Abstract: In order to improve the anti-disturbance ability of steel plate magnetic levitation systems,measured acceleration signals are used to realize acceleration feedback control.Firstly,a mechanism that independent regulation of suspension stiffness,bandwidth,and damping ratio can be achieved by acceleration feedback was introduced.To overcome the constraint in implementation of acceleration control due to resonant effect,a model of suspension systems considering resonant effect was derived and its influence on closed loop stability was analyzed.A control strategy that employs an acceleration notch filter to attenuate vibration was proposed.Secondly,in order to fast and accurately measure the resonance frequency,and simplify the implementation of the notch filter,an adaptive notch filter is adopted to identify the resonant frequency and realize the function of the notch filter.Finally,the method for performance index selection,and the way to optimize controller parameters were discussed.Experiments were carried out to verify the validity of acceleration feedback control based on the prototype.Experimental results showed that the proposed control strategy can enhance static and dynamic suspension stiffness.