This paper presents the design of multi-phase permanent magnet brushless motor for an electrical helicopter tail rotor. The design should guarantee a high reliability because the tail rotor is a safety critical system and should match a given envelope to allow a substitution of the actual mechanisms. In order to obtain high torque maintaining small overall dimensions of the motor, a spoke-type solution with interior PMs has been chosen. The motor performance has been evaluated by the FE analysis in the healthy and faulty mode operations: the performance fully satisfy the requirements at low and high power. The study has been completed with a detailed thermal analysis in order to calculate the temperature in the stator winding and PMs at steady-state imposing the severe duty cycle.

PM brushless motor design for helicopter tail rotor

VILLANI, Marco;PARASILITI COLLAZZO, Francesco;TURSINI, MARCO;FABRI, GIUSEPPE;
2016

Abstract

This paper presents the design of multi-phase permanent magnet brushless motor for an electrical helicopter tail rotor. The design should guarantee a high reliability because the tail rotor is a safety critical system and should match a given envelope to allow a substitution of the actual mechanisms. In order to obtain high torque maintaining small overall dimensions of the motor, a spoke-type solution with interior PMs has been chosen. The motor performance has been evaluated by the FE analysis in the healthy and faulty mode operations: the performance fully satisfy the requirements at low and high power. The study has been completed with a detailed thermal analysis in order to calculate the temperature in the stator winding and PMs at steady-state imposing the severe duty cycle.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/111399
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