Discharge fault detection of dry air switchgear based on ZnO-MoS_(2) gas  

作　　者：Peng LI Ye YUAN Rong ZHOU Lin LI Hao CUI Ziheng PU Xuelin YANG 黎鹏;袁烨;周荣;李琳;崔豪;普子恒;杨学林

机构地区：[1]Hubei Provincial Engineering Technology Research Center for Power Transmission Line,China Three Gorges University [2]College of Electrical Engineering and New Energy,China Three Gorges University [3]State Grid Hubei Electric Power Co.,Ltd.Enshi Power Supply Company [4]College of Artificial Intelligence,Southwest University [5]College of Materials and Chemical Engineering,China Three Gorges University

出　　处：《Plasma Science and Technology》2025年第4期12-21,共10页等离子体科学和技术(英文版)

基　　金：the financial support of National Natural Science Foundation of China(Nos.52207175 and 52407178)。

摘　　要：When discharge faults occur in dry air switchgear,the air decomposes to produce diverse gases,with NO_(2) reaching the highest levels.Detecting the NO_(2) level can reflect the operation status of the equipment.This paper proposes to combine ZnO cluster with MoS_(2) to improve the gassensitive properties of the monolayer.Based on the Density Functional Theory(DFT),the effect of(ZnO)n size on the behavior of MoS_(2 )is considered.Key parameters such as adsorption energy and band gap of(ZnO)n-MoS_(2)/NO_(2) system were calculated.The ZnO-MoS_(2) heterojunction was successfully synthesized by a hydrothermal method.The gas sensor exhibits a remarkable response and a fast response-recovery time to 100 ppm NO_(2).In addition,it demonstrates excellent selectivity,long-term stability and a low detection limit.This work confirms the potential of the ZnO-MoS_(2) composite structure as a highly effective gas sensor for NO_(2) detection,which provides valuable theoretical and experimental insights for fault detection in dry air switchgear.

关 键 词：dry air switchgear discharge fault DFT ZnO-MoS_(2) gas sensing mechanism(Some figures may appear in colour only in the online journal) 

分 类 号：TM591[电气工程—电器]