Hermawan, Yulius Deddy and Puspitasari, Mitha (2018) Tuning of PID Controller Using Open Loop On Off Method and Closed Loop Dynamic Simulation in A 10 L Mixing Tank. Hikari Ltd, Bulgaria. (Unpublished)
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Abstract
The open loop on off experiment for tuning of Proportional Integral Derivative (PID) controller in a 10 L mixing tank has been successfully done in laboratory. A 10 L tank was designed for mixing of salt solution (as a stream-1) and water (as a stream-2). An electric stirrer was used to achieve uniform characteristic in tank. The tank system was designed overflow to keep its volume constant. The two configurations of composition control in a mixing tank have been proposed; they are Configuration-1 and Configuration-2. Stream-1 and stream-2 were chosen as manipulated variables for Configuration-1 and Configuration-2, respectively. In the open loop on-off experiment, the valve of each manipulated variable was suddenly fully open (on position) for several seconds and then fully closed (off position) for several seconds. The on off response of salt concentration in tank to on off input change in manipulated variable has been investigated. The resulted on off curves were then used to determine the PID parameters. This experiment gave the controller gain Kc [ml2/(g.sec)] for Configuration-1 and Configuration-2 are 68790 and –61146, respectively. The integral and derivative time constants for both configurations are the same, i.e. I = 80 seconds, D = 19 seconds. In order to evaluate the resulted tuning parameters, closed loop dynamic simulation using computer was also done. The mathematical model of composition control in a mixing tank was numerically solved and rigorously examined in Scilab environment. The closed loop dynamic simulation revealed that PID controller acted very well and its responses were faster than those in P and PI controllers.
| Item Type: | Other |
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| Uncontrolled Keywords: | Closed loop, mixing tank, on off, open loop, PID, tuning. |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr Y. Deddy Hermawan |
| Date Deposited: | 10 Jun 2021 02:49 |
| Last Modified: | 10 Jun 2021 02:49 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/25680 |
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