한국해양대학교

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퍼지-PID 제어기를 이용한 수조 시스템의 수위제어

Title
퍼지-PID 제어기를 이용한 수조 시스템의 수위제어
Author(s)
이상헌
Publication Year
2014
Publisher
한국해양대학교 대학원
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002176104
http://repository.kmou.ac.kr/handle/2014.oak/10443
Abstract
Abstract



Even though lots of the modern control theories are developed, the PID control is the most widely used in real industrial field which is familiar to control engineer. It offers satisfactory control performance in most case of industrial applications.

However, traditional PID control has fixed gain for particular operating conditions, thus the conventional unique PID strategy would be unsatisfactory when the system parameters have changed due to the change of operating condition, aging, etc. of the controlled plants. The author, therefore, propose a fuzzy-PID controller which combines PID control and fuzzy technique to obtain the good performance of water level control system on the whole operating range.

To combine the PID controller with fuzzy logic, at first, the sub-PID controller is designed at each water level, whose parameters are adjusted using trial and error. Then fuzzy "If∼Then" rules combine the sub-PID controllers as a consequence part.

Finally, the effectiveness of the proposed fuzzy-PID controller is verified through computer simulation.
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해양군사학과 > Thesis
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