考虑指标关联的配电网设备利用率综合评价

发布时间：2018-01-16 22:18

本文关键词：考虑指标关联的配电网设备利用率综合评价　出处：《电力系统及其自动化学报》2017年10期 　论文类型：期刊论文

【摘要】：针对当前配电网设备利用率缺少评价方法,且指标关联性强的问题,提出一种考虑指标关联的配电网设备利用率评价模型。首先,从供电可靠性、网络结构、负荷特性、负荷供应能力和电网建设裕度等配电网影响因素中,提炼出多个配电网设备利用率指标;然后,采用灰色关联阈值变权方法对层次分析法AHP(analytic hierar-chy process)确定的权重进行调整,避免指标关联造成的影响;最后,提出一种利用调整后的权重和最优化思想确定模糊测度的方法,采用Choquet模糊积分对多个指标的评价值非线性聚合,得到综合评价值。通过对某电网5个地区的配电网设备利用率情况进行评价,并与传统评价方法对比,验证了所提方法的实用性和合理性。
[Abstract]:In view of the lack of evaluation method of distribution network equipment utilization ratio and the problem of strong correlation of indicators, this paper proposes an evaluation model of distribution network equipment utilization efficiency considering index correlation. Firstly, from the power supply reliability, network structure. The factors affecting the distribution network, such as load characteristics, load supply capacity and power grid construction margin, are abstracted from several distribution network equipment utilization indexes. Then, the weight determined by AHP(analytic hierar-chy process is adjusted by grey correlation threshold variable weight method. Avoiding the impact of indicator linkages; Finally, a method of determining fuzzy measure by using the adjusted weight and optimization idea is proposed. The Choquet fuzzy integral is applied to the nonlinear aggregation of the evaluation values of several indexes. Through the evaluation of the utilization ratio of distribution network equipment in five areas of a power network, the practicability and reasonableness of the proposed method are verified by comparing with the traditional evaluation method.
【作者单位】：湖南大学电气与信息工程学院;
【分类号】：TM732
【正文快照】： 配电系统作为电力系统与用户连接的终端环节,对系统的整体效率和用户的用电质量与可靠性有着直接的影响。长久以来,电力行业对于反映供电质量的电压合格率、反映运行经济性的线损率和反映供电持续性的可靠率都有比较多的研究成果[1-5],而用于反映配电网建设经济性和电网资产使

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