Title :
Power factor analysis under nonsinusoidal and unbalanced systems
Author :
Marafão, F.P. ; Deckmann, S.M. ; Marafao, J.A.G.
Abstract :
Instantaneous power definitions and a selective disturbance identification methodology are used in this paper to discuss the applicability of power factor (PF) concepts under distorted and unbalanced voltages and currents. The main goal is to expose some problems related with the conventional definitions and propose alternative solutions based on voltage, current and power conformity factors. As defined, these factors may also be used as power quality indices and thus aggregate more information about the power supply to any type of load. Simulation results are presented to illustrate the proposal.
Keywords :
harmonic distortion; identification; load (electric); power factor; power measurement; power supply quality; PF; current conformity factor; distorted current; distorted voltage; disturbance identification methodology; harmonic distortion; instantaneous power; load; nonsinusoidal systems; power conformity factor; power factor; power factor analysis; power measurement; power quality; power supply; simulation; unbalanced current; unbalanced systems; unbalanced voltage; voltage conformity factor; Aggregates; Energy consumption; Power measurement; Power quality; Power supplies; Power system harmonics; Proposals; Reactive power; Total harmonic distortion; Voltage;
Conference_Titel :
Harmonics and Quality of Power, 2002. 10th International Conference on
Print_ISBN :
0-7803-7671-4
DOI :
10.1109/ICHQP.2002.1221443
