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Voltage Sag Mitigation Effect Considering Failure Probability According to the Types of SFCL

Author

Listed:
  • Joong-Woo Shin

    (Korean Electrotechnology Research Institute, Gwangju Metropolitan City 61751, Republic of Korea)

  • Young-Woo Youn

    (Korean Electrotechnology Research Institute, Gwangju Metropolitan City 61751, Republic of Korea)

  • Jin-Seok Kim

    (Department of Electrical Engineering, Osan University, Osan 18119, Republic of Korea)

Abstract

The development of industrial technology is based on electronic devices that are sensitive to power quality. Thus, the demand for high-quality and reliable power supplies is increasing. Voltage sag results in severe problems in the manufacturing process of power quality-sensitive industrial loads. When a fault occurs in a multi-ground power distribution system, the magnitudes of the fault current and voltage sag in the faulted and nonfaulted feeders become high. Hence, installing a superconducting fault current limiter (SFCL) is an effective method of compensating for fault current limitation and voltage sag. This study evaluates the effects of improving the magnitude, duration, and frequency of the voltage sag according to the type of SFCL used. First, a fault in the power distribution system is analyzed using PSCAD/EMTDC, a power system simulation software, according to the fault current-limiting element (CLE) and the type of SFCL. Second, the expected voltage sag frequency caused by a feeder fault in the power distribution system is assessed. Finally, the voltage sag improvement effect according to the CLE and the type of SFCL are compared. The trigger-type SFCL with a resistor as a CLE has been evaluated and found to be effective in improving voltage sag.

Suggested Citation

  • Joong-Woo Shin & Young-Woo Youn & Jin-Seok Kim, 2023. "Voltage Sag Mitigation Effect Considering Failure Probability According to the Types of SFCL," Energies, MDPI, vol. 16(2), pages 1-10, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:625-:d:1025378
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    References listed on IDEAS

    as
    1. Amir Safdarian & Mahmud Fotuhi-Firuzabad & Matti Lehtonen, 2019. "A General Framework for Voltage Sag Performance Analysis of Distribution Networks," Energies, MDPI, vol. 12(14), pages 1-15, July.
    2. Jagannath Patra & Nitai Pal, 2022. "A Mathematical Approach of Voltage Sag Analysis Incorporating Bivariate Probability Distribution in a Meshed System," Energies, MDPI, vol. 15(20), pages 1-19, October.
    3. Yunus Yalman & Tayfun Uyanık & Adnan Tan & Kamil Çağatay Bayındır & Yacine Terriche & Chun-Lien Su & Josep M. Guerrero, 2022. "Implementation of Voltage Sag Relative Location and Fault Type Identification Algorithm Using Real-Time Distribution System Data," Mathematics, MDPI, vol. 10(19), pages 1-13, September.
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