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Aerospace 2018, 5(1), 21;

Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion

School of Engineering and Material Science, Queen Mary, University of London, London E14NS, UK
Received: 15 December 2017 / Revised: 6 February 2018 / Accepted: 12 February 2018 / Published: 22 February 2018
(This article belongs to the Special Issue Electric Aircraft)
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In this paper, the methodology of how a dynamic model of a conventional permanent magnet synchronous motor (PMSM) may be modified to model the dynamics of a high-temperature superconductor (HTS) machine is illustrated. Simulations of a typical PMSM operating under room temperature conditions and also at temperatures when the stator windings are superconducting are compared. Given a matching set of values for the stator resistance at superconducting temperature and flux-trapped rotor field, it is shown that the performance of the HTS PMSM is quite comparable to a PMSM under normal room temperature operating conditions, provided the parameters of the motor are appropriately related to each other. From these simulations, a number of strategies for operating the motor so as to get the propeller to deliver thrust with maximum propulsive efficiency are discussed. It is concluded that the motor–propeller system must be operated so as to deliver thrust at the maximum propulsive efficiency point. This, in turn, necessitates continuous tracking of the maximum propulsive efficiency point and consequently it is essential that the controller requires a maximum propulsive efficiency point tracking (MPEPT) outer loop. View Full-Text
Keywords: synchronous motor; superconductivity; high-temperature superconductor; dynamic modeling synchronous motor; superconductivity; high-temperature superconductor; dynamic modeling

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Vepa, R. Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion. Aerospace 2018, 5, 21.

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