屋顶光伏系统大气过电压防护措施分析  

Analysis of Measures for Atmospheric Overvoltage Protection of Rooftop PV Systems

作　　者：陈谦 张金勇 CHEN Qian;ZHANG Jinyong(Shandong Yijiang Architectural Design Co.,Ltd.,Ji'nan 250022,China;Jinan Engineering Vocational Technical College,Ji'nan 250200,China)

机构地区：[1]山东意匠建筑设计有限公司,济南市250022 [2]济南工程职业技术学院,济南市250200

出　　处：《建筑电气》2024年第11期15-18,共4页Building Electricity

摘　　要：介绍3种雷击风险,其中大气过电压的损害源、风险情况具有特殊性;引用国际标准的最新要求和相关文献的最新成果,分析不设外部防雷装置的光伏系统感应过电压具体情况,重点解决电气装置大气过电压防护的风险评估和光伏系统大气过电压的特点、风险评估方法,以实际示例分析和解决光伏系统交流SPD和直流SPD的设置、选择,以及设置位置问题。In this paper,the risks of lightning strike in three scenarios are introduced.The damage source and risk of atmospheric overvoltage are considered based on specific conditions.By referring to the latest requirements in international standards and the latest results in relevant literature,this paper analyzes the induced overvoltage of PV systems without external lightning protection systems,focuses on risk assessment for atmospheric overvoltage protection of electrical installations and the characteristics of and methods for risk assessment ofatmospheric covervoltage eofPV systems,and providessolutions tothesetting,selection,and locating of AC SPD and DC SPD for PV systems based on case study.

关 键 词：光伏系统 大气过电压 风险评估 感应电涌 绝缘配合 计算风险水平 临界长度 电涌保护器 

分 类 号：TU895[建筑科学]