摘要
基于自动跟踪光伏发电系统,对太阳位置的检测和光电池云台跟踪控制的问题进行了深入的分析,并提出了PID-Fuzzy分段式跟踪控制方法。通过对太阳方位角的分析计算和电池板方位角的检测,设计了以太阳方位角为输入量、电池板方位角为反馈量的PID-Fuzzy控制器。该控制器可以依据角度的偏差大小来自动切换控制规律,较好地解决了系统快速性和跟踪精度的问题。并且通过Matlab仿真和实验数据对该控制器性能进行了分析。结果表明,该方法不仅降低了调节时间,而且使控制跟踪精度在原有精度基础上提高了2%,有效地提高了光电转换效率,为同类跟踪系统提供了可行性方案。
Based on automatic tracking photovoltaic generation system,the paper in-depth analyzed the issues about how to determine the sun position and how to track control photocell platform,and proposed a PID-Fuzzy sectional tracking control strategy.Through analysis and calculation of solar azimuth and detection of solar panels azimuth,the PID-Fuzzy controller is designed to see sun azimuth as input,solar panels azimuth as feedback.The controller can automatically switch control way according to the size of deviation angle,which effectively solve the problems of rapidity and tracking accuracy.The controller performance is analyzed based on MATLAB simulation and experimental data.The results showed that the method not only reduced the adjustment time,but also increased 2% tracking accuracy compared with original accuracy,thus effectively improving the photoelectric conversion efficiency.The method provides feasibility programs for similar tracking systems.
出处
《江南大学学报（自然科学版）》
CAS
2010年第4期476-480,共5页
Joural of Jiangnan University (Natural Science Edition)
