电力系统及其自动化学报2025，Vol.37Issue(4)：129-138,10.DOI:10.19635/j.cnki.csu-epsa.001437
应用附加元素定理的直流配电系统稳定性分析方法
Stability Analysis Method for DC Distribution System Using Additional Element Theorem
摘要
Abstract
To solve the problem of system stability caused by the characteristics of a DC distribution system such as flex-ible topology and high random fluctuation of power electronic sourcesand loads,the impact on the stability of the DC distribution system caused by constant-power loads connected to DC buses through lines is studied in this paper.First,amedium-voltage DC distribution system is modeled,and the principles and methods of state feedback control are dis-cussed.Then,the possible oscillations caused by the longitudinal parameters of the line in the system are further ana-lyzed according to the additional element theorem,and an oscillation suppression scheme based on the state feedback control and PI control is proposed.Finally,the corresponding circuit model is constructed usingthe simulation software-PLECS,and results prove the effectiveness of the proposed control method.关键词
直流配电系统/附加元素定理/控制策略/稳定分析方法Key words
DC distribution system/additional element theorem/control strategy/stability analysis method分类
动力与电气工程引用本文复制引用
张辉,凌孺,朱刘柱,王绪利,程啸..应用附加元素定理的直流配电系统稳定性分析方法[J].电力系统及其自动化学报,2025,37(4):129-138,10.基金项目
国网安徽省电力有限公司经济技术研究院科技项目(SGAHJY00GHJS2200052). （SGAHJY00GHJS2200052）
