Measurement and Numerical Simulation of Discharge Characteristics in Air at Medium Frequency Voltages

Autor:	Florian Seifert, Stefan Jugelt, Carsten Leu
Rok vydání:	2021
Předmět:	Materials science Electric field Electrical breakdown Breakdown voltage High voltage Plasma Mechanics Electrical and Electronic Engineering Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Space charge Medium frequency Voltage
Zdroj:	IEEE Transactions on Dielectrics and Electrical Insulation. 28:1506-1513
ISSN:	1558-4135 1070-9878
DOI:	10.1109/tdei.2021.009553
Popis:	Due to the increasing use of power electronic converters in electrical grids, high voltage insulation systems are stressed by medium frequency voltages. The breakdown voltage of air decreases with increasing frequency especially for inhomogeneous electric fields. Here, breakdown voltages for different homogeneous and inhomogeneous electric fields are measured. Finite element method plasma simulations of space charge generation and their influence on the electric field distribution before the breakdown are done to support the explanation of the decreasing breakdown voltage in the frequency range from 50 Hz up to 30 kHz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::127a5dd034ee6979e508fdfb7cf97c1b https://doi.org/10.1109/tdei.2021.009553 Zobrazit plný text záznamu