A single phase DSP based on active power filter

The use of nonlinear loads,which inject undesired harmonic current into low vlotage distribution systems,is increasing rapidly.Active power filter(APF)are being considered as a potential candidate for solving harmonic problems in order to meet harmonic standards.A new digital singal processor(DSP) based control method for a singal phase active power filter is presented in this paper.The proposed scheme employs a carrier based control that requires less feedback information compared to other reported solutions.It also reduces the total chip count of the system using on-chip power electronics peripherals of the DSP controller.The proposed method provides both harmonic elimination and power factor correction.The simulation using the DSP controller verify the feasibility of the method.