摘要
电力系统联络线功率交互能力的精准表征,有助于实现中国跨区电力传输的可执行性和最优性。然而,现有方法仅考虑基态场景电力系统联络线功率交互能力,忽略N-1故障场景对电力系统联络线功率交互能力的影响,无法实现联络线功率交互能力的精准表征。文中针对计及N-1约束的电力系统联络线功率交互能力展开研究,依据基态场景与N-1故障场景的耦合关系,提出基于解耦表征策略的N-1故障场景下电力系统联络线功率交互能力快速刻画方法;依据火电机组不同调控模式,分析N-1故障场景调控能力对电力系统联络线功率交互能力影响,辅助跨区电力资源优化配置决策制定。某省661节点系统算例表明:所提方法中能够精准、高效地表征联络线功率能力。
Accurate characterization of tie-line power transfer capability is essential for ensuring the feasibility and optimality of cross-regional power exchanges.However,existing methods typically consider only the base operating scenario and neglect N-1 contingencies,leading to inaccurate assessments of regional tie-line transfer capabilities.This paper addresses this gap by focusing on the tie-line exchange capability of power systems under N-1 contingency constraints.A fast determination strategy is proposed based on the coupling relationship between the base case and N-1 scenarios,using a decomposition approach.Furthermore,the impacts of various generator control modes on tie-line exchange capability under N-1 contingencies are analyzed to support the optimal allocation of cross-regional power transfers.The proposed methods is validated using a provincial-level power system,demonstrating its accuracy and practical effectiveness.
作者
肖强
周佳鑫
范璇
邵先琪
周倩
瞿圣朋
林伟
杨知方
XIAO Qiang;ZHOU Jiaxin;FAN Xuan;SHAO Xianqi;ZHOU Qian;QU Shengpeng;LIN Wei;YANG Zhifang(State Grid Chongqing Economic Research Institute,Chongqing 401120,P.R.China;State Grid Chongqing Electric Power Company,Chongqing 400015,P.R.China;School of Electrical Engineering,Chongqing University,Chongqing 400044,P.R.China;State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing 400044,P.R.China)
出处
《重庆大学学报》
北大核心
2025年第9期12-20,共9页
Journal of Chongqing University
作者简介
肖强(1989—),男,硕士,主要从事新能源发展研究,(E-mail)200911xsq@163.com。;通信作者:林伟,男,博士,(E-mail)wlin1994@hotmail.com。
