Optimized PFoPID Control Design of Grid Connected PV Inverter for MPPT

Maximum Power Point Tracking (MPPT) is a widely used controlling technique for extracting more power from solar cells of PV modules.This work intends to model a new "passive fractional-order proportional-integral-derivative (PFoPID) controller" for PV inverter by reshaping energy, such that the MPPT is achieved via P&O system under varied atmospheres.As per the passivity concept, storage associated with the DC-link current, voltage, and q-axis current is modeled for a PV system and they are examined systematically.In this work, the residual energy is reshaped by the PFoPID controller, where the controlling parameters are tuned optimally by Grey Wolf Optimization with Self-adaptiveness (GWO-SA) approach.Finally, evaluation is performed for substantiating the efficiency of the GWO-SA based PFoPID controller over other controllers.