中国电机工程学报Issue(34)：90-97,8.
武汉地区光伏组件最佳倾角的实验研究
Experimental Research on the Optimal Tilted Angle for PV Modules in Wuhan
摘要
Abstract
To achieve the optimal tilted angle (OTA) in the actual atmospheric environment and reveal the differences between it and the theoretical values, a series of comparative observational experiments were carried out with 15 pieces of different tilted photovoltaic (short for PV) modules. It is found that the daily and annual variation of the PV power generation of all modules showed a single peak. The observed OTA in winter half year (except March) is 45°, which is greater than the latitude angle, and the power generation can be increased by up to 63%compared with the horizontal module at the same period. The observed OTA in the summer half year is between 5° and 20°, which is less than the latitude angle, and the increasing rate of power generation is no more than 10%compared with that of the horizontal module. The OTAs in four seasons are 20°、10°、30° and 45° respectively. The annual power generation of the OTA module (30°) is 19%higher than that of 0° module. The changing trend of measured OTA is consistent with the theoretical calculation results and the measured value is greater than or equal to the calculated results (except November and December). The available energy calculated by sky anisotropic model is higher than that calculated by sky isotropic model, the difference can be up to 6.8%in winter. To increase (decrease) the inclination of PV array in winter (summer) will increase power generation significantly (to a certain degree). For adjustable PV array, there will be high power generation efficiency with OTA adjusted in March, May, September and October. The results can provide reference for applying solar energy resources to the most degree.关键词
光伏/最佳倾角/发电量/天空各向同性模型/天空各向异性模型Key words
photovoltaic (PV)/the optimal tilted angle(OTA)/power generation/sky isotropic model/sky anisotropic model分类
信息技术与安全科学引用本文复制引用
陈正洪,孙朋杰,成驰,严国刚..武汉地区光伏组件最佳倾角的实验研究[J].中国电机工程学报,2013,(34):90-97,8.基金项目
财政部行业(气象)科研专项(GYHY201306090， GYHY201006036)；华中区域气象中心科技发展基金重点项目(QY-Z-201203)；湖北省气象科技发展基金项目(2013Q06) （气象）
Public Sector (meteorological) Research Item of MOF (GYHY201306090, GYHY201006036) （meteorological）
Meteorological Sci.&Tech. fund of Huazhong Region (QY-Z-201203) and Hubei (2013Q06) （QY-Z-201203）
