中国电力2025，Vol.58Issue(2)：88-102,15.DOI:10.11930/j.issn.1004-9649.202407088
计及热网不同运行状态下灵活性供给能力的综合能源系统优化调度
Optimal Dispatch of Integrated Electric-Heat Energy System Considering Supply Flexibility of Heat Networks Under Different Operation States
摘要
Abstract
The increasing penetration of renewable energy sources has made the fluctuation of system net load increasingly prominent,posing higher flexibility requirements on system operation.To address this,an optimized dispatch strategy for integrated energy systems(IES)is proposed,taking into account the flexibility supply capacity under different operational states of the heating network.Firstly,based on interval optimization,the sub-hourly operational flexibility demand of the system is determined in response to the uncertainty of wind power and load.Secondly,by analyzing the impact of four types of changes in heat load and electrical net load on system operational flexibility and considering the upward/downward flexibility supply mechanism of combined heat and power units under dynamic heating network characteristics,a flexibility supply model for the heating network under different operational states is derived.Then,by clarifying the charging,discharging,and non-operating states of energy storage devices as well as their energy limit characteristics,a mathematical model for providing sub-hourly operational flexibility through energy storage is derived.A coordinated relationship between hourly-scale optimized dispatch decisions for the IES and sub-hourly operational flexibility constraints is established,thereby constructing an IES optimized dispatch model that takes into account the operational flexibility of multiple links including sources,networks,and storage.Finally,the proposed model is tested using the integrated energy E6-H8 and E57-H16 systems as examples,verifying that it can effectively improve system operational flexibility by optimizing energy storage and heating network flexibility resources.关键词
综合能源系统/源-网-储/运行灵活性/优化调度/多时间尺度Key words
integrated energy systems/source-net-storage/operation flexibility/optimal dispatching/multiple time scale引用本文复制引用
张玉敏,尹延宾,吉兴全,叶平峰,孙东磊,宋爱全..计及热网不同运行状态下灵活性供给能力的综合能源系统优化调度[J].中国电力,2025,58(2):88-102,15.基金项目
国家自然科学基金青年资助项目(52107111) （52107111）
中国博士后面上资助项目(2023M734092) （2023M734092）
山东省自然科学基金资助项目(ZR2022ME219). This work is supported by National Natural Science Foundation of China(No.52107111),China Post-Doctoral Program(No.2023M 734092)and Natural Science Foundation of Shandong Province(No.ZR2022ME219). （ZR2022ME219）
