Special Issue "All-Electric Propulsion Technology for Electrified Aviation"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Electric Vehicles".

Deadline for manuscript submissions: 31 August 2022.

Special Issue Editors

Dr. David Gerada
E-Mail Website
Guest Editor
Power Electronics, Machines and Control Group (PEMC), The University of Nottingham, Nottingham NG7 2RD, UK
Interests: high kW/kg machines; electric propulsion technologies; thermomechanical design; material characterisation
Special Issues and Collections in MDPI journals
Dr. Chengming Zhang
E-Mail Website
Guest Editor
Department of Electrical Engineering, Harbin Institute of Technology, No.92 West Dazhi Street, Harbin city, China
Interests: electric/hybrid aircraft; energy control and management; electric machines

Special Issue Information

Dear Colleagues,

The impact of human aviation activities on the environment is becoming more and more concerning. Passenger aircraft currently account for 2% of the world's CO2 emissions while consuming 13% of fossil fuel burn within the transportation sector. By the 2050s, the proportion of air travel contributing to climate change is forecast to reach 6-10%. Prioritizing environmental protection, green aviation refers to the use of new fuels such as bio-aviation oil in aircraft, the improvement of intelligent manufacturing processes of high-performance composite materials, the adoption of harmless or low-harm new technologies, together with the development and use of high-efficiency, low-pollution or pollution-free propulsion systems. 

This Special Issue will present research activities focused on the innovation of energy technologies and emission reduction technologies for multi-electric/all-electric aircraft, including electrical machines, power electronics, composite materials, propulsion architectures, as well as advanced manufacturing.

Dr. David Gerada
Dr. Chengming Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Electric vehicles/air-ship/aircraft 
  • Power Electronics and Electric Motors 
  • Thermal Management and Optimization of All Electric Propulsion Systems 
  • Battery, Energy Management Systems
  • High Temperature Superconductivity Technology 
  • All Electric Propulsion System Architectures
  • Intelligent Transportation Systems, and Vehicle Security 
  • Materials and Components for other Electrical Vehicles (Sea, Undersea, Air, and Space)
  • Modeling, Simulation, and Control 
  • Codes, Standards, Policies, and Regulations for Aviation Electrification

Published Papers (2 papers)

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Research

Article
Magnetic FEA Direct Optimization of High-Power Density, Halbach Array Permanent Magnet Electric Motors
Energies 2021, 14(18), 5939; https://doi.org/10.3390/en14185939 - 18 Sep 2021
Viewed by 335
Abstract
Hybrid electric aero-propulsion requires high power-density electric motors. The use of a constrained optimization method with the finite element analysis (FEA) is the best way to design these motors and to find the best solutions which maximize the power density. This makes it [...] Read more.
Hybrid electric aero-propulsion requires high power-density electric motors. The use of a constrained optimization method with the finite element analysis (FEA) is the best way to design these motors and to find the best solutions which maximize the power density. This makes it possible to take into account all the details of the geometry as well as the non-linear characteristics of magnetic materials, the conductive material and the current control strategy. Simulations were performed with a time stepping magnetodynamic solver while taking account the rotor movement and the stator winding was connected by an external electrical circuit. This study describes the magnetic FEA direct optimization approach for the design of Halbach array permanent magnet synchronous motors (PMSMs) and its advantages. An acceptable compromise between precision and computation time to estimate the electromagnetic torque, iron losses and eddy current losses was found. The finite element simulation was paired with analytical models to compute stress on the retaining sleeve, aerodynamic losses, and copper losses. This type of design procedure can be used to find the best machine configurations and establish design rules based on the specifications and materials selected. As an example, optimization results of PM motors minimizing total losses for a 150-kW application are presented for given speeds in the 2000 rpm to 50,000 rpm range. We compare different numbers of poles and power density between 5 kW/kg and 30 kW/kg. The choice of the number of poles is discussed in the function of the motor nominal speed and targeted power density as well as the compromise between iron losses and copper losses. In addition, the interest of having the current-control strategy as an optimization variable to generate a small amount of flux weakening is clearly shown. Full article
(This article belongs to the Special Issue All-Electric Propulsion Technology for Electrified Aviation)
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Article
Compensation of Interpolation Error for Look-Up Table-Based PMSM Control Method in Maximum Power Control
Energies 2021, 14(17), 5526; https://doi.org/10.3390/en14175526 - 04 Sep 2021
Viewed by 341
Abstract
This paper proposes a compensation method for interpolation error of the maximum power control of a PMSM control system that generates current commands through a look-up table. A torque control system using a look-up table created through experiments has superior characteristics, such as [...] Read more.
This paper proposes a compensation method for interpolation error of the maximum power control of a PMSM control system that generates current commands through a look-up table. A torque control system using a look-up table created through experiments has superior characteristics, such as control stability and torque accuracy, compared to a system that executes torque control via a linear controller based on modeling. However, it is impossible to generate information on all the currents for the output torque in the table. Therefore, because the data stored in the look-up table have a discrete characteristic, they are linearly interpolated to generate a current command for the torque command. However, the PMSM current trajectory is generally elliptical, which causes an error owing to linear interpolation, reducing the maximum output power. In particular, when the table data are insufficient, such as in the high-speed operation range, the reduced maximum output cannot be ignored. This paper proposes a compensation method for the interpolation error using two feedforward compensators and a PI controller, which was verified through experiments. Full article
(This article belongs to the Special Issue All-Electric Propulsion Technology for Electrified Aviation)
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