A high-speed, high-frequency, air-core PM machine for aircraft application

Yoon, Andy; Yi, Xuan; Martin, J.M.; Chen, Yuanshan; Haran, Kiruba S.

doi:10.1109/peci.2016.7459221

Cited by 110 publications

(30 citation statements)

References 4 publications

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“…Under the above backdrop, an air-gap winding enabled machine design well suits for high-pole and high frequency machine designs, with provision for reduced iron loss. Besides, if topped up with Halbach arrays to eliminate part of rotor yoke, it improves SP further [200].…”

Section: Electrical Machinementioning

confidence: 99%

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A Review of Concepts, Benefits, and Challenges for Future Electrical Propulsion-Based Aircraft

2020

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Electrification of the propulsion system has opened the door to a new paradigm of propulsion system configurations and novel aircraft designs, which was never envisioned before. Despite lofty promises, the concept must overcome the design and sizing challenges to make it realizable. A suitable modeling framework is desired in order to explore the design space at the conceptual level. A greater investment in enabling technologies, and infrastructural developments, is expected to facilitate its successful application in the market. In this review paper, several scholarly articles were surveyed to get an insight into the current landscape of research endeavors and the formulated derivations related to electric aircraft developments. The barriers and the needed future technological development paths are discussed. The paper also includes detailed assessments of the implications and other needs pertaining to future technology, regulation, certification, and infrastructure developments, in order to make the next generation electric aircraft operation commercially worthy.

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Section: Electrical Machinementioning

confidence: 99%

“…Halbach arrangement improves magnetizing effectiveness improving the SP and achieves higher efficiency [200,202].…”

Section: Pmsmmentioning

confidence: 99%

A Review of Concepts, Benefits, and Challenges for Future Electrical Propulsion-Based Aircraft

2020

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“…Consequently, a weight-effective solution can be achieved for very high-speed applications. In [49], a promising 1 MW slotless machine was designed with an expected power density as high as 13 kW/kg, and 96 % expected efficiency. The advancements in the same direction reached the very first testing phase [50], and more testing results are expected to validate the remarkable potential highlighted in the design stage.…”

Section: ) Power Densitymentioning

confidence: 99%

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

et al. 2020

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More electric aircraft (MEA) architectures consist of several subsystems, which must all comply with the settled safety requirements of aerospace applications. Thus, achieving reliability and fault-tolerance represents the main cornerstone when classifying different solutions. Hybrid electric aircraft (HEA) extends the MEA concept by electrifying the propulsive power as well as the auxiliary power, and thereby pushing the limits of electrification. This paper gives an overview of the high-power electrical machine families and their associated power electronic converter (PEC) interfaces that are currently competing for aircraft power conversion systems. Various functionalities and starter-generator (S/G) solutions are also covered. In order to highlight the latest advancements, the efficiency of the world's most powerful aerospace generator (Mark 1) developed within the E-Fan X HEA project is graphically represented and assessed against other rivaling solutions. Motivated by the strict requirements on efficiency, power density, trustworthiness, as well as starting functionalities, supplementary considerations on the system-level design are paramount. In order to highlight the MEA goals and take advantage of all potential benefits, all subsystems must be treated as a whole. It is then shown that the combination of PECs, aircraft grid and electrical machines can be better adapted to benefit the overall system. This survey outlines the influence of these concerns and offers a view of the future technology outlook, as well as covering the present challenges and opportunities.

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“…Aerospace is the key area that requires substantial improvement in power density. This include More Electric Aircraft (MEA) [11], [12], hybrid/electric propulsion [13]-[14] [15] green taxiing [16], and UAVs and Vertical Takeoff and Landing (VTOL) [17]. Tables II-IV provide a detailed summary of various electrical machines broken down by power ratings.…”

Section: Section II Machines For Land Vehiclesmentioning

confidence: 99%

High specific power electrical machines: A system perspective

El-Refaie

Osama

2017

2017 20th International Conference on Electrical Machines and Systems (ICEMS)

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There has been a growing need for high specific power electrical machines for a wide range of applications. These include hybrid/electric traction applications, aerospace applications and Oil and Gas applications. A lot of work has been done to accomplish significantly higher specific power electrical machines especially for aerospace applications. Several machine topologies as well as thermal management schemes have been proposed. Even though there has been a few publications that provided an overview of high-speed and high specific power electrical machines [1-3], the goal of this paper is to provide a more comprehensive review of high specific power electrical machines with special focus on machines that have been built and tested and are considered the leading candidates defining the state-of-the art. Another key objective of this paper is to highlight the key "system-level" tradeoffs involved in pushing electrical machines to higher specific power. Focusing solely on the machine specific power can lead to a sub-optimal solution at the system-level.

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A high-speed, high-frequency, air-core PM machine for aircraft application

Cited by 110 publications

References 4 publications

A Review of Concepts, Benefits, and Challenges for Future Electrical Propulsion-Based Aircraft

A Review of Concepts, Benefits, and Challenges for Future Electrical Propulsion-Based Aircraft

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

High specific power electrical machines: A system perspective

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