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Research of maglev train suspension algorithm based on active disturbance rejection control

An Active Disturbance Rejection Control (ADRC) algorithm based on tracking differentiator is designed for maglev train suspension system, and a kind of modified tracking differentiator is applied. Comparison between modified and original tracking differentiator in the performance of the signal tracking and differential signal calculating is analyzed, and numerical simulations and experimental investigates are carried out for the control performance of modified ADRC algorithms.