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Anti-Windup PID Example

version 1.1.0.0 (42.9 KB) by Yogananda Jeppu
The concept of anti-windup integration and its importance is brought out in this example..

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Updated 24 Feb 2014

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This is an example of PID control of a 1/s plant. The concept of anti-windup integration and its importance is brought out here. It is mandatory that all integrators in safety critical control systems have anti-windup protection. This is taken from the best practices (https://www.cso.nato.int/pubs/rdp.asp?RDP=RTO-TR-029). This example brings out the reason why this is required. It compares the PID performance with and without anti-windup. There is an example where the anti-windup integrator is implemented incorrectly as an integrator followed by a saturation block. The correct implementation is the integrator output being limited and this limited output fed back as a state. However, it is seen that the mistake in implementation is done very often.

Cite As

Yogananda Jeppu (2021). Anti-Windup PID Example (https://www.mathworks.com/matlabcentral/fileexchange/45657-anti-windup-pid-example), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired by: anti-windup PID controller - SIMULINK block

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