Study On The Application Of Active Disturbance Rejection Control Technology In Distributed Control System Of Thermal Power Unit

Active disturbance rejection control (ADRC) technology is a new type of practical control technology, which developed from the PID technology. The performance and application of ADRC technology were studied in the paper.This paper discussed the development and performance of ADRC technology. According to the objects with the characteristics of large time-delay, large inertia, nonlinear and time-varying, an ADRC based on neural network was designed and applied to the superheated steam temperature control system. Then, researched the implement method of ADRC technology in DCS, developed the ADRC module, and applied it in the coordinated control system of supercritical unit. The application result indicates the configuration of ADRC in DCS of thermal power unit is feasibility, and the ADRC has practical value and broad prospects for industrial applications.