电力系统自动化2025，Vol.49Issue(23)：48-56,9.DOI:10.7500/AEPS20250524001
基于拓扑-功率传输关系的柔性互联选址定容
Siting and Sizing for Flexible Interconnection Based on Relationship Between Topology and Power Transmission
摘要
Abstract
With the continuous increase in renewable energy integration,the traditional regional power grid pattern relying on 500 kV AC interconnection faces difficulties in effectively accommodating renewable energy due to the limited inter-area power exchange capability.Flexible interconnection technology can build direct source-load matching channels between renewable energy rich areas and load center areas,which helps reducing redundant power flow and enhancing the transmission capability of the grid.Optimizing flexible interconnection planning is essential for relieving the regional pressure of renewable energy accommodation.This paper proposes a siting and sizing planning method for flexible interconnection based on the relationship between topology and power transmission.First,the relationship between topology and power transmission is analyzed based on the complex network theory.Some indices are defined,including node topological connectivity,neighbor node support capability,and node anti-fragility capability,to quantify the contribution of each node to power transmission through a flexible interconnection channel.Then,a stepwise solving process is adopted.The pre-planning stage determines the siting and sizing range,and the replanning stage establishes a bi-level planning model for flexible interconnection in regional power grid,which considers total investment cost,node transmission contribution,and comprehensive operational benefits.Finally,a regional power grid in East China is used as a case.The effectiveness of the proposed planning method is validated through joint computation based on BPA and MATLAB.关键词
新能源消纳/输电网/柔性互联/复杂网络理论/选址定容/功率传输Key words
renewable energy accommodation/transmission network/flexible interconnection/complex network theory/siting and sizing/power transmission引用本文复制引用
吴熙,王银花,司金冬,华柯骞,许偲轩,蔡晖..基于拓扑-功率传输关系的柔性互联选址定容[J].电力系统自动化,2025,49(23):48-56,9.基金项目
国家重点研发计划资助项目(2022YFB2603100). This work is supported by National Key R&D Program of China(No.2022YFB2603100). （2022YFB2603100）
