- #1
ABDUL HASEEB ARIF
- 1
- 0
can we add two pid controllers like i have done in my model.thanks
Is my model a correct one -- adding two pid controllers
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SUMMARY
The discussion centers on the implementation of two PID controllers in a control system model. It is established that while it is technically possible to add two PID controllers, doing so may not yield the desired outcome of simultaneously reducing both error signals to zero. The key takeaway is that the design should focus on the process equations rather than the controllers themselves to effectively manage the error signals.
PREREQUISITES- Understanding of PID (Proportional-Integral-Derivative) control theory
- Familiarity with control system modeling techniques
- Knowledge of error signal analysis in control systems
- Ability to formulate process equations for control systems
- Research advanced PID controller tuning techniques
- Explore the use of multiple-input multiple-output (MIMO) control systems
- Learn about process control simulation tools like MATLAB/Simulink
- Study the impact of non-linearities in control systems
Control system engineers, automation specialists, and students studying control theory who are interested in optimizing PID controller implementations.
- #2
- 11,326
- 8,755
You can but it probably won't do what you want. The purpose of a PID (or a PI) is to make the input error signal go to zero. Unless the process is unusual, there is not value of the sum of the two PID outputs that makes both errors go to zero at the same time. If they don't, the PIDs will keep searching and will fail.
Design your layout this way. You have two error signals. Write the equations of the process (not the controllers) needed to make both go to zero.
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