The SPWM technique is used to produce pure sinusoidal wave of output voltage and current. The control circuit itself generates the required pulse according to the load demand, to get variable output voltage from the inverter by changing the modulation index of unipolar SPWM scheme. [pdf]
In photovoltaic system connected to the grid, the main goal is to control the power that the inverter injects into the grid from the energy provided by the photovoltaic generator. The power quality injecte. [pdf]
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