2/14/2018 11:15 AM | |
Joined: 10/16/2007 Last visit: 9/11/2024 Posts: 629 Rating: (45) |
Do you mean a Siemens software-controller for future? Do you use a Siemens-controller at the moment? Regards |
2/16/2018 9:10 PM | |
Posts: 241 Rating: (1) |
it is a pid controller itself |
2/21/2018 2:55 PM | |
Posts: 241 Rating: (1) |
it isnt pid controller of siemens its a microcamp (controller from IMAl company) |
2/21/2018 2:57 PM | |
Posts: 241 Rating: (1) |
pid gain of this controller is: p=0.4 i=10 d=5.0 |
3/6/2018 7:03 PM | |
Posts: 241 Rating: (1) |
hello what is best method to calculate p ,i,d for controller? |
3/6/2018 7:38 PM | |
Joined: 9/27/2006 Last visit: 9/23/2024 Posts: 12282 Rating: (2685) |
Hello hamed; There are many methods to estimate the most efficient parameters for a PID loop controller for a specified system.. Here is a presentation of some graphical methods (they rely on the graph of the results of a test on your system to extrct information to allow calculations of the P, I and D parameters that should best control it): http://pages.mtu.edu/~tbco/cm416/tuning_methods.pdf The most used methods are Cohen-Coon (with open-loop step test) and Ziegler-Nichols (using a closed-loop proportional gain test). If any interest you, there is a lot of litterature on the web on both (and other methods). (There is also a link to a presentation site in the next link). In the following discusion on the forum, the controlguru site is presented. it proposes very good mathematical methods (Laplace and Z-transforms are the basisot the control loop) so it requires more math background on your part. Hope this helps, Daniel Chartier |
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