电力工程技术2024，Vol.43Issue(4)：235-244,10.DOI:10.12158/j.2096-3203.2024.04.025
一种抑制后续换相失败的电流偏差控制参数整定方法
A current deviation control parameter tuning method to suppress subsequent commutation failure
摘要
Abstract
If a subsequent commutation failure occurs in the line commutated converter-based high voltage direct current(LCC-HVDC)transmission system,it will have a seriously negative impact on the safe and stable operation of the AC-DC hybrid power grid.Aiming at the problem of commutation failure during the current deviation control stage in the fault recovery process of the LCC-HVDC system,the relationship between current deviation control parameter and commutation failure is analyzed theoretically.It is found that to avoid commutation failure at this stage,the DC voltage and AC commutation voltage at the inverter side of the LCC need to meet certain constraints.These constraints are directly affected by the current deviation control parameter.Based on the theoretical analysis results,a current deviation control parameter tuning method is proposed,which can improve the control requirements for DC voltage recovery speed and degree during the fault recovery process of the system.The method makes it easier for the system to meet the stable operation constraints between DC voltage and AC commutation voltage,thereby reducing the probability of subsequent commutation failure.Finally,the CIGRE standard test model in the PSCAD/EMTDC simulation platform is used to verify the correctness of the theoretical analysis and the effectiveness of the parameter tuning method.关键词
高压直流输电/故障恢复过程/后续换相失败/抑制措施/电流偏差控制/CIGRE标准测试模型Key words
high voltage direct current/fault recovery process/subsequent commutation failure/suppression measures/current deviation control/CIGRE standard test model分类
信息技术与安全科学引用本文复制引用
李娟,朱龙臻,俎立峰,王先为,杨美娟..一种抑制后续换相失败的电流偏差控制参数整定方法[J].电力工程技术,2024,43(4):235-244,10.基金项目
国家重点研发计划资助项目(2021YFB2400603) （2021YFB2400603）
