Evaluation of the Magnetic Properties of the Rotating Machines for the Building Factor Clarification

• Autorzy: Oka M. , Kawano M. , Shimada K. , Kai T. , Enokizono M.

Warianty tytułu

PL

Ocena zmiany parametrów magnetycznych blach maszyn elektrycznych w wyniku produkcji rdzenia

• Języki publikacji: EN

Abstrakty

EN

In order to know how much iron loss of an actual stator core increase in each manufacturing process, we are developing the magnetic property evaluation method of a rotating machine. In this research, we prepared two kinds of specimens, including piled up five punched electrical steel sheets that are the shape of the actual stator core and laminated punched electrical steel sheet in the shape of the actual stator core. The specimen of piled up five punched electrical steel sheets is called a punched specimen and the laminated punched electrical steel sheet is called the laminated specimen. The magnetic properties were measured using the excitation coil and the search coil that was wound in the back yoke of the two specimens. This method is called the direct winding method. The evaluated magnetic properties were the iron loss, the coercive force, the residual magnetic flux density, and the maximum excitation magnetic field strength. The experimental results showed that these measured magnetic properties clearly depended on the manufacturing process, such as the laminating process. The iron loss was increased by the laminating process by about 4.7% when the maximum excitation magnetic flux density (Bex) is 1.35 T. In this paper, the influence that the laminating process exerts on magnetic properties of an actual stator core is reported in detail.

PL

Zbadano jak zmieniają się straty magnetyczne rdzenia stojana w wyniku procesu produkcji. W tym celu zbadano próbki w kształcie blach stojana. Badano straty, koercję, indukcję i natężenie pola magnetycznego. Stwierdzono, że parametry te bardzo zależą od procesu produkcji rdzenia. W wyniku laminowania straty wzrosły o 4.7% przy indukcji 1.35 T.

Słowa kluczowe

EN

rotating machine; stator core; iron loss; coercive force; residual magnetic flux density; silicon steel sheet; electrical technology; electrical power engineering

PL

maszyny elektyryczne; straty; rdzeń stojana; elektrotechnika; elektroenergetyka

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 9b
• Strony: 43--46
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Oka M.

autor

Kawano M.

autor

Shimada K.

autor

Kai T.

autor

Enokizono M.

• Oita National College of Technology, 870-0152, 1666 Maki Oita City Japan,

Bibliografia

• [1] K.Yamamoto, E. Shimomura, K. Yamada, T. Sasaki, Effects of External Stress on Magnetic Properties in Motor Cores, Transactions of The Institute of Electrical En-gineers of Japan, Vol.17-A (1997), No.3.
• [2] C. Kaido, H. Moge, K. Hanzawa, The Effect of Short Circuit between Laminated Steel Sheets on the Performance of Lamination Core of Motor, Transactions of The Institute of Electrical Engineers of Japan, Vol.123-A (2003), No.9, pp.857- 862.
• [3] T. Takabayashi, Y. Ishihara and T. Todaka, Study of Measurement Method of Ring Specimen using the yoke, The Papers of Technical Meeting on Magnetics, IEE Japan (2005) MAG-05-112, p.51-56.
• [4] K. Senda, M. Kawano and M. Ishida, Analysis of Core Magnetic Property Deterioration by Interlocking, The Papers of Technical Meeting on Magnetics, IEE Japan (2005) MAG-05- 42, p. 21-26.
• [5] M. Oka, O. Nakazaki, T. Kanda and M. Enokizono, Measurement of Material Properties of Actual Electrical Steel Stator Core to Achieve High Efficiency of Rotating Machines, Bulletin of Topical Symposium of the Magnetic Society of Japan (2008), pp. 27-32.
• [6] M. Oka, T. Kanada, T. Kai, M. Enokizono, Iron Loss Evaluation for Improvement of a Building Factor of a Rotating Machine, Proceedings of 21th Symposium on Electromagnetics and Dynamics (2009), pp. 311-316.
• [7] M. Oka, T. Kai, M. Enokizono, Examination of the Iron Loss Evaluation Method for the Actual Stator Core, Proceedings of 18th Symposium on Electromagnetics and Dynamics (2009), pp. 147-150.
• [8] M. Oka, T. Kai, M. Enokizono, Influence of Processing on the Magnetic Properties of the Actual Stator core, Proceedings of 22th Symposium on Electromagnetics and Dynamics (2010), pp. 386-391.