Hong Shen, Zhonghao Dongye, Mian Xiao, Jiayi Shao, Xiangyu Zhang, Yao Yao, Zifan Dong, Lei Qi
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引用次数: 0
Abstract
The submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas-insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar transistors (IGBTs). This work presents an embedded circuit that utilises a gap in conjunction with a metal oxide varistor (MOV) to control the voltage of the surge arrester and prevent false triggers during the transient phase when the IGBT is turned off. The mechanism of VFTO is analysed. Moreover, the design idea is suggested and the gap-MOV circuit is constructed. Ultimately, experiments are conducted to validate the effectiveness of the suggested gap-MOV in suppressing overvoltage.
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
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