Protection Study of MTDC power system

Title

Protection Study of MTDC power system

 Author

Sai Nair, Vishnu (TU Delft Electrical Engineering, Mathematics and Computer Science)

Contributor

Popov, M. (mentor) ORCID 0000-0001-7292-5334
Lekić, A. (graduation committee) ORCID 0000-0003-2727-0767
Liu, L. (graduation committee) ORCID 0000-0002-1420-0359

 Degree granting institution

Delft University of Technology

 Programme

Electrical Engineering | Sustainable Energy Technology

 Date

2023-12-15

 Abstract

This thesis investigates and compares the performance of HVDC protection algorithms in terms of their sensitivity, selectivity, speed, and robustness. The threshold determination process for each algorithm has been described in detail as well. Each algorithm is tested under various fault resistances, and fault distances to test the sensitivity of the algorithm. The trip time for each case in each algorithm is monitored to analyze the speed of the algorithm. Various external faults have been simulated to test the selectivity of the algorithm. Lastly, the resilience of each algorithm against white noise has been tested. Furthermore, the effect of varying the sampling frequency and the inductance of the current limiting inductors on each algorithm is investigated. The HVDC protection algorithms discussed are - current differential deviation-based protection, ROCOV-based protection, ROCOC-based protection, and DC reactor voltage change rate-based protection. All protection algorithms have been implemented in the PSCAD environment. The noise resilience analysis for each algorithm has been performed in MATLAB.

 Subject

HVDC
protection measures
Algorithms

 To reference this document use:

http://resolver.tudelft.nl/uuid:4c3523d3-5f5a-4293-a7ec-6a0b40a596c0

 Part of collection

Student theses

 Document type

master thesis

 Rights

© 2023 Vishnu Sai Nair
Files
PDF Final_Thesis_Report_Vishn ... 05976_.pdf 3.98 MB
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