This paper proposes the control of single-phase split-source inverter (SSI) for a
standalone PV application using model-predictive control scheme. The PV system under
investigation consists of PV modules, single-phase SSI, battery bank for energy storage, and DCDC
bidirectional converter to allow for bidirectional power flow with the batteries. Maximum
power is extracted from the PV array using PI-based incremental conductance method. Both the
maximum power point tracking of the PV modules and the synthesis of the sinusoidal output load
voltage are achieved using the SSI. The control of the bidirectional converter is carried out using PI
controllers to regulate the DC-link voltage. Selection of the controllers parameters is achieved using
Harris Hawks optimization technique. Simulation results show that the system has succeeded in
producing a constant DC-link voltage and well-regulated AC load voltage with low THD under
various operating conditions. Experimental results verify the system performance. |
