摘要
根据某地实测的太阳辐射数据,仿真比较了配备有单轴跟踪和双轴跟踪等4种跟踪控制的光伏发电系统与固定式光伏发电系统的太阳辐射利用率。并在此基础上对4种跟踪系统的跟踪角控制规律及跟踪控制方式进行了详细的分析,得出倾纬度角单轴跟踪系统控制规律最为简单,算法实施更为实用的结论。同时,也在理论上证明了采用步进式控制方式的跟踪系统能够在保持较高太阳辐射利用率情况下简化控制系统设计,有利于工程设计及应用。
The output of solar PV power generation systems depends on the solar energy received by the PV army. Solar Tracking system can increase solar energy absorption. Based on the recorded solar radiation data, a simulation was carfled out and the results shows that tracking PV array receives more energy than the fixed PV array under the same circumstances. The tracking angle control algorithms of different tracking systems were also analyzed and tilted-latitude one axis tracking system has the simplest tracking control algorithm. Finally, theoretic analysis of stepwise tracking performance was studied. Compared with continuous tracking system, stepwise tracking system simplifies the tracking control system without any great loss in power.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2007年第2期169-173,共5页
Acta Energiae Solaris Sinica
关键词
光伏阵列
跟踪系统
仿真
PV array
tracking system
simulation
