한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2006년도 춘계학술대회논문집
- /
- Pages.941-945
- /
- 2006
- /
- 1598-2548(pISSN)
파워 조절 방법에 따른 풍력 터번 발전기의 방사 소음 특성
Characteristics of Noise Emission from Wind Turbine Generator According to Methods of Power Regulation
- 정성수 (한국표준과학연구원 물리표준부 역학그룹) ;
-
정완섭
(한국표준과학연구원 물리표준부 역학그룹) ;
- 신수현 (자동차부품혁신세터) ;
- 전세종 (한국표준과학연구원 물리표준부 역학그룹) ;
-
최용문
(한국표준과학연구원 물리표준부 역학그룹) ;
-
정철웅
(부산대학교 기계설계공학과)
- Jung, Sung-Soo ;
-
Cheung, Wan-Sup
;
- Shin, Su-Hyun ;
- Chun, Se-Jong ;
-
Choi, Yong-Moon
;
-
Cheong, Cheol-Ung
- 발행 : 2006.05.01
초록
In the development of electricity generating wind turbines for wind farm application, only two types have survived as the methods of power regulation; stall regulation and fun span pitch control. The sound measurement procedures of IEC 61400-11 are applied to field test and evaluation of noise emission from each of 1.5 MW and 660 kW wind turbine generators (WTG) utilizing the stall regulation and the pitch control for the power regulation, respectively. Apparent sound power level, wind speed dependence and third-octave band levels are evaluated for both of WTGs. It is found that while 1.5 MW WTG using the stall control is found to emit lower sound power than 660 kW one using the pitch control at low wind speed (below 8 m/s), sound power from the former becomes greater than that of the latter in the higher wind speed. Equivalent continuous sound pressure levels (ECSPL) of the stall control type of WTG vary more widely with wind speed than those of the pitch control type of WTG These characteristics are believed to be strongly dependent on the basic difference of the airflow around the blade between the stall regulation and the pitch control types of WTG. These characteristics according to the methods of power regulation lead to the very different noise emission characteristics of WTG depending on the seasons because the average wind speed in summer is lower than the critical velocity over which the airflow on the suction side of blade in the stall types of WT are separated. These results propose that, in view of environmental noise regulation, the developer of wind farm should give enough considerations to the choice of power regulation of their WTG based on the weather conditions of potential wind farm locations.
키워드