光伏阵列低能耗趋光性研究

摘要

According to the solar energy photovoltaic low array conversion efficiency, this paper proposes a simple and feasible and low energy consumption of photovoltaic array phototropism control method to improve the conversion efficiency of photovoltaic system. This method uses a dual-axis tracking mode use of astronomy formula, combined with the local geographical latitude and longitude information, a measurement of the different times of the sun's azimuth and elevation inclination, as a benchmark, a rough positioning, and based on the real-time light intensity data, the position of the PV array to precisely regulate. Full control of the system by the DSP and peripheral circuits.The practical value of this method is verified by the experimental data obtained.%针对太阳能光伏阵列转换效率低这一问题,提出了一种简单可行并且能耗低的光佚阵列趋光性控制方法,来提高光伏系统的转换效率.这里采用双轴追踪模式,利用天文学的计算公式,结合当地地理经纬度信息,测算出不同时刻的太阳的方位角和高度倾角,以此作为基准,进行粗略定位,并根据实时光照强度数据,对光佚阵列的位置进行精确调节.系统的全部控制均由DSP及外围电路来实现.通过实验所得到的数据验证了此方法的实用价值.