电网技术2025，Vol.49Issue(7)：2691-2701,11.DOI:10.13335/j.1000-3673.pst.2024.0659
对端交流故障下构网型柔直换流站暂态特性及故障穿越策略
Transient Characteristics and Fault Crossing Strategy of Grid-forming VSC-HVDC Converter Station Under Opposite Terminal AC Fault
摘要
Abstract
Under the impact of large disturbance,the grid-forming VSC-HVDC interacts with converter stations,converter stations,and AC networks,and it affects the stability of the system.This paper first investigates the grid-forming VSC-HVDC technology based on virtual synchronization and analyzes the dynamic response characteristics of gird-forming converter stations when AC faults occur on the AC side of the other station..Subsequently,addressing the issue of DC-side disturbances arising from AC faults at fixed DC voltage converter stations,a customized grid-forming VSC-HVDC fault ride-through strategy is proposed,tailored to accommodate various operational scenarios.Finally,based on PSModel,a full-electromagnetic transient simulation system with grid-forming VSC-HVDC is constructed to verify the accuracy of theoretical analysis and the effectiveness of fault crossing strategy.关键词
构网型控制/柔性直流/动态特性/故障穿越Key words
grid-forming control/VSC-HVDC/dynamic characteristic/fault crossing strategy分类
信息技术与安全科学引用本文复制引用
张恒悦,郑超,刘文焯,连攀杰..对端交流故障下构网型柔直换流站暂态特性及故障穿越策略[J].电网技术,2025,49(7):2691-2701,11.基金项目
国家电网有限公司总部管理科技项目(5108-202218280A-2-45-XG):"泛在主动支撑型电力电子装备电力系统运行特性与稳定控制".Project Supported by Science and Technology Project of State Grid Corporation of China(5108-202218280A-2-45-XG):"Operation Characteristics and Stability Control of Universal Active Support Power Electronic Equipment Power System". （5108-202218280A-2-45-XG）
