Humidity Dependent Surface Charging In Air For HVDC Applications
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Electric power engineering (MPEPO), MSc
Publicerad
2024
Författare
Wang , Jin
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Abstract
This thesis investigates the dynamic interactions between surface charge generation at electrode-air interface and charge accumulation at dielectric-air interfaces under different atmospheric humidity, crucial for enhancing insulation performance in high-voltage direct current (HVDC) systems. Despite their critical role, the mechanisms of interface charging and the influences of humidity, have been underexplored.
Through comprehensive experimental setups and a detailed test matrix, this study systematically explores how varying humidity levels affect surface charge dynamics. Employing a new experimental setup with newly developed humidity control systems, the research offers insights into the charge generation mechanism by investigating the dielectric-air interface charge accumulation dynamics under different
stress conditions, providing a foundation for future enhancements in HVDC insulation technology.
Beskrivning
Ämne/nyckelord
Keywords: HVDC insulation, charge generation, charge accumulation, humidity, dielectric-air interfaces, electrical field strength, experimental setup.