基于对象选优的配电网可靠性提升投资方法

A reliability promotion investment method for distribution network based onoptimized selection of executive object

目前配电网可靠性改造实施对象的选择仅以供电可靠率为依据,难以切实提升用电体验,对此提出一种基于对象选优的配电网可靠性提升投资方法。首先,从供电可靠性水平、供电区域特点、用户期望和经济效益4个角度建立一套配电网可靠性提升需求度评价指标体系。然后,以可靠性提升需求度评价指标为基础,通过改进序关系法对配电网进行可靠性提升必要性评估排序。根据提升必要性评估结果,考虑总规划投资金额和各配电网的技改成本决定最终的可靠性提升方案。最后,以应用实例验证该文所提的可靠性提升选优方法具有较好的实际应用价值。

At present,whether a distribution network needs to be improve is solely determined by its power supply reliability,which will make it difficult to enhance power consumption experience effectively.This paper proposes a reliability promotion investment method for distribution network based on object selection for the first time.Firstly,an index system to evaluate demands of distribution network reliability promotion is established including power supply reliability index,region characteristic index,customers’expect index and economic effect index.Based on the index system,the reliability promotion necessity of distribution network is evaluated and ranked by improved order relation method.According to evaluation results,final reliability promotion planning is determined by total investment and technical transformation cost of each distribution network.Finally,an application example proves that the planning method proposed in this paper shows effectiveness and practical application value.