태양광 어레이 간 좌우 이격거리에 따른 순압력분포 특성

Abstract

In Korea, Solar photovoltaic power stations are increasing by supporting the ‘photovoltaic power generator project.’ Since photovoltaic power generators are outdoors and are directly exposed to the wind, they are greatly affected by strong winds such as typhoons. Recently, the damage caused by the increase in the intensity and frequency of typhoons is increasing. Due to the ease of maintenance and repair work, photovoltaic power generators are installed at distance between left/right of solar arrays arranged in the east-west direction. Therefore, in this study, the wind pressure distribution and peak net pressure coefficient acting on photovoltaic arrays were calculated by specifying the east-west separation distance as variables. To this end, the separated-distances were selected as 0.3m, 0.5m, and 1.0m, and a wind pressure test was conducted. In all variables, the peak net pressure coefficients in the upward direction at the upper corners on both sides of the array and in the downward direction at the lower corners were dominant. At the inner side of the array, the peak net pressure coefficient in the upward and downward directions was the largest when the separation distance was 0.3m, but the overall value was smaller than that of the outer side. The safety against the outer side should be considered more because the peak net pressure coefficient at the outer side due to eddy was higher than the funneling effect at the inner side for the left and right separation of the array.