Sökning: "forced oscillations"

Hittade 3 uppsatser innehållade orden forced oscillations.

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

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

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

    Sammanfattning : 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. LÄS MER

  3. 2. Black-Box Modeling and Attitude Control of a Quadcopter

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Ingrid Kugelberg; [2016]
    Nyckelord :Attitude Control; Black-Box Modeling; Closed-Loop Identification; Multicopter; PID; Quadcopter; System Identification; UAV;

    Sammanfattning : In this thesis, black-box models describing the quadcopter system dynamics for attitude control have been estimated using closed-loop data. A quadcopter is a naturally unstable multiple input multiple output (MIMO) system and is therefore an interesting platform to test and evaluate ideas in system identification and control theory on. LÄS MER

  4. 3. ESTIMATION OF ELECTROMECHANICAL OSCILLATIONS IN THE NORDIC POWER SYSTEM USING SYNCHROPHASOR MEASUREMENT DATA

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektriska energisystem

    Författare :Sebastian Bengtsson; [2011]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER