电力建设2026，Vol.47Issue(9)：91-101,11.DOI:10.12204/j.issn.1000-7229.2026.09.007
考虑短时线路动态增容的多区域电网备用优化
Optimization of Power Reserve in Multi-Area Power Grid Considering Short-Term Dynamic Line Rating
摘要
Abstract
[Objective]To address source-load fluctuations in systems with high-penetration renewable energy,the rational arrangement and effective dispatch of power reserves should be ensured.Given this background,a multi-area power grid reserve optimization method considering short-term dynamic line rating(SDLR)is proposed.[Methods]Firstly,a network-wide source-load fluctuation scenario based on chance constraints is constructed.By pre-scheduling regional reserve capacity to guarantee the regulation capability of each area,network-wide and regional risk coordination is achieved.Secondly,an intra-day reserve optimization method considering SDLR and demand-side resources is proposed to realize the efficient utilization of line transmission capacity and ensure the effectiveness of reserve dispatch.Finally,the proposed method is verified and analyzed using a simplified provincial transmission network.[Results]The result demonstrate that by integrating SDLR,the actual reserve dispatch ratio increases from 4.73%under traditional static security constraints to 20.06%,and the system operation risk cost is reduced by 58.3%.[Conclusions]The proposed method can mitigate line congestion and reduce the risks of load shedding and renewable energy curtailment,effectively improving the power supply reliability and operational economic efficiency of multi-area power grids.关键词
备用优化/短时线路动态增容/源荷波动/需求侧资源/风险协调/机会约束Key words
reserve optimization/short-term dynamic line rating/source-load fluctuation/demand-side resources/risk coordination/chance constraints分类
信息技术与安全科学引用本文复制引用
刘胤均,余顺江,俞鸿飞,陶文伟,曾勇杰,林振智..考虑短时线路动态增容的多区域电网备用优化[J].电力建设,2026,47(9):91-101,11.基金项目
This work is supported by Smart Grid-National Science and Technology Major Project(2030)(No.2026ZD0809800). 智能电网国家科技重大专项(2030)(2026ZD0809800) （2030）
