A comprehensive review of potential protection methods for VSC multi-terminal HVDC systems

Jalal Sahebkar Farkhani, Özgür Çelik, Kaiqi Ma, Claus Leth Bak and Zhe Chen

Renewable and Sustainable Energy Reviews, 2024, vol. 192, issue C

Abstract: High voltage direct current (HVDC) transmission systems represent a significant development for future power systems due to presenting promising solutions for long-distance power transmission. However, the protection of HVDC systems is becoming one of the most significant challenges due to the extremely high short-circuit current within a short time span and the lack of zero crossing in the DC systems. DC protection schemes must detect and isolate the fault within 4–6 ms, while AC protection systems operate with considerably longer response times. Therefore, the techniques utilized for HVDC protection systems require more attention to enhance their performance in the future. This paper provides a comprehensive review of various protection techniques for HVDC systems, highlights recent advances, and analyzes the pros and cons of each method. Initially, different challenges of HVDC protection systems are presented, and then various HVDC protection schemes are discussed and classified into two groups based on the operation time. After that existing protection schemes are investigated in detail by including practical examples. The review aims to close the gap between the presented HVDC protection methods and technical challenges in order to overcome future issues of power system protection. Moreover, signal processing methods and artificial intelligence (AI) techniques, which play a key role in the future of protection systems, are extensively investigated to highlight the possible solutions. Finally, various recommendations, key challenges, and future trends with respect to the development of HVDC protection schemes have been presented for researchers and engineers studying in this field.

Keywords: High voltage direct current (HVDC); Protection schemes; Voltage source converter; Multi-terminal HVDC grids; Operating time; Main and backup protection systems (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.rser.2024.114280

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