Search for dissertations about: "power base"

Showing result 1 - 5 of 314 swedish dissertations containing the words power base.

  2. 1. Wind power in thermal power systems

    Author : Lisa Göransson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; integration; wind power; variation moderator; PHEV; storage;

    Abstract : AbstractWind power is a key technology in the effort to transform the power system in order to reduce its climate impact. However, the ability of wind power to reduce CO2-emissions depends on the properties of the power system. READ MORE

  4. 2. Variability and variation management in a renewable electricity system -large-scale wind- and solar power deployment in Europe

    Author : Lina Reichenberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; marginal cost of electricity; VRE; variability smoothing; solar power; power systems; renewable energy; wind power; energy systems modelling;

    Abstract : The large-scale deployment of wind and solar power poses challenges to the electricity system by introducing variability on the generation side. To handle these variations, variation management strategies can be employed to ensure that generation meets demand. READ MORE

  5. 3. High-Efficiency SiC Power Conversion : Base Drivers for Bipolar Junction Transistors and Performance Impacts on Series-Resonant Converters

    Author : Georg Tolstoy; Hans-Peter Nee; Stig Munk-Nielsen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon Carbide; Bipolar Junction Transistor BJT ; Resonant converter; Series-resonant converter SLR ; Base drive circuits; High- Efficiency Converters; High-Frequency Converters; Electrical Engineering; Elektro- och systemteknik;

    Abstract : This thesis aims to bring an understanding to the silicon carbide (SiC) bipolar junction transistor (BJT). SiC power devices are superior to the silicon IGBT in several ways. They are for instance, able to operate with higher efficiency, at higher frequencies, and at higher junction temperatures. READ MORE

  6. 4. Design and Characterization of RF-Power LDMOS Transistors

    Author : Olof Bengtsson; Jörgen Olsson; Lars Vestling; Claes Beckman; Olof Tornblad; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power Amplifiers; LDMOS transistors; RF-power; IMD; Technology CAD; Load-Pull; Electronics; Elektronik;

    Abstract : In mobile communication new applications like wireless internet and mobile video have increased the demand of data-rates. Therefore, new more wideband systems are being implemented. READ MORE

  7. 5. Governing Power, Knowledge and Conflict in Complex Commons Systems

    Author : Christian Stöhr; Chalmers tekniska högskola; []
    Keywords : Co-management; Power; Governance; Conflict; Wolf governance; Neo-institutionalism; Commons; Fisheries; Knowledge; Open Source Software governance; Participation; Science-policy;

    Abstract : This thesis contributes theoretically and empirically to the research about complex commons governance systems that are characterized by numerous and diverse agents, complex distributions of power, incomplete and competing knowledge as well as diverse contestation and conflict processes. Governance refers to a system of public and/or private coordinating, steering and regulatory processes established and conducted for social (or collective) purposes. READ MORE