电感式直流限流器研究综述  

Review on Inductive Fault Current Limiters in Direct Current Systems

作　　者：袁佳歆[1] 陈凡[1] 赵晋斌 张云飞 周航[1] 蒋紫薇[1] YUAN Jiaxin;CHEN Fan;ZHAO Jinbin;ZHANG Yunfei;ZHOU Hang;JIANG Ziwei(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;College of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China)

机构地区：[1]武汉大学电气与自动化学院,武汉430072 [2]上海电力大学电气工程学院,上海200090

出　　处：《高电压技术》2021年第5期1595-1605,共11页High Voltage Engineering

基　　金：国家重点研发计划(2017YFB0902904);湖北省自然科学基金杰出青年基金(2020CFA098);湖北省重点研发计划(2020BAB111)。

摘　　要：高压直流系统短路故障电流抑制问题是目前直流系统保护的核心问题之一,电感式直流故障限流器能深度抑制系统短路电流上升速度,是解决短路故障电流问题的有效方法。该文首先分析了直流系统的故障电流特性,提出了限流器性能评价指标。其次,分析了磁通耦合型、饱和铁芯型和固态型3种电感式直流限流器的工作原理、电气特性和最新研究进展。然后,归纳和对比了不同类型电感式直流限流器的电感增益倍数、动态响应时间、耐压/通流能力和成本等性能评价指标,并给出了各自优缺点和适用的直流电压等级。最后,根据未来直流电网的发展趋势,给出了各类限流器亟待解决的关键技术问题,如超导材料的失超一致性问题、饱和铁芯限流器的励磁系统性能问题、固态限流器的多功能化等,为直流限流技术的进一步研究方向做出了展望。The short-circuit fault current suppression in the HVDC system is one of the key problems of DC system protection.Inductive DC fault current limiter(FCL)can constrain the rising speed of short-circuit current,making it a promising method to solve the problem of short-circuit fault current.Firstly,the fault current characteristic of DC system is analyzed,and the performance evaluation index of FCL is proposed.Secondly,the working principle,electrical characteristics and the latest research status of 3 inductive DC FCL types,including flux-coupling type,saturated-core type,and solid state type,are analyzed.Then,the inductance gain factor,dynamic response time,voltage/current capability and costs of different types of FCLs are summarized and compared,and their advantages and disadvantages and applicable DC voltage levels are given.Finally,according to the development trend of the DC power grid in the future,the key technical problems that need to be solved for all kinds of FCLs are given,such as the problem of the quench synchronization of superconducting materials,the excitation system performance of the saturated core FCL,the multi-function of the solid-state FCL,etc.,which makes a prospect for the further research direction of the DC current limiter technology.

关 键 词：直流故障保护 故障限流器 HVDC 磁通耦合限流器 饱和铁芯限流器 固态限流器 

分 类 号：TM471[电气工程—电器]