한국해양대학교

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퍼지 게인 스케쥴링을 이용한 이중수조 시스템의 강인한 제어기 설계

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dc.contributor.author 김영수 -
dc.date.accessioned 2017-02-22T07:12:35Z -
dc.date.available 2017-02-22T07:12:35Z -
dc.date.issued 2005 -
dc.date.submitted 56823-03-29 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002176106 ko_KR
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/10447 -
dc.description.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 Fuzzy Gain Scheduling strategy, which changes the controller parameters for operating condition variation, could be a solution of these problems. Water level control systems are applied to the many industrial plants like chemical reaction process, but it is known very difficult to control precisely the tank level without any overflow and shortage -
dc.description.abstract Because of its complicate dynamic characteristics, it's impossible to realize the accurate control using the mathematical model which can be applied to the various operation modes. In this paper, the author designed the PID controller for the various operating conditions like different water level points and different magnitude of step change, and verified the performance of these controllers by experiments as well as simulations. It is noticed that the PID controller with fixed gains does not meet the requirements of control performance with large overshoot or late convergence, with varying the magnitude of step change. To improve this problem, three kinds of PID gain were scheduled under Fuzzy Gain Scheduling strategy and simulated and experimented under those operating conditions. The Fuzzy gain scheduled PID controller made satisfactory performance which fixed gain PID controller couldn't make to the various magnitude of step change command. -
dc.description.tableofcontents Abstract ⅲ Nomenclature ⅴ 제 1 장 서론 1 1.1 연구배경 1 1.2 연구동향 1 1.3 연구내용과 구성 2 제 2 장 이중수조 시스템의 모델링 4 2.1 이중수조 시스템 4 2.2 모델링 5 2.2.1 펌프 5 2.2.2 이중수조 5 2.2.3 센서 7 2.3 시스템 파라미터 10 제 3 장 퍼지 게인 스케쥴링에 의한 제어기 설계 12 3.1 PID 제어 12 3.1.1 제어동작 특성 12 3.1.2 PID 제어기 파라미터 동조 17 3.2 퍼지제어 21 3.2.1 퍼지제어의 특징 21 3.2.2 퍼지제어기 22 3.3 PID 제어기의 설계 35 3.4 퍼지 게인 스케쥴링 38 제 4 장 시뮬레이션 및 고찰 41 4.1 PID 제어기의 계단응답 41 4.1.1 동작구간의 변화에 따른 계단응답 41 4.1.2 계단입력의 크기에 대한 응답 47 4.2 퍼지 게인 스케쥴링에 의한 시뮬레이션 50 제 5 장 실험 및 비교 53 5.1 실험장치 및 실험방법 53 5.1.1 실험장치의 구성 53 5.1.2 실험방법 54 5.2 실험결과 55 5.2.1 동일한 크기의 계단입력에 대한 응답 55 5.2.2 계단입력의 크기 변화시 응답실험 58 제 6 장 결론 61 참고문헌 62 -
dc.language kor -
dc.publisher 한국해양대학교 해사산업대학원 -
dc.title 퍼지 게인 스케쥴링을 이용한 이중수조 시스템의 강인한 제어기 설계 -
dc.title.alternative Design of a Robust Water Level Controller for Coupled Tank System Using Fuzzy Gain Scheduling -
dc.type Thesis -
dc.date.awarded 2005-02 -
dc.contributor.alternativeName Young-Su Kim -
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기관시스템공학과 > Thesis
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