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In this paper, a novel control algorithm for three-phase four-wire shunt active power filter for the compensation of instantaneous harmonic current components in nonlinear loads is presented. Fundamental signal extraction is carried out using Harmonic Tuned Filter (HTF) without the Phase Locked Loop (PLL). HTF can efficiently determine the fundamental signal components from distorted voltage or current...
The paper presents a controller for an active filter to compensate reactive power and current harmonic distortion in a single phase system, i.e., to guarantee a power factor close to unity. The proposed controller considers the negative effects caused by the interaction between load and line impedances, which may lead to instabilities. In particular, the scheme provides a solution in the critical...
This paper presents a controller for an active filter to compensate reactive power and current harmonic distortion in a single phase system, i.e., to guarantee a power factor close to unity. The proposed controller considers the negative effects caused by the interaction between load and line impedances, which may lead to instabilities when the controller is enabled. The idea behind the solution consists...
This paper presents in this study a control algorithm to compensate harmonic current and reactive power simultaneously in 3 phase, where 3-wire and 4-wire non-linear loads. If the utility voltage is distorted, active power filter (APF) allows similar level of distortion in the compensated source current. Therefore, the resultant source currents have the same waveform as that of the supply voltage,...
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