Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Emil ROSU"'
Autor:
SILVIU EPURE, Emil Rosu
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 33, Iss 2, Pp 27-34 (2010)
This paper deals with a low power, single phase active filter used to compensate nonlinear loads. The filter uses the indirect control method and it is based on a particular connection between filter, polluting load and grid to avoid timeconsuming ma
Externí odkaz:
https://doaj.org/article/6a52768ab7dc4252b916d6cfb020397b
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 32, Iss 1, Pp 30-36 (2009)
Line-frequency controlled rectifiers have two major disadvantages: variable displacement power factor and high harmonic current fed to the power supply. If the power converter is large, e.g. for rolling mills drives, it is necessary to use a local re
Externí odkaz:
https://doaj.org/article/d02134b7e0484116979c7973b3d56503
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 31, Iss 1, Pp 5-10 (2008)
In this paper the optimal electrical drive development system is presented. It consists of both electrical drive types: DC and AC. In order to implement the optimal control for AC drive system an Altivar 71 inverter, a Frato magnetic particle brake (
Externí odkaz:
https://doaj.org/article/c41abc2b331643e8bac51b7f8f0b3010
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 2007, Iss 1, Pp 96-101 (2007)
A position drive system with D.C. motor is operated using conventional position, speed and current controls. These controls provide a good dynamic and steady-state behaviour, but they do not take in consideration the conversion’s efficiency. It is
Externí odkaz:
https://doaj.org/article/8e222795f29c43bb890627b1603d1658
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 2006, Iss 1, Pp 94-99 (2006)
The control of shunt active power filters using PWM inverters consists in generating a reference by separating, using different methods, the harmonics to be eliminated. The methods used are time-consuming and need dedicated control and signal process
Externí odkaz:
https://doaj.org/article/02394e108f1545a590989a30155cc2b7
Autor:
Marian GAICEANU, Emil ROSU
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 2003, Iss 1, Pp 51-56 (2003)
In this paper a simple load power estimator for the three-phase quasi-direct acac converter system is reported. Since the ac-ac converter control by means of pulsewidth modulation (PWM) is based on the power balance concept, its load power should be
Externí odkaz:
https://doaj.org/article/b4b656dfd3d34188984fbe9ef3f9c01a
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 2002, Iss 1, Pp 61-70 (2002)
n the paper is developed a new control strategy for the adjustable speed drives. The strategy consists in the energetic optimal control of the dynamic regimes as starting, stopping and reversing. The main developed problems: formulation of energetic
Externí odkaz:
https://doaj.org/article/78055191288a428cb838a0ae227854fd
Publikováno v:
Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică, Vol 2002, Iss 1, Pp 102-107 (2002)
The development in continuous casting process has been strongly dominated by the demands of quality improvement and reduced costs for steel products in recent years. To achieve these goals consideration has been given by increasing the velocity of ca
Externí odkaz:
https://doaj.org/article/1f49d597c2dc40748d985f3ff8b6c08e
Publikováno v:
2021 7th International Symposium on Electrical and Electronics Engineering (ISEEE).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d44dc3241a84b7fbe4d45a1d364173c
https://doi.org/10.1109/iseee53383.2021.9628806
https://doi.org/10.1109/iseee53383.2021.9628806
Publikováno v:
2019 6th International Symposium on Electrical and Electronics Engineering (ISEEE).
In the paper, the influence of the values of the elements of the network connecting block of a three-phase active filter of shunt type on the THD of the current delivered by the source supplying a non-linear load is analyzed. For the usual connecting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2573a8e2ca490fa768dd27a565badd17
https://doi.org/10.1109/iseee48094.2019.9136115
https://doi.org/10.1109/iseee48094.2019.9136115