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Sai Nair, Vishnu (author)
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...
master thesis 2023
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Balaji Subramanian, Balaji (author)
LVDC Distribution systems are becoming popular due to the avenue of integrating renewable energy sources on a large scale. Predominant DC based power system architecture has been predicted to serve the needs of a sustainable society that holds the capability to self-generate, share, and trade power produced from renewable energy sources. Bottom ...
master thesis 2023
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van Ammers, Jeroen (author)
Submodules are the building blocks for MMC-type HVDC converters and therefore of utmost importance for converter reliability. In order to unlock smarter maintenance strategies for submodule semiconductors, the technical condition of the semiconductors needs to be estimated to form a health index. Besides the non-project-specific traditional...
master thesis 2023
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Mosselaar, Matthijs (author)
Zero emission fuels and reducing emissions are important topics in all transport sectors and hybrid systems play a key role in the transition towards full decarbonization. This thesis studies the components that are found in hybrid maritime electrical power systems and their influence on power...
master thesis 2023
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Buckley, Padraig (author)
As the electricity sector transitions towards a low-carbon future, an increasing proportion of synchronous generation in the power system is replaced with inverter-based resources (IBRs). The result is a reduction in the available rotational inertia in the grid, depleting its ability to withstand and arrest frequency changes following...
master thesis 2023
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Kamat Tarcar, Rohan (author)
Integrating renewable offshore wind generation into global power grids is a critical issue in the energy industry. Modular Multilevel Converter (MMC)-based High Voltage Direct Current (HVDC) grids are the most effective and promising technical solution for the new offshore wind energy power system connections. These grids offer scalability,...
master thesis 2023
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Choudhary, Shivesh (author)
The growing demand for electricity and the importance of decarbonization have forced to transition from fossil fuels to sustainable sources of energy like wind and solar. Currently, the universal power mix remains dominated by fossil fuels but plans are in motion to achieve the target set for the upcoming years. It involves grid expansion and...
master thesis 2022
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Jankovski, Milan (author)
Busbars are one of the most crucial components in the electricity grid and, as such, must always be protected against all types of faults. <br/>The busbar differential protection is a protection scheme typically utilized to protect the busbar system in high-voltage substations. Nevertheless, due to the vast number of substations in the...
master thesis 2022
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Yu, Quanhao (author)
With the replacements of coal and nuclear plants with renewable energy sources such as Type-3 and Type-4 wind turbines and photovoltaic system, the fault current levels of the electrical power system become lower. This leads to a weakened ability of the commercial distance relays to detect fault currents. Therefore, new fault detection...
master thesis 2022
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Mi, Yi (author)
Intelligent Electronic Devices (IEDs) serve as the foundation of substation automation system. Many testing cases have discussed the performance of implementing IEC 61850 in IEDs manufactured by different vendors. However, the procedures of configuring an IED and mapping it with the power network model are not summarized. This project aims to...
master thesis 2021
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Kongurai, Krit (author)
State estimation (SE) is a crucial tool for power system state monitoring since the control center requires a process to deal with a large number of imprecise measurements. Several SE methods have been applied and developed for the electric power system in the transmission level in the past several decades. Meanwhile, SE for the distribution...
master thesis 2021
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Dwivedi, Shreya (author)
As a power system evolves in size and complexity due to energy transition, the focus on the stability of the power system becomes more imperative than ever. Power system stability is tested when the system is subjected to large disturbances. Consequently, a conventional protection scheme is always deployed to take quick and automatic actions...
master thesis 2021
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CHOUDHURY, SALLENA (author)
Induction motors have a significant role in every aspect of modern living. They are extensively used in every industry because of their robust construction, easy operation, controllable and adaptable features. Therefore, occurrence of faults in these machines are a major concern. The protection schemes implemented in a network plays an important...
master thesis 2021
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Anjali Reji Isac, Anjali (author)
Overhead power lines play a key role in the transmission and distribution of electrical power. Traditionally, the operating limits of these overhead lines are fixed and determined through static line rating. These limits are designed under conservative conditions such as high loads and extreme weather scenarios. However, the global energy demand...
master thesis 2021
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Vermond, Lukas (author)
In an effort to make DNA sequencing more accessible and affordable, Oxford Nanopore Technologies developed the MinION: A portable cellphone sized DNA sequencing device. Translating the information from this device to a nucleotide sequence is called basecalling, and is done with the aid of artificial neural networks. In this thesis, we accelerate...
master thesis 2020
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Sharma, Samriddh (author)
Today, 60% of the European mainline railway network is electrified with 80% of total traffic. It will further increase driven by The Trans-European Transport Network (TEN-T) and sustainability initiatives. As electricity consumption by railway networks increases, quantification of rail transport’s actual energy consumption is essential....
master thesis 2020
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Kidambi Murali, Pragati (author)
Renewable energy resources are the most successful, promising, and economical mode of energy generation. Moreover, wind energy is also one of the victorious candidates in generating renewable energy. Currently, High Voltage Direct Current (HVDC) systems are designed to integrate the energy harvested in the Offshore Wind Farms (OWF) to the grid...
master thesis 2020
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Shetgaonkar, Ajay (author)
Multiterminal dc (MTDC) network is preferred due to its reliability, security of supply and flexibility. However, MTDC network also comes with the protection challenges resulting from dc faults. Hence, the dc circuit breaker (DC CB) is imperative in such a network. In these recent years, several DC CB technologies have been proposed and...
master thesis 2020
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KOUROS, Michail (author)
To ensure a safe power system which operates correctly, a proper grounding system is necessary to provide connections to the ground at specific points. A grounding system is generally designed: (1) to reduce voltages occurring in the grounding system for short circuit situations (at power frequency) to an acceptable level in terms of step and...
master thesis 2020
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Rivera Diez, Laura (author)
The electrical infrastructure is evolving, shifting into a decentralized grid that allows the incorporation of renewable energies and mitigates the negative effects of power outages. It is predicted that this will lead to a substantial increase in the amount of microgrids deployed worldwide. Especially in locationswith a less reliable grid, the...
master thesis 2020
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