Experimental study on active disturbance rejection temperature control of a mechanically pumped two-phase loop

2021 ◽  
Author(s):  
Chengbin Zhang ◽  
Guanru Li ◽  
Li Sun ◽  
Yongping Chen
Keyword(s):  
Experimental Study ◽  
Temperature Control ◽  
Disturbance Rejection ◽  
Two Phase ◽  
Active Disturbance Rejection ◽  
Phase Loop

scholarly journals Fractional-Order PID and Active Disturbance Rejection Control with Tuning Parameter Optimization for Induction Heating

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Bingyu Li ◽  
Jining Guo ◽  
Ying Fu
Keyword(s):  
Fractional Order ◽  
Temperature Control ◽  
Induction Heating ◽  
Disturbance Rejection ◽  
Active Disturbance Rejection Control ◽  
Heating Systems ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Fractional Order Pid ◽  
Control Accuracy

Induction heating systems are characterized by model uncertainty, nonlinearity, and external disturbances, and the control accuracy of the system directly affects the performance of the heated workpiece. In order to improve the temperature control accuracy and anti-interference performance of induction heating systems, this paper proposes a composite control strategy combining fractional-order PID (FOPID) and active disturbance rejection control (ADRC). Meanwhile, for the problem of too many controller tuning parameters, an improved quantum behavior particle swarm optimization (QPSO) algorithm is used to transform the nine parameters to be tuned in fractional-order PID active disturbance rejection control (FOPID-ADRC) into a minimization value optimization problem for solving. The simulation results show that the FOPID-ADRC controller improves the anti-interference capability and control accuracy of the temperature control system, and the improved QPSO algorithm has better global search capability and local optimal adaptation value.

Application of Active Disturbance Rejection in Main Steam Temperature Control of Thermal Power Plant

2014 ◽  
Vol 716-717 ◽  
pp. 1658-1661
Author(s):  
Dong Wang ◽  
Rui Bo Zhu
Keyword(s):  
Temperature Control ◽  
Disturbance Rejection ◽  
Power Plants ◽  
Large Scale ◽  
Thermal Power ◽  
Feedback Signal ◽  
Steam Temperature ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Main Steam

In large-scale thermal power plants, the control of boiler main steam temperature functions as an indispensable part to improve the economic efficiency and ensure the unit’s safety. Currently, the main steam system is always characterized as a dynamic system with big delay, large inertia and huge uncertainties. Considering the characteristics above, the Active Disturbance Rejection Control (ADRC) is designed and serves as a creative solution to the problem of main steam temperature control. In this paper, a guiding temperature signal is adopted as an auxiliary feedback signal, which constitutes the cascade control loop of ADRC-PI.

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