{"title":"Heat Transfer Characteristics of Novel Resin Impregnated Paper Converter Transformer Valve-Side Bushing With Two-Phase Closed Thermosyphon","authors":"Qingyu Wang, Zishi Yang, Wei Hu, Zuoming Xu, Peng Liu, Zongren Peng","doi":"10.1049/hve2.70011","DOIUrl":null,"url":null,"abstract":"Resin impregnated paper (RIP) converter transformer valve-side bushings are the key equipment in converter stations. Local overheating of the RIP core not only reduces the transmission efficiency but also causes insulation failure of converter transformers. In this paper, a new heat dissipation structure is proposed to improve the temperature distribution homogeneity of the bushing using two-phase closed thermosyphon (TPCT). A test model is developed to determine the optimal working fluid inventory. Then, the temperature distribution of a ± 400-kV RIP converter transformer valve-side bushing with an optimised heat dissipation structure is obtained using the coupled three-dimensional electromagnetic-fluid-thermal numerical simulation method considering multiphase flow and phase change processes. The influence of the new structure on the electric field is analysed. The simulation result is verified by the temperature rise test. The results show that two-phase closed thermosyphon can reduce the maximum temperature of the RIP valve-side bushings and significantly improve the temperature distribution homogeneity.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"25 1","pages":""},"PeriodicalIF":4.4000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Voltage","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1049/hve2.70011","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Resin impregnated paper (RIP) converter transformer valve-side bushings are the key equipment in converter stations. Local overheating of the RIP core not only reduces the transmission efficiency but also causes insulation failure of converter transformers. In this paper, a new heat dissipation structure is proposed to improve the temperature distribution homogeneity of the bushing using two-phase closed thermosyphon (TPCT). A test model is developed to determine the optimal working fluid inventory. Then, the temperature distribution of a ± 400-kV RIP converter transformer valve-side bushing with an optimised heat dissipation structure is obtained using the coupled three-dimensional electromagnetic-fluid-thermal numerical simulation method considering multiphase flow and phase change processes. The influence of the new structure on the electric field is analysed. The simulation result is verified by the temperature rise test. The results show that two-phase closed thermosyphon can reduce the maximum temperature of the RIP valve-side bushings and significantly improve the temperature distribution homogeneity.
High VoltageEnergy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍:
High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include:
Electrical Insulation
● Outdoor, indoor, solid, liquid and gas insulation
● Transient voltages and overvoltage protection
● Nano-dielectrics and new insulation materials
● Condition monitoring and maintenance
Discharge and plasmas, pulsed power
● Electrical discharge, plasma generation and applications
● Interactions of plasma with surfaces
● Pulsed power science and technology
High-field effects
● Computation, measurements of Intensive Electromagnetic Field
● Electromagnetic compatibility
● Biomedical effects
● Environmental effects and protection
High Voltage Engineering
● Design problems, testing and measuring techniques
● Equipment development and asset management
● Smart Grid, live line working
● AC/DC power electronics
● UHV power transmission
Special Issues. Call for papers:
Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf
Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf