An Optimal Self-Tuning PI Controller
碩士 === 國立臺北科技大學 === 自動化科技研究所 === 97 === A Proportional-Integral (PI) controller is an important instrument in industry control application. In control engineering field, to find out the optimal PI parameters by observing system response is very important, especially when system model is difficult to...
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| Format: | Others |
| Language: | en_US |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/5jt5r8 |
| Summary: | 碩士 === 國立臺北科技大學 === 自動化科技研究所 === 97 === A Proportional-Integral (PI) controller is an important instrument in industry control application. In control engineering field, to find out the optimal PI parameters by observing system response is very important, especially when system model is difficult to identify exactly. Therefore, this paper proposes a self-tuning methodology with a proposed Gradient Bisection Algorithm (GBA) to achieve finding the optimal PI parameters in fixed-input sustaining fixed-output (FIFO) system. The whole tuning tactic is constructed under desired constraints (such as overshoot, occurrence times of oscillation etc) with the minimum integral absolute error (IAE). Two kinds of typical FIFO system which are thermal system and servo motor velocity control system have simulated in this paper. Besides, a servo motor velocity control experiment has also been realized. The simulation and experiment results verify that our proposed optimal self tuning methodology is a reliable and practicable way to searching the optimal PI gains under desired indexes.
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