新型直流输电系统中感应滤波技术的影响  

Impacts of Inductive Filtering Technology in the Novel DC Transmission System

作　　者：吴素平[1] 尚荣艳[2] 罗隆福[3] 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410015 [2]华侨大学信息科学与工程学院,厦门361021 [3]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》2010年第4期49-55,共7页Proceedings of the CSU-EPSA

基　　金：湖南省"十一五"重大科技专项项目(06GK1003-1)

摘　　要：新型直流输电系统中感应滤波技术解决了传统直流输电系统只能在网侧滤波的问题,势必对直流输电系统产生重大影响,为此进行了详细研究。简要介绍了直流输电系统换流站的接线方案及感应滤波技术的机理。并在此基础上理论分析得到,新型直流输电系统相对于传统直流输电系统,进入换流变压器网侧绕组的谐波大大减小,换流变压器的振动速度大幅下降,换相角大幅减小。最后,实验验证了理论分析的正确性,表明新型系统具有全面取代传统系统的可能性。The problem that the traditional DC transmission system can only suppress harmonics at net-side of the converter transformer is solved by the inductive filtering technology in the novel DC transmission system,which improves the DC transmission system.The paper firstly introduces the connection schemes of converter in the DC transmission system and the principle of inductive filtering technology.A theorectical analysis shows that,comparing with the traditional DC transmission system,the novel system can reduce more harmonics that enter the net-side windings of the conveerter transfrmer.The vibration velocity of the converter transformer drops,and the commutation angle reduces greatly.Finally,experimental results demonstrate the theoretical analysis.A conclusion has been drawn that the novel system is possible to replace the traditional DC transmission system completely.

关 键 词：新型换流变压器 感应滤波技术 直流输电 换相失败 减振 

分 类 号：TM464[电气工程—电器]