Open AccessModeling of transformer type fault current limiter in 22kv distribution power system at Ho Chi Minh City
Author(s) -
Đoàn Tự,
Lê Bửu Toàn,
Lê Thị Tịnh Minh
Publication year - 2020
Publication title -
phát triển khoa học and công nghệ - kỹ thuật and công nghệ
Language(s) - English
Resource type - Journals
ISSN - 2615-9872
DOI - 10.32508/stdjet.v2i3.530
Subject(s) - fault current limiter , transformer , electrical impedance , electrical engineering , short circuit , limiter , fault (geology) , high impedance , engineering , grid , ho chi minh , electric power system , power (physics) , electronic engineering , voltage , mathematics , physics , scale (ratio) , quantum mechanics , seismology , geology , geometry
Nowadays, with consecutive development of the power system, not only the scale of the grid is expanded but also many technical problems exist. One of the most important problems is the exceeding short circuit current in the power grid, this value exceeds out of the regulation’s range as well as breaking capacity of the protection devices. In this paper, a fault current limiter (FCL) device is introduced as a solution; it works as a high impedance in short circuit cases and low impedance in normally case. This paper simulates the fault current limiter transformer type in MATLAB/SIMULINK, the effect of FCLT’s parameters to short circuit reduction is given in the results. Application of FCLT in reality network also is presented with markable results of short circuit reduction in Ho Chi Minh Power Corporation‘s distribution system.