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Z-N PID Controller Tuning

version (1.82 KB) by Reza Ahmadzadeh
Using this m-file, you can calculate the Z-N PID Controller in 2 - Methods


Updated 09 Jan 2011

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Method 1 . Using Step Response and Delay Time and Time Constant Parameters.

Method 2 . Using proportional controller action only. you should find critical gain and corresponding critical period.

all results come in 2 different output shape.
1- Controller with (Kp - Ti - Td)
2- Controller with (Kp - Ki - Kd)

These methods aimed at obtaining 25% maximum overshoot in step response.

>>> So the Z-N method just makes an initial PID Controller coefficients.
for a better controller you have to optimize the coefficient using many existing methods.


Comments and Ratings (3)

Mona Eissa


check my home page for more source codes:

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux