Essays about: "Iron losses"

Showing result 21 - 25 of 45 essays containing the words Iron losses.

  1. 21. Study of Analytical Models for Harmonic Losses Calculations in Traction Induction Motors

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Anaïs Maroteaux; [2016]
    Keywords : Analytical model; Bertotti; curve fitting; FEM 2D; harmonic losses; induction mo-tor; iron losses; Joule losses; skin and proximity effects.; Analytisk modell; Bertotti; kurvanpassning; FEM 2D; harmoniska förluster; asynkro-nmotor; järnförluster; Joule förluster; skineffekt och proximity effekt.;

    Abstract : This Master Thesis deals with the study of analytical and finite-element (FE) models for calculation of losses in traction induction motors. Motors are fed through inverters for this type of application. Therefore, both fundamental and harmonic losses are considered. The study is done with one particular motor and one initial analytical model. READ MORE

  3. 22. Power Electronic Stages for a TFPMSM in Wave Power Applications

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Gustaf Falk Olson; [2016]
    Keywords : transverse flux permanent magnet synchronous machine TFPMSM ; active rectifier; direct drive wave energy converter; feedback linearization; cascaded PID controller.;

    Abstract : Direct drive wave energy conversion systems have been identified as a potentially major contributor to the world’s energy demands, forecasting shares of up to 25 % of the energy mix. Anders Hagnestål conducts research at the Royal Institute of Technology where a novel linear transverse flux permanent magnet generator is developed. READ MORE

  4. 23. Tribological evaluation of the contact between upper compression ring and cylinder liner with different surface coatings

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Author : Pär Wassborg; [2016]
    Keywords : piston ring; cylinder liner; wear; friction; grey cast iron; titanium oxide; chromium oxide;

    Abstract : The constant pursuit in the automotive industry to increase the engines performance, new solutions are always developed and tested to reduce the friction and increase the efficiency in the engine. One component that contributes to friction losses is the piston ring pack where the top compression stands for up to 40 %. READ MORE

  5. 24. Construction and development of a multifunctional measuring device for biomedical applications

    University essay from Umeå universitet/Institutionen för fysik

    Author : Tobias Nilsson; [2016]
    Keywords : lab-on-chip; bio-sensors;

    Abstract : Lab-on-a-chip technology is a rapidly growing research area. Joining together several disciplines, such as physics, biology and several instances of nanotechnologies. The aim of this research is mainly to produce chips that can do the same types of measurements as large lab equipment and measurement systems, but at a fraction of the size and cost. READ MORE

  6. 25. Wind Turbine End of Life : Characterisation of Waste Material

    University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Author : Niklas Andersen; [2015]
    Keywords : wind; power; turbine; decommissioning; renewable; waste; steel; copper; GRP; glass reinforced fibre; prognosis; vindkraft; vindkraftverk; förnybart; avfall; restprodukter; nedmontering; prognos; stål; koppar; glasfiber;

    Abstract : Wind power is growing fast all over the world, and in Sweden alone thousands of turbines has been installed the last few decades. Although the number of decommissioned turbines so far is very low, the rapid installation rate indicates that a similar rapid decommissioning rate is to be expected shortly. READ MORE