摘要
根据真实场景下配电自动化终端巡检信息、在线监测信息及历史信息等运行特征,优选客观合理的3类11个状态评价指标;采用层次分析法、熵权法相结合的组合赋权法确定了各评价指标的权重;利用模糊三角半梯形隶属函数模型建立了配电自动化终端状态评价体系。实例分析表明,与传统使用层次分析法、熵权法进行状态评价相比,组合赋权法能够大幅强化正确评价结果间的隶属度差异,避免了传统状态评估方法中的误判风险。因此,该方法不仅能够提升配电自动化终端状态评价的准确性,还可以为电力设备状态监测与故障诊断课程提供与工程实践结合紧密的实验方法。
According to the operation characteristics such as patrol inspection information,online monitoring information and historical information of distribution automation terminal in the real scene,the 11 state evaluation indexes of 3 categories are optimized objectively and reasonably.Moreover,analytic hierarchy process and entropy weight method are used combin one new method named combined weighting method to define the weight of each index.Finally,the state evaluation system of the distribution automation terminals is established using fuzzy triangular and semi-trapezoidal membership function model and selected composition operator.The example analysis shows that compared with the analytic hierarchy process or entropy weight method for state evaluation,the combined weighting method can greatly strengthen the difference of membership values between correct evaluation results,and avoid the risk of misjudgment in the traditional state evaluation methods.Therefore,the method can not only improve the accuracy of state evaluation of distribution automation terminals,but also provide an experimental method for the course of power equipment condition monitoring and fault diagnosis to help higher education in the new era.
作者
张鑫
牟龙华
徐志宇
ZHANG Xin;MU Longhua;XU Zhiyu(School of Electrical and Information Engineering,Tongji University,Shanghai 201804,China)
出处
《实验室研究与探索》
CAS
北大核心
2022年第9期15-21,共7页
Research and Exploration In Laboratory
基金
国家自然科学基金项目(61973238)
同济大学第十四期精品实验项目(0800104305)。
关键词
配电自动化终端
模糊综合评价
状态评价
组合赋权法
distribution automation terminals
fuzzy comprehensive evaluation
state evaluation
combined weighting method
