摘要
在能源互联网背景下,传统有功平衡调节产品难以满足新型电力系统对可靠性、灵活性及低碳性的要求。为解决国内调节产品设置单一且难以应对发电波动性增加的问题,提出了平衡需求的概念,并基于信号时频域分析方法设计有功平衡服务产品体系。该方法先通过K⁃shape聚类识别典型日平衡需求,结合集合经验模态分解对调节信号进行多级划分,再通过时频域分析进行产品标准化设计。以调频和备用产品为例,进行定量分析,验证了该方法的有效性。结果表明,该产品体系设计方法有助于实现资源的最优配置,降低市场成本。为各区域电力系统进行调节能力的层级划分,确定产品数目及响应时间要求,设计符合地区实际情况的有功平衡服务产品体系提供指导。
In the context of the energy internet,traditional active power balance regulation products fail to meet the reliability,flexibility,and low-carbon demands of new power systems.To address the problems that domestic regulation products are single in configuration and ill-equipped to handle the increasing volatility of generation,the concept of balance demand is introduced,and an active power balance service product system based on signal timefrequency domain analysis is proposed.The method uses K-shape clustering to identify typical daily balance demands,applies ensemble empirical mode decomposition(EEMD)for multi-level decomposition of regulation signals,and standardizes product design through time-frequency domain analysis.Quantitative analysis is conducted using frequency regulation and reserve products as examples to demonstrate the effectiveness of the proposed method.The results show that this product system design approach facilitates optimal allocation of regulation resources and reduces market costs.Guidance is provided for the hierarchical classification of regulation capacity in regional power systems,the determination of product numbers and response time requirements,and the design of active power balance service product systems tailored to regional conditions.
作者
殷柯奕
季天瑶
张超
邹鹏
何希然
荆朝霞
崔校瑞
李瑞
YIN Keyi;JI Tianyao;ZHANG Chao;ZOU Peng;HE Xiran;JING Zhaoxia;CUI Xiaorui;LI Rui(School of Electric Power Engineering,South China University of Technology,Guangzhou 510641,China;State Grid Shanxi Electric Power Company,Taiyuan 030021,China;Electric Power Research Institute,State Grid Shanxi Electric Power Company,Taiyuan 030001,China)
出处
《电力科学与技术学报》
北大核心
2025年第6期290-304,共15页
Journal of Electric Power Science And Technology
基金
国网山西省电力公司科技项目(52053023000A)。
关键词
辅助服务
有功平衡
产品体系
信号分解
ancillary service
active power balance
product system
signal decomposition
