全球能源互联网2025，Vol.8Issue(3)：378-385,8.DOI:10.19705/j.cnki.issn2096-5125.2025.03.013
基于切换模型的光伏系统Boost变换器功率控制和数字孪生故障诊断方法
A Power Control Method and a Digital Twin Fault Diagnosis Approach of Boost Converter in Photovoltaic System Based on Switched Model
窦真兰 1张骋 2沈晓枉 2张春雁 1沈主浮2
作者信息
- 1. 国网上海市电力公司,上海市 虹口区 200080||国网上海综合能源服务有限公司,上海市 浦东新区 200023
- 2. 国网上海市电力公司,上海市 虹口区 200080
- 折叠
摘要
Abstract
The accurate mathematical model of DC/DC converter in photovoltaic power generation system is basis of system high-performance control and precise fault diagnosis.The conventional linear modeling method cannot accurately describe the working process of converter,thereby impeding the performance enhancement of system control and fault diagnosis.A power switching control method and a digital twin fault diagnosis method of Boost converter are proposed based on switched system theory.The proposed switching model realizes working process accurately description and digital twin state estimations of Boost converter.Meanwhile,the proposed power switching controller realizes power regulation and the proposed digital twin fault diagnosis realizes converter switches and sensors fault diagnosis.The proposed switching control has merits of simple structure,no control parameters and insensitive to the circuit parameters.The proposed digital twin fault diagnosis has advantages of high sensitivity and high identification accuracy.关键词
光伏系统/Boost变换器/切换模型/功率控制/数字孪生/故障诊断Key words
photovoltaic system/Boost converter/switched model/power control/digital twin/fault diagnosis分类
动力与电气工程引用本文复制引用
窦真兰,张骋,沈晓枉,张春雁,沈主浮..基于切换模型的光伏系统Boost变换器功率控制和数字孪生故障诊断方法[J].全球能源互联网,2025,8(3):378-385,8.
