Sökning: "rotating machine"
Visar resultat 1 - 5 av 67 avhandlingar innehållade orden rotating machine.
1. Electrical Machine Development : a study of four different machine types from Swedish perspective
Sammanfattning : Development and manufacturing of rotating electrical machines have been essential for the Swedish society and industry for more than a century. The dominating manufacturer has been Asea/ABB, even if a more diversified structure has emerged in recent years. LÄS MER
2. Analysis and Control Aspects of Brushless Induction Machines with Rotating Power Electronic Converters
Sammanfattning : This thesis deals with the steady-state, dynamic and control aspects of new type of brushless configuration of a doubly-fed induction machine in which the slip rings and carbon brushes are replaced by rotating power electronics and a rotating exciter. The aim is to study the stability of this novel configuration of the generator under mechanical and grid disturbances for wind power applications. LÄS MER
3. Modelling, Analysis, and Control Aspects of a Rotating Power Electronic Brushless Doubly-Fed Induction Generator
Sammanfattning : This thesis deals with the modeling, analysis and control of a novel brushlessgenerator for wind power application. The generator is named as rotatingpower electronic brushless doubly-fed induction machine/generator (RPEBDFIM/G).A great advantage of the RPE-BDFIG is that the slip power recoveryis realized in a brushless manner. LÄS MER
4. Study of Induction Machines with Rotating Power Electronic Converter
Sammanfattning : This thesis investigates a novel induction machine topology that uses a rotating power electronic converter. Steady-state and dynamic performance of the topology is studied to understand its operational principle. Furthermore the potential of improving its efficiency and power factor is investigated. LÄS MER
5. Partial Discharges in Large Rotating Machines - Continuous On-line Monitoring and Localisation, Based on a New Developed Technique (InTech)
Sammanfattning : Partial discharges (PD) that originate from dielectrically defective parts of the insulation system result in its degradation, which may ultimately lead to a failure of high voltage apparatus. This has resulted in development of numerous PD measuring techniques. One of the most widespread applications of PD measurement is in rotating machines. LÄS MER