Improving Operational Performance of Magnetically Suspended Flywheel With PM-Biased Magnetic Bearings Using Adaptive Resonant Controller and Nonlinear Compensation Method
| Autor: | Xianbiao Zhang, Leitao Wu, Dong Wang, Junquan Chen, Zhenzhong Su |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Flywheel energy storage Electromagnet Computer science 020208 electrical & electronic engineering Magnetic bearing 02 engineering and technology 01 natural sciences Flywheel Magnetic flux Electronic Optical and Magnetic Materials Magnetic field law.invention Controllability Nonlinear system Control theory law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Magnetic levitation |
| Zdroj: | IEEE Transactions on Magnetics. 52:1-4 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Permanent magnet-biased magnetic bearings (PBMBs) are widely used in flywheel energy storage systems because of their comprehensive advantage in power loss and controllability. However, there is a nonlinear relationship between magnetic force, control current, and eccentric displacement of the PBMB. When the system is required to be high performance, the nonlinear dynamics of the PBMB must be considered in a control design. Therefore, this paper proposes a novel nonlinear compensator based on the nonlinear model of the PBMB and it is applied to a magnetically suspended flywheel (MSF) with PBMBs. To implement the perfect nonlinear compensation, an adaptive resonant controller is also presented to compensate the dynamics of the current-mode amplifier. Finally, the proposed method is verified by experiments on the test rig of the MSF and can be used to improve the performance of the system. |
| Databáze: | OpenAIRE |
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