中国电机工程学报2012，Vol.32Issue(32)：131-138,前插20,9.
考虑阴影影响的光伏阵列仿真算法研究
Study on Simulation Algorithm of PV Array Considering Shade Effect
摘要
Abstract
Output power of PV generation is undulatory and random. In order to improve the predictability of PV generation and accuracy of maximum power point tracking (MPPT), it is necessary to study the shade effect on PV array's output characteristics in depth. First, high dimension mathematical model of PV array was constructecf based on PV module unit, which considering bypass diode and blocking diode effect. And a fast simulation algorithm for PV array's output characteristic computing was proposed, that was applicable to different random shade conditions and easy to realize distributed computing. Simulation results under different shades demonstrate that PV array's output characteristics are closely related to distribution area and irradiance of shade. Meanwhile output characteristics of PV array are affected by shade significantly. Computing time is approximately linear related to PV array scale, and computing speed could be advanced by adopting distributed computing or reducing total number of discreted points. The proposed algorithm, which has clear physical meaning and is easy to realize, is groundwork for analysis and control of practical PV arrays.关键词
光伏阵列/阴影影响/I-U特性/分布式计算/仿真算法Key words
PV array/ shade effect/ I-U characteristic/ distributed computing/ simulation algorithm分类
信息技术与安全科学引用本文复制引用
戚军,张晓峰,张有兵,周文委..考虑阴影影响的光伏阵列仿真算法研究[J].中国电机工程学报,2012,32(32):131-138,前插20,9.基金项目
中国博士后科学基金项目(20110491825) （20110491825）
浙江省自然科学基金重点项目(Z1110893) （Z1110893）
