Study of the Current Limiting Device Based on Principle of Forced Current Zero
- DOI
- 10.2991/isrme-15.2015.223How to use a DOI?
- Keywords
- Current Limiting Device; Counter Pulse Circuit; Current Commutation; High Speed Switch (HSS); Control strategy
- Abstract
With the development trend and rapid increase of the power grid capacity, short-circuit current level is increasing rapidly. How to make sure the steady and reliable operation of the power system is a big challenge. So it is of great importance to limit the short-circuit current effectively. A new kind of current limiting device based on current commutation is proposed in this paper, it consists of a high speed switch[1], counter pulse circuit and a limiting resistor. The function of a high speed switch is to open the fault current fast. The high speed switch can open the current at the forced current zero after a superposition of the counter pulse circuit. Then the current is commuted to a limiting resistor, the current limiting process is completed. According to the short-circuit current phase detection, the sequences coordination of the high speed switch and the counter pulse circuit, and the phase rule of three-phase short-circuit current, the control strategy at any phase of the three-phase short-circuit current is presented here. A circuit simulation is established by the Simulink tool box of Matlab. A lower current limiting experimental prototype is designed.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Qiang Li AU - Yu Tian AU - Weipeng Liang AU - Enyuan Dong AU - Jiyan Zou PY - 2015/04 DA - 2015/04 TI - Study of the Current Limiting Device Based on Principle of Forced Current Zero BT - Proceedings of the 2015 International Conference on Intelligent Systems Research and Mechatronics Engineering PB - Atlantis Press SP - 1067 EP - 1072 SN - 1951-6851 UR - https://doi.org/10.2991/isrme-15.2015.223 DO - 10.2991/isrme-15.2015.223 ID - Li2015/04 ER -