Flow Tracking Of Glue System Based On Non-Singular Terminal Sliding Mode Active Disturbance Rejection Control
INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL(2020)
摘要
In this study, a control strategy combining active disturbance rejection control (ADRC) with non-singular terminal sliding mode control (NTSMC) is proposed for the uncertainty and external interference of the glue system model. The total disturbance of the system is mainly estimated by the extended state observer in ADRC, and NTSMC is used to compensate the system. The introduction of NTSMC can lead the system to converge in a limited time and can improve the control accuracy of the system. The extended state observer is also effective in eliminating chattering caused by discontinuous control. Through data collection on an experimental platform and MATLAB system identification, the proposed method is analyzed for stability. The proposed ADRC-NTSMC method achieves higher flow tracking accuracy and better active suppression of time-varying disturbances than the nonlinear proportional-integral-derivative method and existing ADRC. The simulation results thus verify the feasibility and effectiveness of the proposed strategy.
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关键词
Traffic tracking, Extended state observer, Auto disturbance rejection control, Non-singular terminal sliding mode control, Glue system
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