Sökning: "FACTS."
Visar resultat 6 - 10 av 367 avhandlingar innehållade ordet FACTS..
6. Power Electronics for Mitigation of Voltage Sags and Improved Control of AC Power Systems
Sammanfattning : The thesis deals with the application of compensators andswitches based on power electronics in AC transmission anddistribution systems. The objective of the studieddevices/equipment is the power flow and voltage control intransmission systems and the mitigation of voltage sags andmomentary interruptions to critical loads in distributionsystems. LÄS MER
7. Synchronous Voltage Reversal Control of Thyristor Controlled Series Capacitor
Sammanfattning : Series compensation of transmission lines is an effectiveand cheap method of improving the power transmission systemperformance. Series capacitors virtually reduces the length ofthe line making it easier to keep all parts of the power systemrunning in synchronism and to maintain a constant voltage levelthroughout the system. LÄS MER
8. On control of cascaded H-bridge converters for STATCOM applications
Sammanfattning : Cascaded H-bridge (CHB) converters are today considered the industrial standard for STATCOM applications, mainly due to their small footprint, high achievable voltage levels, modularity and reduced losses. However, there are still areas of research that need to be investigated in order to improve the performance and the operational range of this converter topology for grid-applications. LÄS MER
9. Operation and control of cascaded H-bridge converter for STATCOM application
Sammanfattning : In the last decade, particular attention has been paid to the use of Modular Multilevel Converters(MMC) for grid applications. In particular, for STATCOM applications the phase leg ofthe converter is constituted by a number of single-phase full-bridge converters connected incascade (here named Cascaded H-Bridge, CHB, converter). LÄS MER
10. Stödbevisning i brottmål
Sammanfattning : Corroborating evidence is a modern evidence law concept used in furtherance of the administration of justice. The exact meaning of the term is, however, unclear, which is why the concept can be described as both vague and ambiguous. Accordingly, the aim of this thesis was to examine this type of evidence with the help of functional analysis. LÄS MER