新的太阳能自动跟踪系统设计

Novel designing of solar automatic tracking system

针对目前单独采用算法跟踪实现的太阳能跟踪控制器累积误差大、实时性差的问题,提出了一种算法和传感器检测相结合的跟踪控制方法。算法依据天体运行规律计算太阳高度角和方位角并转化成相应脉冲驱动伺服电机跟踪太阳。传感器电路通过采样桥式电路的各个支路的光敏电阻的电压值,精确调整太阳能板位置。测试结果表明,新跟踪技术可以精确控制太阳能板位置并且显著提高了太阳能的利用率。

To solve the problem of cumulative error and real-time performance caused by adoptingalgorithm alone for solar tracking controller, a algorithm and a tracking control method together with thesensor inspection is proposed in the paper. The solar elevating angle and azimuth were calculated basedon the running laws of celestial bodies and transformed into the corresponding pulse servo motor drive totrack the sun. The sensor circuits precisely adjust the position of solar panel according to sample voltagevalues of photoresistance on every subcircuit of bridge circuit. Test results indicate that the new trackingtechnology can accurately control the position of solar panel and effectively improve the utilization ratioof solar energy.