Author Topic: Kp Ki and Kd  (Read 3481 times)

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Offline rabochidTopic starter

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Kp Ki and Kd
« on: December 07, 2010, 04:05:18 AM »
how to define the coefficients Kp, Ki and Kd of a PID without knowing the characteristics of my dc motor
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Offline waltr

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Re: Kp Ki and Kd
« Reply #1 on: December 07, 2010, 08:22:21 AM »
You can't.
You can either take a first guess at the values one at a time or model that entire motor/feedback SYSTEM to calculate starting values.
Look up PID tuning. There are many articles on how to do this.
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Offline rabochidTopic starter

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Re: Kp Ki and Kd
« Reply #2 on: December 08, 2010, 12:42:04 PM »
I think I can do it with the method of ziegler nichols
http://en.wikipedia.org/wiki/Ziegler%E2%80%93Nichols_method
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