Patent ID: 6128204
Filing Date: 2000-10-03
Classification: H02J,H02P

Abstract:
A line power unit for controlling electrical power delivery to a grid from a three phase permanent magnet generator, comprising:a full wave rectifier operatively connected to the three phase permanent magnet generator, said full wave rectifier converting a three phase AC voltage from the three phase permanent magnet generator to a DC voltage;a DC bus operatively connected to the output of said full wave rectifier;an inverter operatively connected to said DC bus, said inverter functioning as a current source or as a voltage source and transforming the DC voltage to a controlled three phase alternating voltage;an inductor unit operatively 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 operatively connected to said inverter and a power level command input, said line power unit controller receiving a power level command from the power level command input and controlling said inverter to transform the DC voltage to the controlled three phase alternating voltage having the commanded power level; anda precharge circuit operatively interconnecting the grid and said DC bus, said precharge circuit taking power from the grid to precharge said DC bus to a precharge DC voltage.