한국해양대학교

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퍼지-PID 기법을 이용한 선박용 가스터빈 엔진의 강인한 속도제어

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dc.contributor.author 이윤형 -
dc.date.accessioned 2017-02-22T07:12:22Z -
dc.date.available 2017-02-22T07:12:22Z -
dc.date.issued 2004 -
dc.date.submitted 56823-11-10 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002176103 ko_KR
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/10442 -
dc.description.abstract Since the first naval ship propelled by a gas turbine engine was operated in 1947, gas turbine engines have been developed rapidly until today. Gas turbine engines in the commercial marine field, however, have not gained as much attention as other fields such as aerospace, power plant industries and naval ship. Recently gas turbine engines have increasingly been utilized as commercial marine engine. The primary reasons are the engine's low weight, low volume, high availability, low first cost, and acceptable operating costs. The gas turbine engines, in general, are operated in operating points which have the highest TIT(Turbine Inlet Temperature) and CDP(Compressor Discharge Pressure) for thermal efficiency. And when gas turbine engine accelerates and decelerates, that is transient condition, compressor tend to move close to the surge line. If the gas turbine engine is accelerated from design point to other operating point, front stages of compressor are to stall and rear stages to choke. On the contrary when the gas turbine engine is decelerated, rear stages are to stall and front stages to choke. Besides the system parameters of the gas turbine engine, such as time constant and gain etc., get changed remarkably in real operating condition. It means that operators must consider to these operating environment and suitably control fuel flow which is unique control input. Although in this paper the author merely deals with system parameter change with the exception of transient condition, the conventional controller, such as a PID controller based on fixed parameters, could not guarantee the robustness and good control performance in the aspect of system parameter changes caused by the change of operating condition. The author, therefore, propose a fuzzy-PID controller which combines PID control and fuzzy technique to obtain the good performance of gas turbine engine speed 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 speed mode, whose parameters are optimally adjusted using a RCGA. 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. -
dc.description.tableofcontents 제 1 장 서론 1 1.1 연구배경 1 1.2 연구동향 2 1.3 연구내용 및 구성 3 제 2 장 가스터빈 엔진의 속도제어시스템 및 모델링 5 2.1 가스터빈 엔진의 속도제어시스템 구성 5 2.2 가스터빈 엔진의 모델링 8 제 3 장 퍼지-PID 제어기의 설계 23 3.1 퍼지제어의 기본이론 23 3.2 가스터빈 엔진의 퍼지 모델링 26 3.3 RCGA 기반의 PID 제어기 동조 29 3.4 퍼지-PID 제어기 31 제 4 장 시뮬레이션 및 고찰 33 4.1 PID 제어기의 최적동조 33 4.2 응답실험 및 결과고찰 36 제 5 장 결론 51 참고문헌 52 -
dc.language kor -
dc.publisher 한국해양대학교 대학원 -
dc.title 퍼지-PID 기법을 이용한 선박용 가스터빈 엔진의 강인한 속도제어 -
dc.title.alternative Robust Speed Control of Marine Gas Turbine Engines Using Fuzzy-PID Technique -
dc.type Thesis -
dc.date.awarded 2004-08 -
dc.contributor.alternativeName Yun-Hyung Lee -
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기관시스템공학과 > Thesis
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