考虑区域间频率动态差异及频率响应全过程的分布鲁棒机组组合模型  

Distributionally Robust Unit Commitment Model Considering Regional Frequency Dynamic Differences and Whole Frequency Response Process

作　　者：江一航 赵书强 韦子瑜 孙舒婷 李志伟 JIANG Yihang;ZHAO Shuqiang;WEI Ziyu;SUN Shuting;LI Zhiwei(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University),Changping District,Beijing 102206,China)

机构地区：[1]新能源电力系统全国重点实验室(华北电力大学),北京市昌平区102206

出　　处：《中国电机工程学报》2025年第9期3380-3394,I0009,共16页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(52307098)。

摘　　要：双碳愿景下,大规模可再生能源集中式并网对电力系统频率安全提出新的挑战,传统调度模式难以满足新型电力系统安全运行需求。为此,该文提出一种考虑区域间频率动态差异及频率响应全过程的机组组合模型。首先,基于惯性控制与功率备用控制,提出一种面向调度模型的风光频率响应特性建模方法;同时,考虑调频资源分布差异导致的区域间频率动态差异,完整推导系统惯性响应、一次调频及二次调频全过程中各关键指标的线性化解析表达式;最后,采用数据驱动分布鲁棒优化刻画风光出力不确定性,将频率动态约束嵌入机组组合模型,构建考虑区域间频率动态差异及频率响应全过程的分布鲁棒机组组合模型,基于改进的列和约束生成算法对模型进行求解。算例分析表明,所提模型能充分体现新能源机组的频率响应特性,保障强不确定环境下的多区域互联系统频率安全稳定。With the call of“double carbon”goals,the large-scale integration of renewable energy sources(RESs)poses a series of challenges to the frequency security of the power system,traditional scheduling methods are unable to meet the security requirements of novel power system.In this paper,a novel unit commitment(UC)model considering regional frequency dynamic differences and whole frequency response process is proposed.Firstly,a modeling approach based on virtual inertia control and power reserve control is proposed to describe the frequency response characteristics of wind turbines(WTs)and photovoltaics(PVs)within the scheduling framework.Additionally,recognizing the regional discrepancies in frequency dynamics resulting from variations in regulation resources distribution,this paper comprehensively derives linearized expressions for key indicators during the frequency events.Finally,the uncertainties produced by WTs and PVs are captured through data-driven distributionally robust optimization(DDRO)and the frequency dynamics constraints are incorporated into the UC model.The DDRO-based UC model that takes into account the regional frequency dynamic differences and the whole frequency response process is established.A modified column and constraint generation method is applied to solve the proposed model.Case studies indicate that the proposed model can adequately describe the frequency response characteristics of RESs and ensure the frequency security of multi-region interconnected power system under uncertainty.

关 键 词：风光主动频率支撑 区域间频率动态差异 频率响应全过程 数据驱动 分布鲁棒优化 

分 类 号：TM73[电气工程—电力系统及自动化]