Patent ID: 11952139
Assignee: ROLLS-ROYCE CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A method of operating an aircraft electric propulsion system comprising:
energizing a power supply bus with a generator power source, a stored energy power source or a combination thereof;
supplying power from the power supply bus to an electric propulsor of an aircraft;
controlling, with a controller circuitry, a voltage magnitude on the power supply bus to a first predetermined voltage;
monitoring an altitude of the aircraft, the altitude being a measured dynamic value indicative of a distance of the aircraft above sea level;
monitoring, with the controller circuitry, an output thrust of the electric propulsor;
controlling, with the controller circuitry, the voltage magnitude on the power supply bus according to the altitude of the aircraft by dynamically adjusting a weighting applied to a set point of the voltage magnitude according to the output thrust of the electric propulsor; and
decreasing the voltage magnitude as the aircraft increases in altitude.