Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"High-Voltage Direct Current Transmission"”.
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QUANTITATIVE RELIABILITY ANALYSIS OF A HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
… represents only a part of an overall HVDC transmission scheme. The basic approach is extended in the thesis to the development of a transmission capability probability and frequency table which includes all the major system components. Equivalent simplified probability models are developed …
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Examination of Power Systems Solutions Considering High Voltage Direct Current Transmission
Since the end of the Current Wars in the 19th Century, alternating current (AC) has dominated the production, transmission, and use of electrical energy. The chief reason for this dominance was (and continues to be) that AC offers a way minimize transmission losses yet transmit large power from …
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Controle preditivo com número reduzido de estados aplicado a conversor multinível modular
… areas has been studied, especially in high voltage direct current transmission systems. Thus, this work describes the MMC converter model, considering both half and full-bridge submodules, associated with a model predictive control strategy, which considers a reduced number of states to …
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Design and Optimization of Intelligent PI Controllers (Fuzzy and Neuro-Fuzzy) for HVDC Transmission System
… of Fuzzy Logic (FL) based PI controllers for High Voltage Direct Current Transmission Systems (HVDC) by optimizing the key parameters i.e. membership functions (MFs) and fuzzy rule base in the controllers design. In the first part of the thesis, an adaptive Fuzzy PI controller is designed and …
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Control, Topology and Component Investigations for Power-Dense Modular Multilevel Converters
… challenges in meeting ever-growing demands for higher power density, broader operation ranges, and lower costs. The cost-benefits of economies of scale further emphasize the need for modular and scalable converters. While no single converter for high-power applications satisfies all criteria, …
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Non-pilot Protection of the HVDC Grid
… protection system for the next generation power transmission system, the High-Voltage Direct Current (HVDC) grid. The HVDC grid protection system is required to be (i) adequately fast to prevent damages and/or converter blocking and (ii) reliable to minimize the impacts of faults. This study is …
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Acceptance criteria as part of the German energy turnaround
Die vorliegende Arbeit ist eine Fallstudie zum Netzausbauprojekt „Suedlink“. Sie gliedert sich demnach in vier wesentliche Abschnitte: 1. In einem theoretischen Teil werden die für diese Arbeit wichtigen Theorien der „Sozialen Akzeptanz“ nach Wüstenhagen et al. (2007), der „Schritte der …