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《Journal of Vibration and Shock》 2015-22
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Active vibration control of an active-passive hybrid magnetically suspended rotor based on composite feedforward compensation method

CUI Pei-ling;GE Yu-huan;LI Hai-tao;School of Instrumentation Science and Optoelectronics Engineering,Beihang University;Science and Technology on Inertial Laboratory,Beihang University;  
When an active-passive hybrid magnetically suspended Control Moment Gyro( CMG) rotor rotates,synchronous vibrations will be caused. To achieve its active control,the coupling characteristics along with the change of the radial deflection angles between passive and active bearings were analyzed. On this basis,a composite feedforward compensation method for active vibration control of active-passive hybrid magnetically suspended rotor was proposed. The impact of coupling magnetic forces between active and passive bearings was taken into account in the process of lead feedforward compensation for displacement stiffness forces. And the coupling current stiffness forces were compensated between the two radial passages. The simulation results show that,the proposed method can reduce the synchronous bearing forces to 9. 3% of those without compensating the couplings.
【Fund】: 国家民用航天预研项目(61121003);; 国家自然科学基金(61203112)
【CateGory Index】: TB535
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