### Abstract

Original language | English |
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Title of host publication | IEEE international electric machines and drives conference (IEMDC '03), June 1-4, 2003, Madison, Wisconsin, USA. Vol. 2 |

Place of Publication | Piscataway |

Publisher | Institute of Electrical and Electronics Engineers |

Pages | 805-811 |

ISBN (Print) | 0-7803-7817-2 |

DOIs | |

Publication status | Published - 2003 |

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### Cite this

*IEEE international electric machines and drives conference (IEMDC '03), June 1-4, 2003, Madison, Wisconsin, USA. Vol. 2*(pp. 805-811). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/IEMDC.2003.1210328

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*IEEE international electric machines and drives conference (IEMDC '03), June 1-4, 2003, Madison, Wisconsin, USA. Vol. 2.*Institute of Electrical and Electronics Engineers, Piscataway, pp. 805-811. https://doi.org/10.1109/IEMDC.2003.1210328

**Modelling of a linear PM machine including magnetic saturation and end effects : maximum force to current ratio.** / Polinder, H.; Slootweg, J.G.; Hoeijmakers, M.J.; Compter, J.C.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Modelling of a linear PM machine including magnetic saturation and end effects : maximum force to current ratio

AU - Polinder, H.

AU - Slootweg, J.G.

AU - Hoeijmakers, M.J.

AU - Compter, J.C.

PY - 2003

Y1 - 2003

N2 - The use of linear permanent-magnet (PM) actuators increases in a wide variety of applications because of their high force density, robustness and accuracy. These linear PM motors are often heavily loaded during short intervals of high acceleration, so that magnetic saturation occurs. This paper models saturation and end effects in linear PM motors using magnetic circuit models. The saturating parts of the magnetic circuit are modelled as nonlinear reluctances. Magnetomotive forces represent the currents and the magnets. This paper shows that when saturated, a negative d-axis current increases the force developed by the motor. Although the increase is not large, it is nevertheless useful, because a negative d-axis current also results in a decrease in the amplifier rating. Further, the trajectory for the maximum force to current ratio is derived. The correlation between the calculated and the measured force justifies the model.

AB - The use of linear permanent-magnet (PM) actuators increases in a wide variety of applications because of their high force density, robustness and accuracy. These linear PM motors are often heavily loaded during short intervals of high acceleration, so that magnetic saturation occurs. This paper models saturation and end effects in linear PM motors using magnetic circuit models. The saturating parts of the magnetic circuit are modelled as nonlinear reluctances. Magnetomotive forces represent the currents and the magnets. This paper shows that when saturated, a negative d-axis current increases the force developed by the motor. Although the increase is not large, it is nevertheless useful, because a negative d-axis current also results in a decrease in the amplifier rating. Further, the trajectory for the maximum force to current ratio is derived. The correlation between the calculated and the measured force justifies the model.

U2 - 10.1109/IEMDC.2003.1210328

DO - 10.1109/IEMDC.2003.1210328

M3 - Conference contribution

SN - 0-7803-7817-2

SP - 805

EP - 811

BT - IEEE international electric machines and drives conference (IEMDC '03), June 1-4, 2003, Madison, Wisconsin, USA. Vol. 2

PB - Institute of Electrical and Electronics Engineers

CY - Piscataway

ER -