Increasing the energy efficiency of the impulse magnetizing process

Meyer AW, Nolte C, Fischer C, Sauerhofer A, Franke J (2016)

Publication Type: Conference contribution

Publication year: 2016

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 22-26

Conference Proceedings Title: 2016 6th International Electric Drives Production Conference, EDPC 2016 - Proceedings

Event location: Nuremberg

ISBN: 9781509029082

DOI: 10.1109/EDPC.2016.7851309

Abstract

Magnetizing rare earth magnets with high coercivity needs strong magnetic fields. To create the necessary field strength, copper coils are used requiring current strengths of several kA. Since the electrical resistance of copper differs from zero, this also means enormous thermal losses. Hence to reduce the losses and to avoid thermal damage of the coil, only short current pulses are applied generated by a pulse magnetizer. However, the efficiency of the process is very poor and lies in the lower per mil range [2]. The presented paper explains the impulse magnetization process in detail with focus on the losses within the magnetization device. Further different material parameters influencing the saturation field strength, such as conductivity, size and diameter to length ratio are presented and possibilities to improve the energy efficiency are shown.

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How to cite

APA:

Meyer, A.W., Nolte, C., Fischer, C., Sauerhofer, A., & Franke, J. (2016). Increasing the energy efficiency of the impulse magnetizing process. In 2016 6th International Electric Drives Production Conference, EDPC 2016 - Proceedings (pp. 22-26). Nuremberg, DE: Institute of Electrical and Electronics Engineers Inc..

MLA:

Meyer, Alexander Wilhelm, et al. "Increasing the energy efficiency of the impulse magnetizing process." Proceedings of the 6th International Electric Drives Production Conference, EDPC 2016, Nuremberg Institute of Electrical and Electronics Engineers Inc., 2016. 22-26.

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