Design and Optimization of a Solid-State Fault Current Limiter for Improving Stability and Power Quality: A Case Study of Ilam Gas Refinery

Articles in Press

Document Type : Research Paper

Authors

1 Department of Electrical Engineering, Ilam University, Ilam, Iran

2 Shahed University of Tehran, Technical and Engineering Faculty, Department of Electrical Engineering,Tehran

Abstract

This paper investigates the optimal design of a solid-state fault current limiter (SSFCL) for controlling short-circuit currents in industrial power networks. The rapid increase of fault currents in power networks, due to the development of distributed generation sources and the growth of load demand, can cause severe damage to equipment. Therefore, the use of SSFCLs, which have a negligible impact under normal conditions and provide rapid limiting action during faults, has become increasingly important. In this study, a proposed topology based on the use of semiconductor switches (IGBT/SGTO) along with an intelligent control unit has been designed and simulated. Simulations were performed using PSCAD/EMTDC software under various scenarios (connection to the bus, after the transformer, and the presence of distributed generation sources), and the results demonstrate a significant improvement in network stability and a reduction in energy losses. The findings of this study can serve as a basis for improving protection systems in refineries and other energy industries.

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Main Subjects

Journal of Modeling in Engineering

Articles in Press, Accepted Manuscript
Available Online from 14 September 2025

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History

  • Receive Date: 03 March 2025
  • Revise Date: 17 May 2025
  • Accept Date: 24 May 2025

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