Reactor temperature compound control strategy based on disturbance observer

A Smith-Dynamic Matrix Control ( DMC ) -PID SDP control method based on disturbance observer is devised for the temperature regulation of a reactor with high lag and nonlinear features. This results in poor system stability low precision. In first place, because prone to receiving external disturbances generated by changes, which ultimately leads significant impact inside kettle, introducing PID, DMC-PID algorithm Smith predictor combined compensation large hysteresis, model structure series system, design reduce adjustment time overshoot system. addition, that considers pure hysteresis linkages has been constructed impacted uncertainty. conclusion, findings experiments indicate suggested technique possesses strong anti-disturbance performance.