Patent ID: 6847129
Filing Date: 2005-01-25
Classification: F02C,H02P,Y02E

Abstract:
1. A method of starting a turbine generator using an internal power supply, comprising the steps of: deactivating a pulse-width-modulation inverter for generation connected to the turbine generator; supplying DC power to a pulse-width-modulation inverter for starting from the internal power supply through a DC matching circuit; closing first switching means to connect the starting inverter to the turbine generator; driving the turbine generator up to a purge speed and supplying power from the starting inverter to the turbine generator for acceleration up to a predetermined starting speed; driving gates of the starting inverter in response to a pulse-width-modulated signal received from an inverter control circuit; deactivating the starting inverter after the speed of the turbine generator reaches a predetermined starting speed, and opening the first switching means to isolate the starting inverter from the turbine generator; and activating the generation inverter.