一种新的六相输电系统故障分析方法New Fault Analysis Method for Six-phase Transmission System
王明佳,张艳霞
摘要(Abstract):
针对循环换位的六相系统特点,提出了一种新的六相故障分析方法。该方法首先将六相系统分成两组,直接进行对称分量变换;对变换后相互耦合的序量再进行解耦,进而形成相互独立的六个序分量。文中给出了各序网络的构成方式和同一序中各相电流电压之间的相位关系;给出了复合序网的制订方法。仿真计算结果表明,这种新的故障分析方法是正确有效的,能方便地判断出是否发生了跨线故障,有利于故障选相和继电保护的实现。
关键词(KeyWords): 六相输电系统;故障分析;复合序网;跨线故障;故障特征
基金项目(Foundation):
作者(Author): 王明佳,张艳霞
参考文献(References):
- [1]Landers T L,Richeda R J,Krizauskas E,et al.High phaseorder economics:Constructing a new transmission line[J].IEEE Trans on Power Delivery,1998,13(4):1521-1526.
- [2]Brown M T,Rebbapragada R V,Dorazio T F,et al.Utilitysystem demonstration of six phase power transmission[C]//IEEE Power Engineering Society Transmission and Distri-bution Conference,Dallas,USA,1991:983-990.
- [3]Apostolov A P,Raffensperger R G.Relay protection opera-tion for faults on Nyseg’s six-phase transmission line[J].IEEE Trans on Power Delivery,1996,11(1):191-196.
- [4]Stewart J R,Oppel L J,Richeda R J.Corona and field ef-fects experience on an operating utility six-phase transmis-sion line[J].IEEE Trans on Power Delivery,1998,13(4):1363-1369.
- [5]赵庆明,贺家李,牟敦庚,等(Zhao Qingming,He Jiali,Mu Dungeng,et al).特高压六相输电线路特性研究(Study on UHV six-phase transmission lines characteris-tics)[J].中国电力(Electric Power),2007,40(8):40-44.
- [6]赵庆明,贺家里,李永丽,等(Zhao Qingming,He Jiali,LiYongli,et al).六相输电线路的故障选相(Fault phaseselection for six-phase transmission lines)[J].天津大学学报(Journal of Tianjin University),2007,40(6):704-709.
- [7]Venkata S S,Guyker W C,Bhatt N B,et al.Six-phase(multi-phase)power transmission systems:Fault analysis[J].IEEE Trans on Power Apparatus and Systems,1977,96(3):758-767.
- [8]Portela C M,Tavares M C.Six-phase transmission line-propagation characteristics and new three-phase represen-tation[J].IEEE Trans on Power Delivery,1993,8(3):1470-1483.
- [9]刘恩德(Liu Ende).六相输电系统故障分析方法(Anew method for fault analysis of six-phase transmissionsystems)[J].国际电力(International Electric Power forChina),2001(4):36-39.
- [10]张艳霞,王艳,伍仕,等(Zhang Yanxia,Wang Yan,WuShi,et al).基于六序分量法的六相输电系统故障选相(Phase-selection for six-phase power transmission systembased on six-sequence components method)[J].电力系统自动化(Automation of Electric Power Systems),2009,33(24):49-53.
- [11]王艳,周丹,焦彦军,等(Wang Yan,Zhou Dan,Jiao Yan-jun,et al).基于相关系数分析的六相输电线路故障选相(Fault phase selection for six-phase transmission linesbased on correlation coefficient analysis)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2011,23(6):41-44,56.
- [12]张艳霞,张宏远,孙莹(Zhang Yanxia,Zhang Hongyuan,Sun Ying).六相输电系统的故障暂态分析(Fault tran-sient analysis of six-phase power transmission system)[J].电力系统及其自动化学报(Proceedings of the CSU-EP-SA),2015,27(4):49-54.