摘要
基于包含旁路二极管和防逆二极管的BIPV阵列,采用非线性电路理论中的作图法求解光伏阵列的I-V输出特性,并给出采用集中最大功率跟踪(CMPPT)控制和分散最大功率跟踪(DMPPT)控制的BIPV发电系统结构。通过对不同阴影条件下不同规模的光伏阵列进行仿真分析,揭示了CMPPT导致功率损失的原因;并用三维图和等高线图展示了功率损失的主要影响因素,为BIPV的设计安装提供一些借鉴;最后评估了CMPPT对功率损失的影响程度,结果表明:即使跟踪到全局最大功率点(MPP),CMPPT控制在阴影时仍可能引起高达20%峰值功率的损失。
Based on BIPV array with bypass diodes and blocking diodes, the graphic method in nonlinear circuit theory was adopted to plot the I-V characteristic curve of PV array. The configurations of BIPV generation system controlled by centralized maximum power point tracking （CMPPT） or distributed maximum power point tracking （DMPPT） were presented. The simulations of PV array of different scales under different shadings reveal reasons for power loss induced by CMPPT. 3-D diagrams and contour maps depict the main impact factors of power loss. This is helpful for design and installation of BIPV array. The evaluation results showed that CMPPT control under shading will induce power loss up to 20% of peak power, even though global maximum power point （MPP） has been tracked.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2013年第6期1002-1009,共8页
Acta Energiae Solaris Sinica
基金
中国博士后科学基金(20110491825)
浙江省自然科学基金重点项目(Z1110893)
浙江省教育厅科研项目(Y201018398)
关键词
建筑集成光伏发电系统
光伏阵列
功率损失
最大功率点跟踪
阴影影响
building integrated photovohaic （BIPV） generation system
PV array
power loss
maximum powerpoint tracking （MPPT）
shading effect
