Search for dissertations about: "power system monitoring"

Showing result 1 - 5 of 160 swedish dissertations containing the words power system monitoring.

  2. 1. Automating Power Quality Analysis

    Author : Emmanouil Styvaktakis; Chalmers University of Technology; []
    Keywords : pattern classification; expert systems; induction motors; power system transients; voltage dips; power system faults; power quality; Kalman filtering; power system monitoring; transformer saturation; short time Fourier transform;

    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

  4. 2. Power System Oscillations - Detection, Estimation and Control

    Author : Morten Hemmingsson; Industriell elektroteknik och automation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; oscillation; power system; damping; power swing; distance protection; detection; estimation; real-time; reactive co-variation; control; Electrical engineering; load modulation; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : The topic of this thesis is the electro-mechanical oscillations which to some extent always are present in a power system. The demand of electric power is ever increasing. At the same time, the tolerance of disruptions in the power supply is decreasing. READ MORE

  5. 3. Towards Intelligent Power-System Monitoring: Segmentation, Feature Extraction, and Identification of Underlying Causes

    Author : Cuong Le; Chalmers University of Technology; []
    Keywords : harmonics analysis; Power-system monitoring; segmentation; power-system measurement; power quality; event analysis; signal-processing applications;

    Abstract : The increase in size of modern power systems together with the concept smart grid requires advanced monitoring to ensure system availability, reliability, and power quality. The huge amount of available data no longer permits analysis to be implemented manually and centrally. READ MORE

  6. 4. On monitoring voltage transients in medium and low voltage power systems

    Author : Anna Tjäder; Chalmers University of Technology; []
    Keywords : Clarke transformation; ESPRIT; overvoltage; surges; power system; power quality; capacitor switching; transients; power quality monitoring;

    Abstract : .... READ MORE

  7. 5. Embedded internet system architectures

    Author : Åke Östmark; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inbyggda system; Embedded System;

    Abstract : Today, using computers is a daily thing for many people over the world. We use computers to for example communicate, read news, search for sport events, correspond with e-mail, participate in meetings, and download the latest polyphonic ring tones for our mobile phones. READ MORE