摘要
通过采集某光伏电站内各种安装倾角下的同年发电量值,对比研究倾角对电站发电量的影响。采用倾斜面辐射量计算方法 Reindl模型计算对应角度下理论发电量,验证模型工程计算方法的适用性。在此基础上,按照春分、夏至、秋分和冬至4个节气每相邻两个节气的中间点为分界点,比较14°、34°和38°3种角度下光伏组件的发电能力,并计算在不考虑角度限制后的最佳季调倾角发电能力。结果显示,若在各季节分界点实施调节,3种倾角下全年发电量较固定倾角安装可提高约4.6%,不考虑角度限制后的可调倾角方案全年发电量比固定倾角可提高约5.7%。
The influence of different tilt angles on PV power generation was studied by analyzing the power generation data with different tilt angles of the same year in Lingwu, Ningxia. The engineering calculation method was verified by the theoretical electricity yield calculated using Reindl model for the radiation on inclined plane with same tilt angle. The power generation abilities of PV modules under l4°, 34°and 38° tilt angles were compared in the middle dividing points between the solar terms, the vernal equinox, summer solstice, autumnal equinox and winter solstice. Then the power output under optimally seasonal adjusting tilt angle was calculated. The results show that the annual electricity yield under the three tilt angles can increase 4.6% than that under 34° fixed tilt angle, if adjusting the setting angle in the dividing points. The seasonally adjustable tilt angle scheme can increase the annual electricity yield of 5.7% if not considering the three tilt angles limit.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第12期2973-2978,共6页
Acta Energiae Solaris Sinica
基金
2013年中国气象局气候变化专项项目
气候环境对光伏系统减排潜力影响评估(CCSF201348)
2013年中国大唐集团公司科技项目:光伏系统发电效率精细化建模及其提高方法的实验研究
关键词
光伏电站
固定倾角
可调倾角
发电小时数
PV power station
fixed tilt angle
adjustable tilt angle
available hours
作者简介
通信作者：范忠瑶（1981-），女，博士研究生、丁程师，主要从事新能源发电方面的研究。dtfanzy@126.com
