| 引用本文: | 齐先军,彭翔天,张晶晶.基于浴盆形故障率函数的配电系统可靠性评估算法[J].电力系统保护与控制,2015,43(5):81-87.[点击复制] |
| QI Xianjun,PENG Xiangtian,ZHANG Jingjing.Reliability evaluation algorithm of power distribution system based on bathtub-shaped hazard function[J].Power System Protection and Control,2015,43(5):81-87[点击复制] |
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| 摘要: |
| 为揭示配电系统元件在其寿命周期内实际工作过程及对配电系统可靠性的影响，将浴盆形故障率函数的概念应用于配电系统元件可靠性建模中。使用改进威布尔分布和对数正态分布分别模拟元件寿命周期和修复时间，更加符合工程实际；利用序列运算理论来计算配电系统可靠性指标的分布和期望，克服了传统配电系统可靠性评估解析法不能应用于非指数系统中的缺陷，为配电网可靠性评估提供了一种新的思路。通过对RBTS-BUS6测试系统的算例分析，验证了所述方法的可行性。 |
| 关键词: 配电系统可靠性 浴盆形故障率函数 改进威布尔分布 对数正态分布 非指数系统 序列运算理论 |
| DOI：10.7667/j.issn.1674-3415.2015.05.013 |
| 投稿时间：2014-05-26修订日期：2014-10-30 |
| 基金项目:国家自然科学基金项目(51007017) |
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| Reliability evaluation algorithm of power distribution system based on bathtub-shaped hazard function |
| QI Xianjun,PENG Xiangtian,ZHANG Jingjing |
| (Anhui New Energy Utilization and Energy Saving Laboratory, Hefei University of Technology, Hefei 230009, China) |
| Abstract: |
| To reflect the components' real working process during the lifespan and its impact on the reliability of power distribution system, the concept of bathtub-shaped hazard function is applied to components' reliability modeling. It is more agreeable with the engineering practice to use the modified Weibull distribution and the logarithmic normal distribution to describe the lifespan and the time to repair respectively. The sequence operation theory is applied to calculate the probability distributions and the expectations of power distribution system reliability index, thus overcoming the defect of traditional analytical method that cannot deal with the non-exponential distribution system, and providing a new approach to reliability evaluation. The effectiveness of the proposed method is verified by a case study of RBTS-BUS6 system. |
| Key words: power distribution system reliability bathtub-shaped hazard function modified Weibull distribution logarithmic normal distribution non-exponential distribution system sequence operation theory |
