摘要
研究了光伏阵列失配条件下理论建模方法,仿真模拟不同阴影比例遮挡的条件下,单电池片、光伏组件以及光伏阵列的输出性能和失配损失规律。基于光伏电池单二极管五参数模型和光伏阵列电路的4种约束,对带有旁路二极管的光伏组件电路和带有防反二极管的光伏阵列电路进行了详细的理论建模。验证了失配时短路电流为分段函数的临界电流,同时得到旁路二极管最多并联28片电池片,光伏组件最优并联3~8片旁路二极管,多峰P-V曲线的MPPT追踪点和旁路二极管通断的关系。
In this paper,the output performance and mismatch losing law of the single cell,PV module and PV array were respectively simulated under different shading conditions. Based on the solar cell single diode model with five parameters within four constraints of the PV array,the theoretical models for the PV modules with bypass diodes and PV arrays with anti-reverse current diodes were carefully analyzed in the paper. According to the experimental results,the short-circuit current is critical to subsection function,while the facts that the optimal constructions are one bypass diode connecting with 28 cells at most,and one PV module with 3 to 8 by pass diodes are also obtained. Meanwhile,relationships between the MPPT of P-V multi-peak curve and bypass diode on-off state are also drawn.
出处
《电力科学与工程》
2016年第10期34-41,共8页
Electric Power Science and Engineering
