引用本文: | 黄绪勇,孙鹏,耿苏杰,等.基于关联规则和变权重系数的SF6高压断路器状态综合评估[J].电力系统保护与控制,2018,46(2):50-56.[点击复制] |
HUANG Xuyong,SUN Peng,GENG Sujie,et al.An assessment method of SF6 high-voltage circuit breaker based on association rules and variable weight coefficients[J].Power System Protection and Control,2018,46(2):50-56[点击复制] |
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摘要: |
鉴于目前高压断路器状态评估方法依靠人们主观经验确定指标权重的情况,提出一种基于实例样本统计规律的SF6高压断路器状态综合评估方法。根据试验和实时监测状态指标与断路器不同劣化特性的关联关系,构建层次性评估指标体系。通过分析不同状态指标量化特征,提出评分值计算函数;同时,基于关联规则置信度计算指标项的权重系数,以客观地量化它们的相对重要性。采用变权重方法并实验性地选取均衡参数来计算综合指标的权重系数,旨在解决综合状态相对劣化程度不均衡问题。实例计算表明,所提出的方法能够较客观有效地评估SF6高压断路器综合状态,为断路器安全管控和状态维护提供参考依据。 |
关键词: 高压断路器 状态评估 关联规则 变权重 |
DOI:10.7667/PSPC162086 |
投稿时间:2016-12-20 |
基金项目:国家自然科学基金项目(71571101) |
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An assessment method of SF6 high-voltage circuit breaker based on association rules and variable weight coefficients |
HUANG Xuyong,SUN Peng,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) |
Abstract: |
Considering that the existing assessment methods depend on expert’s experience and knowledge excessively, this paper presents an assessment method of SF6 high-voltage circuit breakers based on statistical regularity of samples of breakers. After identifying relations between the experimental and monitoring items and the deterioration properties of breakers, the assessment index system is constructed. The score functions of status items are proposed by analyzing their characteristics. Meanwhile, the weights of status items are calculated by using confidence coefficients of association rules to scale their relative importance quantitatively and objectively. The variable-weight formula is adopted and the equilibrium parameters are selected experimentally to calculate weight coefficients of comprehensive indices, thus to settle the imbalance of comprehensive state relative deterioration degree. The instances illustrate that the proposed method is able to evaluate the comprehensive state of SF6 high-voltage circuit breakers effectively, which provides a new method for safety control and condition maintenance of circuit breakers. This work is supported by National Natural Science Foundation of China (No.71571101). |
Key words: high-voltage circuit breaker conditional assessment association rule variable weight |