Sökning: "permanent-magnet machines"
Visar resultat 21 - 25 av 45 avhandlingar innehållade orden permanent-magnet machines.
21. On the Design of Electric Traction Machines : Design and Analysis of an Interior Permanent Magnet Synchronous Machine for Heavy Commercial Vehicles
Sammanfattning : Recent years have proven the benefits of electrifying the road bound vehicle fleet. With new components entering, the general understanding as well as the components as such needs to be improved. LÄS MER
22. High Performance Cooling of Traction Brushless Machines
Sammanfattning : 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. LÄS MER
23. Improving the functionality of synchronous machines using power electronics
Sammanfattning : With the advent of modern power electronics there is reason to explore what can be achieved when it is applied to a mature technology like synchronous machines. In this text several concepts will be presented on how it is possible to control forces and how to get better performance out of synchronous machines by using power electronics. LÄS MER
24. Investigation of Issues Related to Electrical Efficiency Improvements of Pump and Fan Drives in Buildings
Sammanfattning : This thesis deals with issues related to efficiency of building related pump and fan drive systems. Different motor technologies are analyzed and a more detailed study oninverter fed Induction Machines (IM) is presented. LÄS MER
25. In the Air Gap of Linear Generators for Wave Power
Sammanfattning : Wave power conversion is one type of renewable electricity generation. Within wave power, there are many different concepts, whereof some utilizes linear generators for converting the energy in the ocean waves into electricity. LÄS MER