Search for dissertations about: "long term stability"

Showing result 1 - 5 of 255 swedish dissertations containing the words long term stability.

  1. 1. Voltage stability issues related to implementation of large wind farms

    Author : Marcia Martins; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; grid code; voltage collapse; fixed speed wind turbine; voltage dip; short-term voltage stability; long-term voltage stability; wind park; voltage drop; wind farm; voltage stability;

    Abstract : .... READ MORE

  2. 2. Traumatic isolated rupture of the knee medial collateral ligament : diagnosis and long term effects

    University dissertation from Linköping : Linköpings universitet

    Author : Magnus Lundberg; Linköpings universitet.; Linköpings universitet.; [1996]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN;

    Abstract : Isolated partial rupture of the knee medial collateral ligament (MCL) is the most common traumatic knee ligament injury. Owing to the good short- and medium-term functional results after conservative treatment, this injury has been regarded as harmless. READ MORE

  3. 3. On the long-term behaviour of tension loaded piles in natural soft soils

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Jorge Yannie; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; uplift; soft clay; long-term; installation; tension load; creep rupture; piles; creep of piles; field test; rate dependent; numerical model;

    Abstract : The complexity and scale of new infrastructure projects have challenged the current geotechnical design practice. Urban areas are growing at a fast pace in the horizontal and vertical direction, with taller buildings and deeper underground constructions in already densely populated areas. READ MORE

  4. 4. Grid reinforcing wind generation

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Nayeem Ullah; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transient stability; variable speed wind turbine; long term voltage stability; short term voltage stability; frequency converter;

    Abstract : In this thesis, effects of some grid assisting possibilities that wind turbines could be equipped with, are investigated. The background is that concerns regarding the stability of the already existing power system in the presence of large wind farms have been risen. READ MORE

  5. 5. On Stability and Surge in Turbocharger Compressors

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Bertrand Kerres; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbocharger; Radial Compressor; Stability; Surge; Hurst exponent; Fractals; Machine Design; Maskinkonstruktion;

    Abstract : Turbochargers are used on many automotive internal combustion engines to increase power density. The broad operating range of the engine also requires a wide range of the turbocharger compressor. At low mass flows, however, turbo compressor operation becomes unstable and eventually enters surge. READ MORE