步进式双轴太阳跟踪运动控制方法的研究

Study on Step Tracking Control Strategy of 2-axis Sun Tracking System

太阳跟踪系统的运动控制是太阳跟踪技术的关键。提出一种步进式太阳跟踪控制方法,建立了步进式太阳跟踪理论控制算法,并通过理论仿真分析了不同运动控制参数对跟踪精度的影响。研究表明:该方法实际是以跟踪系统折线运行轨迹插补逼近太阳运行轨迹曲线,仿真结果证明了跟踪曲线与理论曲线能够很好地吻合,说明步进跟踪控制策略是可行的。该方法可以节省系统建造成本,降低系统自身能耗。

The key to the sun tracking technologies is their motion control. A step tracking control strategy of 2 - axis tracking system is presented. The control algorithm of step tracking motion control is put forward and the influences of different motion control parameters on the tracking actuary are also analyzed through theoretical simulation. The results indicate that the step tracking control strategy is actually approximating the sun trajectory curve with line tracking interpolation. The tracking curve coincides with the theoretical curve very well. The method features cost saving in system constructing and reduction of energy consumption of the system itself.