电力建设2025，Vol.46Issue(8)：78-91,14.DOI:10.12204/j.issn.1000-7229.2025.08.008
抑制换相失败的低电压限电流控制研究综述
Review of Research on Voltage Dependent Current Order Limiter for Commutation Failure Mitigation
摘要
Abstract
[Objective]The objective of this study is to systematically sort out the research status of the voltage dependent current order limiter(VDCOL)improvement method to enhance the ability of VDCOL control to commutation failure in high-voltage direct current(HVDC)transmission systems.[Methods]Based on an analysis of the limitations of the traditional VDCOL,the improved control methods of the VDCOL to suppress commutation failure were sorted and analyzed in detail from three aspects:improving the sensitivity of fault response,enhancing the flexibility of current control,and realizing multi-DC cooperative control.[Results]Based on the existing research results,the optimization and improvement of the VDCOL were mainly reflected in the following three aspects.1)The fault response sensitivity improved,and the suppression effect of the first commutation failure significantly enhanced.2)The current command generation mechanism and control strategy improved,effectively improving the system ability to suppress subsequent commutation failures.3)Various VDCOL cooperative control methods for multi-DC systems were designed to improve the commutation failure suppression effect and coordination recovery ability of multi-DC systems.[Conclusions]The start-up strategy considering certain factors is one-sided;a contradiction exists between active and reactive power in current control,and subjectivity exists in multi-DC VDCOL collaborative control.Considering the influence of multiple factors,the start-up strategy,optimal design of the slope of the input-output characteristic curve,and adaptive cooperative control of multi-DC VDCOL are important directions for future research,and the development of an AC/DC hybrid power grid proposes higher technical requirements for the refinement and synergy of VDCOL control.关键词
高压直流输电/低电压限电流(VDCOL)/改进控制策略/换相失败抑制Key words
HVDC transmission system/voltage dependent current order limiter(VDCOL)/improved control strategies/commutation failure suppression分类
信息技术与安全科学引用本文复制引用
朱璇,汤奕,郑晨一,王莹,党杰,崔挺..抑制换相失败的低电压限电流控制研究综述[J].电力建设,2025,46(8):78-91,14.基金项目
国家电网有限公司科技项目(5100-202323008A-1-1-ZN) This work is supported by State Grid Corporation of China Technology Project(No.5100-202323008A-1-1-ZN). （5100-202323008A-1-1-ZN）
