Sökning: "power source"

Visar resultat 11 - 15 av 793 avhandlingar innehållade orden power source.

  1. 11. Governing Power, Knowledge and Conflict in Complex Commons Systems

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

    Sammanfattning : 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. LÄS MER

  3. 12. 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

  4. 13. Power angle control of grid-connected voltage source converter in a wind energy application

    Författare :Jan Svensson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage angle control; simulation; wind power; power angle control; Linear Quadric control LQ ; bandwidth; Kalman filter; control; pulse width modulation PWM ; wind energy; voltage source converter VSC ; harmonics;

    Sammanfattning : .... LÄS MER

  5. 14. Voltage Source Converters with Energy Storage Capability

    Författare :Hailian Xie; Hans-Peter Nee; Lennart Ängquist; Ambra Sannino; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Voltage source converter; StatCom; Energy storage; Active power compensation; Phase jump; Voltage dip; VSC; Weak network; Flux modulation; deadbeat control; Electric power engineering; Elkraftteknik;

    Sammanfattning : This project deals with voltage source converters with energy storage capability. The main objective is to study the possible benefits of energy storage to a power system with a VSC as the interface between them. First of all, a converter control system is proposed for a two level VSC. LÄS MER

  7. 15. 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