采用高耦合度分裂电抗器的并联型断路器均流过程研究  

Current Dividing Process of Paralleled Circuit Breakers with High Coupled Split Reactor

作　　者：袁召[1] 尹小根[1] 潘垣[1] 何俊佳[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074

出　　处：《高电压技术》2012年第8期2008-2014,共7页High Voltage Engineering

基　　金：国家"十一五"科技支撑计划(2009BAA19B00)~~

摘　　要：为了研究基于高耦合度分裂电抗器(high coupled split reactor,HCSR)的并联型断路器的并联均流效果,推导了简单并联及基于HCSR的并联型断路器并联支路间不平衡电流的表达式,通过分析得出结论:HCSR单臂限流电感、双臂间耦合度、选用的断路器弧阻大小等因素是影响并联型断路器均流效果的主要因素。为验证上述结论,建立了HCSR、真空灭弧室、SF6灭弧室的电路仿真模型,开展了相关仿真分析,并采用合成回路进行了对应断路器并联开断实验。仿真、实验结果与理论分析结果相符合。基于上述研究结果,最终给出了针对不同类型并联断路器的HCSR单臂电感的选取原则,以用于指导新型并联断路器的设计。Focussing on the current sharing process of the paralleled circuit breakers with a high coupled split reactor（HCSR）,we put forward the expressions of imbalance current of simply paralleled circuit breakers and the paralleled circuit breakers with HCSR.Conclusions could be drawn that the current limiting reactor and coupling coefficient of HCSR and the arc resistance of the circuit breakers were main factors that affected the current sharing results.In order to prove the onclusions above,the simulation models of HCSR and vacuum/SF6circuit breakers were established to simulate the current sharing of paralleled circuit breakers,and a synthetic circuit test of paralleled circuit breakers was also conducted.The simulation and test results are consistent with the analysis conclusions.The research results give a principle to choose the parameters of HCSR under different types of circuit breakers,and can be used to guide the design of paralleled circuit breakers with HCSR.

关 键 词：断路器并联 高耦合度分裂电抗器 均流 电弧电阻 限流电感 耦合系数 

分 类 号：TM561[电气工程—电器]