Abstract
The synchronous disturbance acting on the magnetically suspended momentum wheel (MSMW) would affect its suspension stability and control accuracy, so a varied-gain compound model is proposed to attenuate the synchronous disturbances of the MSMW with varying rotating frequencies. The disturbance frequency is varying with the rotating frequency of the MSMW, the gain and frequency of the disturbance observer are regulated to maintain the asymptotic stability, and the feedback gain of the state feedback is scheduled to avoid the complex repeated acquisition of control parameters. Finally, the numerical simulations and experiments are performed to validate the effectiveness of the proposed varied-gain control model. The results indicate that the proposed control model could effectively attenuate the synchronous disturbances and maintain the asymptotic stability of the MSMW when the rotating speed changes.
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