Search for dissertations about: "power quality"

Showing result 1 - 5 of 537 swedish dissertations containing the words power quality.

  1. 1. Automating Power Quality Analysis

    University dissertation from Chalmers University of Technology

    Author : Emmanouil Styvaktakis; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; power quality; power system monitoring; voltage dips; power system faults; induction motors; transformer saturation; short time Fourier transform; Kalman filtering; pattern classification; expert systems; power system transients;

    Abstract : The increased requirements on supervision, control, and performance in modern power systems make power quality monitoring a common practise for utilities. Large databases are created and automatic processing of the data is required for fast and effective use of the available information. READ MORE

  2. 2. On power quality and protection

    University dissertation from Chalmers University of Technology

    Author : Fan Wang; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; power system disturbance; power system protection; digital protective relays; protection algorithms; distance protection; overcurrent protection;

    Abstract : .... READ MORE

  3. 3. Power Quality Disturbances and Protective Relays

    University dissertation from Chalmers University of Technology

    Author : Fan Wang; Chalmers tekniska högskola.; Chalmers University of Technology.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elkraftteknik; Electric power engineering; power quality; power system disturbance; digital protective relays; protection algorithms; component switching; frequency deviation; overcurrent relays; impedance relays;

    Abstract : This thesis combines knowledge from two areas: power quality and power system protection. Power quality concerns the effect of voltage disturbances on end-user equipment and of current disturbances on network components. Power system protection concerns the detection of faults in the system from measured voltages and currents. READ MORE

  4. 4. Power-generation, Power-electronics and Power-systems issues of Power Converters for Photovoltaic Applications

    University dissertation from Chalmers University of Technology

    Author : Björn Lindgren; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; bang-bang control; current control; embedded generation; photovoltaic; power quality; power systems; shading tolerance; solar power generation;

    Abstract : The thesis deals with issues related to solar energy systems, or more specifically, the electric systems of photovoltaic (PV) installations. Initially aspects of planning and estimating the performance of a PV-installation are considered. READ MORE

  5. 5. On harmonic distortion in power systems

    University dissertation from Chalmers University of Technology

    Author : Johan Lundquist; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; harmonic distortion; power sustem monitoring; rectifiers; drives; converters; voltage notching; active power; losses; harmonic propagation; resonance; harmonic filter; unbalance;

    Abstract : .... READ MORE