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풍력발전용 하이브리드타워 하중영향 및 경제성 분석

Analysis of load on the hybrid tower and cost effectiveness of the wind turbine

이승민 (Lee seung min, 풍력특성화대학원)

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초록 moremore
With the development of wind industry, rated power of the wind turbine also increases gradually. Accordingly, size of the wind turbine tower is becoming larger. Tower base diameter of the 2MW wind turbine is about 4m. Larger tower is expected for 4MW or 5MW turbines. Due to limitation of transportation, new type of tower with smooth transportation and effective cost is needed. In this work, a hybrid tower consisting of steel and concrete is designed and analyzed. The optimum ratio of steel and concrete of the hybrid tower is calculated as well as the thickness of the concrete part. Different FE analysis including modal analysis, buckling analysis and static analysis are performed to check the design of hybrid tower comparing with the steel tower. Redesign is also expected after various analyses.
With the development of wind industry, rated power of the wind turbine also increases gradually. Accordingly, size of the wind turbine tower is becoming larger. Tower base diameter of the 2MW wind turbine is about 4m. Larger tower is expected for 4MW or 5MW turbines. Due to limitation of transportation, new type of tower with smooth transportation and effective cost is needed. In this work, a hybrid tower consisting of steel and concrete is designed and analyzed. The optimum ratio of steel and concrete of the hybrid tower is calculated as well as the thickness of the concrete part. Different FE analysis including modal analysis, buckling analysis and static analysis are performed to check the design of hybrid tower comparing with the steel tower. Redesign is also expected after various analyses.
목차 moremore

목 차
Abstract i
...

목 차
Abstract i
목차 ii
표 목차 iv
그림 목차 v
술어 vii
약어 viii



I. 서론 1

1.1 연구 배경 1

1.2 연구 목표 4

1.3 연구 절차 5

II. 하중 해석 7

2.1 풍력발전기 모델링 7

2.2 바람 모델링 및 하중 해석 12

III. 하이브리드 타워 모델링 21

3.1 직경 및 두께 계산 21

3.2 경제성 평가 24

IV. 하이브리드 타워 분석 30

4.1 하중 해석 30

4.2 진동 해석 35

4.3 정적 해석 37

4.3.1 변위 및 응력 분포 37

4.3.2 좌굴 해석 46

V. 결론 48



참고문헌 50
감사의 말 52
이력서 53
연구실적 54