高温超导直流限流器的研究与应用综述

实现快速有效的故障限流是直流系统控制保护的关键技术之一,利用超导特性研制的超导直流限流器具有理想的限流性能,近年来得到广泛研究和持续发展.以超导模块呈现的限流效果为依据,归纳了现有高温超导直流限流器的主要类别和工作原理,阐述了超导材料对超导限流器限流性能和适用性的影响,梳理了超导限流器在直流系统中的接入方案,并结合超导直流限流器、换流器和直流断路器的配合关系,提炼了直流系统对配置超导直流限流器的性能要求,总结了超导直流限流器的演变规律,并指出其未来的应用趋势.

Review on Research and Application of High-temperature Superconducting DC Fault Current Limiter

The realization of fast and effective fault current limitation is one of the control and protection key technologies in DC systems. The DC superconducting fault current limiter (SFCL) developed from superconducting characteristics has ideal current-limiting performance, which has been widely studied and continuously developed in recent years. The main types and operation principles of the existing high-temperature SFCL are summarized based on the current-limiting effect presented by the superconducting module. The influence of superconducting materials on the current-limiting performance and applicability of SFCL is described. The connection scheme of SFCL in DC systems is illustrated. Also, based on the cooperative relationship among DC SFCL, converters and DC circuit breakers, the performance requirements of DC SFCL applied in DC systems are refined. The development pattern of DC SFCL is concluded to indicate the future application trends of DC SFCL.