circuit detection were developed and implemented as fault detection systems.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika



POVEZANOST RADA


Projekti:
008-0361616-1624 - Sustav motrenja sinkronih generatora (Car, Stjepan, MZOS ) ( CroRIS)
008-0362978-1485 - Dijagnostika električnih strojeva i strojevi s povećanim stupnjem djelovanja (Elez, Ante, MZOS ) ( CroRIS)

Ustanove:
KONČAR - Institut za elektrotehniku d.d.

Profili:

Avatar Url Mate Jelavić (autor)

Avatar Url Stjepan Car (autor)

Avatar Url Ante Elez (autor)


Citiraj ovu publikaciju:

Elez, Ante; Jelavić, Mate; Car, Stjepan
Detection of inter-coil short circuits in wind generator windings // Scientific Proceedings European Wind Energy Conference & Exhibition, 14th-17th March 2011, Brussels, Belgium
Brussels: European Wind Energy Association, 2011. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Elez, A., Jelavić, M. & Car, S. (2011) Detection of inter-coil short circuits in wind generator windings. U: Scientific Proceedings European Wind Energy Conference & Exhibition, 14th-17th March 2011, Brussels, Belgium.
@article{article, author = {Elez, Ante and Jelavi\'{c}, Mate and Car, Stjepan}, year = {2011}, pages = {8 str.}, keywords = {synchronous generator, magnetic field, flux density, measuring coil, Hall sensor, and generator diagnostics}, title = {Detection of inter-coil short circuits in wind generator windings}, keyword = {synchronous generator, magnetic field, flux density, measuring coil, Hall sensor, and generator diagnostics}, publisher = {European Wind Energy Association}, publisherplace = {Brussels, Belgija} }
@article{article, author = {Elez, Ante and Jelavi\'{c}, Mate and Car, Stjepan}, year = {2011}, pages = {8 str.}, keywords = {synchronous generator, magnetic field, flux density, measuring coil, Hall sensor, and generator diagnostics}, title = {Detection of inter-coil short circuits in wind generator windings}, keyword = {synchronous generator, magnetic field, flux density, measuring coil, Hall sensor, and generator diagnostics}, publisher = {European Wind Energy Association}, publisherplace = {Brussels, Belgija} }




Contrast
Increase Font
Decrease Font
Dyslexic Font