Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion

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 als...

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Main Author: Ranjan Vepa
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Aerospace
Subjects:
Online Access:http://www.mdpi.com/2226-4310/5/1/21
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author Ranjan Vepa
author_facet Ranjan Vepa
author_sort Ranjan Vepa
collection DOAJ
description 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.
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spelling doaj.art-9a583adc9250496da39be28e8a8ccfc02022-12-22T02:05:33ZengMDPI AGAerospace2226-43102018-02-01512110.3390/aerospace5010021aerospace5010021Modeling and Dynamics of HTS Motors for Aircraft Electric PropulsionRanjan Vepa0School of Engineering and Material Science, Queen Mary, University of London, London E14NS, UKIn 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.http://www.mdpi.com/2226-4310/5/1/21synchronous motorsuperconductivityhigh-temperature superconductordynamic modeling
spellingShingle Ranjan Vepa
Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
Aerospace
synchronous motor
superconductivity
high-temperature superconductor
dynamic modeling
title Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
title_full Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
title_fullStr Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
title_full_unstemmed Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
title_short Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion
title_sort modeling and dynamics of hts motors for aircraft electric propulsion
topic synchronous motor
superconductivity
high-temperature superconductor
dynamic modeling
url http://www.mdpi.com/2226-4310/5/1/21
work_keys_str_mv AT ranjanvepa modelinganddynamicsofhtsmotorsforaircraftelectricpropulsion