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Magnetic Characteristic Analysis of Permanent Magnet Motor with Complex E&S Modeling
Zeze, Shingo,Todaka, Takashi,Enokizono, Masato Journal of International Conference on Electrical 2012 Journal of international Conference on Electrical Vol.1 No.1
This paper presents analyzed results of a permanent magnet motor by using complex E&S modeling. The calculated results are compared with ones from the conventional E&S modeling for verification. Combinations of the numbers of slots and poles are investigated to reduce total iron loss. The results demonstrate that the complex E&S modeling is very useful in design under consideration of rotational magnetic field and magnetic anisotropy.
New Magnetic Field Analysis Considering a Vector Magnetic Characteristic
Shimoji, Hiroyasu,Enokizono, Masato,Todaka, Takashi,Horibe, Toyomi The Korean Institute of Electrical Engineers 2002 KIEE International Transactions on Electrical Mach Vol.b2 No.4
This paper presents magnetic field analysis technology that uses a vector magnetic characteristic. Recently the magnetic material was found to be measurable using the vector quantity technique. Therefore considering the anisotropy of the magnetic material in the vector field analysis is necessary. The magnetic field analysis method, which is considered the anisotropy by combining the finite element method with the E&$S^2$ (Enokizono, Soda, and Shimoji) modeling, is applied to a permanent magnet motor model.
Urata Shinya,Shimoji Hiroyasu,Todaka Takashi,Enokizono Masato The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.3
The Different-volume- V-connection transformer is known as an electric power source that can supply 3-phase electric power and single-phase electric power at the same time. Usually, we use two single-phase transformers that have different volumes. In this paper, we propose the use of a 3-phase 5-leg transformer with the different-volume- V-connection. And, we examine the magnetic properties of the 5-leg core model with the different-volume- V-connection. The magnetic properties of cores with the different-volume- V-connection are compared with those with the delta-connection. In order to express the magnetic anisotropy of the core materials and to calculate the iron loss directly, the two-dimensional vector magnetic property is considered with the E&SS modeling in the simulation.
A New Moving-magnet Type Linear Actuator utilizing Flux Concentration Permanent Magnet Arrangement
Goto, Akira,Okamoto, Takuya,Ikariga, Atsushi,Todaka, Takashi,Enokizono, Masato The Korean Institute of Electrical Engineers 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
This paper presents a moving-magnet type linear actuator designed by using flux concentration type permanent magnet arrangement, which can generate higher magnetic flux density in air-gap. In this construction, detent force which is induced by both slot-effect and end-effect becomes larger due to strong attractive forces. To reduce cogging force we have employed a modular mover structure of two magnetic pole sections connected with a center yoke. The improved motor performance is demonstrated with the prototype machine.
A New Moving-magnet Type Linear Actuator utilizing Flux Concentration Permanent Magnet Arrangement
Akira Goto,Takuya Okamoto,Atsushi Ikariga,Takashi Todaka,Masato Enokizono 대한전기학회 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
This paper presents a moving-magnet type linear actuator designed by using flux concentration type permanent magnet arrangement, which can generate higher magnetic flux density in air-gap. In this construction, detent force which is induced by both slot-effect and end-effect becomes larger due to strong attractive forces. To reduce cogging force we have employed a modular mover structure of two magnetic pole sections connected with a center yoke. The improved motor performance is demonstrated with the prototype machine.