1995 Fiscal Year Final Research Report Summary
Research of Magnetically Levitated Rotating Motor
| Project/Area Number |
05452162
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Dynamics/Control
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| Research Institution | Ibaraki University |
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Principal Investigator |
OKADA Yohji Ibaraki University, Dept.of Mechanical Eng., Professor, 工学部, 教授 (90007774)
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| Co-Investigator(Kenkyū-buntansha) |
NAGAI Bunshu Ibaraki Univ.Dept.of Mech.Eng., Research Associate, 工学部, 助手 (50007639)
KONDO Ryo Ibaraki Univ.Dept.of Mechanical Eng., Associate Prof., 工学部, 助教授 (90186867)
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| Project Period (FY) |
1993 – 1995
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| Keywords | magnetic levitation / rotating machine / electric motor / magnetic bearing / digital control / actuator |
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| Research Abstract |
For realyzing both functions of magnetic bearings and AC motor on the same rotor, +2 or -2 pole magnet is added addition to the usual motoring magnetic pole. This solution is realized for synchronous and induction motors. Synchoronous motor has the merit of independent control capability of motoring and levitation, but the force is week. On the contrary, induction motor has the merit of strong rotor which causes high rotating speed capability. However, it has the defects of spending energy in the rotor.
A new idea of using the internal magnet rotor for levitated motor is proposed which is expected to cause both merits of induction and synchronous motors. A stator which has two of the 3 phase winding is made to confirm the proposed motor. The experimental results are giving relatively strong levitated force and good rotating property.
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