防护直流换相失败的新型换流技术综述与展望  

Research Review and Prospect on New Commutation Technology to Prevent Direct Current Commutation Failure

作　　者：许超群 余占清[2] 董昱 葛睿 屈鲁 赵彪[2] 曾嵘[2] XU Chaoqun;YU Zhanqing;DONG Yu;GE Rui;QU Lu;ZHAO Biao;ZENG Rong(National Power Dispatching and Control Center,State Grid Corporation of China,Xicheng District,Beijing 100031,China;Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing 100084,China)

机构地区：[1]国家电网国家电力调度控制中心,北京市西城区100031 [2]清华大学电机工程与应用电子技术系,北京市海淀区100084

出　　处：《电网技术》2025年第4期1500-1512,共13页Power System Technology

基　　金：国家自然科学基金联合基金集成项目(U216660001);国家自然科学基金青年基金(52407211)。

摘　　要：换相失败是影响高压直流多落点电网安全稳定运行的重要因素,提升高压直流输电的换相失败防护能力意义重大。为聚焦换相失败防护问题,抵御换相失败发生,减小换相失败对系统的不良影响,对高压直流输电换相失败防护的新型直流换流技术进行了总结归纳。基于换相失败物理机理,从器件特性改良、换流拓扑改进、直流控制优化3个层面总结分析换流技术研究,并开展新型换流技术和其他现有防护技术的优劣势综合全面分析。最后,综合近年来换相失败研究成果指明了未来换流技术研究的发展方向,旨在攻克影响高压直流输电工程安全可靠运行的关键技术难题。Commutation failure is an important factor affecting the safe and stable operation of the high voltage direct current(HVDC)multi-in-feed power grid.It is significant to improve the ability to prevent commutation failure in HVDC transmission systems.To mitigate commutation failure and reduce the negative impact of commutation failure in the system,this paper summarizes the research on new DC commutation technology for the prevention of HVDC commutation failure.Based on the physical mechanism of commutation failure,this paper summarizes and presents the commutation technologies from three levels:device characteristics improvement,commutation topology reform,and direct current control system optimization,and comprehensively analyzes the advantages and disadvantages of new commutation technology and other existing prevention technologies.Finally,based on the research review of results of commutation failure in recent years,the research and development of commutation technology in the future is pointed out to overcome the key technical problem affecting the safe and reliable operation of HVDC engineering projects.

关 键 词：高压直流输电 换相失败 防护 换流技术 IGCT 

分 类 号：TM721[电气工程—电力系统及自动化]