Fault Tolerant Multi-phase Permanent Magnet Synchronous Motor for the More Electric Aircraft

Electric motors are the most important element in the implementation of the more electric aircraft concept, performing extremely important and crucial functions associated with the flight of the aircraft (control of critical surfaces and rudders, fuel feed and pumping, etc.). Aircraft electric motors are subject to particularly stringent requirements for reliability and resistance to external factors, as well as high requirements for the minimum mass. Therefore, multiphase permanent magnet electric motors are widely used in the aviation industry. By increasing the number of phases, reliability is significantly increased. This chapter analyzes the requirements for permanent magnet electric motors applicable to various aircraft systems, discusses and compares various motor designs, and also describes a multidisciplinary design approach, which is verified by the example of a permanent magnet electric motor for fuel pump of an aircraft engine. The chapter also describes the parameters of such an electric motor and an experimental prototype.

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