Study On The Application Of Main Stream Temperature Control System Based On Auto Disturbance Rejection Technique

In this paper, a new control algorithm named ADRC is given for main stream temperaturecontrol system with the properties of high inertia and strong delay and time-variation andmulti-disturbances. Auto disturbance rejection controller(ADRC), as a new type linearfeedback strategy , is brought forward by Han Jing-qing researcher in Institute of SystemScience, Academia Sinica in the last of 1990s . This method evolve from the nonlinearPID(NLPID) control strategy, which is put forward by him too. The most excellence ofADRC is that it can get the real time exterior and interior disturb from extended stateobserver(ESO), and make it compensate the input signal. ADRC improve the controller'srobustness and dynamic quality,static performance by nonlinear feedback. It has strongfilter capability, and is independent of mathematical models. The structure and arithmeticof ADRC is very simple, but the control quality of ADRC is very good. The simulationmanifests that the new control algorithm has good control quality and good robustness and goodanti-disturbances ability.