Design and implementation of a shunt hybrid active power filter

This thesis presents the controller development, the power circuit design and the experimental studies for Shunt Hybrid Active Power Filter (SHAPF). In this thesis work, a novel control method is proposed for SHAPF. Thanks to the proposed control method, SHAPF provides a dynamic compensation for the current harmonics and reactive power demands of the loads with the adaptive dc link voltage. In the proposed control method, a novel individual harmonic elimination based feedback control method is applied with using Synchronous Reference Frame (SRF) method in order to improve the harmonic compensation performance. In addition, an adaptive dc link voltage reference calculation method which is dependent on the reactive power demand and the harmonic current level of the load is applied to decrease the losses of SHAPF. In the scope of this thesis work, SHAPF prototype is designed to compensate the low order dominant current harmonics of six pulse rectifiers up to 15A and the reactive power in the range of 10kVAr±30%. The effective performance of the proposed controller and the designed power and electronic control circuits for SHAPF in the steady-state and the dynamic conditions of is verified with the experimental results.