电力系统自动化2026，Vol.50Issue(11)：61-72,12.DOI:10.7500/AEPS20250911009
混合多馈入受端系统中MMC与LCC交互振荡特性建模与分析
Modeling and Analysis of Interactive Oscillation Characteristics Between MMC and LCC in Hybrid Multi-infeed Receiving-end System
摘要
Abstract
With the rapid development of voltage source converter based high voltage direct current(VSC-HVDC)transmission technology,receiving-end power grids will gradually present a hybrid multi-infeed scenario incorporating both VSC-HVDC and conventional HVDC transmission.This paper studies the interactive oscillation characteristics between the modular multilevel converter(MMC)and the line commutated converter(LCC)in a hybrid multi-infeed receiving-end system based on the whole-system impedance method.Firstly,based on the harmonic state-space method,the wide-frequency impedance models of the MMC and LCC considering harmonic coupling characteristics are established,respectively,and a whole system impedance model of the receiving-end system is further constructed.Secondly,based on the whole system impedance analysis method,the potential oscillation risks,dominant oscillation nodes,and key influencing factors of the hybrid multi-infeed receiving-end system are studied,and then the source-load partitioning scheme is determined to analyze the interactive oscillation characteristics between MMC and LCC.Finally,the correctness of the theoretical analysis is verified by establishing a time-domain simulation model of an LCC-MMC hybrid dual-infeed receiving-end system.关键词
混合多馈入受端系统/柔性直流输电/振荡/阻抗模型/模块化多电平换流器/电网换相换流器Key words
hybrid multi-infeed receiving-end system/voltage source converter based high voltage direct current(VSC-HVDC)transmission/oscillation/impedance model/modular multilevel converter(MMC)/line commutated converter(LCC)引用本文复制引用
韩兴宇,张梦瑶,吕敬,张啸虎,朱峰,许凌..混合多馈入受端系统中MMC与LCC交互振荡特性建模与分析[J].电力系统自动化,2026,50(11):61-72,12.基金项目
国家电网有限公司华东分部科技项目(52992425001M). This work is supported by East Branch of State Grid Corporation of China(No.52992425001M). （52992425001M）
