电网技术2026，Vol.50Issue(3)：1234-1244,中插99-中插102,15.DOI:10.13335/j.1000-3673.pst.2025.0723
含光伏接入的双端交直流混合配电系统稳定性及交互作用分析
Analysis of the Stability and Interaction of Dual-terminal AC/DC Hybrid Distribution System With PV Integration
摘要
Abstract
The AC/DC hybrid power distribution system is an important form of future power distribution systems.The dynamic interaction between the AC and DC systems restricts its stable operation.This paper examines the impact of power electronic device interactions on the stability of AC and DC power distribution systems.By constructing a model of the AC/DC hybrid power distribution system with photovoltaic grid connection,the interactions between the photovoltaic grid connection on the AC and DC sides and their influence on system stability are analyzed.Firstly,a small-signal model of the AC/DC hybrid system with AC and DC photovoltaic grid connection was established.Then,the mechanism of the dynamic interaction between the AC and DC sides of the photovoltaic grid connection was qualitatively analyzed.Considering the different power flow directions,the amplitude-frequency characteristics of the mutual influence components and the trajectory of the dominant mode change in the system under different system parameters were studied to analyze the interaction's influence on system stability.The results show that the transmission of the interaction between the AC and DC sides is affected by parameters such as the control of the interconnection converter,and that changes in power flow direction alter its transmission characteristics.Finally,the correctness of the analysis results was verified through simulation analysis.关键词
交直流混合配电系统/振荡/小信号稳定性/交互作用/光伏Key words
AC/DC hybrid power distribution system/oscillation/small-signal stability/interaction/photovoltaic分类
信息技术与安全科学引用本文复制引用
葛津铭,董育玮,张明泽,王振浩,王朝斌,尹瑜,王尉,翟俊龙..含光伏接入的双端交直流混合配电系统稳定性及交互作用分析[J].电网技术,2026,50(3):1234-1244,中插99-中插102,15.基金项目
吉林省自然科学基金项目(YDZJ202401582ZYTS).Project Supported by Natural Science Foundation of Jilin Province(YDZJ202401582ZYTS). （YDZJ202401582ZYTS）
