An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings
Active magnetic bearings consume much less power than conventional passive bearings, especially when power-minimizing controllers are employed. Several power-minimizing controllers have been proposed, such as variable bias controllers and switching controllers. In this paper, we present an appraisal...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/238629 |
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| _version_ | 1832559513053429760 |
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| author | Seong-yeol Yoo Myounggyu D. Noh |
| author_facet | Seong-yeol Yoo Myounggyu D. Noh |
| author_sort | Seong-yeol Yoo |
| collection | DOAJ |
| description | Active magnetic bearings consume much less power than conventional passive bearings, especially when power-minimizing controllers are employed. Several power-minimizing controllers have been proposed, such as variable bias controllers and switching controllers. In this paper, we present an appraisal of the power-minimizing control algorithms for active magnetic bearings in an attempt to provide an objective guideline on the merits of the control algorithms. In order for the appraisal, we develop an unified and consistent model of active magnetic bearing systems. The performances of the power-minimizing
controllers are assessed through this model. The results show that the power-minimizing controllers indeed save considerable power when the machine state is relatively steady. However, a simple proportional-derivative type controller is on a par with the much more
complex power-minimizing controllers in terms of power consumption when the machine is experiencing transient loads. |
| format | Article |
| id | doaj-art-c7c91a60bc8d495181a42fc7767f18fe |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c7c91a60bc8d495181a42fc7767f18fe2025-02-03T01:29:59ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/238629238629An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic BearingsSeong-yeol Yoo0Myounggyu D. Noh1Ocean System Engineering Research Division, Korea Research Institute of Ships & Ocean Engineering, Daejeon 305-343, Republic of KoreaDepartment of Mechatronics Engineering, Chungnam National University, Daejeon 305-764, Republic of KoreaActive magnetic bearings consume much less power than conventional passive bearings, especially when power-minimizing controllers are employed. Several power-minimizing controllers have been proposed, such as variable bias controllers and switching controllers. In this paper, we present an appraisal of the power-minimizing control algorithms for active magnetic bearings in an attempt to provide an objective guideline on the merits of the control algorithms. In order for the appraisal, we develop an unified and consistent model of active magnetic bearing systems. The performances of the power-minimizing controllers are assessed through this model. The results show that the power-minimizing controllers indeed save considerable power when the machine state is relatively steady. However, a simple proportional-derivative type controller is on a par with the much more complex power-minimizing controllers in terms of power consumption when the machine is experiencing transient loads.http://dx.doi.org/10.1155/2015/238629 |
| spellingShingle | Seong-yeol Yoo Myounggyu D. Noh An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings Shock and Vibration |
| title | An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings |
| title_full | An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings |
| title_fullStr | An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings |
| title_full_unstemmed | An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings |
| title_short | An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings |
| title_sort | appraisal of power minimizing control algorithms for active magnetic bearings |
| url | http://dx.doi.org/10.1155/2015/238629 |
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