Space vector modulation current control of a three-phase PV grid-connected inverter

In recent years, there has been a rapid increase in the number of photovoltaic (PV) three phase inverter systems being to grid connected. Keeping the highly quality waveform and low harmonic distortion of the current waveform during abnormal condition is one of the most challenging. To achieve this target, a current control technique is carefully considered. This paper present a simple method to compensate the reactive power to the grid connected inverter to deal with abnormal grid condition. The control system using space vector modulation (SVM) with the more recently adopted Proportional Resonant controller (PR). The proposed technique will show an effective method for grid-connected application. Simulation results will demonstrate the effectiveness of the proposed technique.