Essays about: "transmission fault"

Showing result 1 - 5 of 41 essays containing the words transmission fault.

  1. 1. Mitigating SSCI in a hybrid wind and PV farm utilizing PV-STATCOM : A Swedish case study

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Isabelle Löfgren; [2022]
    Keywords : impedance analysis; PV-STATCOM; SSCI; SSO; SSR; sub-synchronous control interaction;

    Abstract : The share of electricity generation in the power system being based on power electronics is increasing, which will impact the system in different ways, such as an increased risk for undesired interactions. An example is doubly fed induction generator (DFIG) based windfarms which have been shown to present negative resistance in (parts of) the sub-synchronous range (i. READ MORE

  2. 2. Transmission line protection performance in presence of power electronic-interfaced devices : Impact and needed countermeasures in the Swedish transmission system

    University essay from Uppsala universitet/Elektricitetslära

    Author : Hanna Olofsson; [2021]
    Keywords : ;

    Abstract : The penetration level of power electronic-interfaced devices (PEID:s) in power systems isincreasing, including wind- and solar power, HVDC and FACTS devices. Fault current injectedby PEID:s is lower in magnitude, may lack or contain a reduced negative sequence componentand can have a wide range of phase angles, as opposed to fault current supplied bysynchronous generators (SG:s). READ MORE

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

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Armands Krumins; [2021]
    Keywords : condition monitoring; gear; machine learning; surface fatigue;

    Abstract : 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. READ MORE

  4. 4. Smart components : Creating a competitive edge through smart connected drive train on mining machines

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : KAJOL SINGH; [2021]
    Keywords : Drivetrain; downtime; sensor system; operating data; planned maintenance; spare parts inventory; Drivlina; stillestånd; givarsystem; driftsdata; planerat underhåll; reservdelsinventering;

    Abstract : Major drivetrain components of the Epiroc machines like axles, gearboxes, transmission, torqueconverter, clutch, and bearings are critical components which are focused upon in this thesis. Failure of these major component results in breakdown of the vehicle and if early fault detection is not existing, then this causes engineers and technicians to spend a substantial amount of time to identify the root cause of the failure. READ MORE

  5. 5. Resonant overvoltages caused by transformer energization and saturation : Two EMT case studies conducted using models of the grid in Stockholm and an off-shore wind farm

    University essay from Uppsala universitet/Elektricitetslära

    Author : Gustav Sundberg; [2021]
    Keywords : Resonant overvoltages; Resonance frequency; Parallel resonance; EMT studies; Transformer saturation; Off-shore wind power; Inrush current; Sympathetic Inrush; Resonanta överspänningar; Resonansfrekvens; Parallellresonans; EMT-studier; Magnetiseringsström; Havsbaserad vindkraft;

    Abstract : This thesis investigates the impact of resonant overvoltages and their origin. Series and parallel resonances are present in any electrical grid. The frequency of which this resonance occurs is called resonance frequency. READ MORE