光伏发电用直流熔断器的额定电流计算方法与设计选型研究

RESEARCH ON RATED CURRENT CALCULATION METHOD AND DESIGN SELECTION OF DC FUSE FOR PV POWER GENERATION

虽然国内外与光伏发电相关的设计标准在不断更新,但鲜见相关国际标准的详细解读。基于此,介绍了IEC、NEC等国际标准关于光伏发电用直流熔断器的额定电流计算方法及设计选型,分析了不同标准之间的差异,进行了案例计算,并给出了选型建议。以期该研究可为光伏发电系统设计者提供选型设计参考。

Although the design standards related to PV power generation at home and abroad are constantly updated,there is a lack of detailed interpretation of relevant international standards. Based on this,this paper introduces the rated current calculation methods and design selection of DC fuses for PV power generation in IEC,NEC and other international standards,analyzes the differences between different standards,and conducts case calculations,and gives suggestions for selection. It is hoped that this research can provide a reference for the selection and design of PV power generation system designers.