M. Ahmed
Development of a prototype solid state fault current limiting and interrupting device for low voltage distribution networks
Ahmed, M.; Putrus, G.A.; Ran, L.; Penlington, R.
Authors
G.A. Putrus
L. Ran
R. Penlington
Abstract
This paper describes the development of a solid-state Fault Current Limiting and Interrupting Device (FCLID) suitable for low voltage distribution networks. The main components of the FCLID are a bidirectional semiconductor switch that can disrupt the short-circuit current, and a voltage clamping element that helps in controlling the current and absorbing the inductive energy stored in the network during current interruption. Using a hysteresis type control algorithm, the short-circuit current can be constrained according to a pre-defined profile. IGBTs and diodes are used to construct the semiconductor switch. Varistors are used as the voltage clamping element. An effective method is adopted to improve the current sharing between parallel varistors in order to provide the required capability of energy absorption. An overall protection scheme for the FCLID is described. A prototype FCLID for 230 V single-phase, or 400 V three-phase, applications is developed and tested. Analyses and experiments are carried out to define the stresses that the main components in the FCLID are subject to. The results show that the developed prototype is capable of limiting a 3 kA prospective short-circuit current to 120 A for a period of 0.8 s, without exceeding the thermal limits of the chosen switches and varistors.
Citation
Ahmed, M., Putrus, G., Ran, L., & Penlington, R. (2006). Development of a prototype solid state fault current limiting and interrupting device for low voltage distribution networks. IEEE Transactions on Power Delivery, 21(4), 1997-2005. https://doi.org/10.1109/tpwrd.2006.874587
Journal Article Type | Article |
---|---|
Publication Date | 2006 |
Deposit Date | May 27, 2008 |
Publicly Available Date | May 27, 2008 |
Journal | IEEE Transactions on Power Delivery |
Print ISSN | 0885-8977 |
Publisher | Institute of Electrical and Electronics Engineers |
Peer Reviewed | Peer Reviewed |
Volume | 21 |
Issue | 4 |
Pages | 1997-2005 |
DOI | https://doi.org/10.1109/tpwrd.2006.874587 |
Keywords | Current limiter, Fault current, Electrical power distribution, Semiconductor switch, Varistor. |
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