有源超导限流器的工作特性分析  

Analysis on the Operating Performance of Active Superconducting Fault Current Limiters

作　　者：陈磊[1] 唐跃进[1] 石晶[1] 陈楠[1] 任丽[1] 李敬东[1] 程时杰[1] 

机构地区：[1]华中科技大学超导电力科学技术研究与发展中心,湖北武汉430074

出　　处：《稀有金属材料与工程》2008年第A04期226-230,共5页Rare Metal Materials and Engineering

基　　金：国家重点基础研究发展规划项目"973"资助(2004CB217906)

摘　　要：介绍了现有3种有源超导限流器的电路结构和限流原理,在MATLAB中构建了一个单机无穷大系统,分析比较了这3种限流器作用于同步发电机出线端三相短路的工作特性,并以有源超导限流器的大电网高压运行、对电力系统暂态稳定及断路器开断条件的影响为例,讨论了应用中所要注意的问题。The active superconducting fault current limiter （SFCL）, based on power electronics, modern control theory and superconducting technique, can suppress fault current under a certain level effectively and quickly. This paper introduces the circuit structure and operation principle of three existing active SFCLs. A one-machine infinite-bus system model is built by MATLAB. When the output of synchronous generator meets three-phase short circuit, the current-limiting performance of these SFCLs are analyzed. The application of high-voltage power network of active SFCL is discussed, as well as its effects on power system transient stability and the burden of circuit breaker.

关 键 词：有源超导限流器 同步发电机 限流阻抗 

分 类 号：TM471[电气工程—电器] TM26[一般工业技术—材料科学与工程]