Voltage Regulation and Harmonic Isolation in Imbalance Power Distribution Systems by Shunt Hybrid Filterهجدهمین کنفرانس بین المللی برق
This paper deals with a special type of Shunt Hybrid Active Filter (SHAF), consisting of activeand passive filter connected in series with each other. A new control scheme is presented thatenables SHAF to perform both voltage regulation and harmonic isolation in imbalance powerdistribution systems. In` proposed scheme, the voltage regulation is implemented through injectionand\or absorption of reactive power into the power system by controlling the fundamentalcomponent of the inverter generated voltage. To perform harmonic isolation between power systemand nonlinear loads, a new harmonic extraction method is proposed which can extract the harmoniccomponents of the line current even in present of fundamental negative sequence. In order to validate the proposed scheme, a typical power distribution system including differenttypes of linear and nonlinear loads is simulated and the results are presented.<\div>
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