Control of SHAPF using dual instantaneous reactive power theory with minimum DC link voltage deduction algorithm

A control algorithm for a Series Hybrid Active power Filter is proposed. The compensating signals are derived based on Dual instantaneous reactive power theory. A, DC link voltage reduction algorithm is incorporated in the model to reduce the switching stresses. The proposed scheme does not vary the compensation characteristics of the filter. Different loads are applied at different time intervals and the DC link voltage reference is calculated for each interval. Simulations have been done based on the MATLAB/Simulink platform.