Electromagnetic Design of Superconducting Synchronous Motors for Electric Aircraft Propulsion

Terao, Yutaka; Kong, Weilu; Ohsaki, Hiroyuki; Oyori, Hitoshi; Morioka, Noriko

doi:10.1109/tasc.2018.2823503

Cited by 58 publications

(24 citation statements)

References 8 publications

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“…Using the Equations (14) and (15), the heat transfer coefficients are calculated for an altitude of 100 m and for an appropriate speed of air stream. The solution of thermal problem (16) with the FEA gives the temperature distribution in the main part of the motor. If the maximum temperatures satisfy the imposed maximum value in resin and in the windings, a new element of the initial population is found.…”

Section: Of 22mentioning

confidence: 99%

“…The researches [11] are carried out with the goal to increase the power density, the reliability and the efficiency. Many types of electrical machines are considered: 2 of 22 induction motor [12,13], permanent magnet synchronous motor [14] (the most utilized), and traditional synchronous machine above all with superconducting characteristics [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Optimization Methodology of PMSM Cooled by External Convection in Aircraft Propulsion

Noia¹,

Piegari

Rizzo³

2020

Energies

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Nowadays, the reduction of aircraft emissions is one of the industrial targets with a horizon time until 2050. The recent progresses in electrical drives give the opportunity to modify the aircraft propulsion based on thermal engine or gas turbine to a hybrid/full electric one. Some problems must be solved: weight, reliability, and the choice of the best configuration for the electric propulsion. One of the most important aspects to solve is the thermal behavior of power converters and electric motors. This paper proposes an optimization procedure for the design of surface permanent magnet motors used for the aircraft propulsion: the aim of the paper is to investigate the possibility of cooling the motor with only the air flow due to the aircraft speed. The optimization procedure has been solved with the integration of analytical model and finite element analysis and using a differential evolution algorithm.

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Section: Of 22mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization Methodology of PMSM Cooled by External Convection in Aircraft Propulsion

Noia¹,

Piegari

Rizzo³

2020

Energies

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“…However, the high electric load will lead to more winding loss, while high speed and high magnetic load can cause more iron‐core loss, which may need an additional cooling system for the safe operation. In order to make up for the bad effect brought by this method, superconducting machines have been studied in aerospace application to reduce the winding loss [9, 10]. However, fully superconducting machines are still not a mature technology.…”

Section: Introductionmentioning

confidence: 99%

Design study of an aerospace motor for more electric aircraft

Fang

Wang

Liu

2020

IET Electric Power Applications

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This study proposes an improved power density permanent magnet synchronous motor (PMSM) for more electric aircraft (MEA) and conducts a design study on aerospace motors. To improve the power density of PMSM, a dual permanent magnet structure using high-temperature resistant high-performance permanent magnets and high-performance soft magnetic alloy material is creatively designed. Methods of lightweight structure designed in both stator and rotor meanwhile are combined as another mean to increase power density. The optimisation models for 6-slot/8-pole and 12-slot/10-pole configurations are first established based on finite element analysis. Methods of improving the power density of PMSM are then given, including minimum core back yoke thickness and lightweight structure design. The electromagnetic characteristics of the optimised machine are analysed by finite element analysis software, including back electromotive force (back-EMF), inductance, and power loss. The configuration of 12-slot/10-pole is selected as the best design scheme for MEA, based on which a prototype is manufactured and tested. The experiment results of cogging torque and line back-EMF are in good agreement with the simulation results, which shows the rationality of the designed new machine. The design proves to be effective for improving the power density of aerospace motors.

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“…Thus a study is being conducted here on the use of superconductors for electrical machines. In the literature, several researches were done concerning the superconducting machine in aeronautics [2]- [6]. The aim of this paper is to develop a fast analytical model to be implemented in an optimization procedure to reach the higher power-to-mass ratio.…”

Section: Introductionmentioning

confidence: 99%

Analytical Model for the Magnetic Field Distribution in a Flux Modulation Superconducting Machine

et al. 2019

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This paper presents a theoretical analysis of an axial field machine using High Temperature Superconductors (HTS) wires and bulks. The air-gap magnetic field obtained with the HTS coil and modulated by the HTS bulks is predicted by two 2D axisymmetric models. Analytical models are based on the solution of Laplace's equation by the separation of variable method. The torque is obtained by a quick numerical integration of the Laplace force that acts on the armature winding. The proposed model is compared with 3D finite element simulations and good agreement is obtained. This model can be used with an optimization design procedure with a large reduction of the computational time.

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Electromagnetic Design of Superconducting Synchronous Motors for Electric Aircraft Propulsion

Cited by 58 publications

References 8 publications

Optimization Methodology of PMSM Cooled by External Convection in Aircraft Propulsion

Optimization Methodology of PMSM Cooled by External Convection in Aircraft Propulsion

Design study of an aerospace motor for more electric aircraft

Analytical Model for the Magnetic Field Distribution in a Flux Modulation Superconducting Machine

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