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40.758  Articles
1 of 4.077 pages  |  10  records  |  more records»
A vectorial principle of voltage inverter control has been offered on the basis of the unified spatial current/voltage vectors in the revolving system of coordinates for compensation of reactive power and stabilizing the voltage.

En el trabajo se trata el problema de la compensación de la potencia reactiva en los sistemas de distribución primaria de energía eléctrica, teniendo en consideración los efectos del desbalance. En tal sentido, se abordan los diferentes aspectos para la c... see more

Voltage control and reactive power compensation in a distribution network with embedded wind energy conversion system (WECS) represent main concern of this paper. The WECS is of a fixed speed/constant frequency type that is equipped with an induction gene... see more

Installing a synchronous condenser (SC) onto an electricity grid can assist in the areas of reactive power needs, short-circuit strength, and, consequently, system inertia and guarantees better dynamic voltage recovery. This paper summarizes the practical... see more

This study reports on a case study in Grootegeluk Mine: Exxaro Coal, Lephalale, South Africa, in terms of power factor correction (PFC), load flow, harmonic frequency scans and harmonic voltage distortion analyses. The DIgSilent PowerFactory software was ... see more

This paper gives an introduction to the single-phase instantaneous PQ (P-instantaneous real power and Q-instantaneous virtual power) theory and carries out the calculation and simulation analysis on reactive power, active power, instantaneous reactive po... see more

This paper proposes a circuit solution and a control algorithm for a welding power source for TIG-AC welding with improved energy characteristics. The source is made using a welding transformer and a low-voltage series active power filter on power field e... see more

This study reports on a case study in Grootegeluk Mine: Exxaro Coal, Lephalale, South Africa, in terms of power factor correction (PFC), load flow, harmonic frequency scans and harmonic voltage distortion analyses. The DIgSilent PowerFactory software was ... see more

In this work the generalized mathematical model of an electrical network of the electrified railway junction is proposed. An estimation of influence of static var compensators installation on electric power losses in a network is executed on the basis of ... see more

1 of 4.077 pages  |  10  records  |  more records»