摘要
继电保护设备状态检修工作的开展需要建立在科学的评价之上,而指标权重选取的客观性正是科学合理评价的基础.依照状态评价指标体系的构建规则,筛选出继电保护设备主要状态特征量,构建了相应的评价模型.在根据层次分析法和专家法确定继电保护设备各状态指标权重的基础上,利用贝叶斯理论的先验概率思想,将历史经验和相关结论应用于评价中.进一步提取、融合继电保护设备实际运行数据特征,得到权重的后验分布,对状态量权重进行更为合理的更新.算例证明,基于贝叶斯理论的权重更新,能够更加科学地评价继电保护设备的状态.
The state maintenance of relay protection equipments requires scientific evaluation of the condition of equipments; and the objective selection of indices weights is the basis for scientific and reasonable evaluation of relay protection equipments. According to the principle of state evaluation index system, the main state parameters of relay protection equipment are selected; and a state parameter evaluation model of relay protection equipments is constructed. Based on the analytic hierarchy process （AHP） and expert method to determine the relay protection equipment status indices weights, this paper uses the prior probabilities of Bayesian theory to apply the empirical conclusions of predecessors to the evaluation. And it further combines the actual situation data of relay protection equipments, the posterior distribution of weights is obtained, so as to make the status of weights more reasonable and updating. It is proved that the weight updating based on Bayesian theory can more scientifically evaluate the state of relay protection equipments.
作者
徐长宝
应黎明
罗先成
赵立进
高吉普
黄良
谭济珽
XU Changbao YING Liming LUO Xiancheng ZHAO Lijin GAO Jipu HUANG Liang TAN Jiting(Electric Power Research Institute, Guizhou Power Grid Co. , Ltd. , Guiyang 550002,China School of Electrical Engineering, Wuhan University, Wuhan 430072, China Maintenance Company, State Grid Hunan Electric Power Corporation, Changsha 410007, China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2017年第5期738-744,共7页
Engineering Journal of Wuhan University
基金
中国南方电网有限责任公司重点科技项目(编号:GZ2014-2-0049)
关键词
继电保护设备
层次分析法
贝叶斯理论
状态评价
权重
relay protection equipment
analytic hierarchy process （AHP）
Bayesian theory
state evaluation
weights
