Essays about: "järnförluster"

Showing result 1 - 5 of 6 essays containing the word järnförluster.

  1. 1. Development of an Investigation Method to Analyse Effect of Laser Cutting on Iron Losses in an Electric Machine

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Rishabh Raj; [2022]
    Keywords : Electrical machine; iron losses; laser cutting; loss models; manufacturing defects; single sheet tester; Elektrisk maskin; järnförluster; laserskärning; förlustmodeller; tillverkningsfel; enplåtsprovare;

    Abstract : In this fast pace world, climate change is one of the primary concerns worldwide. The world is racing towards reducing CO2 emissions by focusing on decreasing energy consumption. Electric motors capture about two-third of the industrial energy consumption, of which the most growing sector is electrical vehicles. READ MORE

  3. 2. Boost Converter Inductor Design for High-Power Fuel Cells Using Pareto Optimisation for Single and Coupled Cores

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Lucas Tunelid; [2022]
    Keywords : Fuel Cells; Interface Converters; Inductor Design; Mutiobjective Optimisation; Bränsleceller; Gränsnittsomvandlare; Induktor Design; Multiobektiv Optimering;

    Abstract : Hydrogen has been identified by the European Commission to be a competitive alternative to fossil fuels within the transport sector in the medium to long perspective. Because of this, an increased understanding is required of the electrical power train present within such vehicles. READ MORE

  4. 3. Sensorless algorithm for synchronous machines using current oversampling and PWM harmonics

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Giorgio Gullone; [2018]
    Keywords : ;

    Abstract : Sensorless-controlled drives represent a solution drawing an increasinglyimportant attention for the benefits they entail. At the cost ofa slightly lower dynamics compared with the traditional drives, theyinvolve a reduction of the system costs and complexity and improvednoise immunity and reliability. READ MORE

  5. 4. 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

  6. 5. Manufacturing Effects on Iron Losses in Electrical Machines

    University essay from KTH/Elektrisk energiomvandling

    Author : Konstantinos Bourchas; [2015]
    Keywords : electrical machine; induction motor; iron losses; relative permeability; guillotine; ber laser; CO2 laser; laser settings; cutting effect; welding; electrical steel.; elektrisk maskin; induktion motor; järnförluster; relativ permeabilitet; giljotin; fiberlaser; CO2-laser; laser inställningar; skäreffekt; svetsning; elektromagnetisk plåt;

    Abstract : In this master thesis, the magnetic properties of SiFe laminations after cutting and welding are studied. The permeability and the iron loss density are investigated since they are critical characteristics for the performance of electrical machines. READ MORE