期刊
IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷 18, 期 1, 页码 32-43出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2011.2161877
关键词
Active magnetic bearing (AMB); double-gimbal control moment gyro; robust control; structural resonance mode; vibration control
类别
资金
- National Basic Research Program of China [2009CB72400101C, 2009CB724002]
- National Nature Science Funds for Distinguished Young Scholars of China [60825305]
- Civil Space Advanced Research Projects of China
This paper explores a robust mu-synthesis control scheme for structural resonance vibration suppression of highspeed rotor systems supported by active magnetic bearings (AMBs) in themagnetically suspended double-gimbal control moment gyro (MSDGCMG). The derivation of a nominal linearized model about an operating point was presented. Sine sweep test was conducted on each component of AMB control system to obtain parameter variations and high-frequency unmodeled dynamics, including the structural resonance modes. A fictitious uncertainty block was introduced to represent the performance requirements for the augmented system. Finally, D-K iteration procedure was employed to solve the robust mu-controller. Rotor run-up experiments on the originally developed MSDGCMG prototype show that the designed mu-controller has a good performance for vibration rejection of structural resonance mode with the excitation of coupling torques. Further investigations indicate that the proposed method can also ensure the robust stability and performance of high-speed rotor system subject to the reaction of a large gyro torque.
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