To provide fixed output DC voltage and approaching full system utilization, the PV system is equipped with a battery bank, electrolyzer as a dump load, and buck-boost converter, with two controllers. A new maximum power point tracking (MPPT) approach integrating the incremental conductance algorithm and fuzzy logic control, and enhanced with PI-controller, was proposed to track maximum power. The current publication is directed to achieve a high-performance stand-alone PV system having the capability of tracking maximum output power, providing fixed output DC voltage, and attaining efficient system utilization, under different irradiation levels.
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