A PV generation system integrating a hysteresis current controlled inverter for stand-alone applications

PV systems are widely preferred as a potential alternate source of energy. This paper proposes a PV generation system which can be used to feed both AC as well as DC loads. The proposed system incorporates a multi-output boost converter that gives three outputs from single input. The multi-output boost converter is controlled using MPPT technique that enables it to function more effectively. From the three outputs, one output feeds DC load, another output is used to charge a battery that helps as back-up supply when the PV output is minimal. The third output is fed to a T-Z source inverter that supplies AC load. The inverter is controlled using hysteresis current control technique that controls the current and also reduces the harmonics present in the output of inverter. The performance of the proposed system is verified through simulation.