确定电力系统运行综合效益关键指标集的Vague集方法

现有电力系统指标体系方面的研究主要侧重于对安全性与可靠性的评价,对系统运行综合效益评价方面的研究则较少。在此背景下,首先对发展电力系统运行综合效益评价指标体系这一重要问题做了系统的论述。之后,针对电力系统运行综合效益指标种类繁多的特点,首次提出了基于Vague集理论确定综合效益关键指标集的系统方法,并给出了具体的计算流程。基于Vague集理论的指标筛选方法可以同时考虑评价专家支持、反对和弃权三种意见对指标选取的影响,使得评价结果更为全面,并可降低评价专家的难度。这种方法也能应用于其它指标体系的建立和指标筛选问题。最后,采用算例对所提出的方法做了说明。

A vague set theory based approach for determining the key indicator set of power system comprehensive operation benefits

Most of the existing research work on developing an evaluation index system for power systems focuses on the evaluation of security and reliability,while less attention has been paid to evaluating the comprehensive operation benefits.Given this background,the issue of developing an index system for evaluating comprehensive operation benefits of power systems is first described in detail.Then,a Vague set theory based approach for determining the key indicator set of power system comprehensive operation benefits is presented with many kinds of benefits indices considered,and a solving procedure next developed.The Vague set theory based index screening method can accommodate different views of domain experts on index selection,and make the evaluation results more comprehensive and reasonable,and significantly reduce the difficulty of domain experts concerned.The proposed method can also be used to develop other evaluation index systems as well as to screen indices.Finally,a sample example is served for demonstrating the developed method.