Analysis of the end winding heat transfer variation with altitude in electric motors

Gareth Gilson; S. J. Pickering; D. B. Hann; C. Gerada

doi:10.1109/IECON.2009.5415243

Analysis of the end winding heat transfer variation with altitude in electric motors

Gareth Gilson, S. J. Pickering, D. B. Hann, C. Gerada

Research output: Contribution to conference › Paper › peer-review

9 Citations (Scopus)

Abstract

This paper considers the determination of heat transfer coefficients on the end windings of an electric machine. The correct determination of these coefficients is of importance since they are regularly used in the thermal analysis electric machines. The heat transfer equations for the end windings given in the literature are generally not expressed as correlations of non-dimensional parameters and so do not allow for changes in operating conditions such as the variation in pressure with altitude that is found in electric machines operating in aircraft. A simple correction is proposed to allow for changes in end winding heat transfer with altitude. This may be implemented in software packages such as MotorCAD - for calculating the thermal performance of electric machines.

Original language	English
Pages	2545-2550
Number of pages	6
DOIs	https://doi.org/10.1109/IECON.2009.5415243
Publication status	Published - 2009
Externally published	Yes
Event	35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009 - Porto, Portugal Duration: 3 Nov 2009 → 5 Nov 2009

Conference

Conference	35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009
Country/Territory	Portugal
City	Porto
Period	3/11/09 → 5/11/09

Keywords

Altitude
Electric aircraft
Electric motors
Heat transfer coefficient
Natural and forced convection
Thermal analysis

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/IECON.2009.5415243

Cite this

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title = "Analysis of the end winding heat transfer variation with altitude in electric motors",

abstract = "This paper considers the determination of heat transfer coefficients on the end windings of an electric machine. The correct determination of these coefficients is of importance since they are regularly used in the thermal analysis electric machines. The heat transfer equations for the end windings given in the literature are generally not expressed as correlations of non-dimensional parameters and so do not allow for changes in operating conditions such as the variation in pressure with altitude that is found in electric machines operating in aircraft. A simple correction is proposed to allow for changes in end winding heat transfer with altitude. This may be implemented in software packages such as MotorCAD - for calculating the thermal performance of electric machines.",

keywords = "Altitude, Electric aircraft, Electric motors, Heat transfer coefficient, Natural and forced convection, Thermal analysis",

author = "Gareth Gilson and Pickering, {S. J.} and Hann, {D. B.} and C. Gerada",

year = "2009",

doi = "10.1109/IECON.2009.5415243",

language = "English",

pages = "2545--2550",

note = "35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009 ; Conference date: 03-11-2009 Through 05-11-2009",

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AU - Gilson, Gareth

AU - Pickering, S. J.

AU - Hann, D. B.

AU - Gerada, C.

PY - 2009

Y1 - 2009

N2 - This paper considers the determination of heat transfer coefficients on the end windings of an electric machine. The correct determination of these coefficients is of importance since they are regularly used in the thermal analysis electric machines. The heat transfer equations for the end windings given in the literature are generally not expressed as correlations of non-dimensional parameters and so do not allow for changes in operating conditions such as the variation in pressure with altitude that is found in electric machines operating in aircraft. A simple correction is proposed to allow for changes in end winding heat transfer with altitude. This may be implemented in software packages such as MotorCAD - for calculating the thermal performance of electric machines.

AB - This paper considers the determination of heat transfer coefficients on the end windings of an electric machine. The correct determination of these coefficients is of importance since they are regularly used in the thermal analysis electric machines. The heat transfer equations for the end windings given in the literature are generally not expressed as correlations of non-dimensional parameters and so do not allow for changes in operating conditions such as the variation in pressure with altitude that is found in electric machines operating in aircraft. A simple correction is proposed to allow for changes in end winding heat transfer with altitude. This may be implemented in software packages such as MotorCAD - for calculating the thermal performance of electric machines.

KW - Altitude

KW - Electric aircraft

KW - Electric motors

KW - Heat transfer coefficient

KW - Natural and forced convection

KW - Thermal analysis

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DO - 10.1109/IECON.2009.5415243

M3 - Paper

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SP - 2545

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T2 - 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009

Y2 - 3 November 2009 through 5 November 2009

ER -

Analysis of the end winding heat transfer variation with altitude in electric motors

Abstract

Conference

Keywords

ASJC Scopus subject areas

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