电压补偿型超导限流器对电流保护的影响  

The influence of voltage compensation superconducting fault current limiter on current relay

作　　者：周羽生[1] 胡鑫[1] 施方圆[1] 莫颖斌[1] 唐跃进[2] 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410014 [2]华中科技大学超导电力科学技术研究与发展中心,武汉430074

出　　处：《低温与超导》2011年第10期1-6,66,共7页Cryogenics and Superconductivity

基　　金：国家高技术研究发展计划(863计划)资助项目(2007AA03Z243);湖南省高校创新平台开放基金项目(09K066)

摘　　要：基于电压补偿型超导故障限流器(SFCL)的工作原理,分析了电网故障时由于限流器限流阻抗串入对电流保护的影响。通过重新整定电流保护的动作值,得到了限流器与电流保护配合的解决方法。以一个10kV中性点不接地配电网为例,分别对引入SFCL前后系统三相短路的电流保护进行仿真,验证了该方法的有效性。Based on work theory of voltage compensation superconducting fault current limiter（ SFCL）, the influences of the limiting impedance in series of the SFCL on current relay as power network taking place a fault were analyzed. The solution of SFCL coordinating with current relay was proposed through resetting the action current of the relay. As an example of 10kV isolated neutral distribution network system, the influences of current relay under three - phase short - circuit with SFCL and without SFCL were simulated respectively. The results show the the solution is effective.

关 键 词：电压补偿 超导限流器 电流保护 保护配合 

分 类 号：TM26[一般工业技术—材料科学与工程]