Conversion formulae and performance capabilities of two-degree-of-freedom PID control algorithms

2012 ◽  
Author(s):  
Victor M. Alfaro ◽  
Ramon Vilanova
Keyword(s):  
Pid Control ◽  
Degree Of Freedom ◽  
Control Algorithms ◽  
And Performance ◽  
Two Degree Of Freedom

Two Degree of Freedom Model Driven PID Control for Unstable Process with Time Delays

2013 ◽  
Vol 339 ◽  
pp. 45-49
Author(s):  
Li Xiang Zhang
Keyword(s):  
Control System ◽  
Control Systems ◽  
Pid Control ◽  
Time Delays ◽  
Degree Of Freedom ◽  
Control Technology ◽  
Model Driven ◽  
Unstable Process ◽  
Unstable Processes ◽  
Two Degree Of Freedom

PID control systems are the most commonly used control technology in industries. However, there are issues on control performances for the unstable process with time delays. In order to improve the control performances of PID control systems, a new two degree of freedom model driven PID control system is introduced in this paper and it is used to the unstable processes with time delay. The model driven PID control is capable of stabilizing with unstable processes by using PD feedback, regulating quickly for disturbance and tracking quickly to the change of set point. With case studies comparing with conventional PID control systems was done.

Application on Two Degree of Freedom Model Driven PID in Liner First-Order Inverted Pendulum

2013 ◽  
Vol 433-435 ◽  
pp. 1000-1004
Author(s):  
Jing Jing Shi ◽  
Li Xiang Zhang ◽  
Ai Qin Jiang
Keyword(s):  
Control System ◽  
Pid Control ◽  
Inverted Pendulum ◽  
Degree Of Freedom ◽  
Control Technology ◽  
Pendulum System ◽  
First Order ◽  
Model Driven ◽  
Inverted Pendulum System ◽  
Two Degree Of Freedom

The inverted pendulum system is a high order, strong coupling, multi-variable and absolutely unstable nonlinear system. Its optimal control has been the hotspot in the field of study. A new two degree of freedom model driven PID control system is introduced in this paper.It will state the structure of the control technology and design steps.The control technology is applied to control linear inverted pendulum in this paper. The simulation results prove that two degree of freedom model driven PID control system has the feasibility and superiority.

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