高压电器2026，Vol.62Issue(3)：29-38,10.DOI:10.13296/j.1001-1609.hva.2026.03.005
一种提高开关设备绝缘气体SF6泄漏判定鲁棒性的方法
Method for Improving the Robustness of SF6 Leakage Detection in Switchgear Insulation Gas
苏旭辉 1王志川 2方源 2李旭旭 2张琪 1宋科 3陈聪 4金海勇4
作者信息
- 1. 国网四川省电力公司阿坝供电公司,四川 阿坝 623299
- 2. 国网四川省电力公司,成都 610041
- 3. 国网四川省电力公司映秀湾水力发电总厂,四川汶川 624000
- 4. 上海乐研电气有限公司,上海 201802
- 折叠
摘要
Abstract
SF6 gas is widely used in high voltage apparatus due to its excellent insulation and arc extinguishing properties.During the long-term operation of the equipment,the leakage of SF6 gas is inevitable,which may affect the safe operation of the equipment.At present,SF6 gas density relays are mostly designed using a soft measurement model,the SF6 gas density is obtained by measuring the temperature and pressure of SF6 gas inside the gas compart-ment and also with help of specific model.However,the parameter drift of pressure sensor in long-term usage of the process is inevitable due to aging,resulting in excessive error of the the measured gas pressure and further affecting the accuracy of this type of soft measurement method as well as occurring the phenomenon of misjudgment or omis-sion.In this paper,based on the in-depth analysis of the commonly used Beattie-Bridgeman model,a more robust SF6 gas leakage state detection method is proposed by applying linear regression and the introduction of slope and regression indexes,its principle and key points of technical implementation are introduced,and the simulation ex-periments are designed to verify the performance of the method.The results show that the method is less affected by the accuracy of the sensor and more sensitive to gas leakage over the traditional method.The method provides a new idea for the development of high-performance SF6 gas density relay and has a high practical application value.关键词
SF6气体/高压电器设备/设备绝缘/泄漏判定/鲁棒性Key words
SF6 gas/high-voltage apparatus/equipment insulation/leakage detection/robustness引用本文复制引用
苏旭辉,王志川,方源,李旭旭,张琪,宋科,陈聪,金海勇..一种提高开关设备绝缘气体SF6泄漏判定鲁棒性的方法[J].高压电器,2026,62(3):29-38,10.
