조류터빈 최적설계 기법의 개선

Title
조류터빈 최적설계 기법의 개선
Alternative Title
Recent Improvement of Optimization Methods in a Tidal Current Turbine Optimal Design Tool
Author(s)
Ye Li; 이진학; Danny Sale
KIOST Author(s)
Yi, Jin Hak(이진학)
Publication Year
2012-10-15
Abstract
In this paper, we present the tidal current turbine optimal design tool improvements that we have developed since the initial presentation of this research. We first briefly review the existing code. Then, we show advanced optimization methods that can significantly improve the optimization efficiency using a hybrid optimization method that combines a genetic algorithm, a pattern search method, and a constrained simplex method. By comparing the newly developed hybrid method with previously implemented genetic algorithm, we found that the hybrid optimization scheme can reduce the computation time by over 30% while still obtaining similar or higher quality solutions. Additionally, we discuss the extensive improvements focusing on the final objective function value, computation time, optimal design(including blade shape, RPM and pitch angle); and power curve with respect to current velocity and loads (including torque, thrust force, and root-flap bending moment).methods that can significantly improve the optimization efficiency using a hybrid optimization method that combines a genetic algorithm, a pattern search method, and a constrained simplex method. By comparing the newly developed hybrid method with previously implemented genetic algorithm, we found that the hybrid optimization scheme can reduce the computation time by over 30% while still obtaining similar or higher quality solutions. Additionally, we discuss the extensive improvements focusing on the final objective function value, computation time, optimal design(including blade shape, RPM and pitch angle); and power curve with respect to current velocity and loads (including torque, thrust force, and root-flap bending moment).
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27530
Bibliographic Citation
OCEANS 2012 MTS/IEEE, pp.1 - 8, 2012
Publisher
IEEE
Type
Conference
Language
English
Publisher
IEEE
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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