基于非齐次泊松过程的高压断路器剩余电寿命预测及可靠性分析
Residual Electrical Lifetime Prediction and Reliability Analysis of High-voltage Circuit Breakers Based on Nonhomogeneous Poisson Process
郑彦斌 1宋朝晖 2王园园 3郭诚 1冯继亮 1常艳 3蔡志强 4贾栋4
作者信息
- 1. 西安西开电力装备智慧服务有限公司,陕西 西安 710077
- 2. 国家电网有限公司西北分部,陕西 西安 710048
- 3. 西安西电开关电气有限公司,陕西 西安 710077
- 4. 西北工业大学机电学院,陕西 西安 710072
- 折叠
摘要
高压断路器可保护电力设备和电网免受过电流和短路的损害,其正常运行对于特高压线路来说至关重要.从高压断路器相对电寿命曲线入手,分情况建立了断路器电触头可靠性数学模型,基于非齐次泊松过程对可靠性模型进行仿真验证,获取了更加符合实际退化过程的可靠性模型,实现了断路器剩余电寿命及可靠性值的定量预测,为断路器运行状态评估、故障诊断及检修策略制定提供了借鉴和参考.
Abstract
High-voltage circuit breakers play a crucial role in protecting power equipment and power grids from overcur-rent and short-circuit damage,especially for extra-high-voltage lines.This paper establishes a mathematical model for the reliability of circuit breaker electrical contacts in various scenarios,starting from the relative electrical lifetime curve of high-voltage circuit breakers.The reliability model is then simulated and verified using the nonhomogeneous Poisson process to get better alignment with the actual degradation process.The results of this study enable quantitative prediction of residual electrical lifetime and reliability of circuit breakers,and provide valuable insights for operational state assess-ment,fault diagnosis and overhaul strategy formulation with respect to high-voltage circuit breakers.
关键词
高压断路器/非齐次泊松过程/电寿命/可靠性建模Key words
high-voltage circuit breaker/nonhomogeneous Poisson process/electrical lifetime/reliability modeling引用本文复制引用
基金项目
西安西开电力装备智慧服务有限公司研究项目(DK2304)
出版年
2024
NETL
NSTL
万方数据