Home > Published Issues > 2016 > Volume 5, No. 2, April 2016 >


Vaisali and P D V S K Kishore
EEE Department, Narasaraopeta Engineering College, Narasaraopeta, India.

Abstract—Active filters are widely used in power system for reactive power compensation and voltage/ current harmonic elimination. Harmonic contents of the source current has been calculated and compared for the different cases to demonstrate the influence of harmonic extraction circuit on the harmonic compensation characteristic of the shunt active power filter. In this paper, a fuzzy logic controlled, three-phase shunt active filter is used to improve power quality by compensating current harmonics which is required by a nonlinear load. However, when the LC-HAPF is performing dynamic reactive power compensation, this dc-link voltage control scheme will influence the reactive power compensation, and thus, makes the LC-HAPF lack of success to carry out dynamic reactive power compensation. In this paper, a novel dc-link voltage control scheme for LC-HAPF is proposed so that the dc-link voltage control with start-up self-charging process can be obtained as well as providing dynamic reactive power compensation. Representative simulation and experimental results of the three-phase four-wire center-spilt LC-HAPF are presented to verify all deductions, and also show the effectiveness of the proposed dc-link voltage control scheme in dynamic reactive power compensation.

Index Terms—Active Power Filters (APFs), dc-link voltage control, Hybrid Active Power Filters (HAPFs), Passive Power Filters (PPFs), Reactive power control

Cite: Vaisali and P D V S K Kishore, "SHUNT CONNECTED HYBRID ACTIVE POWER FILTERS BY USING DC-LINK VOLTAGE CONTROLLER," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 5, No. 2, pp. 80-94, April 2016.