Essays about: "HVDC LCC"
Showing result 1 - 5 of 7 essays containing the words HVDC LCC.
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1. Evaluation of DC Fault Current in Grid Connected Converters in HVDC Stations
University essay from Uppsala universitet/Institutionen för elektroteknikAbstract : The main circuit equipment in an HVDC station must be rated for continuous operation as well as for stresses during ground faults and other short circuits. The component impedances are thus selected for proper operation during both continuous operation and short circuit events. READ MORE
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2. Detection and location of HVDC commutation faults from PMU data
University essay from Lunds universitet/Industriell elektroteknik och automationAbstract : Commutation Failures in LCC HVDC converters is a topic that is normally addressed from the component perspective, looking at converters’ internal signals. How these commutation failures affect the outer AC network is not deeply understood yet. READ MORE
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3. Analysis of harmonic cross-modulation in HVDC line-commutated converters for practical design purposes
University essay from Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och MaskinteknikAbstract : The use of HVDC has many benefits over HVAC for some specific power transmission purposes. However, two major problems with HVDC links are that the converters produce harmonics and consume reactive power. Electrical filters are used to compensate for this and are a major cost driver of HVDC links. READ MORE
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4. Power Loss Evaluation of Submarine Cables in 500 MW Offshore Wind Farm
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : The main objective of this thesis is to develop a new methodology to evaluate the transmission cable losses of wind-generated electricity. The research included the power loss variations of submarine cables in relation to the line length, cable capacity and the transmission technology in an offshore wind farm having a capacity of 500 MW. READ MORE
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5. A New Cell Bypass Arrangement and Control for Modular Multilevel Converters based on Thyristor Forced Commutation Circuit
University essay from KTH/Skolan för elektro- och systemteknik (EES)Abstract : HVDC transmission lines are a competitive and in some cases are proven to bea superior choice compared to AC transmission applications. Suitable convertershave been developed for that matter where Modulär Multilevel Converters (MMC)are highly preferred due to their low losses, no filtering requirementsand direct andfast control of AC and DC side. READ MORE