中国电机工程学报2025，Vol.45Issue(10)：3801-3812,中插9,13.DOI:10.13334/j.0258-8013.pcsee.232450
考虑架空线路动态热定值的输电网与储能协同鲁棒规划方法
Coordinated Robust Planning Method for Transmission Network and Energy Storage Considering Dynamic Thermal Rating of Overhead Lines
摘要
Abstract
Due to the randomness and volatility of renewable energy generation,the integration of large renewable energy bases such as"deserts,gobi,wastelands"leads to complex and variable power flow in the power grid,increasing the probability of line blockage,which poses new challenges to transmission network planning.Dynamic thermal rating(DTR)technology can evaluate the current carrying capacity of transmission lines based on weather conditions and equipment status,effectively tapping into the flexibility of the power grid.In addition,the bidirectional rapid regulation of energy storage can also alleviate the transmission pressure and have a certain transmission substitution effect.Therefore,this paper proposes a collaborative robust planning model for transmission network and energy storage that incorporates the DTR system configuration.To fully explore the synergistic effect of transmission line DTR system and energy storage,the typical daily operation simulation is embedded in the planning model.Using typical daily meteorological data from multiple regions,the dynamic transmission capacity of power lines is assessed through the DTR evaluation method.Additionally,the uncertainty in renewable energy output is addressed using robust optimization techniques,allowing for better utilization of energy storage's flexible regulation capabilities.An improved column and constraint generation(C&CG)algorithm is proposed for solving the robust planning model,and an imprecise C&CG iteration method is used to accelerate the solution.The analysis of the northwest power grid indicates that by co-planning transmission networks and energy storage while considering DTR,the number of planned lines can be reduced from 29 to 10.This approach also enhances the efficiency of line utilization.Furthermore,it decreases the system's operating costs by 9.6％and increases the renewable energy accommodation rate from 87.7％to 95.1％.关键词
输电网规划/动态热定值/储能/鲁棒优化/改进列约束生成算法Key words
transmission network planning/dynamic thermal rating/energy storage/robust optimization/improved column and constraint generation(C&CG)algorithm分类
信息技术与安全科学引用本文复制引用
张智,周明,郭尊,武昭原,陈艳波,李庚银..考虑架空线路动态热定值的输电网与储能协同鲁棒规划方法[J].中国电机工程学报,2025,45(10):3801-3812,中插9,13.基金项目
国家重点研发计划项目(2022YFB2403100) （2022YFB2403100）
中国博士后科学基金面上项目(2024M750893) （2024M750893）
国家资助博士后研究人员计划(GZC20240463).National Key R&D Program of China(2022YFB2403100) （GZC20240463）
China Postdoctoral Science Foundation General Funding Project(2024M750893) （2024M750893）
Postdoctoral Fellowship Program of CPSF(GZC20240463). （GZC20240463）
