Switching Power Amplifier and Its Improved Current Control Strategy of Active Magnetic Bearing
In order to optimize the performance of the magnetic bearing system, a five-axis common-bridge arm topology structure is proposed by analyzing the performance characteristics of magnetic bearing switching power amplifier, which has the advantages of less devices and less loss. At the same time, on t...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2021-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2021.02.007 |
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| Summary: | In order to optimize the performance of the magnetic bearing system, a five-axis common-bridge arm topology structure is proposed by analyzing the performance characteristics of magnetic bearing switching power amplifier, which has the advantages of less devices and less loss. At the same time, on the basis of analyzing the magnetic bearing control system transfer function, the system current loop bandwidth and the damping and stiffness of the constraints are deduced, and a current control strategy based on model prediction is designed, which can significantly improve response speed of current loop and overall performance of system. Simulation and test results show that the five-axis common bridge arm topology can reduce the system loss by 50%, and the current strategy based on model prediction can improve the system response speed and system stability. |
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| ISSN: | 2096-5427 |