基于改进综合关联模型的配电网可靠性相关因素分析

配电网可靠性日益受到用户和电力企业的重视,配电网可靠性规划也成为电力企业需要解决的问题,研究配电网可靠性的相关因素及其影响程度具有重要的意义。基于广义灰色关联理论提出了灰色距离关联度,并结合灰色相对关联度和灰色绝对关联度,提出了一种采用信息熵加权方法的改进综合关联模型。该模型能够综合不同角度的信息,全面地描述配电网可靠性指标和相关因素之间的几何相似程度。将该方法应用于配电系统可靠性相关因素分析,能够得到各相关因素对配电网可靠性指标影响的重要程度,为可靠性规划提供有益的参考。

Analysis of correlative factors about reliability of distribution system based on improved synthetic incidence model

Because users and corporations of electric power attach increasing importance to the reliability of distribution system,and the planning of which has become an issue to be resolved,so it is very important to study on the correlative factors and their importance of the reliability of distribution system.Based on the broad sense theory of Gray Incidence,this paper presents an improved synthetic incidence model,which adopts entropy method to weight each aspect.This model can integrate different aspects of information and describe the incidence between the characteristic sequence and its correlative sequences.When it is applied in the analysis relating to the reliability of distribution system,it can provide well advisement for the planning of reliability.