Zobrazeno 1 - 10
of 39
pro vyhledávání: '"G.G. Zhemerov"'
Autor:
G.G. Zhemerov, D.V. Tugay
Publikováno v:
Electrical engineering & Electromechanics, Iss 2, Pp 11-19 (2016)
Purpose. To obtain relations determining the components of the total losses power with p-q-r power theory for three-phase four-wire energy supply systems, uniquely linking four components: the lowest possible losses power, losses power caused by the
Externí odkaz:
https://doaj.org/article/3d9ad8e14d9d4185985635b4ff30d539
Autor:
G.G. Zhemerov, D.V. Tugay
Publikováno v:
Electrical engineering & Electromechanics, Iss 6, Pp 36-42 (2015)
Purpose. The contradictions in the use of the term «reactive power» require justification by clarifying its physical meaning. The aim of the paper is to reveal the physical meaning of the term «reactive power» applied to three-phase three-wire an
Externí odkaz:
https://doaj.org/article/6739aa774202428a94c08e1e536e013e
Autor:
G.G. Zhemerov, D.V. Tugay
Publikováno v:
Electrical engineering & Electromechanics, Iss 4, Pp 28-34 (2015)
Purpose. Three-phase energy supply system with a symmetrical resistive load operates in mode with the highest possible efficiency in a case of zero instantaneous reactive power and the absence of pulsations instantaneous active power. When load param
Externí odkaz:
https://doaj.org/article/7da6d5a2a69c4a9e80779aa134acc13d
Autor:
G.G. Zhemerov, I.O. Lobach
Publikováno v:
Electrical engineering & Electromechanics, Iss 5, Pp 45-49 (2014)
Analytical dependences of such efficiency indices as energy loss power and copper consumption under transition from single-phase power distribution systems to three-phase ones are obtained.
Externí odkaz:
https://doaj.org/article/ad79e53054694c2a8a75c2f9a3999db5
Autor:
G.G. Zhemerov, D.V. Tugay
Publikováno v:
Electrical engineering & Electromechanics, Iss 1, Pp 45-57 (2014)
Use of the terms "energy", "active power", "reactive power" for power supply systems with semiconductor converters and energy storage is substantiated. Techniques for calculating energy efficiency of these systems are presented.
Externí odkaz:
https://doaj.org/article/297389d30fb74478b16c3bd3a5e6ba19
Autor:
G.G. Zhemerov, D.S. Krylov, O.V. Ilyina, D.V. Tugay, I.G. Titarenko, A.U. Baru, U.L. Shindnes
Publikováno v:
Electrical engineering & Electromechanics, Iss 6, Pp 49-58 (2013)
Matlab-models of two converter systems of an 8 MW AC drive are developed, one based on a self-contained current inverter with cut-off diodes, the other based on a multilevel cascade voltage inverter. By applying virtual simulation, qualitative charac
Externí odkaz:
https://doaj.org/article/5b2e9af6d0af4fa1b8ec229e8c78126f
Publikováno v:
Electrical engineering & Electromechanics, Iss 5, Pp 50-55 (2013)
A computer model building technique for an AC drive system with an autonomous 24-pulse current inverter is introduced. On the basis of the technique developed, a MATLAB variable-frequency drive model capable of working in both quasi-stationary and tr
Externí odkaz:
https://doaj.org/article/309ee49d23da4872ba4f6f2dc3293667
Publikováno v:
Electrical engineering & Electromechanics, Iss 2, Pp 40-47 (2013)
A technique for computer modeling of an AC drive system with a cascade multilevel voltage inverter is introduced. With the technique application, a Matlab-model of a variable-frequency electric drive functioning both in a quasi-stationary and in a tr
Externí odkaz:
https://doaj.org/article/e382803f4d924f07bd6bee6166fe2c81
Publikováno v:
Electrical engineering & Electromechanics, Iss 1, Pp 41-49 (2013)
Five subway power systems, a traditional power system and power systems with an active rectifier and an energy storage device, are considered. Estimation of energy loss in the analyzed subway power systems circuits is made.
Externí odkaz:
https://doaj.org/article/2c0fe48f740340619df750c7697ff9ea
Publikováno v:
Tekhnichna Elektrodynamika. 2020:36-39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9621ab697b4bb24017d616c5208f937b
https://doi.org/10.15407/techned2020.03.036
https://doi.org/10.15407/techned2020.03.036