Essays about: "Phasor Measurement Units"

Found 5 essays containing the words Phasor Measurement Units.

  1. 1. Detection and location of HVDC commutation faults from PMU data

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Alejandro Belinchon Calderon; [2018]
    Keywords : HVDC-links; HVDC converters; Commutation failures; Phasor measurement units PMUs ; Electric power systems; Wide Area Measurement systems WAMS ; Standard IEEEC 37.118; Single-line to ground faults; Three-Phase faults; Fault detection and location; Nordic 32; DigSilent-PowerFactory; PSCAD; MATLAB-Simulink; Symmetrical components.; Technology and Engineering;

    Abstract : 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

  3. 2. Centralized Versus Distributed State Estimation for Hybrid AC/DC Grid

    University essay from KTH/Industriell ekologi

    Author : Viktor Briggner; Pontus Grahn; Linus Johansson; [2016]
    Keywords : ;

    Abstract : State estimation enables for values throughout a power transmission grid to be known with a higher level of certainty. New technologies for bulk power transmission and power grid measuring enables for new possibilities in the energy sector and it is required that state estimation algorithms are developed to adapt to these new technologies. READ MORE

  4. 3. Improving Low Voltage Ride-Through Requirements (LVRT) Based on Hybrid PMU, Conventional Measurements in Wind Power Systems

    University essay from Avdelningen för fysik och elektroteknik

    Author : Chinedum Ekechukwu; [2014]
    Keywords : State Estimation; Power Systems; Unscented Kalman Filters; Phasor Measurement Units;

    Abstract : Previously, conventional state estimation techniques have been used for state estimation in power systems. These conventional methods are based on steady state models. As a result of this, power system dynamics during disturbances or transient conditions are not adequately captured. READ MORE

  5. 4. Synchronized Phasor Measurement Units : Implementation of PMU Algorithm on HVDC Control Platform

    University essay from KTH/Industriella informations- och styrsystem

    Author : Samarth Deo; [2013]
    Keywords : PMU; PDC; HVDC; WAMS; GPS; IEEE C37.118.2005;

    Abstract : Power Systems most often operate in the margins of stability limits. With power grids becoming even more automated now, Phasor Measurement Units (PMU’s) and Phasor Data Concentrators (PDC’s) become essential for real-time control of the system. READ MORE

  6. 5. ESTIMATION OF ELECTROMECHANICAL OSCILLATIONS IN THE NORDIC POWER SYSTEM USING SYNCHROPHASOR MEASUREMENT DATA

    University essay from KTH/Elektriska energisystem

    Author : Sebastian Bengtsson; [2011]
    Keywords : ;

    Abstract : Unstable electromechanical dynamics, or electromechanical modes, may cause large amplitude oscillations that may lead to system break-ups or partial blackouts. Thus, the monitoring and study of these modes are of prominent importance and can be of great help for system operators and planning engineers. READ MORE