Computationally Efficient Implementation of Dynamic Matrix Control Algorithm for Very Fast Processes Using Programmable Logic Controller

2018 ◽  
Author(s):  
Andrzej Wojtulewicz ◽  
Maciej Lawrynczuk
Keyword(s):  
Control Algorithm ◽  
Programmable Logic Controller ◽  
Efficient Implementation ◽  
Programmable Logic ◽  
Dynamic Matrix Control ◽  
Computationally Efficient ◽  
Dynamic Matrix ◽  
Matrix Control

Study on Predictive Control Technology Based on Disturbance of Electrically Heated Boiler

2013 ◽  
Vol 300-301 ◽  
pp. 1475-1478
Author(s):  
Ming Qiu Li ◽  
Shu Hua Jiang
Keyword(s):  
Predictive Control ◽  
Pid Control ◽  
Control Algorithm ◽  
Dynamic Performance ◽  
Nonlinear Process ◽  
Settling Time ◽  
Dynamic Matrix Control ◽  
Dynamic Matrix ◽  
Matrix Control ◽  
Time Invariant

Electrically heated boiler is a large inertia, time invariant and nonlinear process. Classical PID control algorithm cannot make the system meet up the needs of performance index. Dynamic matrix control (DMC) predictive control algorithm is adopted to control electrically heated boiler temperature. Simulation result shows that the temperature control system’s overshoot is zero, settling time is 200s, the steady-state error is 9.7574e-006. Compared with PID control, DMC predictive control decreases the overshoot and settling time and improves the system dynamic performance. Aim at disturbance, improved DMC control algorithm is put forward and enhance the system disturbance suppression ability.

CFBB Bed Temperature Control Strategy Based on Improved DMC

2013 ◽  
Vol 732-733 ◽  
pp. 817-822
Author(s):  
Chang Liang Liu ◽  
Fei Fei Li
Keyword(s):  
Control Algorithm ◽  
Circulating Fluidized Bed ◽  
Uncertain System ◽  
Dynamic Matrix Control ◽  
Time Error ◽  
Control Effect ◽  
Large Delay ◽  
Dynamic Matrix ◽  
Bed Temperature ◽  
Matrix Control

Whether the bed temperature of circulating fluidized bed boiler (CFBB) is stable or not affects the efficiency of the entire unit. According to the characteristics of an uncertain system with large delay, large inertia and time-varying of the bed temperature system, this paper proposed an adaptive dynamic matrix control (DMC) algorithm based on the real-time error correction. The algorithm can make the dynamic matrix controller more accurately, more flexibly and more applicably on reflecting system changes by revising the errors during the feedback regulating. The simulation results show that the control algorithm is of good adaptability and robustness and satisfactory control effect in the bed temperature system can be achieved.

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