• Aerospace Engineering and Technology
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• v.12 no.1
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• pp.137-143
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• 2013

In recent years, the interest in a various energy sources is increasing. Among these energies, there are many kinds of researches for the kite which can generate the energy from high-altitude wind power. There are many attempts to apply the kite to the wind power generation and ship salvage, and it must require the flight control of the kite for this applications. In this paper, we suggest this flight controller based on the flight technique of sport kite. For this controller based on the human controller, we design the simple fuzzy controller with simple fuzzy rules.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.257-258
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• 2012

최근 다양한 에너지원에 대한 관심이 증가하고 있으며, 고공풍력을 이용한 발전을 할 수 있는 Kite에 대한 연구가 이루어지고 있다. Kite를 이용한 풍력 발전 및 선박 인양 등의 다양한 분야에 적용하기 위해서 Kite에 대한 제어는 필수다. 본 논문에서는 이러한 Kite의 제어를 위해서 기존의 Kite Sport와 비행기술의 원리를 이용하여, 지능제어 이론을 적용해보고자 한다. 이를 위해서 적절한 퍼지 룰을 생성 후 퍼지 제어기를 적용하여 Kite의 비행제어를 수행해보고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.259-260
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• 2012

With increasing interest in alternative energy source for green growth, this document shows that the study of kite flight control is based on the concept of autonomous flight of kite can exploit the energy. Currently, prototype kite was designed and the purpose of its flight test, by manual flight control with Remote Controller, was performed for the feasibility of the full automatic flight control. For the future research, the test data should be collected through the many flight test under various environment.

• Bulletin of Korea Environmental Preservation Association
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• s.385
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• pp.16-19
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• 2010

풍력발전기는 바람에너지를 전기에너지로 바꿔주는 장치이다. 풍력자원은 풍부하고 재생이 가능한 청정에너지원으로 다른 신재생에너지보다 상대적으로 발전단가가 낮아 경제적으로 유용한 것으로 알려져 있다. 2013년에는 시장규모가 120조원이 넘어설 것으로 예상이 되며 무한대의 시장이 펼쳐지고 있다. 수심 200M에 설치하는 심해풍력발전과 제트기류 등의 바람을 이용하는 고공풍력발전이 차세대 풍력발전으로 떠오르고 있다.

• Journal of the Korean Solar Energy Society
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• v.30 no.1
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• pp.19-24
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• 2010

At the altitudes above 3km, the wind is three to four time faster and less variable than at the current MW sized wind turbine hub height of around 100m. In addition, power generation from wind turbines installed on the ground is intermittent because local wind conditions are affected by local topography and artificial structures. The wind energy researchers and engineers are now looking for revolutionary ideas to utilize high altitude wind resources in-creasing the capabilities of wind turbine installations. This article presents and discusses several concepts for wind energy exploitation from wind at high altitudes. The concepts presented in this paper make use of lifting bodies, called wings or kites, connected to a tether that stetches into the higher regions of the atmosphere.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.2
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• pp.97-108
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• 2015

In the design of sailing yachts, para-glider, or high-sky wind power, etc., the analysis of side-wind aerodynamic forces exerted on a cambered 3-D model is very important to predict the performance of various machinery systems. To understand the essential flow physics around the three-dimensional shape, simplified rigid-body models are proposed in this study. Four parameters such as free stream velocity, angle of attack, aspect ratio, and camber are considered as the independent variables. Lift and drag coefficients are computed with CFD technique using ANSYS-CFX, and the results with the visualization of post-processed flow fields are analyzed in the viewpoint of fluid dynamics.