High speed electrical generators, application, materials and design

Bartolo, James Borg; Zhang, He; Gerada, David; Lillo, Liliana De; Gerada, Chris

doi:10.1109/wemdcd.2013.6525164

Cited by 40 publications

(17 citation statements)

References 32 publications

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“…In general the simple construction of the Switched Reluctance (SR) machine is attractive for high speed applications, with the potential of the machine being very cheap in a production environment. However, care must be taken to avoid excessive friction and windage losses due to the teethed structure [11]. The main drawback of these types of motors is the need for keeping small air-gap which is undesirable due to the higher windage losses in case of wet rotor machine.…”

Section: Electrical Motor Selectionmentioning

confidence: 99%

Design and optimization of a high power density machine for flooded industrial pump

Al-Timimy¹,

Degano²,

Giangrande³

et al. 2016

2016 XXII International Conference on Electrical Machines (ICEM)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk Φ Abstract --This paper presents the design optimization procedure of a high power-density, permanent magnet synchronous machine for industrial pump applications. The designed machine drives an electric, oil flooded pump. In order to achieve higher torque-density, a fractional slot machine (8 poles, 9 slots) with double layer (concentrated) winding has been selected after a preliminary trade-off study, which considered several slot/pole combinations and winding configurations. The developed machine provides low torque ripple and short end windings, which contribute to lower axial length and higher efficiency. The electromagnetic performances have been evaluated by using finite element method and the lamination geometry has been optimized through a genetic. The final results are presented highlighting the achieved design targets.Index Terms-PMSM, high power density machine, finite element method, Genetic Algorithm (GA) optimization.

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Section: Electrical Motor Selectionmentioning

confidence: 99%

Design and optimization of a high power density machine for flooded industrial pump

Al-Timimy¹,

Degano²,

Giangrande³

et al. 2016

2016 XXII International Conference on Electrical Machines (ICEM)

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“…The rotor has no saliency and so no reluctance torque is produced, this means that obtaining torque in the field weakening region, without excessive currents and voltages is difficult [5,6]. Also the PMs require a retaining sleeve to withstand the high centrifugal forces present at high speeds [7]. While this type of machine gives the high power and torque density required, it is unlikely to meet the high speed voltage and efficiency requirements [7].…”

Section: A Surface Mount Permanent Magnet (Smpm)mentioning

confidence: 99%

“…Also the PMs require a retaining sleeve to withstand the high centrifugal forces present at high speeds [7]. While this type of machine gives the high power and torque density required, it is unlikely to meet the high speed voltage and efficiency requirements [7]. And high performance PMs add considerable cost to machines.…”

Section: A Surface Mount Permanent Magnet (Smpm)mentioning

confidence: 99%

A topology selection consideration of electrical machines for traction applications: towards the FreedomCar 2020 targets

Walker

Galea

Gerada

et al. 2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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This paper details a qualitative comparison between different types of electrical machine for hybrid electric vehicle traction applications. Targets set by the US Department of Energy for the year 2020 are used as goals. Several types of machine for this application will be discussed, focusing on the benefits and challenges of each machine when applied to these targets. Then the machines are compared based on appropriate quality indices relative to general performance characteristics. It is shown that the interior permanent magnet machine is the most suited topology for traction applications with these challenging targets. Two machine designs for these targets are briefly compared at the end of the paper

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“…Hay que tener en cuenta que el concepto de alta velocidad está ligado a un elevado valor de la velocidad periférica o tangencial del rotor, v, (100-300 m/s), y no necesariamente a una elevada velocidad de rotación, n, lo que lleva implícito tener presente el tamaño de la máquina. Aunque diversos tipos de generadores eléctricos rotativos han sido utilizados en el ámbito de las máquinas eléctricas de alta velocidad (Bartolo et al, 2013), este artículo se centra en los generadores síncronos, excluyendo otros tipos de generadores, como los asíncronos y los de reluctancia autoconmutados.…”

Section: Introductionunclassified

Generadores Síncronos de Alta Velocidad: Una Evaluación Crítica

Martínez

Andrada

2017

Inf. tecnol.

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ResumenConsiderando que existen restricciones electromagnéticas, mecánicas y térmicas que condicionan el diseño de las máquinas eléctricas de alta velocidad, se establecen los criterios que conducen a una adecuada selección de la máquina. Además, teniendo en cuenta el estado actual de la tecnología, se presentan los valores críticos en la relación (potencia de salida)/(velocidad de rotación). El artículo se centra en los generadores síncronos de alta velocidad, especialmente en los generadores con imanes permanentes, los alternadores inductores y los alternadores con conmutación de flujo, haciendo hincapié en sus fundamentos constructivos y en sus ventajas e inconvenientes. El análisis se completa con una evaluación crítica que los clasifica, de acuerdo con unos requisitos previamente definidos. Aunque la decisión de la elección final está muy condicionada por la aplicación de interés, puede afirmarse que, en general, los generadores síncronos con imanes permanentes en el rotor constituyen la mejor opción. Palabras clave: máquinas eléctricas de alta velocidad; generadores síncronos; alta frecuencia; alternadores inductores High-Speed Synchronous Generators. A Critical Assessment AbstractConsidering that there are electromagnetic, mechanical and thermal constraints that determine the design of high-speed electrical machines, the criteria that lead to adequate selection of the machine are established in this work. Moreover, taking into account the current state of technology, the critical values in the ratio (output power)/(rotation speed), are presented. The paper focuses on the high-speed synchronous generators, especially in permanent magnet generators, inductor alternators and flux switching alternators, emphasizing their constructive fundamentals and their advantages and disadvantages. The analysis is completed with a critical assessment that classifies them according to previously defined requirements. Although the decision of the final choice is largely determined by the application of interest, it can be said that, in general, synchronous generators with permanent magnets in the rotor are the best option.

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High speed electrical generators, application, materials and design

Cited by 40 publications

References 32 publications

Design and optimization of a high power density machine for flooded industrial pump

Design and optimization of a high power density machine for flooded industrial pump

A topology selection consideration of electrical machines for traction applications: towards the FreedomCar 2020 targets

Generadores Síncronos de Alta Velocidad: Una Evaluación Crítica

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