Patent ID: 6055163
Filing Date: 2000-04-25
Classification: H02J,H02M,Y02E,Y04S

Abstract:
A system for remotely controlling a line power unit that delivers electrical power to a grid from a electrical power source, comprising:said line power unit including a full wave rectifier connected to the electrical power source, said full wave rectifier converting a three phase AC voltage from the electrical power source to a DC voltage;a DC bus connected to the output of said full wave rectifier;an inverter connected to said DC bus, said inverter functioning as a current source and transforming the DC voltage to a controlled three phase alternating voltage;an inductor unit connected to the output of said inverter;a first contactor unit selectively connecting and disconnecting said inductor unit to and from the grid;a line power unit controller connected to said inverter and a power level command input;an external interface connected to an external communication device communicating data and command signals to and from a remote terminal; andan I/O controller connected to said external interface and said line power unit controller, said I/O controller receiving data signals from said line power unit and controlling and routing the data signals to the remote terminal via said external interface;said I/O controller receiving command signals from the remote terminal via said external communication device and routing the control signals to said line power unit controller, said line power unit controller receiving a power level command from said I/O controller and controlling said inverter to transform the DC voltage to a controlled three phase alternating voltage having the commanded power level.