ACTIVE AND REACTIVE POWER CONTROL OF GRID CONNECTED PHOTOVOLTAIC SYSTEM (original) (raw)

The paper presents a control scheme which controls the active and reactive power flow from the photovoltaic system to grid connected load for single stage. Control scheme is implemented in such a manner that it provides maximum active power from the PV module and reactive power as per the requirement of the load only. Photovoltaic module simulation is done using the basic equation. Photovoltaic module is taken as a current source supplying maximum power at constant voltage technique. To study the effect of solar irradiation variation on the output power flow from photovoltaic system to grid. Reactive power is independent of the solar irradiation. Passive filter is used to reduce the harmonic produced by two level inverter.