Control Of Single-phase Solar Power Generation System With Universal Active Power Filter Capabilities Using Least Mean Mixed-norm (lmmn)-based Adaptive Filtering Method

This paper deals with the control of single-stage single-phase grid-tied solar photovoltaic (SPV) power generation system with a universal active power filter (UAPF) capabilities. The SPVUAPF system is the combination of series voltage source inverters and shunt voltage source inverters (VSIs). Solar power is extracted from the PV panels by means of a boost converter and fed to grid via shunt VSI. The boost converter operates the solar panels at maximum power point. The switching pulses for the boost converter are generated using perturb and observe (P&O) algorithm. Harmonic currents generated by the loads are controlled by using shunt VSI. Shunt VSI provides reactive power compensation. The reference signals required for the control of the shunt and series VSIs of the SPV-UAPF system are estimated using least mean mixed norm (LMMN) adaptive identification algorithm. The performance of the LMMN-based control of SPV-UAPF system with series shunt compensation capabilities is demonstrated using MATLAB/Simulink under various operating conditions such as solar irradiance, voltage sag, voltage swell and current harmonics