• 제목/요약/키워드: Wind Turbine Modeling

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MATLAB/Simulink를 이용한 계통연계 풍력발전 시스템 모델링 및 시뮬레이션 (Grid-connected Wind Turbine Generation System Modeling and Simulation Using MATLAB/Simulink)

  • 안해준;김현구;장길수;장문석;고석환
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 추계학술대회 논문집
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    • pp.321-323
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    • 2008
  • This study suggests a modeling of grid-connected wind turbine generation systems and performs simulation according to increase/decrease of real wind speed. MATLAB/Simulink implemented modeling of grid-connected wind turbine generation system. Terminal voltage, grid voltage, and active/reactive power shall be observed following the performance of simulation.

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Advanced Tools for Modeling, Design and Optimization of Wind Turbine Systems

  • Iov Florin;Hansen Anca Daniela;Jauch Clemens;Sorensen Poul;Blaabjerg Frede
    • Journal of Power Electronics
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    • 제5권2호
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    • pp.83-98
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    • 2005
  • As wind turbine technology and control has advanced over the last decade, this has led to a high penetration of wind turbines into the power system. Whether it be for a large wind turbine or an offshore wind farm with hundreds of MW power capacity, the electrical system has become more and more important in controlling the interaction between the mechanical system of the wind turbine and the main power system. The presence of power electronics in wind turbines improves their controllability with respect not only to its mechanical loads but also to its power quality. This paper presents an overview of a developed simulation platform for the modeling, design and optimization of wind turbines. The ability to simulate the dynamic behavior of wind turbines and the wind turbine grid interaction using four simulation tools (Matlab, Saber, DIgSILENT and HAWC) is investigated, improved and extended.

등가모델링기법을 이용한 5MW급 부유식 해상용 풍력발전기 구조동역학해석 (Structural Dynamics Analyses of a 5MW Floating Offshore Wind-Turbine Using Equivalent Modeling Technique)

  • 김명환;김동현;김동환;김봉영
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2011년도 추계학술대회 논문집
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    • pp.614-622
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    • 2011
  • In this study, the computational structural dynamic modeling of floating offshore wind turbine system is presented using efficient equivalent modeling technique. Structural dynamic behaviors of the offshore floating platform with 5MW wind turbine system have been analyzed using computational multi-body dynamics based on the finite element method. The considered platform configuration of the present offshore wind turbine model is the typical spar-buoy type. Equivalent stiffness and damping properties of the floating platform were extracted from the results of the baseline model. Dynamic responses for the floating wind turbine models are presented and compared to investigate its structural dynamic characteristics. It is important shown that the results of the present equivalent modeling technique show good and reasonable agreements with those by the fully coupled analysis considering complex floating body dynamics.

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강재 풍력 터빈 타워의 상부구조 모델링 방법에 따른 고유진동수 특성에 대한 고찰 (A Study of Natural Frequency in Steel Wind Turbine Tower according to the RNA Model)

  • 이윤우;최준호;강성용;강영종
    • 복합신소재구조학회 논문집
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    • 제5권3호
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    • pp.37-42
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    • 2014
  • Wind turbine tower has a very important role in wind turbine system as one of the renewable energy that has been attracting attention worldwide recently. Due to the growth of wind power market, advance and development of offshore wind system and getting huger capacity is inevitable. As a result, the vibration is generated at wind turbine tower by receiving constantly dynamic loads such as wind load and wave load. Among these dynamic loads, the mechanical load caused by the rotation of the blade is able to make relatively periodic load to the wind turbine tower. So natural frequency of the wind turbine tower should be designed to avoid the rotation frequency of the rotor according to the design criteria to avoid resonance. Currently research of the wind turbine tower, the precise research does not be carried out because of simplifying the structure of the other upper and lower. In this study, the effect of blade modeling differences are to be analyzed in natural frequency of wind turbine tower.

