Frequency Domain Analysis of Magnetic Bearings and Its Application to the Design of Controllers
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- Sawada Masashi
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Tamiya Tomoaki
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Ueki Masahiro
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Nakashima Ken-ichi
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Kataoka Mikihiko
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Kuroda Masanori
- Akashi works, Kawasaki Heavy Industries, Ltd.
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- Shindo Yuji
- Akashi works, Kawasaki Heavy Industries, Ltd.
Bibliographic Information
- Other Title
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- 磁気軸受の周波数特性解析と制御系設計への適用
- ジキ ジクウケ ノ シュウハスウ トクセイ カイセキ ト セイギョケイ セッケイ エ ノ テキヨウ
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Abstract
This paper proposes a method to derive the frequency response of an actuator with a solid iron core. This actuator is designed for a thrust magnet bearing of a high-speed motor. The actuator is treated as a distributed system with eddy currents in the solid iron core. Theoretical formulation of the frequency response is derived by using Maxwell's equations and by using a simple magnetic circuit model. The finite element analysis results and the experimental results are also obtained. A method for obtaining the rational expression of the frequency response is derived. Although the method is essentially based on a least-square method, it is modified to some extent in order to obtain a rational expression. By using this rational expression, we show that the controller for the magnetic bearings can be designed with usable accuracy, before manufacturing the actual actuator.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 132 (12), 1131-1140, 2012
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679636383744
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- NII Article ID
- 10031129694
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 024253460
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed