Nonlinear controller for stand-alone PV system

The present work describes the analysis, modeling and control of a Boost-Buck power inverter used as a DC-DC and DC-AC power conditioning stage for autonomous photovoltaic (PV) systems. To maximize the steady-state input-output energy transfer ratio a backstepping controller is designed to produce balanced three phase voltage, extract and transfer a maximum Power extracted from photovoltaic generator. The achievement of the DC-AC conversion and the efficient PV's energy extraction are validated with simulation results.

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