考虑动态频率响应的火电-储能调频优化控制  

Optimal control of frequency modulation for thermal power and energy storage con⁃sidering dynamic frequency response

作　　者：马杰 于振博 郝元钊 张又文 李翠萍[2] 全少理 MA Jie;YU Zhenbo;HAO Yuanzhao;ZHANG Youwen;LI Cuiping;QUAN Shaoli(State Grid Henan Economic Research Institute,Zhengzhou 450052,China;Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education(Northeast Electric Power University),Jilin,Jilin 132012,China;State Grid Henan Electric Power Company,Zhengzhou 450018,China)

机构地区：[1]国网河南省电力公司经济技术研究院,郑州450052 [2]现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林吉林132012 [3]国网河南省电力公司,郑州450018

出　　处：《浙江电力》2025年第3期10-21,共12页Zhejiang Electric Power

基　　金：国网河南省电力公司科技项目(5217L0230013)。

摘　　要：针对高比例新能源电力系统中惯量降低、调频容量不足引发的频率安全问题,提出一种考虑动态频率响应的火电-储能优化调度控制策略。首先对新能源光伏并网场景建立电力系统动态频率响应模型,建立准确量化系统整体频率波动特征的表达式。然后建立含储能电源的电力系统调频模型,以系统运行经济性最优为目标,考虑系统运行约束与动态频率响应指标约束,采用Benders分解算法将求解模型分解为主、子问题进行模型迭代求解,完成火电机组与储能电站的调频功率分配。最后以西北某区域电网为算例进行仿真分析,结果表明所提策略较传统策略的调频成本降低了1.39%,验证了所提策略的有效性。To address the frequency stability challenges caused by reduced inertia and insufficient frequency modu⁃lation capacity in power systems with a high proportion of renewable energy,this paper proposes an optimal dispatch and control strategy for thermal power and energy storage,with a focus on dynamic frequency response.First,a dy⁃namic frequency response model is developed for a power system integrated with photovoltaic renewable energy,along with a formula to accurately quantify system-wide frequency fluctuation characteristics.Next,a frequency modulation model is established for a power system that incorporates energy storage.The goal is to optimize opera⁃tional efficiency while considering the system’s operational constraints and dynamic frequency response metrics.Benders decomposition is applied to decompose the problem into a master problem and subproblems,which are solved iteratively to achieve optimal frequency modulation power allocation between thermal power units and energy storage stations.Finally,simulations are conducted using a case study of a regional power grid in Northwest China.Results demonstrates that the proposed strategy reduces frequency modulation costs by 1.39%compared to tradi⁃tional strategies,validating its effectiveness.

关 键 词：新能源渗透率 频率响应 频率调节 调度策略 

分 类 号：TM7[电气工程—电力系统及自动化]