Decoupled PQ control applied to a multicellular parallel inverter for grid-connected photovoltaic system

This paper presents the decoupled active and reactive power control (PQ control), using a Phase-Locked Loop (PLL) for synchronization, and applied to the control of Multicellular Parallel Inverter (MPI) for a grid-connected Photovoltaic (PV) system. We explain the value of this multicellular structure of inverter compared to a conventional inverter. We also present and discuss the simulation results obtained using the Matlab software (Simulink and simpowersystems).