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안서길,김철수,김성호 제어로봇시스템학회 2013 제어로봇시스템학회 각 지부별 자료집 Vol.2013 No.12
Generally, the performance of the wind turbine system is dependent on the performance of each controllers. Therefore, it is very important to verify the performance of wind turbine before its construction. NREL(New Renewable Energy Laboratory) provides free of charge FAST(Fatigue, Aerodynamic, Structure & Turbulence) program for the efficient verification of wind turbine`s performance. Futhermore, NREL also provides the interface between FAST and Matlab/Simulink for the researchers who get accustomed to Matlab/Simulink environment. In this paper, firstly detailed descriptions on how to use FAST nonlinear model under the Matlab/Simulink environment is given. Secondly, performance of various pitch controllers in case of 1.5MW wind turbine system is verified by using FAST and Simulink blocks.
안서길(Seo-kil An),임익초(Ik-Cho Lim),김성호(Sung-Ho Kim),육의수(Eui-Su Yuk) 제어로봇시스템학회 2015 제어·로봇·시스템학회 논문지 Vol.21 No.5
As electricity consumption is increasing rapidly these days, an urgent. need exists to minimize consumption through smart and intelligent ways in order to prevent a future energy crisis. For this purpose, development of an intelligent peak power management system should be required. As the number of appliances and consumer electrical devices increase, power consumption in unit business tends to grow. Generally, electricity consumption can be minimized using a peak power management system capable of. effectively controlling the load power by continuously monitoring the power. In this work, a peak power management system which consists of arduino microprocessor equipped with ethernet and Zigbee shield is presented. To verify the feasibility of the proposed scheme, laboratory-scale experiments are carried out.
김세윤,안서길,김성호,Kim, Se Yoon,An, Seo Kil,Kim, Sung Ho 한국스마트미디어학회 2014 스마트미디어저널 Vol.3 No.1
전 세계적으로 석유자원의 고갈로 인해 석유가격의 상승 및 중국, 인도 등 거대개도국의 에너지 수요 폭발로 국내외 에너지환경은 새로운 도전과 변화의 국면에 처해 있다. 그러나 태양광 발전은 기존 발전방식에 비하여 발전 단가가 높고 에너지 밀도가 희박하여 일정한 전력을 이용하기 위해서는 넓은 면적의 태양전지모율 설치 장소가 필요하다. 또한 기상조건 및 자연조건에 절대적인 영향을 받기 때문에 태양광 발전의 효율적인 발전을 위해서는 지리적인 위치와 태양의 위치 등을 고려하여 태양전지모듈이 지속적으로 많은 양의 발전을 할 수 있게 하는 기술이 필요하다. 이에 본 연구에서는 기존 추적 시스템의 문제점을 해결하기 위해 새로운 형태의 태양 추적 시스템을 제안하고자 한다. 또한 제안된 기법의 유용성을 확인하기 위해 제작된 시제품에 알고리즘을 구현하여 실제 실험을 수행하고자 한다. Recently, domestic energy environment is facing new challenges owing to the depletion of fossil fuel such as oil. Renewable energy resources including solar and wind energy are attracting more interests than ever before. However, solar power system is costly in comparison with the conventional power generation systems and also the energy density is low. Furthermore, large area is required in order to install solar power system. Generally, performance of solar power system is affected by weather conditions and alignment of sun and the solar cell modules. In this study, a new type of sun tracking system for solar power system is proposed. To verify the feasibility of the proposed system, actual implementation of prototype system and experiments are carried out.