摘要
考虑大气透明度的影响,根据太阳直接辐射强度公式,建立太阳能光伏电池板的高度角自动跟踪模型。数据处理结果表明一天中太阳直接辐射强度与时间成线性关系,从而得到太阳相对辐射通量变化率跟跟踪精度的关系。仿真结果表明:在75°高度角的跟踪范围内,即使角度差为10,°太阳相对辐射通量变化率也仅为0.8%。对于非聚焦的太阳光伏发电系统的方向跟踪而言,精度无需太高,高性能低成本是设计制造跟踪系统应该追求的目标。
Considered the effect of atmospheric transparency and based on direct solar radiation intensity, the azimuth automatic tracking model of solar panel is proposed. The direct solar radiation intensity is linearity with the time approximately in one day from data processing, the relations between tracking accuracy to relative solar radiant flux rate is obtained. Theories show that when the scope of tracking altitude angle is 75° with an error of 10° altitude angle, relative solar radiant flux rate is only 0. 8%. In a word, it is not necessary for the solar photovoltaic generation system to have high precision in its direction-tracking control. Low cost and high reliability are the goals in manufacturing and designing of the tracking system.
出处
《光电子技术》
CAS
2008年第3期170-173,共4页
Optoelectronic Technology
基金
广西自然科学基金项目(0542046)
广西研究生教育创新计划项目(2006105950701M03)
关键词
太阳能
自动跟踪
精度
高度角
solar energy
automatic tracking
precision
azimuth
