数字继电保护及自动化信号的自适应结构研究  

Research on Adaptive Structure of Digital Relay Protection and Automation Signal

作　　者：郭春生 王婷婷 杨禛 肖旭文 Guo Chunsheng;Wang Tingting;Yang Zhen;Xiao Xuwen(Nanyang Power Supply Co.,State Grid Henan Electric Power Co.,Nanyang 473000,China)

机构地区：[1]国网河南省电力公司南阳供电公司,南阳473000

出　　处：《办公自动化》2025年第6期13-15,共3页Office Informatization

摘　　要：文章给出电气系统电流模式信号阶数与结构模型有效阶数之间的关系,提出电气系统周期和瞬态信号的优化结构模型,以及便于在数字继电保护系统中实现的混合模型,开发在高采样率下识别和分解瞬态信号的方法。根据电网中实际故障信号的结构分析结果表明,在高采样率的信号处理情况下,提高自适应结构模型分辨率的最佳方法是在模型中进行采样抽取。This paper examines the relationship between the order of current mode signals in electrical systems and the effective order of structural models.It proposes optimized structural models for periodic and transient signals in electrical systems,along with a hybrid model designed for easy implementation in digital relay protection systems.Additionally,it develops methods for identifying and decomposing transient signals at high sampling rates.Structural analysis of actual fault signals in the power grid indicates that the most effective way to enhance the resolution of adaptive structural models during high sampling rate signal processing is through sample extraction within the model.

关 键 词：数字继电保护 自动化信号 自适应结构 瞬态信号 

分 类 号：TM762[电气工程—电力系统及自动化]