Patent ID: 8689583

Claim:
A turbocompressor train, comprising: a turbocompressor unit; and a drive unit for driving the turbocompressor unit, the drive unit, comprising: a gas turbine, a generator, and a steam turbine; wherein the steam turbine together with the generator may be coupled to the turbocompressor unit and to the gas turbine by means of a coupling device which includes an overrunning clutch and a clutch exciter, wherein the coupling device is designed in such a way that by the clutch exciter the overrunning clutch may be brought from a disengaged state to an engaged state in which the overrunning clutch is engaged in the event of synchronous speed of the gas turbine and the steam turbine wherein when the overrunning clutch is in disengaged state, the steam turbine is run up until the steam turbine has reached its operating temperature and an operating speed of the turbocompressor unit in order to evaluate a plurality of holding points for stabilizing the steam turbine and wherein the steam turbine is run down to a stationary state prior to bringing the overrunning clutch to the engaged state, and wherein in the event of an increase of rotational speed of the steam turbine and the generator when the overrunning clutch is engaged, the overrunning clutch is autonomously disengaged due to the increase of rotational speed of the steam turbine and the generator, so that the generator may be driven by the steam turbine at a higher rotational speed than the turbocompressor unit can be driven by the gas turbine.