基于热电耦合模型的光伏组件功率模拟  

Simulation of PV module power based on coupled thermal-electrical model

作　　者：彭硕 苏中元[1] PENG Shuo;SU Zhongyuan(School of Energy and Environment,Southeast University,Nanjing Jiangsu 210096,China)

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《电源技术》2022年第11期1330-1334,共5页Chinese Journal of Power Sources

摘　　要：光伏组件输出功率会受到环境因素的影响,针对评估光伏组件发电功率问题,提出了基于热电耦合的光伏组件功率计算模型。构建基于等效热阻的非稳态热学模型来计算组件工作温度,并与光伏电池双二极管电学模型耦合来模拟光伏组件的输出功率。为了评估模型的可靠性,分别对电学模型与热学模型进行验证,并选取一年中三种不同天气下组件输出功率数据与耦合模型模拟值比较。结果显示在不同天气下热电耦合模型模拟结果与实验数据误差较小,所提出模型具有较好的通用性和准确性。The output power of photovoltaic modules are affected by environmental conditions.A coupled thermalelectrical model was bulit to investigate the performance of PV modules under various weather conditions.Unsteady thermal model based on equivalent thermal resistance was built to estimate the cell temperature,a double-diode model was used with seven parameters to couple to simulate photovoltaic module power.In order to evaluate the reliability of the coupled model,the thermal model and the electrical model were verified respectively.The data of PV module power under three typical weather conditions in one year were selected for verification.The simulation results of the coupled electrical-thermal model were in good agreement with the experimental data under different weathers.The coupled model had great versatility and accuracy.

关 键 词：双二极管模型 热电耦合模型 光伏组件 

分 类 号：TM615[电气工程—电力系统及自动化]