Zobrazeno 1 - 10
of 150
pro vyhledávání: '"W. Koczara"'
Publikováno v:
PRZEGLĄD ELEKTROTECHNICZNY. 1:208-215
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcfe625017984ae490d726537242b970
https://doi.org/10.15199/48.2016.07.44
https://doi.org/10.15199/48.2016.07.44
Publikováno v:
Archives of Electrical Engineering. 61:411-420
Communication issues in the control system of reactive power compensator for hydroelectric plant with induction generator The presented paper concerns the issues of communication networks applied to monitoring and control of reactive power compensato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cb15acaaed2dbf2fea107f808bc9b45
https://doi.org/10.2478/v10171-012-0032-0
https://doi.org/10.2478/v10171-012-0032-0
Publikováno v:
Renewable Energy and Power Quality Journal. :1860-1865
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a5a847a4238f01d591b0a7f06040b9d
https://doi.org/10.24084/repqj10.854
https://doi.org/10.24084/repqj10.854
Autor:
Grzegorz Iwanski, W. Koczara
Publikováno v:
European Transactions on Electrical Power. 18:658-673
Modern power generation systems for wind turbines are often based on the rotor fed slip-ring machines. Power electronics converter provides the slip power, and also the reactive power for excitation of the generator during standalone operation. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0610a540dd01c730992e5e266e9f5d97
https://doi.org/10.1002/etep.256
https://doi.org/10.1002/etep.256
Autor:
W. Koczara, S. Sathiakumar
Publikováno v:
Electric Machines & Power Systems. 25:497-508
The features of the modified asynchronous cascade machine (ACM) system has been studied by simulating the model of the system in the field-oriented reference frame. The proposed system can operate in a wider speed range and with suitable control it w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adf5e4e514e9e788fd047134ad40ba14
https://doi.org/10.1080/07313569708955755
https://doi.org/10.1080/07313569708955755
Autor:
W. Koczara, S. Sathiakumar
Publikováno v:
Electric Machines & Power Systems. 25:485-496
The modelling of the modified asynchronous cascade machine system is done in order to study the features of such system under field-oriented frame of reference. The modified machine system has two stator windings and two sections of rotor winding on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09f2371ff505709b4ea0ba91555f0ff1
https://doi.org/10.1080/07313569708955754
https://doi.org/10.1080/07313569708955754
Autor:
J. Wisniewski, W. Koczara
Publikováno v:
2013 Eighth International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER).
The paper presents decoupled generating system equipped with induction generator and reactive power compensator. The feature of induction generator is reactive power demand that depends on instantaneous active power. Since active power of wind turbin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ce7a918d44bc05094d79da38a4b6869
https://doi.org/10.1109/ever.2013.6521578
https://doi.org/10.1109/ever.2013.6521578
Publikováno v:
2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC).
Paper presents generation system dedicated to small hydro power station. The conventional generation system uses cage induction generator which demand of reactive power is very high and then its power quality in transients and steady state is very po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69eb69d2a615f30fc51964035e0eb67e
https://doi.org/10.1109/epepemc.2012.6397313
https://doi.org/10.1109/epepemc.2012.6397313
Autor:
J. Wisniewski, W. Koczara
Publikováno v:
2011 7th International Conference-Workshop Compatibility and Power Electronics (CPE).
The paper presents a simple sensorless method, which can be used to determine poles position of a permanent magnet axial flux motor. Described method is related to impact of a back electromotive force on current shape produced when a zero voltage vec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85277db8edaaf989532babc854e25e42
https://doi.org/10.1109/cpe.2011.5942272
https://doi.org/10.1109/cpe.2011.5942272
Autor:
W. Koczara, J. Wisniewski
Publikováno v:
2011 IEEE International Symposium on Industrial Electronics.
The paper shows a sensorless method of rotor position identification of an axial flux permanent magnet motor at very low speed. Presented method is based on stator current measurement in case when zero voltage vector is applied. The method was verifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b012e5103f0ff8f5df9f3109bb2bb9aa
https://doi.org/10.1109/isie.2011.5984239
https://doi.org/10.1109/isie.2011.5984239