光电计算机控制发电中的最大功率点跟踪技术

Photovoltaic Maximum Power Point Tracking Technology of the Computer Control Power

在光伏计算机控制发电时,利用传统的电压回授算法进行计算机控制光伏发电的最大功率点跟踪,受到外界环境因素的影响较大,造成跟踪的稳定性较差,从而影响了计算机控制的精度和光电转换的效率。为了避免上述缺陷,提出了一种基于扰动观察算法的光电计算机控制发电中的最大功率点跟踪方法。计算光伏电池的占空比,并将其作为计算机控制参数,对光伏电池相关参数进行智能控制,从而使输出功率达到极大值,完成光伏电池最大功率点跟踪。实验结果表明,利用该控制方法进行光电计算机控制发电中的最大功率点跟踪,能够极大的提高光伏电池的光电转换效率,从而在有限的控制时间的基础上,获取更多的电能。

According to the computer control power, the traditional voltage feedback algorithm was used to the track the maximum power point, but the tracking stability was poorer, and the control precision and photoelectric conversion efficiency were influenced. In order to avoid these defects, a new photovoltaic maximum power point tracking technology of the computer control power was proposed based on the disturbance observation algorithm. The duty ratio of photovoltaic cells was calculated as the control parameters, the intelligent control was realized, and the output power could reach maximum value. The point tracking was obtained. Experimental results show that the new control method can greatly improve the photoelectric conversion efficiency of photovoltaic cells, and the more electricity was obtained with the finite time control.