A new fault detection and classification scheme in MTDC grids with hybrid cable and overhead transmission line

Document Type : Power Article

Authors

1 . Faculty of electrical and computer engineering, Semnan University, Semnan, Iran

2 Faculty of electrical and computer engineering, Semnan University, Semnan, Iran

3 School of Engineering, Damghan University, Damghan, Iran

Abstract

The growth of exploitation of distributed generation sources (DGs) such as offshore wind farms makes DC networks an interesting alternative to conventional AC grids. But protection of DC lines is one of the main challenges of these grids especially in hybrid non-homogenous corridors including underground cables and overhead lines. In this paper, a new single-end time domain-based protection scheme for fault detection and classification is presented with remarkable features such as easy implementation, low computation burden, low sampling frequency, no setting parameters requirement, and also appropriate performance in noisy conditions. To validate the proper performance of the proposed scheme, several scenarios are simulated including internal and external DC, AC faults, and severe load variations in EMTDC/PSCAD software environment. Also, some hybrid line scenarios such as line length variation, OHL or Cable length changes, and increasing the number of line segments are investigated. The result shows desirable performance in various conditions.

Keywords

Main Subjects

References

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Journal of Modeling in Engineering
Volume 22, Issue 76
May 2024
Pages 141-154

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History

  • Receive Date: 02 August 2023
  • Revise Date: 03 September 2023
  • Accept Date: 07 October 2023

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