高压电器2017，Vol.53Issue(9)：210-214,220,6.DOI:10.13296/j.1001-1609.hva.2017.09.036
电弧模型对500 kV GIS变电站VFTO的影响
Influence of Arcing Model on the Very Fast Transient Overvoltage in 500 kV GIS Substation
刘文博 1徐旸 2刘玉 3蓝磊 3张鹏 1杨德帅1
作者信息
- 1. 天津市电力公司检修公司,天津300143
- 2. 云南电网有限责任公司物流服务中心,昆明650000
- 3. 武汉大学电气工程学院,武汉430072
- 折叠
摘要
Abstract
In the research process of very fast transient overvoltage (VFTO),the establishment of an equivalent model which simulates the breakdown and extinction of arc caused by disconnector switching,has great effect on the result of VFTO calculation.A dynamic arcing model is established using the MODELS of ATP-EMTP.The model is based on the arcing analysis theory of Mayr,and takes the influence of arc extinguishing in the point when current reaches zero into consideration.Moreover,taking a 500 kV gas insulated station (GIS) as a calculation example,this paper comparesthe dynamic model with other two models,and analyzes their properties.Since the dynamic model considers the variation of arc resistance,the result shows that VFTO amplitude decreased and frequency in the extinction phase increased,when compared to the other two conditions.By the theoretical analysis,the dynamic variation of arc resistance is taken into account or not,has important significance for the VFTO simulation result.关键词
气体绝缘变电站/隔离开关/电弧模型/特快速瞬态过电压Key words
GIS/isconnector/arcing model/VFTO引用本文复制引用
刘文博,徐旸,刘玉,蓝磊,张鹏,杨德帅..电弧模型对500 kV GIS变电站VFTO的影响[J].高压电器,2017,53(9):210-214,220,6.
