基于相分量法的新型感应滤波变压器端口数学模型  

Port Mathematical Model of Novel Inductive Filter Transformer Based on Phase Component Method

作　　者：陈跃辉 段振锋 付鹏武 周冠东 罗隆福[2] 田野 CHEN Yuehui;DUAN Zhenfeng;FU Pengwu;ZHOU Guandong;LUO Longfu;TIAN Ye(State Grid Hunan Electric Power Co.,Ltd,Changsha 410000,China;School of Electrical and Information Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]国网湖南省电力有限公司,长沙410000 [2]湖南大学电气与信息工程学院,长沙410082

出　　处：《电力系统及其自动化学报》2020年第12期55-61,76,共8页Proceedings of the CSU-EPSA

基　　金：湖南省重点研发计划资助项目(2017GK2240);国网湖南省电力公司科技资助项目(5216K0170002)。

摘　　要：为解决传统工业整流机组因为谐波污染严重带来的变压器绕组振动、噪声大及损耗大等问题,本文研究了一种基于感应滤波技术的新型十二脉波整流变压器。以零阻抗设计为前提、耦合电路为依据,采用相分量法建立了包含端口电气参数间耦合特性的全解耦数学模型及等值电路。通过对中性点经电阻接地及外接滤波装置的特性分析,建立了更为详尽的节点拓展模型与降阶简化模型。最后,通过搭建相关仿真模型及实验平台,验证了本文端口数学模型的正确性,为短路故障电流分布、潮流计算等实际工程应用奠定理论基础。To solve the problems such as vibrations in transformer windings,large noise,and high loss due to serious harmonic pollution in a traditional industrial rectifier,a novel inductive filter rectifier transformer(NIFRT)with 12-pulse based on the inductive filter technology is studied.On the basis of a zero-impedance design and a coupling cir⁃cuit,a full decoupling mathematical model including the coupling characteristics of port electrical parameters and its equivalent circuit are established by using the phase component method.By analyzing the characteristics of the neutral point through resistor grounding as well as the external filtering device,a more detailed node expansion model and a simplified model are also established.Finally,through the establishment of relevant simulation models and an experi⁃mental platform,the proposed port mathematical model was verified,laying a theoretical foundation for practical engi⁃neering applications such as short-circuit fault current distribution and power flow calculation.

关 键 词：感应滤波变压器 端口数学模型 相分量法 耦合电感 

分 类 号：TM72[电气工程—电力系统及自动化]