풍력터빈 드라이브트레인의 동특성 해석을 위한 모델링 기법 (Modeling Techniques for The Dynamic Characteristics Analysis of Drivetrain in Wind Turbine)

  • 임동수;이승규;조준행;안경민
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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    • pp.286-289
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    • 2008
  • Wind turbine industry is booming and spending a lot on research for improving the performance of its present machines and increasing their capacity. Wind turbine requires service life of about 20 years and each components of wind turbine requires high durability, because installation and maintenance costs are more expensive than generated electricity by wind-turbine. So the design of wind turbine must be verified in various condition before production step. For this work, high reliability model for analysis is required. Drivetrain model is modeled by multibody dynamic modeling method. The model constituted with rotor blades, hub, main shaft, gear box, high speed shaft and generator. Natural frequency and torsional stiffness of drivetrain are calculated and analyzed.

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풍력터빈 드라이브트레인의 동특성 해석을 위한 모델링 기법 (Modeling Techniques for The Dynamic Characteristics Analysis of Drivetrain in Wind Turbine)

  • 임동수;이승규;양보석
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2012년도 추계학술대회 논문집
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    • pp.583-586
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    • 2012
  • Wind turbine industry is booming and spending a lot on research for improving the performance of its present machines and increasing their capacity. Wind turbine requires service life of about 20 years and each canponents of wind turbine requires high durability, because installation and maintenance costs are more expensive than generated electricity by wind-turbine. So the design of wind turbine must be verified in various condition before production step. For this work, high reliability model for analysis is required. Drivetrain model is modeled by multibody dynamic modeling method. The model constituted with rotor blades, hub, main shaft, gear box, high speed shaft and generator. Natural frequency and torsional stiffness of drivetrain are calculated and analyzed.

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풍력발전시스템에서의 LQG 제어에 관한 연구 (A study on the LQG control in wind power systems)

  • 김호찬
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 B
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    • pp.603-605
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    • 1999
  • In this paper, the aspects on modeling and control of an existing wind turbine are discussed. When designing control for variable-speed wind turbine, one deals with highly resonant, nonlinear dynamic systems subject to random excitation, i.e. wind turbulence. This requires good knowledge of the dynamics to be controlled. This paper describes an mathematical modeling of wind turbines with emphasis on control design for an existing wind turbine.

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하부구조를 포함한 5MW급 천해용 해상 풍력발전기 구조진동해석 (Structural Vibration Analyses of a 5 MW Offshore Wind Turbine with Substructure)

  • 김동환;김동현;김명환;김봉영
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2011년도 추계학술대회 논문집
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    • pp.607-613
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    • 2011
  • In this study, structural vibration analyses for a 5MW offshore wind wind-turbine model have been performed for different substructure models. The efficient equivalent modeling method based on computational multi-body dynamics are applied to the finite element models of the present offshore wind turbines. Monopile and tri-pod substructure types of the typical offshore wind-turbine are considered herein. Detailed finite element modeling concepts and boundary conditions are described and the comparison results for previous analyses are presented in order to show the verification of the present numerical approach. Campbell diagrams are also present to investigate the rotational resonance characteristics of the offshore wind-turbines with different substructures.

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Simulink에서 계통연계 유도형 풍력발전시스템의 특성해석에 대한 연구 (A Study on the Characteristic Analysis of a Grid-connected Induction Generator for Wind Power Systems on Simulink)

  • 안해준;김현구;장문석;장길수
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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    • pp.184.3-184.3
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    • 2010
  • This study suggests a modeling of grid-connected wind turbine generation systems and performs simulation according to increase/decrease of real wind speed. MATLAB & SIMULINK implemented modeling of grid-connected wind turbine generation system. Terminal voltage, grid voltage, and active/reactive power shall be observed following the performance of simulation.

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풍력터빈 요 베어링의 유한요소모델링 기법에 관한 연구 (A Study on Fine Element Modeling Method of Yaw Bearing for Wind Turbine)

  • 석호일;고우식;최원호;이승구
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2006년도 추계학술대회
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    • pp.249-252
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    • 2006
  • Recently, the interest for renewable energy producing system is increasing rapidly. Among these, the wind turbine is most highlighted. It is installed at severe environment and generate electricity for a long time to exceed in 20. Components of wind turbine are required high reliability. Therefore, structural strength analysis for wind turbine is needed an accurate FE model. This paper is to provide reliable fine element modeling method of yaw bearing for wind turbine.

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