Hybrid cooling method of axial-flux permanent-magnet machines for vehicle applications

M. Polikarpova; P. Ponomarev; P. Lindh; I. Petrov; W. Jara; V. Naumanen; J. A. Tapia; J. Pyrhönen

doi:10.1109/TIE.2015.2465354

Hybrid cooling method of axial-flux permanent-magnet machines for vehicle applications

M. Polikarpova, P. Ponomarev, P. Lindh, I. Petrov, W. Jara, V. Naumanen, J. A. Tapia, J. Pyrhönen

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

Thermal properties are a key issue in many applications associated with electrical machines. Because of its special configuration, an axial-flux electrical machine usually uses self-ventilation. However, this cooling method has a significant impact degrading the machine operating characteristics, and thus, an independent cooling system is desirable. The focus of this paper is on the steady-state thermal modeling and laboratory testing of an axial-flux permanent-magnet (AFPM) electrical machine intended for a traction application. The proposed hybrid cooling arrangement consists of a frame cooling circuit with a water flow inside, a set of copper bars inserted in the teeth, and a segment of potting material around the end windings. Computational fluid dynamics and finite-element analysis are applied for the preliminary design. This paper provides experimental verification of the simulation results on a 100-kW AFPM electrical machine.

Original language	English
Article number	7181673
Pages (from-to)	7382-7390
Number of pages	9
Journal	IEEE Transactions on Industrial Electronics
Volume	62
Issue number	12
DOIs	https://doi.org/10.1109/TIE.2015.2465354
State	Published - 1 Dec 2015
Externally published	Yes

Keywords

Electrical machines
hybrid cooling method
liquid jacket
thermal analysis

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10.1109/TIE.2015.2465354

Cite this

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title = "Hybrid cooling method of axial-flux permanent-magnet machines for vehicle applications",

abstract = "Thermal properties are a key issue in many applications associated with electrical machines. Because of its special configuration, an axial-flux electrical machine usually uses self-ventilation. However, this cooling method has a significant impact degrading the machine operating characteristics, and thus, an independent cooling system is desirable. The focus of this paper is on the steady-state thermal modeling and laboratory testing of an axial-flux permanent-magnet (AFPM) electrical machine intended for a traction application. The proposed hybrid cooling arrangement consists of a frame cooling circuit with a water flow inside, a set of copper bars inserted in the teeth, and a segment of potting material around the end windings. Computational fluid dynamics and finite-element analysis are applied for the preliminary design. This paper provides experimental verification of the simulation results on a 100-kW AFPM electrical machine.",

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AU - Polikarpova, M.

AU - Ponomarev, P.

AU - Lindh, P.

AU - Petrov, I.

AU - Jara, W.

AU - Naumanen, V.

AU - Tapia, J. A.

AU - Pyrhönen, J.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Thermal properties are a key issue in many applications associated with electrical machines. Because of its special configuration, an axial-flux electrical machine usually uses self-ventilation. However, this cooling method has a significant impact degrading the machine operating characteristics, and thus, an independent cooling system is desirable. The focus of this paper is on the steady-state thermal modeling and laboratory testing of an axial-flux permanent-magnet (AFPM) electrical machine intended for a traction application. The proposed hybrid cooling arrangement consists of a frame cooling circuit with a water flow inside, a set of copper bars inserted in the teeth, and a segment of potting material around the end windings. Computational fluid dynamics and finite-element analysis are applied for the preliminary design. This paper provides experimental verification of the simulation results on a 100-kW AFPM electrical machine.

AB - Thermal properties are a key issue in many applications associated with electrical machines. Because of its special configuration, an axial-flux electrical machine usually uses self-ventilation. However, this cooling method has a significant impact degrading the machine operating characteristics, and thus, an independent cooling system is desirable. The focus of this paper is on the steady-state thermal modeling and laboratory testing of an axial-flux permanent-magnet (AFPM) electrical machine intended for a traction application. The proposed hybrid cooling arrangement consists of a frame cooling circuit with a water flow inside, a set of copper bars inserted in the teeth, and a segment of potting material around the end windings. Computational fluid dynamics and finite-element analysis are applied for the preliminary design. This paper provides experimental verification of the simulation results on a 100-kW AFPM electrical machine.

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Hybrid cooling method of axial-flux permanent-magnet machines for vehicle applications

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Keywords

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