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Active Disturbance Rejection Control for Loading System

In this paper, the active disturbance rejection control (ADRC) strategy is proposed for the loading system. The behavior of actual loading system is influenced by a variety of factors including the internal parameters uncertainty and external disturbances, which will be observed by the designed extended state observer (ESO) and compensated by the controller. In addition, due to the existence of the tracking differentiator (TD) that arranges the transition process, the loading system controlled by ADRC can not only achieve the desired system loading curve but also almost no overshoot. Finally, a simulation model for a third-order loading system is built by Simulink platform to verify the effectiveness of the proposed control method. The designed ADRC control method for loading system has better dynamic performance and stronger robustness by compared with the classical PID control strategy.