Sökning: "power combining"

Visar resultat 1 - 5 av 280 avhandlingar innehållade orden power combining.

  1. 1. Transformative Power Challenged : EU Membership Conditionality in the Western Balkans Revisited

    Författare :Jessica Giandomenico; Bennich-Björkman Li; Jarstad Anna; David Phinnemore; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; European Union; Western Balkans; EU enlargement; historical institutionalism; power; elections; norm transfer; compliance; Statskunskap; Political Science;

    Sammanfattning : The EU is assumed to have a strong top-down transformative power over the states applying for membership. But despite intensive research on the EU membership conditionality, the transformative power of the EU in itself has been left curiously understudied. LÄS MER

  3. 2. Power control strategies for renewable energy systems : The inverter's role in future power systems

    Författare :Sara Anttila; Cecilia Boström; Sandra Eriksson; Lena Max; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Renewable energy systems; Grid-connection; Inverter; Power control; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Connecting more non-dispatchable renewable energy sources (RESs) will result in a higher power variability and a lower system inertia when the synchronous generators are replaced by inverter-connected RES. Inverter control can be divided in three categories: grid-following, grid-forming (GFM) and grid-supporting. LÄS MER

  4. 3. Compact and Wideband Spatial Power Combining Module for mm-Wave High-Power Amplifiers

    Författare :Artem Roev; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; integration; ; array amplifiers; spatial power combining; ; RFIC;

    Sammanfattning : The continued growth of data traffic in wireless communication applications demands to launch next-generation communication services at millimeter wave frequencies. Despite the obvious advantage of a large available spectrum, using millimeter wave bands is accompanied by many technological challenges. LÄS MER

  5. 4. Generation Reliability for Isolated Power Systems with Solar, Wind and Hydro Generation

    Författare :Jimmy Ehnberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Generation reliability; Isolated power systems; Wind power; Solar power; Renewable energy; Stochastic modelling;

    Sammanfattning : This licentiate thesis deals with reliability issues for small isolated power systems. The focus is on power systems in remote areas based entirely on renewable energy sources. The sources investigated in this thesis are mainly solar and wind power; stochastic models for these energy sources are presented. LÄS MER

  7. 5. On Waveform Distortion in Modern Low-Voltage Installations with Multiple Nonlinear Devices

    Författare :Tatiano Busatto; Math Bollen; Xiongfei Wang; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; power system harmonics; power electronics; nonlinear systems; Electric Power Engineering; Elkraftteknik;

    Sammanfattning : The continuing society quest for more comfort combined with the need to minimize global environmental impacts is constantly introducing new technologies into our daily lives. Among the recent developments, the advances in energy-efficient lighting and renewable energy technologies have enabled a maturity level in cleaner electricity production and efficient use of energy. LÄS MER