Design control of PEC9 based multifunctional solar active filter

Abstract

This work presents the control design of multifunctional solar active power filter based grid connected PV system, whose architecture basically consisted of utility grid, non linear load and Packed E-Cell inverter with PV ( PV-PEC) generator as renewable source, connected in parallel through the point of common coupling. The system designed to operate as an active power filter ,tofilter the harmonics caused by the non linear load. Based on the modified instantaneous power (PQ ) theory the PV-PEC active power filter extracts the fundamental harmonics componentsfrom the load current to generate a reference current. This reference current is then tracked using a Finite Set Model Predictive Control (FS-MPC) strategy, enabling the system to inject compensating currents into the grid while simultaneously extracting maximum power from the PV source. Moreover, we have investigated a new inverter topology that is the PEC nine level inverter (PEC9). It stands out as a superior choice compared to conventional topologies in terms of power quality improvement, total harmonic distortion reduction reduced switch count, and multilevel voltage production with a propre control.