光伏组件雷电冲击损伤特性实验研究
Experimental Study on Lightning Impact Damage Characteristics of Photovoltaic Modules
刘璇 1黄彬 2臧秋莉 2李祥德 2许万红 2毕晓蕾 1张英杰1
作者信息
- 1. 化学品安全全国重点实验室,山东青岛 266104;中石化安全工程研究院有限公司,山东青岛 266104
- 2. 中国石化销售股份有限公司广东石油分公司,广东广州 510000
- 折叠
摘要
采用高电压及大电流冲击模拟实验,对光伏组件雷击损伤特性进行了分析,获取了雷击对光伏组件的损伤形貌、雷电路径、损伤阈值、电学特性变化等关键损伤特征.研究结果表明:在自然界雷电情况下,多数为光伏边框或支架接闪,20 kA的雷电流即可引起边框烧蚀;雷击会影响组件的功能和寿命,随着雷电冲击电压的增大,最大输出功率逐渐减小,冲击电压为300 kV时,最大输出功率变化率达到10.02％.基于雷击损伤实验模拟结果,可以为光伏系统的雷击防护提供数据支撑和参考依据.
Abstract
By using high voltage and high current im-pact simulation experiments,the lightning damage characteristics of photovoltaic modules were analyzed,and the key damage characteristics such as the dam-age morphology,lightning path,damage threshold and the change of electrical characteristics were ob-tained.The results showed that in the case of natural lightning,most of the photovoltaic frame or bracket was connected with lightning,and the lightning cur-rent of 20 kA can cause the border ablation.Light-ning will affect the function and life of the compo-nent.With the increase of lightning impulse voltage,the maximum output power gradually decreased.When the impulse voltage was 300 kV,the maximum output power change rate reached 10.02％.Based on the simulation results of lightning damage experi-ment,it can provide data support and reference for lightning protection of photovoltaic system.
关键词
光伏发电系统/雷击损伤/光伏组件/雷电流分量/烧蚀损伤/雷击防护Key words
photovoltaic power generation system/lightning damage/photovoltaic modules/lightning current component/ablation damage/lightning pro-tection引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据