Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Marius Biriescu"'
Autor:
Toma DORDEA, Marius BIRIESCU, Petru ANDEA, Voicu GROZA, Vladimir CREŢU, Marţian MOŢ, Gheorghe MADESCU, Ciprian ŞORÂNDARU
Publikováno v:
Annals: Series on engineering sciences (Academy of Romanian Scientists), Vol 1, Iss 1, Pp 45-54 (2009)
The paper presents some significant aspects concerning testing electrical machines, including high power ones, using a Data Acquisition and Processing System (DAPS), based on a PC compatible microsystem. There are described the main measurement tasks
Externí odkaz:
https://doaj.org/article/b74f2daa8b2741609490134c25bd07ce
Publikováno v:
2020 International Conference on Electrical Machines (ICEM).
The experimental results on induction machine rotor bar are difficult to acquire and they are rarely presented in scientific literature. This paper presents an analysis of the rotor bar current waveform of an inverted induction machine. The prototype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a94ba2b4cf3e6f19d42261eafb3427e
https://doi.org/10.1109/icem49940.2020.9270730
https://doi.org/10.1109/icem49940.2020.9270730
Publikováno v:
EUROCON
Multiphase windings or other special windings (fractional-slot, tooth-concentrated, multilayer) have been gained a great interest over the last years due to some advantages that this type of windings provides for alternative current (a.c.) electrical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebc92447bd704d25a3f0fd7fdc08f61a
https://doi.org/10.1109/eurocon.2019.8861728
https://doi.org/10.1109/eurocon.2019.8861728
Publikováno v:
Electrical Engineering. 99:1013-1020
The paper presents an evaluation procedure of the insulation performances of the stator coil of a 18 MW vertical synchronous hydro-generator by monitoring the level of partial discharge (PD). The evaluation was achieved after a 5 years’ period of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5a98f455b5952ea73e8cc0ff021a843
https://doi.org/10.1007/s00202-016-0471-5
https://doi.org/10.1007/s00202-016-0471-5
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXIII, Iss 1, Pp 73-88 (2016)
The study shows the numerical simulation of the magnetic field for a permanent magnet synchronous generator prototype. Through the study, the OPERA software environment, a program based on the numerical computation using the finite element method and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::b913842399982035e8703a14281ec7e7
http://anale-ing.uem.ro/2016/9.pdf
http://anale-ing.uem.ro/2016/9.pdf
Publikováno v:
2018 International Symposium on Electronics and Telecommunications (ISETC).
This paper deals with the analyses of a three-phase synchronous generator with an inset neodymium-iron-boron permanent magnet rotor. This rotor structure produces an inverse saliency effect meaning the quadrature-axis reactance is greater than the di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b743a55e43890b0c5e7ee4f9c92bc87
https://doi.org/10.1109/isetc.2018.8583943
https://doi.org/10.1109/isetc.2018.8583943
Publikováno v:
2017 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) & 2017 Intl Aegean Conference on Electrical Machines and Power Electronics (ACEMP).
The paper proposes a fast estimation method for the over-currents that occur in a broken bar cage induction motor. In essence, simple analytical expressions of over-currents in the two healthy bars adjacent to the broken bars, for a few typical situa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdde799427dbb699b4bb68c5a8d78156
https://doi.org/10.1109/optim.2017.7975001
https://doi.org/10.1109/optim.2017.7975001
Publikováno v:
2017 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) & 2017 Intl Aegean Conference on Electrical Machines and Power Electronics (ACEMP).
The paper analyses the performances of a three-phase synchronous generator with an inset neodymium-iron-boron permanent magnet rotor. This rotor structure produces an inverse saliency effect meaning the quadrature-axis reactance is greater than the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e3da7913e7488c4762862a7afeb723c
https://doi.org/10.1109/optim.2017.7975002
https://doi.org/10.1109/optim.2017.7975002
Publikováno v:
2016 XXII International Conference on Electrical Machines (ICEM).
This paper simply investigates experimentally multiple “rotor” bar current waveforms at standstill, on a dedicated inside-out induction motor prototype as a basis to analyze the asymmetry of bar currents. A phasor calculus scheme based on primary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4f7b91d87fef1d501d42c1a0d79345d
https://doi.org/10.1109/icelmach.2016.7732548
https://doi.org/10.1109/icelmach.2016.7732548
Autor:
Constantin Dobrean, Jurcu Marcel-Romulus, Traian Jurca, Marius Biriescu, Laurentiu Padeanu, I Pădureanu
Publikováno v:
2016 International Conference on Information and Digital Technologies (IDT).
The paper deals with a method of reducing the unbalanced magnetic pull for large synchronous hydro generators, in case of rotor eccentricity and/or shape deviation of the rotor and stator. The method is based on a dedicated data acquisition system an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8439ab7f4c5c9635492cae9dbde2ace0
https://doi.org/10.1109/dt.2016.7557151
https://doi.org/10.1109/dt.2016.7557151