Sökning: "small signal stability"

Visar resultat 11 - 15 av 63 avhandlingar innehållade orden small signal stability.

  1. 11. Optimization-based coordination strategies for connected and autonomous vehicles

    Författare :Robert Hult; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Model Predictive Control; Optimization; Optimal Control; Connected Automated Vehicles; Intersection Coordination;

    Sammanfattning : Automated vehicles (AV) are expected to reach the consumer market within the next decade. Once AVs become ubiquitous, they could resolve difficult traffic situations through communication-based cooperation. LÄS MER

  3. 12. Nyquist Stability Analysis of a VSC-HVDC System with a Distributed Parameter DC-cable Model

    Författare :Yujiao Song; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric power transmission; Nyquist stability analysis; VSC-HVDC system; Distributed parameter cable model; Small gain theorem.; Weak AC-grid;

    Sammanfattning : Voltage source converter based high voltage direct current (VSC-HVDC) transmission systems have now been in operation since 1997 as it is a reliable and flexible method of power transmission. This thesis focuses on small signal dynamics of such systems, emphasizing stability properties. LÄS MER

  4. 13. Concepts for Power System Small Signal Stability Analysis and Feedback Control Design Considering Synchrophasor Measurements

    Författare :Yuwa Chompoobutrgool; Luigi Vanfretti; Mats Larsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wide-area damping control; inter-area oscillations; power system stabilizers; PMU; Järnvägsgruppen - Elsystem; Järnvägsgruppen - Elsystem;

    Sammanfattning : In the Nordic power network, the existence of poorly damped low-frequency inter-area oscillations (LFIOs) has long affected stability constraints, and thereby, limited power transfer capacity. Adequate damping of inter-area modes is, thus, necessary to secure system operation and ensure system reliability while increasing power transfers. LÄS MER

  5. 14. Performance Quantification of Interarea Oscillation Damping Using HVDC

    Författare :Joakim Björk; Karl H. Johansson; Lennart Harnefors; Robin Preece; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC transmission control; interarea oscillations; power oscillation damping; small-signal stability; frequency control; controllability; MIMO control; decoupling control; multivariable interaction; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : With the transition towards renewable energy, and the deregulation of the electricity market, generation patterns and grid topology are changing. These changes increase the need for transfer capacity. One limiting factor, which sometimes leads to underutilization of the transmission grid, is interarea oscillations. LÄS MER

  7. 15. Protein Microarrays Based on Single Framework Recombinant Antibody Fragments (SINFABS) - Catcher and Carrier - A Crucial Combination

    Författare :Cornelia Steinhauer; Institutionen för immunteknologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; serology; transplantation; Immunologi; serologi; probe; coupling chemistry; solid support; stability; scFv; antibody microarray; protein microarray; Biotechnology; Bioteknik;

    Sammanfattning : Antibody-based microarrays are among the novel class of rapidly evolving proteomic technologies. In recent years, antibody microarrays have emerged as a unique tool for high-throughput protein expression profiling with great promise within biomedicine and a wide range of potential applications, including disease diagnostics and biomarker discovery. LÄS MER