NDLI: Thyristor based bridge-type fault current limiter for fault current limiting capability enhancement

Content Provider	IET Digital Library
Author	Ghanbari, Teymoor Farjah, Ebrahim Tashakor, Nima
Abstract	This study deals with a developed thyristor based bridge-type fault current limiter (TBFCL), in which the main fault current limiting function is relegated to a limiting circuit controlled by a silicon controlled rectifier (SCR). Since SCR is a reliable power electronic switch and can be found in high ratings, the proposed TBFCL can be utilised in higher ratings in comparison with other proposed BFCLs. The TBFCL limits fault current in two steps; (i) by a fully controlled DC reactor during transient fault interval (ii) by a SCR based current limiting circuit during steady state fault interval. The TBFCL has a bridge-type DC reactor controlled by an isolated gate bipolar transistor and a current limiting circuit in parallel with the bridge controlled by a thyristor. Upon fault occurrence, the DC reactor limits increasing rate of the fault current, while the generated over voltage activates auto-triggering control circuit of the SCRs. Therefore, the fault current is limited through the SCR current limiting path and the DC reactor path is interrupted. Analysis of the proposed TBFCL is presented in detail. Simulation and experimental results verify the performance of the TBFCL.
Starting Page	2202
Ending Page	2215
Page Count	14
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 9, Jun (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2015.1364
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-06-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Autotriggering Control Circuit Bipolar Transistor Bridge Circuit Current Limiting Reactors Fault Current Limiters Fault Current Limiting Capability Enhancement Fully Controlled DC Reactor Isolated Gate Bipolar Transistor Limiting Circuit Control Power Electronic Switch Power Electronics Power Supply Protection Apparatus SCR Based Current Limiting Circuit Silicon Controlled Rectifier Steady State Fault Interval Supervisory Circuit TBFCL Thyristor Based Bridge-type Fault Current Limiter Thyristors Transient Fault Interval
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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