Sökning: "ground faults"

Visar resultat 1 - 5 av 52 uppsatser innehållade orden ground faults.

  1. 1. A deep learning approach for drilling tool condition monitoring in Raiseboring

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Hedaya Alyousif; [2023]
    Nyckelord :drilling tool condition; deep learning; drilling signals; CNN; spectrogram; Raisboring;

    Sammanfattning : Drilling tool wear can significantly affect the performance of the drilling operation and add extra cost to it. Accurate detection of drilling tool condition is very important for enabling proactive maintenance, minimizing downtime, and optimizing drilling processes. LÄS MER

  3. 2. Evaluation of DC Fault Current in Grid Connected Converters in HVDC Stations

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Soham SinhaRoy; [2022]
    Nyckelord :Symmetrical monopole; HVDC LCC and VSC; CTL; MMC; Converter reactor; DC smoothing reactor; DC pole-to-pole fault; Peak factor; SCC; SCR; PSCAD EMTDC;

    Sammanfattning : 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. LÄS MER

  4. 3. Gearbox fault detection, based on Machine Learning of multiple sensors

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Armands Krumins; [2021]
    Nyckelord :condition monitoring; gear; machine learning; surface fatigue;

    Sammanfattning : The increasing demand for higher efficiency and lower environmental impact of transmissions, used in automotive and wind energy industries has created a need for more advanced technical solutions to fulfil those requirements. Condition monitoring plays an important role in the transmission life cycle, saving resources and time. LÄS MER

  5. 4. Towards a Data-Driven Approach to Ground-Fault Location in Distribution Power System using Artificial Neural Network

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Antoine Dupuis; [2021]
    Nyckelord :Ground-Fault Location; Distribution power System; Artificial Neural Network; Machine Learning; Distributed Generation; Wavelet Transform;

    Sammanfattning : Motivated by the need for less polluting energy production, the recent increase in renewable electricity production is reshaping classical power systems. Initially unidirectional and constant power flow becomes multi-directional and dynamic. As one of the many consequences, classical power system fault location methods might become outdated. LÄS MER

  7. 5. Kvalitetssäkring av packning med digitala verktyget MCA-3000

    Kandidat-uppsats, Jönköping University/JTH, Byggnadsteknik och belysningsvetenskap

    Författare :Martin Göransson; Philip Brodnäs; [2021]
    Nyckelord :MCA-3000; Compaction quality; Roller; Quality control; Construction;

    Sammanfattning : Purpose: Compaction is one of the fundamental pillars of construction, without a proper compaction of ground material deformation may occur shorty after completed construction. A flaw of the traditional method of compaction control is that only point sources are obtained. This means that you can easily miss weak points of the compaction. LÄS MER