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660kW 풍력터빈의 난류강도에 따른 운전특성

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Author(s)
양인섭
Issued Date
2019
URI
http://dcoll.jejunu.ac.kr/common/orgView/000000008809
Abstract
As a wind turbine operators, the operating characteristics and power variability of wind turbines are major concern. Wind turbines are operate by extreme winds and their operating characteristics are varied by turbulence. Understanding the Operating characteristics of wind turbines can help ensure stable operation of wind turbines and provide information to improve wind turbine systems. The wind turbine is a 660kW wind turbine (Vestas V47) installed in Hangwon of Jeju Island and operated by jeju National University. This wind turbine hub height is 45m, the rotor diameter is 47m, and the Fixed speed variable pitch type(FS-VP). The operation data collected from SCADA system of the target wind turbine during the first half of 2017 (January to June) and determined the disturbed sector according to Annex A of IEC 61400 12-1. The wind speed of the nacelle anemometer is disturbed by the influence of the rotor. Therefore, according to IEC 61400-12-2, NTF(Nacelle Transfer Function) is applied to obtain more accurate wind speed. Using the NTF data, analyze the power, rotation, blade pitch and temperature of the main parts by wind speed and observed to change of operation characteristics after main parts were replaced. In order to confirm the change of operating characteristics due to the turbulence, Based on turbulence intensity C-Class of the wind turbine class parameter of IEC 61400-1 (ed. 3), higher than Class C is defined as HTI(High turbulenc intensity) and under than Class C is defined as LTI(Low turbulence intensity). The turbulence Class data were analyzed to power and power coefficient, rotor speed, pitch angle by defined HTI, LTI.
Alternative Title
Operating Characteristics by Turbulence Intensity of 660kW Wind Turbines
Affiliation
제주대학교 대학원
Department
대학원 풍력특성화협동과정
Advisor
허종철
Awarded Date
2019. 2
Table Of Contents
List of Figures ii
List of Tables iv
Abstract 1
I. 서 론 2
1. 연구개요 2
2. 연구 목적 및 범위 3
II. 분석대상 및 방법 5
1. 분석대상 풍력터빈 5
2. 분석방법 13
2.1 유효방위각 산정 13
2.2 나셀 풍속 보정 15
2.3 풍속 정규화 17
III. 풍력터빈 운전특성 19
1. 풍속별 운전특성 19
1.1 풍속별 출력 변화 19
1.2 풍속별 회전수 및 피치 변화 20
1.3 풍속별 주요 부품의 온도 변화 22
2. 주요 부품 교체 후 운전특성 변화 25
IV. 난류강도에 따른 영향 32
1. 난류의 분류 33
2. 난류강도에 따른 출력 변화 34
3. 난류강도에 따른 회전수 및 피치 변화 38
V. 결론 42
참고문헌 44
Degree
Master
Publisher
제주대학교 대학원
Citation
양인섭. (2019). 660kW 풍력터빈의 난류강도에 따른 운전특성
Type
Dissertation
Appears in Collections:
General Graduate School > Multidisciplinary Graduate School Program for Wind Energy
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