Patent ID: 8981583
Filing Date: 2015-03-17
Classification: F01K,F02C,F05D,H02P

Abstract:
1. A method for stabilization of a grid system frequency of an electrical grid system, comprising: providing a gas turbine comprising a power turbine on a first side of the gas turbine and a gas generator on a second side of the gas turbine; connecting the power turbine of the gas turbine by way of a first shaft disposed on the first side of the gas turbine to a first generator in a torque-transmitting manner, wherein the first shaft rotates permanently synchronized to the grid system frequency; connecting the gas generator of the gas turbine by way of a second shaft disposed on the second side of the gas turbine to a starter motor that transmits torque to the gas generator, wherein the second shaft rotates permanently at an initiation rotation speed imparted by the starter motor; initiating the gas generator in response to the initiation rotation speed to produce hot gas when there is a sudden power demand that, if not met, would destabilize the grid system frequency in the electrical grid system; and driving the power turbine by the hot gas produced by the gas generator, such that the first generator generates an amount of electricity effective to meet the sudden power demand and thus maintain stability of the grid system frequency in the electrical grid system.