Open AccessFault location in low‐voltage direct current network based on auxiliary injection unit
Author(s) -
Jiang Shan,
Fan Chunju,
Huang Ning
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2019.0093
Subject(s) - robustness (evolution) , fault coverage , fault indicator , fault (geology) , voltage , computer science , reliability engineering , stuck at fault , grid , reliability (semiconductor) , engineering , real time computing , electronic engineering , control theory (sociology) , fault detection and isolation , electrical engineering , mathematics , electronic circuit , artificial intelligence , biochemistry , chemistry , power (physics) , geometry , physics , control (management) , quantum mechanics , seismology , geology , actuator , gene
Fault location plays an important role in accelerating fault clearance and grid recovery, which greatly improves the reliability and robustness of low‐voltage direct current distribution network. A fault location method based on auxiliary injection unit (AIU) is proposed in this study with respect to its basic structure and principle. With single terminal information, the proposed method allows low requirement of sampling frequency and enhances the tolerance to fault resistance by utilising the characteristic of AIU. Furthermore, design criteria of components in AIU are discussed in detail. Optimised parameters contribute to better performance in estimating fault distance. Numerous simulations demonstrate that the proposed method can realise accurate fault location with fault distance and fault resistance varying in a wide range.