A cost–benefit framework to evaluate capacity upgrade options in overhead line transmission planning

IF 4.2 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-10-04 DOI:10.1016/j.epsr.2025.112150

Youba Nait Belaid, Miguel Heleno

引用次数: 0

Abstract

This paper presents the methodology behind the new Reconductoring Economic and Financial Analysis (REFA) tool, an open-access software, used by transmission utilities to evaluate transmission capacity enhancement options. The proposed methodology is intended to be used in a new planning stage, after the capacity expansion and prior to the individual transmission project engineering, allowing capacity upgrade options (reconductoring, rebuild or voltage upgrade), and respective conductor selection, to be compared under the same economic basis. The REFA tool implements a methodology to rank project options and conductor types based on economic criteria, considering an approximation of the ampacity and sag constraints. Results, using 5 real transmission lines in the US, show that least-cost combinations of project and conductor types can be very diverse, which emphasizes the need for the proposed methodology and tool.

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评估架空线路输电规划中容量升级方案的成本效益框架

本文介绍了新的重导经济和财务分析（REFA）工具背后的方法，这是一种开放获取的软件，输电公司使用它来评估输电容量增强方案。所提出的方法旨在用于新的规划阶段，即容量扩展之后和单个输电项目工程之前，允许在相同的经济基础下比较容量升级选项（重导，重建或电压升级）和各自的导体选择。REFA工具实现了一种方法，根据经济标准对项目选项和导流器类型进行排序，同时考虑了容量和凹陷的近似限制。结果表明，在美国使用5条真实的输电线路，项目和导线类型的最低成本组合可以非常多样化，这强调了所提出的方法和工具的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.