Sökning: "järnförluster"
Visar resultat 1 - 5 av 6 uppsatser innehållade ordet järnförluster.
1. Development of an Investigation Method to Analyse Effect of Laser Cutting on Iron Losses in an Electric Machine
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : 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. LÄS MER
2. Boost Converter Inductor Design for High-Power Fuel Cells Using Pareto Optimisation for Single and Coupled Cores
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : 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. LÄS MER
3. Sensorless algorithm for synchronous machines using current oversampling and PWM harmonics
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : 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. LÄS MER
4. Study of Analytical Models for Harmonic Losses Calculations in Traction Induction Motors
Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)Sammanfattning : 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. LÄS MER
5. Manufacturing Effects on Iron Losses in Electrical Machines
Master-uppsats, KTH/Elektrisk energiomvandlingSammanfattning : 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. LÄS MER