配电变压器更换优先级模型

发布时间：2019-07-31 12:22

【摘要】：针对配电变压器更换优先级问题,提出一种以模糊层次分析法和灰色模糊理论为基础,涵盖多种评价因素的多层次配电变压器更换优先级模型,该模型包括建立评价体系并提出相应的计算方法。首先,采用模糊层次分析法针对不同种类的评价因素建立层次分析模型,并确定各因素的权重;结合专家经验确定权重的灰度,建立权重矩阵。其次,采用劣化度函数对数据进行处理,并使用隶属度函数描述数据与评价等级间的隶属关系;以灰度描述数据的充裕度,建立灰色模糊矩阵。最后,综合权重矩阵与灰色模糊矩阵,以最大隶属度为标准得出评价结果。计算实例表明该模型可以综合考虑多种因素并改善数据的模糊性与灰色性,合理地评估配电变压器的更换顺序,为配电变压器的经济运行提供了一种参考。
[Abstract]:Aiming at the priority problem of distribution transformer replacement, a multi-level distribution transformer replacement priority model based on fuzzy analytic hierarchy process (AHP) and grey fuzzy theory is proposed, which covers many evaluation factors. The model includes the establishment of evaluation system and the corresponding calculation method. Firstly, the fuzzy analytic hierarchy process (AHP) is used to establish the AHP model for different kinds of evaluation factors, and the weight of each factor is determined, and the gray level of the weight is determined according to the expert experience, and the weight matrix is established. Secondly, the deterioration function is used to process the data, and the membership function is used to describe the membership relationship between the data and the evaluation grade, and the grey fuzzy matrix is established to describe the adequacy of the data. Finally, the weight matrix and grey fuzzy matrix are synthesized, and the evaluation results are obtained according to the maximum membership degree. The calculation example shows that the model can comprehensively consider many factors and improve the fuzziness and gray of the data, and reasonably evaluate the replacement sequence of distribution transformer, which provides a reference for the economic operation of distribution transformer.
【作者单位】：山东大学电气工程学院;中国石油大学(华东)信息与控制工程学院电气工程系;国网山东电力集团检修公司;
【基金】：山东省科技发展计划(2014GGH204002)~~
【分类号】：TM421

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