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Evolutionary heuristic to determine future land use
(2008-09-29)
In the spatial electric load forecasting, the future land use determination is one of the most important tasks, and one of the most difficult, because of the stochastic nature of the city growth. This paper proposes a fast ...
Alternative continuation method for loading margin improvement and transmission losses reduction
(2004-12-01)
This paper presents an alternative methodology for loading margin improvement and total real power losses reduction by using a continuation method. In order to attain this goal, a parameterizing equation based on the total ...
Investigating effects of neutral wire and grounding in distribution systems with faults
(2004-12-01)
In some applications like fault analysis, fault location, power quality studies, safety analysis, loss analysis, etc., knowing the neutral wire and ground currents and voltages could be of particular interest. In order to ...
PMUs optimized allocation using a tabu search algorithm for fault location in electric power distribution system
(2004-12-01)
Phasor Measurement Units (PMUs) optimized allocation allows control, monitoring and accurate operation of electric power distribution systems, improving reliability and service quality. Good quality and considerable results ...
Evaluation of a multiobjective performance index for distribution systems with distributed generation
(2005-12-14)
Here a multiobjective performance index for distribution systems with distributed generation based on a steady-state analysis of the network is proposed. This index quantifies the distributed generation impact on total ...
On the equivalence of the mechanisms governing switching and hysteresis phenomena
(1992-01-01)
The nucleation and growth model, which is usually applied to switching phenomena, is adapted for explaining surface potential measurements on the P(VDF-TrFE) (polyvinylidene fluoride-trifluoroethylene) copolymer obtained ...
Distribution line models analysis for loss calculation within three-phase three-wire power flow algorithms
(2004-12-01)
Three-phase three-wire power flow algorithms, as any tool for power systems analysis, require reliable impedances and models in order to obtain accurate results. Kron's reduction procedure, which embeds neutral wire influence ...
Novel high-power-factor isolated electronic ballast for multiple tubular fluorescent lamps
(2001-01-01)
This paper presents a novel isolated electronic ballast for multiple fluorescent lamps, featuring high power-factor, and high efficiency. Two stages compose this new electronic ballast, namely, a new voltage step-down ...
Effects of the thyristor controlled serie capacitor on the electric power system
(2004-12-01)
This work deals with the effects of the series compensation on the electric power system for small-signal stability studies. Therefore, the system is modeled admitting the existence of the compensation and then, the equations ...
Evaluation and identification of lightning models by artificial neural networks
(1999-12-01)
This paper describes a novel approach for mapping lightning models using artificial neural networks. The networks acts as identifier of structural features of the lightning models so that output parameters can be estimated ...