可再生能源2026，Vol.44Issue(8)：1079-1086,8.
基于ADRC的柔直系统交流侧不对称故障穿越控制
Asymmetric fault ride-through on the AC side of a multi-terminal flexible DC transmission system control methods
摘要
Abstract
When a multi-terminal flexible DC transmission system based on a modular multilevel converter is connected to the grid,If the system fails,it will prevent the normal transmission of power and thus threaten its safety,so how to ensure its continued operation in the event of a system failure has become a hot topic of research today.In this thesis,a control method combining negative sequence current suppression and DC voltage fluctuation suppression is studied for asymmetric faults occurring on the AC side of flexible DC transmission systems.By deriving the AC side expression of the MMC under asymmetric faults,the corresponding negative sequence current controller is designed to achieve the suppression of negative sequence currents.An active disturbance rejection controller has been introduced to control the DC voltage in response to the diametrical pulsations generated by asymmetric faults,Effective suppression of DC voltage fluctuations is achieved by adding the DC voltage diphasic component to the extended state observer of the active disturbance rejection controller.关键词
柔性直流输电系统/故障电流抑制/自抗扰控制/故障穿越Key words
flexible DC transmission system/fault current suppression/ADRC/fault ride-through分类
能源科技引用本文复制引用
朱旭,杨维满,曹杰,韩寅龙,陈维铅..基于ADRC的柔直系统交流侧不对称故障穿越控制[J].可再生能源,2026,44(8):1079-1086,8.基金项目
甘肃省高校教师创新基金项目(2024B-351). （2024B-351）
