Development of Lorentz Force Type Self-Bearing Motor and Industry Application

洛伦兹力型自轴承电机的研制及行业应用

• 批准号: 13555059
• 负责人: OKADA Yohji
• 金额: $ 8.06万
• 依托单位: IBARAKI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555059/
• 关键词: Magnetic Levitation; AC Motor; Magnetic Bearing; High Speed Spindle; Digital Control; Actuator; ディジタル制御

Maxwel force type self-bearing motor has been developed. However, PM type one requests thin PM which causes serious problems such as high manufacturing cost and demagnetization. To overcome these problems we proposed Lorentz force type self-bearing motor. This type can use thick PM for motoring field. The fundamental operation has been confirmed.First we developed cylindrical type 8 pole inner rotor motor controlled by 6 concentrated windings. The experimental setup is made and the strong levitated rotation is confirmed. The same theory can be applicable to 4 pole motor. We also confirmed experimentally by using the outer rotor experimental setup which can run up to 5,500 rpm. For applying this motor to a small spindle such as artificial heart or hard disc spindle, strong outer rotor motor is requested. Hence a Halbach magnet array is designed and fabricated. These results show stable levitation and rotation and reported before several symposium.Self-bearing motor can control radial two directions. A new magnetic bearing is proposed which can control other directions and the efficiency is very good due to the internal PM bias.New self-sensing technique is also developed using the differential transformer. Usually estimated data is affected inversely by the control signal. Linearize compensation technique is developed which show better performance.For the industrial application we are developing the implantable artificial heart pump and chemical pumps.

研制了麦克斯韦力型自轴承电动机。然而，PM类型1要求薄的PM，这导致严重的问题，例如高制造成本和退磁。为了克服这些问题，我们提出了洛伦兹力型自轴承电机。该类型可用于电机领域的厚PM。首先，我们研制了六集中绕组控制的圆筒型八极内转子电动机。制作了实验装置，证实了强悬浮旋转。同样的理论也适用于4极电机。我们还通过使用外转子实验装置进行了实验验证，该装置可运行至5，500 rpm。为了将这种电机应用于小型主轴，如人工心脏或硬盘主轴，需要强大的外转子电机。因此，设计并制造了Halbach磁体阵列。这些结果表明，自轴承电机可以实现径向两个方向的控制。提出了一种新的磁悬浮轴承，利用永磁体内部偏置，实现了对其它方向的控制，并利用差动Transformer实现了磁悬浮轴承的自检测。通常，估计的数据受到控制信号的相反影响。在工业应用方面，我们正在研制植入式人工心脏泵和化学泵。

项目成果

金箱秀樹, 小西博英, 岡田養二: "ローレンツカを利用した円筒型セルフベアリングモータの開発"日本AEM学会誌. 第9巻・3号. 364-371 (2001)

Hideki Kanabako、Hirohide Konishi、Yoji Okada：“利用洛伦兹卡开发圆柱形自轴承电机”，日本 AEM 学会杂志，第 9 卷，第 364-371 期（2001 年）。

Design and control of a disk-type integrated motor-bearing system

• DOI: 10.1109/3516.990883
• 发表时间: 2002-08
• 期刊: IEEE-ASME Transactions on Mechatronics
• 影响因子: 6.4
• 作者: W. Han;C. Lee;Y. Okada

Position Self-Sensing Control of an Axial Self-Bearing Motor

轴向自轴承电机的位置自感知控制

• 发表时间: 2002
• 期刊: Proc.of 8^<th> International Symposium on Magnetic Bearing(Mito, Japan) August 26-28
• 作者: Satoshi Ueno;Ken-ichi Matsuda;Hiroshi Sato;Yohji Okada
• 通讯作者: Yohji Okada

Mixed Flow Artificial Heart Pump with Axial Self-Bearing Motor

带轴向自轴承电机的混流人工心脏泵

• 发表时间: 2004
• 期刊: Proc.of 9th International Symposium on Magnetic Bearings (CD-ROM)
• 作者: Youji Okada;Satoshi Ueno;et al.
• 通讯作者: et al.

T.Tokumoto, H.Kanebako, K.Matsuda, Y.Okada, D.Timms: "Development of Lorentz Force Type Self-Bearing Motor"Proc. of 8th Int. Symp. on Magnetic Bearings. 59-64 (2002)

T.Tokumoto、H.Kanebako、K.Matsuda、Y.Okada、D.Timms：“洛伦兹力型自轴承电机的开发”Proc。