High-Speed Electric Machines: Challenges and Design Considerations

Li, Silong; Li, Yingjie; Choi, Woo-Young; Sarlioglu, Bulent

doi:10.1109/tte.2016.2523879

Cited by 129 publications

(28 citation statements)

References 75 publications

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“…High-frequency operations could also contribute to the size and weight reduction of electric machines. However, the increase in core losses, copper losses, losses in sleeve materials, magnet eddy current losses and also mechanical stress on the machine has to be considered [117], [118]. Electric machines in transportation applications also require operation under variable speeds.…”

Section: A Advancement and Challenges Of Magnetics In E-mobilitymentioning

confidence: 99%

E-Mobility — Advancements and Challenges

et al. 2019

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Mobile platforms cover a broad range of applications from small portable electric devices, drones, and robots to electric transportation, which influence the quality of modern life. The end-to-end energy systems of these platforms are moving toward more electrification. Despite their wide range of power ratings and diverse applications, the electrification of these systems shares several technical requirements. Electrified mobile energy systems have minimal or no access to the power grid, and thus, to achieve long operating time, ultrafast charging or charging during motion as well as advanced battery technologies are needed. Mobile platforms are space-, shape-, and weight-constrained, and therefore, their onboard energy technologies such as the power electronic converters and magnetic components must be compact and lightweight. These systems should also demonstrate improved efficiency and cost-effectiveness compared to traditional designs. This paper discusses some technical challenges that the industry currently faces moving toward more electrification of energy conversion systems in mobile platforms, herein referred to as E-Mobility, and reviews the recent advancements reported in literature. INDEX TERMS Battery technology, fast charging, high-frequency magnetic materials, high-power-density converters, hybridized battery systems, more electric powertrains, wireless charging. I. INTRODUCTION Next-generation mobile platforms, ranging from handheld devices, mobile robots, and drones to automobiles, aircraft, and ships, require small, light, cost-effective, and longer operating energy systems to meet more aggressive mission profiles [1]-[3]. At the same time, most of these mobile platforms are moving toward more electrification, i.e., electrified-mobility (E-Mobility), if not fully there already. E-Mobility, herein, refers to more electrification of energy conversion systems in mobile platforms. E-Mobility opens new opportunities to meet the required energy system objectives, while also presenting new challenges. As an example The associate editor coordinating the review of this manuscript and approving it for publication was Xiaosong Hu .

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Section: A Advancement and Challenges Of Magnetics In E-mobilitymentioning

confidence: 99%

E-Mobility — Advancements and Challenges

et al. 2019

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“…Por fim, a temperatura interna do motor também tem sido um fator importante na hora de projetar peças que irão ser utilizados em sistemas FIS, pois devido ao aumento de pressão, também ocorrerá o aumento de temperatura, se fazendo necessário o uso de bons equipamentos de refrigeração e materiais cada vez mais resistentes à altas temperaturas [15].…”

Section: Motores De Ciclo Ottounclassified

Utilização do turbo compressor em motores de combustão interna e seus benefícios

Santos¹,

Silva²,

Moreira³

et al. 2019

Blucher Engineering Proceedings

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RESUMOA sociedade moderna tem se tornado, intrinsecamente, dependente de veículos automotores, que em sua maior parte utilizam motores de combustão interna para transformar energia proveniente de reações químicas em energia mecânica, gerando movimento. Como este tipo de conversão gera poluentes, os problemas causados pelo excesso de gases liberados na atmosfera têm se tornado cada vez mais graves, resultando em diversos danos ambientais e de saúde pública em escala global. Tendo em vista tal problema, este trabalho visa realizar um estudo abordando o uso de turbo compressores em motores de pequeno porte presentes em veículos de passeio, aumentando sua potência, com baixo consumo de combustíveis e emissão de gases poluentes, o que gera vantagens para o meio ambiente e satisfação ao consumidor final. Este estudo propõe também uma contribuição para o entendimento do funcionamento técnico do sistema de indução forçada (FIS), no qual o turbo compressor é baseado, analisando as vantagens de sua aplicação e até mesmo possíveis problemas e desafios para a utilização do mesmo.

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“…A carbon fiber retaining sleeve is added, in order to secure the rotor operation. Carbon has a high resistivity, strongly limiting the sleeve losses when compared to metal sleeves such as Inconel [8].…”

Section: B Rotormentioning

confidence: 99%

A high reliability natural convection airliner actuator permanent magnet motor

Bernot

2016

2016 XXII International Conference on Electrical Machines (ICEM)

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This paper investigates the opportunity of making a natural convection permanent magnet motor for an airliner high lift actuator. The motor is designed to have a maximum lifespan and reliability: removing liquid or forced air cooling removes a fault source. A winding with fully segregated phases is chosen to minimize phase-to-phase winding faults due to partial discharges that may appear at low pressures (high altitudes). A thermal analysis of the power that can be dissipated by natural convection and radiation is conducted. A two-pole surface-mounted permanent magnet motor is finally designed and optimized with a finite elements method analysis, leading to a motor ten times longer than its forced air cooling counterpart.

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High-Speed Electric Machines: Challenges and Design Considerations

Cited by 129 publications

References 75 publications

E-Mobility — Advancements and Challenges

E-Mobility — Advancements and Challenges

Utilização do turbo compressor em motores de combustão interna e seus benefícios

A high reliability natural convection airliner actuator permanent magnet motor

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