COMPARATIVE EVALUATION OF POWER QUALITY SOLUTIONS USING ACTIVE POWER FILTERS
Keywords:
Active filters, unified power quality conditioner, current and voltage compensation, power quality.
Abstract
Active filtering has become a technology to compensate for current or voltage for a three-phase three-wire distribution network with nonlinear loads. This paper presents active filter (AF) configurations and control strategies based on voltage or current components.
The simulation results of the parallel active filter, the series active filter, and the series active filter combined with the passive filters in the case of nonlinear loads are compared and evaluated to prove their superiority. Accordingly, active series filters combined with passive filters give the best performance since they can compensate for both current harmonics and source voltage thoroughly regardless of both grid voltage drops and nonlinear loads
