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Photovoltaic Inverter And Method For Controlling Thereof


The present invention relates to a photovoltaic inverter for converting a direct current (DC) from a photovoltaic array into an alternating current (AC) for an electrical grid, characterized in that: a boost converter; an inverter; a digital signal processor (DSP); a filter; a protection circuit; a transformer; and a sensor circuit. There is also provided a method for controlling the photovoltaic inverter to track a maximum power point tracking (MPPT) voltage comprising the steps of: converting solar radiation into DC voltage; boosting the DC voltage; converting the boost converter output voltage; feeding a reference current from an electrical grid to a digital signal processor (DSP); generating a sinewave pulse width modulation (SPWM); attenuating high frequency signal and passing through low frequency signal; isolating electrical fault; stepping up the photovoltaic inverter voltage; and characterized in that: the reference current is increased for maintaining the output voltage of the boost converter at constant value.

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Energy and Power, Future Global Power Generation, Infrastructure Development: Power

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