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Analysis of operation performance of PHILS-based superconducting current limiter connected to MVDC system

  • Seok-Ju Lee (Institute of Mechatronics Changwon National University) ;
  • Jae In Lee (Institute of Mechatronics Changwon National University)
  • Received : 2023.12.12
  • Accepted : 2023.12.30
  • Published : 2023.12.31

Abstract

In this paper, we analyze experimental results by applying the PHILS model to a lab-scale superconducting current limiter system for its actual application in medium-voltage direct current (MVDC) systems. Superconducting current limiters exhibit effective current-limiting performance in circuit breaker operations, particularly in limiting large fault currents within a short period, addressing the challenges posed by the increasing use of renewable energy and the integration of DC medium-voltage distribution systems. The development of such superconducting current limiters faces various technical and cost disadvantages, especially when applying a medium-voltage 35kV level system, which is intended for future introduction. The proven lab-scale superconducting current limiter system and the PHILS model are combined and integrated into the actual system. Our plan involves analyzing the limiter's performance, assessing its impact on the system, and preparing for its application in future medium-voltage systems. Utilizing RTDS, a simulation was conducted by connecting actual scaled-down equipment and systems, with the analysis results presented.

Keywords

Acknowledgement

This research was supported by Changwon National University in 2023~2024

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