Search for dissertations about: "voltage control."

Showing result 1 - 5 of 268 swedish dissertations containing the words voltage control..

  1. 1. Control of systems with limited capacity

    University dissertation from Department of Automatic Control, Lund Institute of Technology (LTH)

    Author : Stefan Solyom; Lunds universitet.; Lund University.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage collapse; power systems; anti-windup; piecewise linear systems; synthesis; ABS; PID control; LMI; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : Popular Abstract in Swedish Alla regler system kan betraktas som system med begränsad kapacitet. Detta arbetet består av fyra delar. Den första delen betraktar reglering av låsningsfria bromsar (ABS). Den andra delen betraktar en tuning metod för PID regulatorer. READ MORE

  2. 2. Coordinated Voltage Control in Electric Power Systems

    University dissertation from Mats Larsson, IEA, LTH, Box 118, S-221 00 Lund, Sweden

    Author : Mats Larsson; Lunds universitet.; Lund University.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics and Electrical technology; trees.; search methods; control; predictive; voltage control; power system dynamic stability; Modelica; ObjectStab; multi-machine power system; voltage stability; object oriented methods; modelling; simulation; describing function analysis; tap changer; limit cycle; Elektronik och elektroteknik; Electrical engineering; Elektroteknik;

    Abstract : Popular Abstract in Swedish Det elektriska kraftsystemets uppgift är att ge konsumenter en säker och stabil energitillgång till lägsta möjliga kostnad. Sett ur ett ingenjörsperspektiv tillkommer några extra krav såsom att variationerna i spänning och frekvens skall vara acceptabla, samt att enstaka komponenters kapacitetsgränser ej överskrids. READ MORE

  3. 3. Voltage sag ride-through of AC drives control and analysis

    University dissertation from Stockholm : KTH

    Author : Kai Pietiläinen; KTH.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Electrical engineering; electronics and photonics Electronic measurement and instrumentation; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronisk mät- och apparatteknik;

    Abstract : This thesis focuses on controller design and analysis for induction motor (IM) drives, flux control for electrically excited synchronous motors with damper windings (EESMs), and to enhance voltage sag ride-through ability and analysis for a wind turbine application with a full-power grid-connected active rectifier. The goal is to be able to use the existing equipment, without altering the hardware. READ MORE

  4. 4. Optimal and Resilient Control with Applications in Smart Distribution Grids

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Kaveh Paridari; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Resilient Control; Robust Control; Optimal Control; Smart Distribution Grid; Industrial Control Systems; Microgrids; Demand Response; Energy; Electrical Engineering; Elektro- och systemteknik;

    Abstract : The electric power industry and society are facing the challenges and opportunities of transforming the present power grid into a smart grid. To meetthese challenges, new types of control systems are connected over IT infrastructures. READ MORE

  5. 5. Power angle control of grid-connected voltage source converter in a wind energy application

    University dissertation from Chalmers University of Technology

    Author : Jan Svensson; Chalmers tekniska högskola.; Chalmers University of Technology.; [1995]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pulse width modulation PWM ; voltage source converter VSC ; power angle control; voltage angle control; Linear Quadric control LQ ; Kalman filter; wind power; wind energy; harmonics; control; bandwidth; simulation;

    Abstract : .... READ MORE