Adaptive control of a grid-connected SPV system with DSTATCOM capabilities

Abstract

This paper applies frequency domain block LMS (FBLMS) algorithm for implementation of a three phase grid-connected solar photovoltaic (SPV) system. This system provides power factor correction (PFC), voltage regulation and maintains an IEEE-519 standard by keeping the harmonic distortion of grid currents below 5%. To successfully extract the maximum power from the SPV array at varying environmental conditions, a single stage system with perturb and observe MPPT method is used, which is integrated with adaptive control for the estimation of reference grid currents. Modelling of the system is done through MATLAB software and the results of simulation are shown under various operating conditions.