Search for dissertations about: "power quality"

Showing result 11 - 15 of 779 swedish dissertations containing the words power quality.

  2. 11. Wind-turbine harmonic emissions and propagation through a wind farm

    Author : Kai Yang; Åke Larsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Renewable energy; Electric power system; Wind power; Power quality; Power system harmonics; Electric Power Engineering; Elkraftteknik; Energy Engineering; Energiteknik;

    Abstract : The increasing demand for sustainable energy is one of the driving forces behind the increasing use of wind power by means of wind-turbines in electric power systems. Modern wind turbines commonly employ variable-speed-generator technology associated with a power-electronic converter as part of the grid connection. READ MORE

  4. 12. Power quality analysis and techno-economic modeling for microgrids

    Author : Jakob Nömm; Sarah Rönnberg; Math Bollen; Josep Guerrero; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power Quality; Economy; Microgrids; Electric Power Engineering; Elkraftteknik;

    Abstract : The work done in this thesis considers microgrids from two different aspects. Power quality and techno-economics of microgrids. Detailed power quality measurements have been made at a single house hydrogen-solar microgrid that consists of state-of-the-art energy efficiency technology, energy production and energy storage. READ MORE

  5. 13. On the Benefit of Harmonic Measurements in Power Systems

    Author : Erik Thunberg; KTH; []
    Keywords : Power Quality; Power System Harmonics; Harmonic Distortion; Harmonic Measurement; Harmonic Analysis; Power Distribution;

    Abstract : .... READ MORE

  6. 14. Exploring Trends, Patterns and Characteristics of Quality Management Through Text Mining

    Author : Daniel Carnerud; Ingela Bäckström; Kristen Snyder; Raine Isaksson; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Quality Management; Total Quality Management; TQM; Quality Movement; Quality Revolution; Business Excellence; Text Mining; Systems Thinking; Kvalitetsteknik; Offensiv Kvalitetsutveckling; Systematiskt Kvalitetsarbete; Quality Management; Total Quality Management; TQM; Text Mining;

    Abstract : At frequent intervals, new reports and papers are published stressing the importance of high quality and quality improvement measures in the public and private sector if Sweden is to survive as a welfare state and industrial nation. The situation seems not to be unique for Sweden: similar opinions can be heard in other parts of the world as well. READ MORE

  7. 15. Mathematics teaching through the lens of planning : actors, structures, and power

    Author : Helena Grundén; Jeppe Skott; Sara Irisdotter Aldenmyr; Anna Chronaki; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematics education; mathematics teaching; planning; Critical Discourse Analysis; actors; structures; power; Mathematical Education; Matematikdidaktik;

    Abstract : This dissertation explores mathematics teaching by focusing on planning. The planning is seen as a social phenomenon related to surrounding practices and power relations in and between practices. Hence, planning in this dissertation is explored beyond what teachers do when planning. READ MORE