CALCULATION OF COGGING FORCE IN PERMANENT MAGNET LINEAR MOTOR USING ANALYTICAL AND FINITE ELEMENT METHODS

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ZARE M.R.; MARZBAND M.

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Paper Information

Journal: Majlesi Journal of Electrical Engineering Year:2010 | Volume:4 | Issue:4 (15) Page(s): 42-47

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Information Journal Paper

Title

CALCULATION OF COGGING FORCE IN PERMANENT MAGNET LINEAR MOTOR USING ANALYTICAL AND FINITE ELEMENT METHODS

Author(s)

ZARE M.R. | MARZBAND M. | Issue Writer Certificate

Keywords

LINEAR BRUSHLESS PERMANENT MAGNET MOTOR

COGGING FORCE

THRUST FORCE

ANALYTICAL METHODS

FINITE ELEMENT METHOD

Abstract

In a permanent magnet (PM) linear motor, there is a force ripple which is detrimental to positioning. This force ripple is mainly due to a COGGING FORCE and a mutual force ripple. These forces are affected by the geometric parameters of a brushless PM motor, such as the width of the magnet, the height of the magnet, the shifted ength of the magnetic pole, the length and height of the armature and the slot width. The optimal design can be found by considering force ripple as a cost function and the geometric parameters as design variables. In this paper, we calculate the flux density distribution in the air gap using the analytic solution of Laplace and Possion equations in the function of geometric parameters. The COGGING FORCE is obtained by integrating the Maxwell stress tensor, which is described by the flux density distribution on the slot face and end face of the iron core of an armature. Finally, a FINITE ELEMENT METHOD is presented in order to compare with the previous method.

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APA: Copy

ZARE, M.R., & MARZBAND, M.. (2010). CALCULATION OF COGGING FORCE IN PERMANENT MAGNET LINEAR MOTOR USING ANALYTICAL AND FINITE ELEMENT METHODS. MAJLESI JOURNAL OF ELECTRICAL ENGINEERING, 4(4 (15)), 42-47. SID. https://sid.ir/paper/572653/en

Vancouver: Copy

ZARE M.R., MARZBAND M.. CALCULATION OF COGGING FORCE IN PERMANENT MAGNET LINEAR MOTOR USING ANALYTICAL AND FINITE ELEMENT METHODS. MAJLESI JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2010;4(4 (15)):42-47. Available from: https://sid.ir/paper/572653/en

IEEE: Copy

M.R. ZARE, and M. MARZBAND, “CALCULATION OF COGGING FORCE IN PERMANENT MAGNET LINEAR MOTOR USING ANALYTICAL AND FINITE ELEMENT METHODS,” MAJLESI JOURNAL OF ELECTRICAL ENGINEERING, vol. 4, no. 4 (15), pp. 42–47, 2010, [Online]. Available: https://sid.ir/paper/572653/en

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