Search for dissertations about: "Tuning of pid controller"
Showing result 1 - 5 of 20 swedish dissertations containing the words Tuning of pid controller.
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1. PID control of TITO systems
Abstract : This thesis treats controller design and tuning for systems with two input signals and two output signals in the process industry. Two design methods that can be combined to form a core in an algorithm for automatic design and tuning for the considered systems are presented. READ MORE
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2. On Automation of the PID Tuning Procedure
Abstract : Within process industry, and in many other areas, the PID controller is responsible for handling regulatory control. An educated guess is that the number of executing PID control loops lies in the billions (2011) and there are no signs indicating a decrease of this number. Properly tuning the PID controller, i.e. READ MORE
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3. Analysis and Design of Software-Based Optimal PID Controllers
Abstract : A large process industry can have somewhere between five hundred and five thousand control loops, and PID controllers are used in 90–97% of the cases. It is well-known that only 20–30% of the controllers in the process industry are tuned satisfactorily, but with the methods available today it is considered too time-consuming to optimize each single controller. READ MORE
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4. Automatic Tuning of PID Controllers Based on Asymmetric Relay Feedback
Abstract : This thesis presents an improved version of the classic relay autotuner. The proposed autotuner uses an asymmetric relay function to better excite the process in the experiment phase. The improved excitation provides the possibility to obtain better models and hence better tuning, without making the autotuner more complicated or time consuming. READ MORE
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5. Automatic Controller Tuning using Relay-based Model Identification
Abstract : Proportional-integral-derivative (PID) controllers are very common in the process industry. In a regular factory there may be hundreds or thousands of them in use. READ MORE