基于多级可拓评价法的配电网规划经济效益评估模型

Economic Benefit Evaluation Model of Distribution Network Planning Based on Multi-level Extension Evaluation Method

配电网规划经济效益合理的评估,有利于配电网的科学发展,实现配电网效益的最大化。结合配电网自身特点,从运行经济效益、企业财务效益和社会经济效益3个方面构建了配电网规划经济效益评估指标体系,并将全寿命周期成本(LCC)理论引入到企业财务效益评估指标的分析计算中,从长期经济效益出发,全面考虑配电网不同阶段的成本;运用区间层次分析法确定各项指标的综合权重,有效解决了评估过程中的复杂性和影响因素的不确定性等问题;引入物元可拓理论,建立了基于多级可拓评价法的配电网规划经济效益评估模型;以某地区配电网规划方案为例,验证了所建评估模型的合理性和有效性。

Reasonable economic benefit evaluation of distribution network planning favors the scientific development of the distribution network, and realizing the maximization of power distribution network benefits. Based on the characteristics of distribution network, an economic benefit evaluation index system is developed for distribution network planning. From the respects of the run economic benefits, enterprise financial and social economic benefits, the Life Cycle Cost（LCC） theory is introduced to the analysis and calculation of enterprise financial performance evaluation indicators. Starting from the long-term economic benefits, the distribution network costs in various stages are fully consided. The Interval Analytic Hierarchy Process （IAHP） is applied to determine the comprehensive weight of each index, which effectively solves the complexity of the evaluation process and the uncertainty of influencing factors. The Matter-Element Extension theory is introduced to build the economic benefit evaluation model of distribution network planning based on Multi-Level Extension Evaluation method. Finally, the rationality and validity of the evaluation model is verified through a case study of a regional distribution network planning.