On Selecting the Technology for Manufacturing the Stator of Low-Batch and Pilot Electromechanical Power Converters Taking Magnetic Losses into Account
Abstract
Various technologies for manufacturing the stator coresfor pilot electromechanical power converters (laser and electroerosion cutting) areconsidered. Specific lossesatre-magnetization frequenciesup to 2000 Hzare estimated. The investigations werecarriedout with and with out subjecting the samples to thermal treatment. Prospects for using each of the considered technologies are established, and the effectiveness of using them is shown. It is shown thattheuse of the rmaltreatment makes it possible to have specific lossesin the samples obtained by means of laser cutting at the level of specifications for the used magnetically soft material. With a grow thofre-magnetization frequency, the specific losses in the coresobtained by means of electroerosion cutting and without thermal treatment become almost identical with each other. For the studiedcase, thisisobservedat 2000 Hz. Laser cutting with the rmaltreatmentis themostpro mising technology of manufacturing cores for microelectromechanical power converters and for pilot samples provided that the specified cutting conditions are ful filled.
References
Belhadj A., Houbaert Y., De Wulf M., Depret D., BreabanF. Effect of laser cutting on microstructure and magnetic properties of nonoriented electrical steels. — Journal of Magnetism and Magnetic Materials, 2001, vol. 256, pp. 20—31.
Schoppa A., Schneider J., Wuppermann C.D. Influence of manufacturing processes on the magnetic properties of N.O. electrical steels. — Journal of Magnetism andMagnetic Materials, 2000, vol. 215/216, pp. 74—78.
Belhadja A., Baudouinb P., Breabanc F., Deffontainec A., Dewulfd M., Houbaert Y. Effect of laser cutting on microstructure and on magnetic properties of grain non-oriented electrical steels. —Journal of Magnetism and Magnetic Materials, 2003, vol. 256 pp. 20-31.
Loisos G., Anthony J. Effect of mechanical and Nd: YAG laser cutting on magnetic flux distribution near the cut edge of non-oriented steels. — Journal of Materials Processing Technology, 2005, vol. 161 pp. 151-155.
Bulín T., Švábenská E., Hapla M., Ondrùšek È., Schneeweis O. Magnetic Properties and Structure of Non-Oriented Electrical Steel Sheets after Different Shape Processing. — Acta Physica Polonica, vol. 131, pp. 819—821.
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Dickmann K. Influence of the laser cutting process on the magnetic properties of electrical sheets. — Anales de Fisica,1990, vol. 86 pp. 33—45.
Belhadj A., Houbaert Y., De Wulf M., Depret D., BreabanF. Effect of laser cutting on microstructure and magnetic properties of nonoriented electrical steels. — Journal of Magnetism and Magnetic Materials, 2001, vol. 256, pp. 20—31.
Schoppa A., Schneider J., Wuppermann C.D. Influence of manufacturing processes on the magnetic properties of N.O. electrical steels. — Journal of Magnetism andMagnetic Materials, 2000, vol. 215/216, pp. 74—78.
Belhadja A., Baudouinb P., Breabanc F., Deffontainec A., Dewulfd M., Houbaert Y. Effect of laser cutting on microstructure and on magnetic properties of grain non-oriented electrical steels. —Journal of Magnetism and Magnetic Materials, 2003, vol. 256 pp. 20-31.
Loisos G., Anthony J. Effect of mechanical and Nd: YAG laser cutting on magnetic flux distribution near the cut edge of non-oriented steels. — Journal of Materials Processing Technology, 2005, vol. 161 pp. 151-155.
Bulín T., Švábenská E., Hapla M., Ondrùšek È., Schneeweis O. Magnetic Properties and Structure of Non-Oriented Electrical Steel Sheets after Different Shape Processing. — Acta Physica Polonica, vol. 131, pp. 819—821.
