Analytical Calculation of the Energy in a Permanent Magnet

¹ Laboratoire de Génie Electrique de Grenoble, G2E Lab, Université Grenoble Alpes, Grenoble, France

² Laboratoire de Génie Electrique de Grenoble, G2E Lab, CNRS, Grenoble, France

³ Laboratoire d’Electronique et d’Electrotechnique Industrielle, Jijel University, Jijel, Algeria

⁴ Laboratoire d’Electronique et d’Electrotechnique Industrielle, Jijel University, Jijel, Algeria

Abstract

The energy in permanent magnet is not a trivial problem because it exist two types of energy: the field energy and the demagnetizing energy. For parallelepiped shape, the magnet energy has been calculated by fully analytical expressions in 3D. The result has been obtained after four successive integrations of Arctangent and Logarithm functions. The analytically calculated energy corresponds to the demagnetization energy in the magnet. The analytical results have been compared with different terms of energy obtained by computation.

KeywordsAnalytical CalculationEnergyPermanent Magnet

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Analytical Calculation of the Energy in a Permanent Magnet

Abstract

References (6)