Patent ID: 9041257
Filing Date: 2015-05-26
Classification: H01H,H02H,H02J,H02M,Y02E

Abstract:
1. A system for distributing electric power to an electrical distribution grid, comprising: a DC/AC inverter arranged to convert a DC voltage output from a power generator to an AC voltage, a transformer electrically connected to said DC/AC inverter and receiving said AC voltage, said transformer transforming said AC voltage and delivering the transformed AC voltage to the electrical distribution grid, and a connector electrically connected to said transformer and selectively connecting and disconnecting the transformer from the distribution grid, wherein said DC/AC inverter electrically connected to said connector and controlling an increase and a decrease of primary winding magnetizing current delivered to the transformer, and the connector selectively connects and disconnects the transformer to and from the distribution grid on the basis of the controlled magnetizing current, such that the transformer is connected to the distribution grid when the magnetizing current has increased to and stabilized at a certain level where inrush currents are reduced or avoided, and the transformer is disconnected when the magnetizing current has decreased to and stabilized at a certain level where inrush currents are reduced or avoided.