To predict annual energy production (AEP) accurately in the wind farm where located in Seongsan, Jeju Island, Equivalent wind speed (EQ) which can consider vertical wind shear well than Hub height wind speed (HB) is calculated. AEP is produced by CFD model WindSim from National wind resource map. EQ shows a tendency to be underestimated about 2.7% (0.21 m/s) than HB. The difference becomes to be large at nighttime when wind shear is large. EQ can be also affected by atmospheric stability so that is classified by wind shear exponent (). AEP is increased by 11% when atmosphere becomes to be stabilized ( > 0.2) than it is convective ( < 0.1). However, it is found that extreme wind shear ( > 0.3) is hazardous for power generation. This results represent that AEP calculated by EQ can provide improved accuracy to short-term wind power forecast and wind resource assessment.

1. 서론
 2. 자료 및 연구방법
  2.1. 대상지역 및 기상자료
  2.2. 등가풍속 및 대기안정도 산정방법
  2.3. WindSim 설계 및 입력자료
 3. 결과 및 분석
  3.1. 등가풍속과 풍속연직시어의 관계
  3.2. 대기안정도에 따른 발전량 변화
 4. 결론
 감사의 글

• 류건화(부산대학교 지구환경시스템학부, Division of Earth Environmental System, Pusan National University) | Geon-Hwa Ryu
• 김동혁(부산대학교 환경연구원, Institute of Environment Studies, Pusan National University) | Dong-Hyeok Kim
• 이화운(부산대학교 지구환경시스템학부, Division of Earth Environmental System, Pusan National University) | Hwa-Woon Lee Corresponding author
• 박순영(부산대학교 환경연구원, Institute of Environment Studies, Pusan National University) | Soon-Young Park
• 김현구(한국에너지기술연구원, Korea Institute of Energy Research) | Hyun-Goo Kim