基于软件定义技术的分布式光伏组件故障诊断技术研究  

Research on fault diagnosis technology of distributed photovoltaic modules based on software definition technology

作　　者：王一凡 吴海[2] 周成[2] 王辉[2] 戴申鉴 WANG Yifan;WU Hai;ZHOU Cheng;WANG Hui;DAI Shenjian(Jiangsu Frontier Electric Power Technology Co.,Ltd.,Nanjing 211100,China;NARI Technology Development Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]江苏方天电力技术有限公司,江苏南京211100 [2]国电南瑞科技股份有限公司,江苏南京211100

出　　处：《电气应用》2023年第9期55-63,I0005,I0006,共11页Electrotechnical Application

基　　金：国家电网公司科技项目资助(5400-202233168A-1-1-ZN)。

摘　　要：新型电力系统背景下,台区侧分布式电源的大量接入是大势所趋,而分布式光伏组件的故障直接影响发电水平,因此如何对分布式光伏组件的故障进行在线诊断亟待技术突破。首先考虑终端实时性能要求,采用非对称处理技术构建智能终端硬件平台,采用虚拟化技术构建终端软件平台,形成多容器非对称处理数据交互系统。其次,在软硬件平台基础上,设计轻量级容器和应用管理技术等关键技术,构建终端边缘计算框架。再次,分析分布式光伏组件故障成因,通过数据预处理方法解决因数据失真和丢失引起的数据质量下降问题,设计分布式光伏组件Stacking融合方法,对分布式光伏故障进行分类,通过试验对各类方法进行对比性验证,并在终端软硬件和边缘计算框架基础上实现故障诊断功能。最后,对后续研究方向进行展望。Under the background of new power system,it is a general trend to connect a large number of distributed power sources at the substation side,and the fault of distributed photovoltaic modules directly affects the level of power generation.Therefore,how to diagnose the fault of distributed photovoltaic modules online is an urgent technical breakthrough.This paper first considers the real-time performance requirements of the terminal,uses asymmetric processing technology to build an intelligent terminal hardware platform,uses virtualization technology to build a terminal software platform,and forms a multi container asymmetric processing data interaction system.Secondly,on the basis of software and hardware platforms,key technologies such as lightweight container and application management technology are designed to build a terminal edge computing framework.Thirdly,analyze the causes of distributed PV module failures,solve the problem of data quality degradation caused by data distortion and loss through data pre-processing,design the stacking fusion method of distributed PV modules,classify distributed PV module failures,and carry out comparative verification of various methods through experiments,and realize fault diagnosis function on the basis of terminal software,hardware and edge computing framework.Finally,the future research direction is prospected.

关 键 词：新型电力系统 虚拟化技术 智能终端 分布式光伏组件 故障诊断 

分 类 号：TM615[电气工程—电力系统及自动化]