Essays about: "PMU measurements"

Showing result 1 - 5 of 6 essays containing the words PMU measurements.

  1. 1. The Dissipating Energy Flow method for analysing generator contribution to power system damping -- evaluation and interpretation

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Hampus Möller; [2019]
    Keywords : Electromechanical oscillations; small-signal stability; energy flow; PMU measurements; forced oscillations; dissipating energy.; Technology and Engineering;

    Abstract : Electromechanical oscillations is a power system phenomenon where generator rotors oscillate, leading to oscillatory power flows. Damping of such oscillations is important for system stability. Forced oscillations is a special case where one faulty component is the source of the oscillation. READ MORE

  3. 2. 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

  4. 3. 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

  5. 4. 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

  6. 5. Latency and Bandwidth Analysis of LTE for a Smart Grid

    University essay from KTH/Reglerteknik

    Author : Yuzhe Xu; [2011]
    Keywords : ;

    Abstract : Smart grid has been proposed as an alternative to the traditional electricity grid recently thanks to its advantages of real time control on consumption demands. The latest wireless network, 3GPP Long Term Evolution (LTE), is considered to be a promising solution to interconnecting the smart objects in a smart grid because LTE provides both low latency and large bandwidth. READ MORE