Simple Augmented Current Controller with OHC Technique for grid current compensation in the Distribution System

This paper presents a novel control technique on four leg inverter with which the distribution grid is interconnected with the domestic houses. Most of the houses in the distribution side possess inverter for the usage of Electricity. With the advancement in Solar & wind, it will become easy to see houses, often with solar & a small Wind power system. The excess power generated can be exchanged with the Electricity Board for providing uninterruptible power supply. During this exchange there may be a deterioration in the quality of power, most often the grid current gets affected with a large harmonic distortion, and also there exists unbalanced grid currents. Thus, it is necessary to provide uninterruptible power supply with good quality of power. In spite of several controllers, the proposed augmented controller has its own reliability & quick response with Overall Harmonic Compensation (OHC) technique which relies on DSP based filter. This Augmented based control technique with OHC is demonstrated extensively with MATLAB/Simulink simulation. [email protected] Keyword-Current controller, Distributed Generation, Distribution system, Grid interconnection, Power Quality, Renewable Energy.