Research on Distributed Parameter Model of Permanent Magnet in Robust Design of Electromagnetic Relay

Huimin LIANG; Jiaxin YOU; Zhaowen CAI; Guofu ZHAI

doi:10.1587/transele.E97.C.1142

Research on Distributed Parameter Model of Permanent Magnet in Robust Design of Electromagnetic Relay

Huimin LIANG, Jiaxin YOU, Zhaowen CAI, Guofu ZHAI

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The reliability of electromagnetic relay (EMR) which contains a permanent magnet (PM) can be improved by a robust design method. In this parameter design process, the calculation of electromagnetic system is very important. In analytical calculation, PM is often equivalent to a lumped parameter model of one magnetic resistance and one magnetic potential, but significant error is often caused; in order to increase the accuracy, a distributed parameter calculation model (DPM) of PM bar is established; solution procedure as well as verification condition of this model is given; by a case study of the single PM bar, magnetic field lines division method is adopted to build the DPM, the starting point and section magnetic flux of each segment are solved, a comparison is made with finite element method (FEM) and measured data; the accuracy of this magnetic field line based distributed parameter model (MFDPM) in PM bar is verified; this model is applied to the electromagnetic system of a certain type EMR, electromagnetic system calculation model is established based on MFDPM, and the static force is calculated under different rotation angles; compared with traditional lumped parameter model and FEM, it proves to be of acceptable calculation accuracy and high calculation speed which fit the requirement of robust design.

Publication: IEICE TRANSACTIONS on Electronics Vol.E97-C No.12 pp.1142-1149

Publication Date: 2014/12/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E97.C.1142

Type of Manuscript: PAPER

Category: Electronic Components

Authors

Huimin LIANG
  Harbin Institute of Technology
Jiaxin YOU
  Harbin Institute of Technology
Zhaowen CAI
  G&A Technologies Co. Ltd.
Guofu ZHAI
  Harbin Institute of Technology

Keyword

magnetic field line based equivalent distributed parameter model (MFDPM), magnetic equivalent circuit method (MEC), analytical method, electromagnetic relay, reliability engineering

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Huimin LIANG, Jiaxin YOU, Zhaowen CAI, Guofu ZHAI, "Research on Distributed Parameter Model of Permanent Magnet in Robust Design of Electromagnetic Relay" in IEICE TRANSACTIONS on Electronics, vol. E97-C, no. 12, pp. 1142-1149, December 2014, doi: 10.1587/transele.E97.C.1142.
Abstract: The reliability of electromagnetic relay (EMR) which contains a permanent magnet (PM) can be improved by a robust design method. In this parameter design process, the calculation of electromagnetic system is very important. In analytical calculation, PM is often equivalent to a lumped parameter model of one magnetic resistance and one magnetic potential, but significant error is often caused; in order to increase the accuracy, a distributed parameter calculation model (DPM) of PM bar is established; solution procedure as well as verification condition of this model is given; by a case study of the single PM bar, magnetic field lines division method is adopted to build the DPM, the starting point and section magnetic flux of each segment are solved, a comparison is made with finite element method (FEM) and measured data; the accuracy of this magnetic field line based distributed parameter model (MFDPM) in PM bar is verified; this model is applied to the electromagnetic system of a certain type EMR, electromagnetic system calculation model is established based on MFDPM, and the static force is calculated under different rotation angles; compared with traditional lumped parameter model and FEM, it proves to be of acceptable calculation accuracy and high calculation speed which fit the requirement of robust design.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E97.C.1142/_p

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@ARTICLE{e97-c_12_1142,
author={Huimin LIANG, Jiaxin YOU, Zhaowen CAI, Guofu ZHAI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Research on Distributed Parameter Model of Permanent Magnet in Robust Design of Electromagnetic Relay},
year={2014},
volume={E97-C},
number={12},
pages={1142-1149},
abstract={The reliability of electromagnetic relay (EMR) which contains a permanent magnet (PM) can be improved by a robust design method. In this parameter design process, the calculation of electromagnetic system is very important. In analytical calculation, PM is often equivalent to a lumped parameter model of one magnetic resistance and one magnetic potential, but significant error is often caused; in order to increase the accuracy, a distributed parameter calculation model (DPM) of PM bar is established; solution procedure as well as verification condition of this model is given; by a case study of the single PM bar, magnetic field lines division method is adopted to build the DPM, the starting point and section magnetic flux of each segment are solved, a comparison is made with finite element method (FEM) and measured data; the accuracy of this magnetic field line based distributed parameter model (MFDPM) in PM bar is verified; this model is applied to the electromagnetic system of a certain type EMR, electromagnetic system calculation model is established based on MFDPM, and the static force is calculated under different rotation angles; compared with traditional lumped parameter model and FEM, it proves to be of acceptable calculation accuracy and high calculation speed which fit the requirement of robust design.},
keywords={},
doi={10.1587/transele.E97.C.1142},
ISSN={1745-1353},
month={December},}

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TY - JOUR
TI - Research on Distributed Parameter Model of Permanent Magnet in Robust Design of Electromagnetic Relay
T2 - IEICE TRANSACTIONS on Electronics
SP - 1142
EP - 1149
AU - Huimin LIANG
AU - Jiaxin YOU
AU - Zhaowen CAI
AU - Guofu ZHAI
PY - 2014
DO - 10.1587/transele.E97.C.1142
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E97-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2014
AB - The reliability of electromagnetic relay (EMR) which contains a permanent magnet (PM) can be improved by a robust design method. In this parameter design process, the calculation of electromagnetic system is very important. In analytical calculation, PM is often equivalent to a lumped parameter model of one magnetic resistance and one magnetic potential, but significant error is often caused; in order to increase the accuracy, a distributed parameter calculation model (DPM) of PM bar is established; solution procedure as well as verification condition of this model is given; by a case study of the single PM bar, magnetic field lines division method is adopted to build the DPM, the starting point and section magnetic flux of each segment are solved, a comparison is made with finite element method (FEM) and measured data; the accuracy of this magnetic field line based distributed parameter model (MFDPM) in PM bar is verified; this model is applied to the electromagnetic system of a certain type EMR, electromagnetic system calculation model is established based on MFDPM, and the static force is calculated under different rotation angles; compared with traditional lumped parameter model and FEM, it proves to be of acceptable calculation accuracy and high calculation speed which fit the requirement of robust design.
ER -