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고장사례 분석을 통한 제주 풍력발전 단지운영 개선방안

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Author(s)
허관구
Issued Date
2015
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000007412
Abstract
In this thesis, failures of three wind farms in Jeju island were analyzed by general classification related to mechanical issue, electrical issue, and control issue. Therefore, the improvement strategies of wind turbine operation were presented. These improvements were conducted by analyzing the failure from significant contributor of blade, generator, wind direction tracking system , and etc.
The failure analysis data were divided into different operation area and periods - A area (from 2004 to 2014), B area (from 2010 to 2014) and C area (from 2011 to 2014). Technically, all cases of failure were conceptually classified according to all failures in maintenance list and business report of wind farm of Jeju island. However, the failure in cases of either automatic stop after restarting or minor reset were excluded in this analysis.
As a result of failure analysis in each operation area, frequent failure field and facility express different patterns. Generally, in case of A operation area, the frequent of mechanical issue is higher than electrical and control field. In contrast, in cases of B and C area, it shows the opposite pattern compared to A area. Moreover, as a result of failure cases analysis of facility, blade system failures frequency appears relatively higher than other facilities in all area (A, B and C).
Through the failure cases analysis, the improvement plans of wind power operation involve in spare part preparation, constructed monitoring system and the necessity regular maintenance in all wind farms commonly. Improved manifold material, changes of wind direction and gauge type , improvement of nitrogen filling method for accumulator, main transformer room restructuring, exhaustive management oversight in design and construction were obtained in each wind farm area. In cases of spare part preparations, among the most frequent facilities system, items with high frequency of failure was efficiently set in priority because it is impossible to prepare all required maintenance spares practically.
Based on the improvement plan of wind power operation through failure cases analysis of wind farm, the annual-average capacity factor of wind generator and entire wind farm were respectively used to evaluate values of economic feasibility. Moreover, the power generation amount for calculating the amount of electricity sold was referred to SCADA database. It is confirmed that capacity factor improvement of 2.23%, 2.12%, and 2.53% for A, B, and C area, respectively, can be reached by applying improvement plan. We also investigated sales amounts of generated power, it was determined that the net profit could be obtained further as 1,702, 2,190, and 954 (one million won) for A, B, and C area, respectively.
Alternative Title
Improving Plan for Managing Jeju Wind Farms through the Failure Cases Analysis
Department
산업대학원 풍력공학과
Advisor
김호민
Awarded Date
2016. 2
Table Of Contents
그림 목차 ⅰ
표 목차 ⅲ
SUMMARY ⅵ
Ⅰ. 서 론 1
Ⅱ. 풍력발전기 개요 3
2.1 풍력발전시스템 개요 3
2.2 풍력발전기 구성 및 종류 4
Ⅲ. 풍력발전 개발 현황 및 제주 풍력단지 개요 9
3.1 세계 풍력발전 개발 현황 9
3.2 국내 풍력발전 개발 현황 11
3.3 제주풍력발전단지 개요 13
3.4 풍력발전단지별 발전기 사양비교 14
Ⅳ. 제주 풍력단지 고장사례 분석 15
4.1 분야별 고장빈도 분석 15
4.2 설비별 고장빈도 분석 18
Ⅴ. 지구별 단지운영 개선방안 및 전력손실량 해석 28
5.1 지구별 개선방안 28
5.2 지구별 전력 손실량 해석 35
5.3 개선방안 적용 시 지구별 기대효과 분석 39
Ⅵ. 결론 42
참고문헌 43
Degree
Master
Publisher
제주대학교 산업대학원
Citation
허관구. (2015). 고장사례 분석을 통한 제주 풍력발전 단지운영 개선방안
Type
Dissertation
Appears in Collections:
Graduate School of Industry > Wind Energy Engineering
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