Open AccessFASD based on BSC method for distribution networks
Author(s) -
Zheng ZeYin,
Guo MouFa,
Yang NienChe,
Jin Tao
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.2019.1236
Subject(s) - fault (geology) , electromagnetic coil , compensation (psychology) , current (fluid) , backstepping , arc suppression , electronic engineering , residual , ground , engineering , computer science , control theory (sociology) , topology (electrical circuits) , electrical engineering , control (management) , artificial intelligence , algorithm , power (physics) , adaptive control , electric power system , physics , psychology , quantum mechanics , seismology , geology , psychoanalysis
A Petersen coil was used as a passive arc‐suppression device (ASD) to mitigate ground‐fault current when a single‐phase‐to‐ground fault occurred in distribution networks. However, passive ASDs cannot compensate for the active and harmonic components of ground‐fault current. Furthermore, a massive residual ground‐fault current would endanger human life and the reliable operation of distribution networks. To overcome the shortcomings of passive ASDs, a three‐phase flexible ASD (FASD) with a three‐phase cascaded H‐bridge topology was presented. A three‐phase FASD connected to a bus bar of distribution networks was employed to compensate for the ground‐fault current. In this study, the FASD with the backstepping control (BSC) based on current‐compensation principle was proposed to completely eliminate the ground‐fault current. The effectiveness of the proposed FASD with the BSC method was verified using the simulation and experimental results.