非线性变压器理论在高压直流故障电流限制器中的应用研究  

Application of Nonlinear Transformer Theory in HVDC Fault Current Limiter

作　　者：谢飞[1,2] 屈鲁 金环 XIE Fei;QU Lu;JIN Huan(Department of Intelligent Manufacturing,Shunde Polytechnic,Guangdong Foshan 528300,China;School of Automation Science and Engineering,South China University of Technology,Guangzhou 510640,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]顺德职业技术学院智能制造学院,广东佛山528300 [2]华南理工大学自动化学院,广州510640 [3]清华大学电机工程与应用电子技术系,北京100084 [4]中国科学院等离子体物理研究所,合肥230031

出　　处：《高压电器》2019年第9期57-63,共7页High Voltage Apparatus

基　　金：国家磁约束聚变工程专项(2010GB108003);中国科学院合肥物质科学研究院院长基金专项(YZJJ2018QN11);广东省自然科学基金专项(2017A030310640);广东省数字化工厂工程技术研究中心专项(2018-KJZX014)~~

摘　　要：高压直流故障电流限制器(fault current limiter,FCL)是先进超导托卡马克装置系统中用于抑制短路电流,保护中性束注入系统的一种类变压器装置。文中从变压器铁心叠片的涡流损耗特性出发,采用分段线性插值的方法对FCL非线性磁滞回线模型进行优化,推导出非线性激磁电阻与电感的并联模型。通过仿真及实验的对比分析,结果表明优化磁滞回线模型仿真波形与试验结果吻合度高,短路电流抑制效果良好。Fault current limiter(FCL)is a sort of quasi-transformer that inhibits short-circuit current and protect neutral beam injector in the system of the experimental advanced superconducting TOKAMAK(EAST).Starting from the eddy-current loss properties of transformer core disk,this paper adopted the piecewise linear interpolation method to optimize the HVDC FCL non-linear hysteresis loop and derive a nonlinear exciting resistance-inductance parallel model.A comparative analysis of simulation and experimental results indicates the optimized hysteresis loop model’s simulation waveform fits well with the experimental results,and short-circuit current suppression effect is good.

关 键 词：先进实验超导托卡马克 故障电流限制器 平行四边形磁滞模型 铁心叠片 变压器非线性模型 

分 类 号：TM471[电气工程—电器] TM41