[논문]에너지 자립 마을 개발을 위한 공력 실증 데이터 분석

사지드 알리; 장춘만

doi:10.7316/khnes.2019.30.6.614

에너지 자립 마을 개발을 위한 공력 실증 데이터 분석
An Analysis of Wind Data for Development of Energy Independent Village 원문보기

한국수소 및 신에너지학회 논문집 = Transactions of the Korean Hydrogen and New Energy Society, v.30 no.6, 2019년, pp.614 - 620

사지드 알리 (한국과학기술대학교 스마트시티건설공학과) , 장춘만 (한국과학기술대학교 스마트시티건설공학과)

Abstract ▼ AI-Helper

In the present study, the wind characteristics were analyzed according to the time averages to evaluate the performance of small wind turbines required for the development of energy independent village. Measuring data of wind speed were recorded between January 2016 and April 2016 every second. Experimental data is averaged out using 5, 10, 15, 20 and 30 minute time steps. Throughout the experimental data analysis, 5 minutes averaged data is used to analyze the performance of the wind turbine, because it produces a minimum turbulence intensity in wind speed. The measuring power of the wind turbine is less than the designed value due to the unsteady nature wind of sudden changes in magnitude of wind speed and wind angle. Detailed wind conditions are also analysed using two variable Weibull probability density functions.

주제어

표/그림 (6)

그림 Fig. 1. Wind master installed at Deokjeok-do Island
그림 Fig. 2. TI variation with wind speed
그림 Fig. 3. Wind rose
표 Table 1. Weibull parameters
표 Table 2. Variation of wind speed according to wind direction
표 Table 3. Evaluation of probability density functions

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제안 방법

For optimal performance evaluation of the small Darrieus wind turbine, TI in wind speed having lower value is analyzed by introducing five time steps: 5, 10, 15, 20 and 30 minutes. It is recommended to use five minutes data averaging scheme while analyzing the performance of small Darrieus wind turbines installed at real site.
The purpose of present study is to evaluate which time step is best suitable for analyzing the performance of the small Darrieus wind turbine. In Fig.

대상 데이터

Wind data were collected using a vertical tower called the “wind master” at Deokjeok-do Island.

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