电气传动2026，Vol.56Issue(9)：35-45,11.DOI:10.19457/j.1001-2095.dqcd26878
机电扰动传播特性的电力系统边界划分频率响应建模
Frequency Response Modeling for Power System Boundary Division Considering Electromechanical Disturbance Propagation Characteristics
摘要
Abstract
With the continuous development of China's power industry and the rapid increase in the penetration rate of new energy,while meeting the daily load demand,the scale of the power grid has gradually expanded,making it very difficult to construct a complete frequency response model of complex power systems.Aiming at the problem that the excessive parameters in complex power grids make it difficult to establish a system equivalent frequency response model,a system boundary division method based on the propagation characteristics of electromechanical disturbances was proposed.The propagation characteristics of electromechanical disturbances were analyzed in the continuum model.Starting from the critical frequency threshold of electromechanical disturbance propagation and the response time of generators,hierarchical clustering was performed on the composite electromechanical distances of generators affected by disturbances to determine the degree of close connection between different generators,and a boundary division method for complex power grids was determined to simplify the complexity and calculation scale of system frequency response(SPR)analysis.Finally,taking the IEEE 10-machine 39-bus system as a calculation example,three different typical disturbances were set in Matlab/Simulink simulations to verify the effectiveness and adaptability of the proposed system boundary division method under different disturbance scenarios.关键词
机电扰动/动态等值/系统边界划分/层次聚类/参数聚合/系统频率响应Key words
electromechanical disturbance/dynamic equivalence/system boundary division/hierarchical clustering/parameter aggregation/system frequency response(SFR)分类
信息技术与安全科学引用本文复制引用
李世春,李卓霖,石明达,刘浩斌,衷传州,刘颂凯..机电扰动传播特性的电力系统边界划分频率响应建模[J].电气传动,2026,56(9):35-45,11.基金项目
国家自然科学基金(52407118) （52407118）
