PID Tunning

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Anonymous Poster	PID Tunning 04/29/2008 1:44 AM
	How to calculate the PID tunning which should include the calculation for Kp, Kc Values and derivative & Intregral time.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: PID Tunning 04/29/2008 3:06 AM
	Calculate? It involves a lot of S-plane algebra. Most people who tune loops use the http://en.wikipedia.org/wiki/PID_controller#Ziegler.E2.80.93Nichols_method __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Kilowatt0 Guru Join Date: Aug 2007 Location: Earth - I think. Posts: 2143 Good Answers: 165	#2 Re: PID Tunning 04/29/2008 3:26 PM
	You can start by going here: http://www.automation.com/sitepages/pid962.php About halfway down the page are several "White papers" on several tuning techniques. "Which Tuning Method Should You Use? There are many, many different tuning rules available. Quarter Amplitude Damping, Cohen-Koon, IMC, Trial-and-error, Lambda, Ziegler-Nichols, Shinskey, minimum IAE, to name just a few. Any tuning method will have proponents who push the merits of the method saying it guarantees this and that in terms of response and at the same time is robust and not very sensitive to the process changing. Which one should you use?" __________________ TANSTAAFL (If you don't know what that means, Google it - yourself)
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