Search for dissertations about: "IEA"
Showing result 16 - 20 of 44 swedish dissertations containing the word IEA.
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16. Thermal Design of Electrical Machines - Investigation and Evaluation of Cooling Performances
Abstract : This Thesis focuses on thermal design of permanent magnet synchronous electrical machines (PMSM) used in hybrid vehicles (HEVs) or zero emission vehicles (ZEVs). Electrical machines in such applications are usually designed with high power density requirements but within limited spaces, which lead to high rate of heat generation but low rate of heat dissipation. READ MORE
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17. On the Verifiability of the Activated Sludge System Dynamics
Abstract : Wastewater treatment processes are inherently dynamic because of variations in the influent flow rate, concentration, and composition. The adaptive behaviour of the microorganisms further emphasizes this fact. Mathematical models and computer simulations are essential to describe, predict, and control the complicated interactions of the processes. READ MORE
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18. Improved Models for DC-DC Converters
Abstract : To obtain high performance control of a dc-dc converter, a good model of the converter is needed. It is suitable to consider the load to be included in the converter model since it usually affects the dynamics. The load is often the most variable part of this system. READ MORE
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19. Analysing hybrid drive system topologies
Abstract : In this thesis a simulation model is presented that enables a comparison of different hybrid topologies, with respect to fuel consumption, emissions and performance. The obtained results stress the properties of the different topologies and form a foundation for the choice of hybrid topology. READ MORE
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20. Control of a Multi-terminal VSC-HVDC system - A general Control System Structure
Abstract : Environmental impact and security of supply has fuelled a shift in the power mix of power systems today. Traditionally used fossil fuel gives more and more space to the development of renewables in an effort to comply with strict international standards regarding CO2 emissions and secure energy supply. READ MORE