中国电机工程学报2024，Vol.44Issue(4)：1286-1297,中插4,13.DOI:10.13334/j.0258-8013.pcsee.222042
分网接入方式下LCC-HVDC系统运动方程模型及交互振荡模式的阻尼特征(一):扰动传递路径分解
Motion Equation Model and Damping Characteristic of Interactive Oscillation Modes for LCC-HVDC System in Split-connection Mode(Part I):Disturbance Transfer Path Decomposition
摘要
Abstract
Compared to the conventional line commutated converter based high voltage direct current(LCC-HVDC)system,Yongfu HVDC project can operate at full power transmission mode and power distribution transmission mode for the inverter station.However,the interactive oscillation modes of LCC-HVDC system in the split-connection mode and their characteristics are unclear.Aiming at this special operation mode,this paper adopted the modular modeling method to establish the system motion equation model which the interactive coupling paths among different electrical and control loops.On this basis,according to the interactive coupling paths between the rectifier and inverter sides or between the positive and negative poles,three disturbance transfer paths which influence the stability of the system dominant mode were separated,i.e.,the self-stabilizing path of the rectifier side,the self-stabilizing path of the inverter side and the en-stabilizing path of bipolar interaction.Finally,the cases under different working conditions were set to quantitatively evaluate the damping provided by different transfer paths.Also,the motion equation model and the analysis results based on the disturbance transfer paths were verified by simulation,which provided the model basis for the subsequent investigation on the damping characteristics of the interactive oscillation modes of the LCC-HVDC system in the split-connection mode.关键词
电网换相换流器高压直流输电(LCC-HVDC)/分网接入/运动方程模型/模块化建模/扰动传递路径Key words
line commutated converter based high voltage direct current(LCC-HVDC)/split-connection/motion equation model/modular modeling/disturbance transfer path分类
信息技术与安全科学引用本文复制引用
张加卿,郭春义,杨硕..分网接入方式下LCC-HVDC系统运动方程模型及交互振荡模式的阻尼特征(一):扰动传递路径分解[J].中国电机工程学报,2024,44(4):1286-1297,中插4,13.基金项目
国家自然科学基金(52277093). Project Supported by National Natural Science Foundation of China(52277093). （52277093）
