Voltage oriented controller using dual loops control for power flow in distributed generation network

This paper explains the control techniques that have been applied to the 3-phase inverter for a grid connected system. The H^∞ current control strategy with the Voltage Oriented Controller (VOC) with power control have been used together, in order to respond to the power required by the grid. The VOC control consists of a real and reactive power control with feedforward dc-voltage control. A simple synchronization method has been used in order to allow the power flow from the inverter to the grid can be achieved. Finally, the simulation results show, the proposed control strategies are able to control the power flow based to the reference power where the proposed controller generates around 5% of low power error signal.