A novel 4-limb earth fault compensation reactor for distribution network

被引：1
|
作者：
Penttonen, Jyrki [1 ,2 ]
Lehtonen, Matti [1 ]
Muhammad, Shafiq [2 ]
机构：
[1] Aalto Univ, Dept Elect Engn, Espoo, Finland
[2] Vensum Ltd, Helsinki, Finland
来源：
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS | 2017年 / 27卷 / 12期
关键词：
distribution network; earth fault compensation; reactor; resonant earthing network; transformers;
D O I：
10.1002/etep.2433
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a novel earth fault compensation solution, which presents high positive sequence impedance and magnetically controllable zero sequence impedance. A 4-limb reactor is introduced to compensate earth fault currents in three-phase power distribution networks without the need of neutral point in substation transformer or separate earthing transformer. This results in considerably lower costs in implementing earth fault current compensation with much faster operation, making it possible to tune for 100% compensation during fault thus improving the probability of arc suppression. The presented reactor is analyzed analytically, and its performance is validated by simulations. The presented solution can significantly improve the reliability of the supply network.
引用
收藏
页数：11
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