基于太阳能输出电压的跟踪方法研究

Study on tracking method based on output voltage of solar cell

研究一种车载太阳能的自动跟踪方法。该方法以太阳能输出电压为细跟踪参数,以光敏管组成的比较电路输出电平为粗跟踪参数,并针对太阳能最大输出电压随车载电器负荷变化及天气状态变化的问题,对给定目标值采取了实时调节策略。由于跟踪参数直接取自于太阳能输出电压,因而较好地反映出了太阳能的实际跟踪状态。实验表明,即使车载电器负荷变化及天气状态变化,上述方法均能较好地满足太阳能的动态跟踪要求。

An automatic tracking method of solar energy on vehicle was studied in this paper. This method used the output voltage of solar cell as fine tracking parameter and the comparison output level of photosensitive elements as rough tracking parameter. Considering the maximum output voltage of solar cell often influenced by the vehicle electrical load and weather condition,a real-time adjustment strategy of tracking target values was taken into consideration. The tracking parameter was directly taken from the output voltage of solar cell,so the actual state of solar energy was well monitored. The experimental results show that, even if the vehicle electrical load and weather conditions change, the above method can better meet the requirements for dynamic tracking of solar energy.