电网技术2025，Vol.49Issue(7)：2959-2967,中插80-中插82,12.DOI:10.13335/j.1000-3673.pst.2024.0773
低压直流配电系统中源侧变流器具有宽频特性的相位补偿方法
Phase Compensation Method of Source-side Converter With Broadband Characteristic in Low-voltage Multi-terminal DC Distribution System
摘要
Abstract
Aiming at the problem that the interaction between the source-side converter and the load-side converter easily causes system oscillation and system instability in the DC distribution system,this paper designs a phase compensation control link for the source-side converter in the master-slave control mode.Firstly,the impedance models of the source and load subsystems of the DC power distribution system are established,and the negative damping characteristics of the output impedance of the source converter are analyzed as an important cause of system oscillation.Then,the corresponding compensation control link is designed to realize the phase compensation of the output impedance of the source side converter.The compensated impedance is positively damped in the whole frequency band,and the phase difference of the impedance intersection is reduced,thus improving the system's stability.The introduced compensation link is further reduced and simplified to facilitate practical engineering application.Finally,the effectiveness of the designed compensation link is verified by simulation and hardware-in-the-loop experiments.关键词
直流配电系统/电压源型变流器/相位补偿/稳定性分析Key words
DC distribution system/voltage source converter/phase compensation/stability analysis分类
信息技术与安全科学引用本文复制引用
唐欣,张睿宁,屈贝,李珍..低压直流配电系统中源侧变流器具有宽频特性的相位补偿方法[J].电网技术,2025,49(7):2959-2967,中插80-中插82,12.基金项目
国家自然科学基金项目(52377167).Project Supported by National Natural Science Foundation of China(52377167). （52377167）
