Method for stabilization of the network frequency of an electrical power network

摘要

A method for stabilizing the network frequency of an electrical power network is provided. The network includes at least a two-shaft gas turbine which includes power turbine and a gas generator, wherein the power turbine is connected to a first generator by means of a shaft in a torque transferring manner. Also, an assembly for carrying out the method is provided. The first shaft of the power turbine and the first generator turn permanently synchronized with the power network and the first generator drives the rotation as a motor and a second shaft of the gas generator permanently turns at an ignition speed, wherein the gas generator is ignited upon a power demand and the power turbine is driven by the created hot gas of the gas generator, such that the first generator creates power.

主权项

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.