A new Schematic for hybrid active power filter controller

Nowadays power quality in power network requests using from existing equipments as high-performance and low cost such as improvement of compensator equipment and ways of efficiency increasing can be reduced destroyer effect on network. Active power filters is more importance and finance in network and industrial. It has depended detector algorithm and switching technique. This paper presents a novel Schematic for active power filter algorithm. This algorithm based on harmonic extraction is divided into two parts as feedback loop and feedforward loop. Also it increases accuracy of harmonic extraction by reducing of isolator calculation due to elimination of voltage calculation and changing of reference signal from voltage reference to current reference than similar algorithms. Also this changing cause that it can be used with switching techniques that work base on current as they are simpler and efficacy. In this algorithm, switching losses are considered that it helps to increase accuracy. Thus using the combination of this algorithm and current switching technique increases accuracy and decreases complication of previous structures that consequently, it increases controller efficacy of active power filter. Simulation result shows performance this model clearly.