Power quality improvement of grid interfaced solar PV using adaptive line enhancer based control scheme

This paper presents a control scheme based on sign least mean kurtosis (SLMK) with adaptive line enhancer for three phase grid interfaced solar photovoltaic (PV) system. The SLMK based control scheme serves manifold objectives such as load balancing, improve solar power penetration into the distributed network and power factor correction. The SLMK algorithm is used to extract weights of fundamental load current for each phase. Test results show satisfactory performance for a proposed system under steady state and dynamic conditions such as load unbalancing, variable solar insolation. The total harmonic distortions (THDs) of grid currents and voltages are found within limits of IEEE-519 and 929 standards.