面向调峰调频需求的风水火电协调优化调度  

A Coordinated Optimization Scheduling of Wind-hydro-thermal Power System Based on Requirement of Peak Load and Frequency Regulation

作　　者：葛晓琳 金言 夏澍 符杨 GE Xiaolin;JIN Yan;XIA Shu;FU Yang(College of Electrical Engineering,Shanghai University of Electric Power,Yangpu District,Shanghai 200090,China;Shibei Power Supply Branch of State Grid Shanghai Municipal Electric Power Company,Zhabei District,Shanghai 200072,China)

机构地区：[1]上海电力大学电气工程学院,上海市杨浦区200090 [2]国网上海市电力公司市北供电公司,上海市闸北区200072

出　　处：《电网技术》2019年第11期3917-3925,共9页Power System Technology

基　　金：国家自然科学基金项目(51507100);上海市科委项目(18DZ1203200);上海绿色能源并网工程技术研究中心(13DZ2251900)~~

摘　　要：为减少风电接入对系统调峰调频的影响,并促进多种能源的互补优化,基于风电和负荷不确定性引起的调峰调频需求,建立了含梯级水电参与的风水火协调优化调度模型。模型中为更加合理精准地预留调峰调频备用,将备用按时间尺度划分为7类,并运用离散傅里叶变换法(discrete Fourier transform,DFT)和帕塞瓦尔定理量化出7类不同备用的需求。进而为实现风水火多种类型资源在不同时间尺度上的配合,以发电、调峰、调频总成本最小为目标函数,兼顾系统、风电、梯级水电以及火电的多种运行约束,构建了多能源协调优化调度模型,并运用混合整数线性规划法予以求解。最后通过算例分析验证了所提方法和模型的有效性。In order to reduce the impact of wind power integration on system peak load and frequency regulation, and promote complementary optimization of multiple energy sources, based on the requirement of peak load and frequency regulation due to uncertainty of wind power and load, this paper established a coordinated optimization scheduling model of wind-hydro-thermal power system including cascade hydropower stations. In order to set the reserve for peak load and frequency regulation more reasonably and accurately, the reserve in the model was divided into 7 kinds according to time scale, and the demands of above 7 kinds of reserve were quantified using discrete Fourier transform method and Parseval’s theorem. Besides, in order to achieve coordination of various types of resources for wind-hydro-thermal power on different time scales, with minimizing the total cost of power generation, peak load and frequency regulation as objective function, and taking into account various operational constraints of systems, wind power, cascade hydropower and thermal power, a coordinated multi-source optimization scheduling model was designed and solved with mixed integer linear programming. Finally, case studies verified validity of the proposed method and model.

关 键 词：预测误差:备用量化 调峰调频 风水火 协调调度 

分 类 号：TM721[电气工程—电力系统及自动化]