摘要
提出基于贝叶斯概率计算权重的SF_6高压断路器综合状态评估方法。在构建层次性评估指标体系的基础上,针对各底层指标不同量化特点提出评分值计算函数;基于设备运行样本蕴含的底层指标与设备综合状态的关联性,采用贝叶斯公式计算底层指标项的权重。同时引入变权重公式解决上层性能指标相对劣化程度不均衡问题。实例计算表明,该方法能够较客观有效地评估SF_6高压断路器综合状态。
The paper presents an assessment approach of SF6 high-voltage circuit breakers based on weights of Bayesian probability. After constructing the assessment index system, the score functions of status items are proposed by analyzing their characteristics. The weights of status items are calculated by utilizing the association between status items and the states of circuit breakers. The variable-weight formula is adopted to settle the imbalance of comprehensive indices. The instances illustrates that the proposed approach is able to evaluate SF6 high-voltage circuit breakers eflectively.
作者
孙鹏
黄绪勇
耿苏杰
王秀利
SUN Peng;HUANG Xuyong;GENG Sujie;WANG Xiuli(Electric Power Research Institute, Yunnan Power Grid Company Limited, Kunming 650217, China;School of Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, China)
出处
《云南电力技术》
2018年第1期41-44,48,共5页
Yunnan Electric Power
关键词
高压断路器
状态评估
贝叶斯概率
变权重
high-voltage circuit breaker
conditional assessment
Bayesian probability
variable weight
