Resonance Vibration Control for AMB Flexible Rotor System Based onµ-Synthesis Controller

Autor: Huachun Wu, Yefa Hu, Ran Shaolin, Xin Cheng
Rok vydání: 2018
Předmět:
Zdroj: Mathematical Problems in Engineering, Vol 2018 (2018)
ISSN: 1563-5147
1024-123X
DOI: 10.1155/2018/4362101
Popis: The resonance vibration control of flexible rotor supported on active magnetic bearings (AMB) is a challenging issue in the industrial applications. This work addresses the application of robust control method to the resonance vibration control for AMB flexible rotor while passing through the critical speed. This model-based method shows great superiority to handling flexible mode vibration, which can guarantee robust stability and performance when encountering modal perturbation. First, the designed flexible rotor-AMB test rig is briefly introduced. Then the system modeling is described in detail including flexible rotor, power amplifier, displacement sensors and magnetic actuator and rotordynamics are analyzed. Model validation is carried out by sine sweeping test. Finally, theμ-synthesis controller is designed. The simulation and experimental results indicate that the designedμ-synthesis controller, which shows great robustness to modal perturbation, can effectively suppress the resonance vibration of flexible rotor and achieve supercritical operation.
Databáze: OpenAIRE