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Paper on Harmonics
Journal of Pure and Applied Science & Technology

Copyright © 2011 NLSS, Vol. 2(1), Jan 2012, pp. 50-58

Analysis of Fault Current Limiter (FCL) for Voltage Sag Mitigation through MATLAB/SIMULINK
1,

Vibhor Chauhan1,*, Rishi Pratap Singh1 and Seema Dhariwal1 *Department of Electrical Engineering, Suresh Gyan Vihar University, Jaipur, India

Continues growth of electrical energy demand is resulting in a corresponding increase in the short circuit in power system, which results in voltage sag problems and threat to power quality in the system. Several solutions have been implemented, including the use of Fault Current Limiter (FCL), in order to reduce circuit breakers rated capacity and to limit the electromagnetic stress in associated equipment. This paper presents a study of the impact of fault current limiter in power system performance and hence improving the power quality. In order to evaluate the impact of fault current limiter in power system performance, simulation models of power system performance with ‘FCL’ are used. For simulation model development, MATLAB simulation tool “SIMULINK” software is used. A distribution system fed from single source is used to assess the impact of ‘FCL’ to power system performance.
Keywords: Fault Current Limiter (FCL), Voltage Sag, Power Quality, MATLAB/SIMULINK.

1. INTRODUCTION In today circumstances, rapid development of power network cause the fault current of the system increased greatly. The levels of fault current in many places have often exceeded the withstand capacity of existing power system equipment. As implication to this matter; security, stability and reliability of power system will be negatively affected[1]. Thus, limiting the fault current of the power system to a safe level can greatly reduce the risk of failure to the power system equipment due to high fault current flowing through the system. Because of that, there is no surprise to fault current limiting technology has become a hotspot of



References: [1] Fabio, Tosto; “Voltage Sag mitigation on Distribution Utilities”, ETEP- European Transaction on Electric power, Vol. 11(1), pp. 17-21, January/February 2001. [2] “IEEE recommended practice for Monitoring Electric Power Quality”, USA 1995. [3] Eckroad, S.; “Survey of fault Current Limiter technologies”, Electric Power Research Institute, 2005. [4] Firouzi, M.; Gharehpetian, G.B.and Pishvaie, M.; “Proposed New Structure for Fault Current Limiting and Power Quality Improving Function”, International Conference on Renewable Energies and Power Quality, Spain; 23 march to 25 march 2010. [5] Elgerd, O.I.; “Electric energy systems theory-A introduction”, 2nd Ed., McGraw-Hill, New York, 1982. [6] Elsamahy, M., Faried, S.O. and Sidhu, T.S.; “Impact of superconducting Fault Current Limiters on the coordination between Generator distance phase backup protection and generator capability curve”, IEEE Transaction on Power Delivery, Vol. 26(3), July 2011. [7] Chang, C.S. and Loh, P.C.; “Integration of Fault Current Limiters on Power System for Voltage Quality Improvement”, Electric power systems research, Vol 57, 2001. [8] Thasananutariy, T., Chatratana, S. and Megranaghan, M.; “Economic Evaluation of solution alternatives for voltage sag and momentary Interruptions” Electric power quality and utilization, Magazine, Vol. I(2), 2005. [9] John, J.G. and William D.S.; "Power system analysis", New York: McGraw -Hill, 1994. [10] Karagarian and Seifi, A.R.; “A compound compensation using DFACTS And switch based current fault current limiter (SFCL)” The pacific journal of Science and technology, Vol. 11(1), may 2010. [11] Fabio,T. and Stefano, Q.; “Reducing Voltage Sags through Fault Current Limitations”, IEEE Transaction on Power Delivery, Vol. 16(1), January 2001. ISSN : 2249-9970 (Online), 2231-4202 (Print) [58] JPAST, Vol. 2(1), Jan 2012

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