Patent ID: 11933232
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. The method of claim 1, wherein the hybrid-electric gas turbine engine further includes a second electric machine rotatably coupled to the rotatable second shaft, the method further comprising:
determining a fourth rate of change of thrust attributable to the second electric machine to cooperatively satisfy the change in thrust demand in cooperation with the first rate of change of thrust;
determining a current second clearance between the casing and at least one of the second set of turbine blades and the second set of compressor blades;
determining that operation of the combustor in accordance with the first rate of change of thrust and the second electric machine in accordance with fourth rate of change of thrust will cause the current second clearance to exceed a predetermined second differential threshold;

determining a fifth rate of change of thrust attributable to the second electric machine to satisfy the change in thrust demand in cooperation with the first rate of change of thrust, and not exceed the second differential threshold; and
operating the combustor according to the first rate of change of thrust and operating the second electric machine according to the fifth rate of change of thrust.