Determination of three-dimensional force distribution on soft magnetic powder composite electrical machine cores (abstract)

S. Gair, S. J. Yang

Research output: Contribution to journalArticle

Abstract

The paper presents three new aspects to the design and analysis of electrical machines in general, and the manufacture of small electrical machines which utilize new powder-metallurgical, soft-magnetic-core material in particular. First, a comparison of the Maxwell-stress and Poynting-vector methods of determining power-flow conditions in electrical machines is made. Calculations are based on three-dimensional (3D) field data, which include the full harmonic spectra due to excitation and load conditions, conductor slotting, and winding factors. The method employed to obtain the 3D field data is based on a new computed tomography technique in which the spatial distribution of the fields are accurately obtained in the air gap of the machine. The machines studied in the investigation are characterized by the use of soft magnetic powder-metallurgical core materials used in their construction. A detailed appraisal of the properties of these new powder-metallurgical materials and examples of their use in small electrical drives will be given in the paper. The method of force calculation adopted, together with the use of new soft magnetic materials, has resulted in a significant advance for the manufacture of small electrical machines.

Original languageEnglish
Pages (from-to)4741-
JournalJournal of Applied Physics
Volume67
Issue number9
DOIs
Publication statusPublished - 1990

Fingerprint

force distribution
composite materials
magnetic cores
magnetic materials
spatial distribution
conductors
tomography
harmonics
air
excitation

Cite this

@article{c13b17d3c6f543129baac7b4fab24d76,
title = "Determination of three-dimensional force distribution on soft magnetic powder composite electrical machine cores (abstract)",
abstract = "The paper presents three new aspects to the design and analysis of electrical machines in general, and the manufacture of small electrical machines which utilize new powder-metallurgical, soft-magnetic-core material in particular. First, a comparison of the Maxwell-stress and Poynting-vector methods of determining power-flow conditions in electrical machines is made. Calculations are based on three-dimensional (3D) field data, which include the full harmonic spectra due to excitation and load conditions, conductor slotting, and winding factors. The method employed to obtain the 3D field data is based on a new computed tomography technique in which the spatial distribution of the fields are accurately obtained in the air gap of the machine. The machines studied in the investigation are characterized by the use of soft magnetic powder-metallurgical core materials used in their construction. A detailed appraisal of the properties of these new powder-metallurgical materials and examples of their use in small electrical drives will be given in the paper. The method of force calculation adopted, together with the use of new soft magnetic materials, has resulted in a significant advance for the manufacture of small electrical machines.",
author = "S. Gair and Yang, {S. J.}",
year = "1990",
doi = "10.1063/1.344797",
language = "English",
volume = "67",
pages = "4741--",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "9",

}

Determination of three-dimensional force distribution on soft magnetic powder composite electrical machine cores (abstract). / Gair, S.; Yang, S. J.

In: Journal of Applied Physics, Vol. 67, No. 9, 1990, p. 4741-.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Determination of three-dimensional force distribution on soft magnetic powder composite electrical machine cores (abstract)

AU - Gair, S.

AU - Yang, S. J.

PY - 1990

Y1 - 1990

N2 - The paper presents three new aspects to the design and analysis of electrical machines in general, and the manufacture of small electrical machines which utilize new powder-metallurgical, soft-magnetic-core material in particular. First, a comparison of the Maxwell-stress and Poynting-vector methods of determining power-flow conditions in electrical machines is made. Calculations are based on three-dimensional (3D) field data, which include the full harmonic spectra due to excitation and load conditions, conductor slotting, and winding factors. The method employed to obtain the 3D field data is based on a new computed tomography technique in which the spatial distribution of the fields are accurately obtained in the air gap of the machine. The machines studied in the investigation are characterized by the use of soft magnetic powder-metallurgical core materials used in their construction. A detailed appraisal of the properties of these new powder-metallurgical materials and examples of their use in small electrical drives will be given in the paper. The method of force calculation adopted, together with the use of new soft magnetic materials, has resulted in a significant advance for the manufacture of small electrical machines.

AB - The paper presents three new aspects to the design and analysis of electrical machines in general, and the manufacture of small electrical machines which utilize new powder-metallurgical, soft-magnetic-core material in particular. First, a comparison of the Maxwell-stress and Poynting-vector methods of determining power-flow conditions in electrical machines is made. Calculations are based on three-dimensional (3D) field data, which include the full harmonic spectra due to excitation and load conditions, conductor slotting, and winding factors. The method employed to obtain the 3D field data is based on a new computed tomography technique in which the spatial distribution of the fields are accurately obtained in the air gap of the machine. The machines studied in the investigation are characterized by the use of soft magnetic powder-metallurgical core materials used in their construction. A detailed appraisal of the properties of these new powder-metallurgical materials and examples of their use in small electrical drives will be given in the paper. The method of force calculation adopted, together with the use of new soft magnetic materials, has resulted in a significant advance for the manufacture of small electrical machines.

UR - http://www.scopus.com/inward/record.url?scp=36549101286&partnerID=8YFLogxK

U2 - 10.1063/1.344797

DO - 10.1063/1.344797

M3 - Article

VL - 67

SP - 4741-

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 9

ER -