Search for dissertations about: "energy efficiency and electrical machines"
Showing result 1 - 5 of 38 swedish dissertations containing the words energy efficiency and electrical machines.
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1. Heat-transfer simulations applied to electrical machines
Abstract : Electrification and energy efficiency are two important aspects in present scenarios describing a sustainable future. Electric motors constitute a large fractionof industry’s electricity demand today, and it is expected to remain high inthe future. READ MORE
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2. Numerical predictions of heat-transfer applied to electrical machines
Abstract : In order to meet the need for increased electrification, and at the same time reduce the total demand for electric energy, behavior change and technological innovation is needed. Over the decades power density of electric motors have increased, leading to increased demands on the cooling system design and performance. READ MORE
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3. Iron Losses in Electrical Machines - Influence of Material Properties, Manufacturing Processes, and Inverter Operation
Abstract : As the major electricity consumer, electrical machines play a key role for global energy savings. Machine manufacturers put considerable efforts into the development of more efficient electrical machines for loss reduction and higher power density achievements. READ MORE
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4. High Performance Cooling of Traction Brushless Machines
Abstract : The work presented in this thesis covers several aspects of traction electric drive system design. Particular attention is given to the traction electrical machine with focus on the cooling solution, thermal modelling and testing. READ MORE
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5. Energy Efficiency of an Electric Vehicle Propulsion Inverter Using Various Semiconductor Technologies
Abstract : In this Licentiate thesis, various solutions to improve the efficiency in the electrical vehicledrive drive line such as in the propulsion inverter and in the electric machine, are proposedand their benefits are quantified from an energy efficiency point of view. The efficiencyanalysis is based on modeling of a power electronics inverter, an electric machine and abattery in various drive cycles of an electric vehicle. READ MORE