水力发电2026，Vol.52Issue(7)：57-68,12.
计及网络拓扑灵活性的区域水电系统多电网协同优化方法
Multi-Grid Coordinated Optimization Method for Regional Hydropower Systems Considering Network Topology Flexibility
张州 1程雄 2曾晓涛 1孙静雯3
作者信息
- 1. 三峡大学电气与新能源学院,湖北 宜昌 443002
- 2. 梯级水电及新能源运行与控制湖北省重点实验室(三峡大学),湖北 宜昌 443002||三峡大学水利与环境学院,湖北 宜昌 443002
- 3. 三峡大学水利与环境学院,湖北 宜昌 443002
- 折叠
摘要
Abstract
In China's unique power grid structure,there exist regional grids operating in the border zones between the asynchronously operated State Grid and China Southern Grid.Despite their advantageous geographical location,these local grids are unable to fully utilize the inter-grid price spreads between the two major grids due to internal transmission congestion and complex hydraulic coupling.To address these challenges,this paper proposes a day-ahead coordinated optimization framework for local hydropower systems,which simultaneously optimizes generation schedules,multi-grid trading portfolios,and network topology.The framework integrates a line-screening method based on augmented sensitivity factors and an adaptive McCormick envelope linearization approach.Case simulations demonstrate that,through proactive network topology reconfiguration,the proposed framework significantly improves operational economy and physical efficiency:increasing electricity sales revenue by 2.89%during the wet season and reducing electricity purchase costs by 1.95%during the dry season.The results confirm that this framework can provide a computationally efficient and practically viable decision-support solution for local hydropower systems.关键词
梯级水电站/区域水电系统/多电网交易/最优传输切换/线性化方法Key words
cascade hydropower station/regional hydropower system/multi-grid trading/optimal transmission switching/linearization method分类
信息技术与安全科学引用本文复制引用
张州,程雄,曾晓涛,孙静雯..计及网络拓扑灵活性的区域水电系统多电网协同优化方法[J].水力发电,2026,52(7):57-68,12.
