Patent ID: 7449795
Filing Date: 2008-11-11
Classification: F01D,F02C,F05D

Abstract:
1. An electric power generation system comprising: a combustion turbine; a main generator connected to the combustion turbine along a common shaft; an exciter device connected to the main generator; a dynamoelectric machine connected to the combustion turbine and the main generator along the common shaft; and a drive electrically coupled to the dynamoelectric machine, said drive being configured to generate a variable frequency signal for causing motoring action in said dynamoelectric machine, wherein said dynamoelectric machine operates as a starter for starting the combustion turbine from an initial condition to a desired rotational speed, upon said combustion turbine reaching an operating condition, said dynamoelectric machine being responsive to mechanical energy from the combustion turbine passed by the common shaft, said mechanical energy causing an electrical generating action in said dynamoelectric machine, wherein said dynamoelectric machine operates as a power source for providing a supply of electrical power to said exciter device, said supply of electrical power being independent of an electrical power grid.