Z-N PID Controller Tuning 1.0

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.S.R.Ahmadzadeh

Requirements:	No special requirements
Platforms:	Matlab
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