Protection system for aircraft electric propulsion motor and motor controller
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United States of America
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Jul 2, 2024
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N/A
app pub date -
Jul 9, 2021
filing date -
Jul 9, 2021
priority date (Note) -
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Abstract
A method for protecting an electric propulsion system in response to occurrence of a fault. The method includes the step of activating short circuits in power switches of inverters in a motor controller to redirect current regenerated by a motor which is electrically coupled to the motor controller and mechanically coupled to a propeller. The method further includes feathering the propeller while the motor is regenerating current. The protection logic is designed to address different types of faults, including faults in the high-voltage direct-current bus, faults in the motor controller, and faults in the motor.
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