电力系统及其自动化学报2025，Vol.37Issue(4)：139-149,11.DOI:10.19635/j.cnki.csu-epsa.001492
抑制多馈入系统后续换相失败的协调控制策略
Coordinated Control Strategy for Suppressing Subsequent Commutation Failure in Multi-infeed System
摘要
Abstract
To solve the problem of subsequent commutation failure in a multi-infeed LCC-HVDC transmission system caused by improper DC recovery sequence at the fault recovery stage,a coordinated control strategy which can dynam-ically adapt to the changes in system operation mode is proposed.First,based on the global recovery principle for the multi-infeed system,a multi-infeed dynamic recovery sensitivity factor(MIDRSF)is proposed to quantify the recovery strength of each DC subsystem.Second,the multi-infeed model is equivalent to a single-infeed model,and an adaptive DC current control strategy for the multi-infeed system is put forward,which can fully utilize the reactive power reserve of the system.Finally,the recovery rate of each DC current is quantitatively corrected by MIDRSF,so as to realize the ordered recovery of each DC current.A dual-infeed model is built in PSCAD/EMTDC for simulation analysis,and re-sults verify that the proposed coordinated control strategy can effectively improve the recovery performance of the system and suppress the subsequent commutation failure.关键词
多馈入直流输电系统/电压稳定/后续换相失败/动态恢复灵敏因子/协调控制策略Key words
multi-infeed LCC-HVDC transmission system/voltage stability/subsequent commutation failure/dynamic recovery sensitivity factor/coordinated control strategy分类
信息技术与安全科学引用本文复制引用
高毅,赵逸帆,赵学伟,秦海杰..抑制多馈入系统后续换相失败的协调控制策略[J].电力系统及其自动化学报,2025,37(4):139-149,11.基金项目
国网上海市电力公司科技项目(B30911230005). （B30911230005）
