Sökning: "current generator"
Visar resultat 1 - 5 av 89 avhandlingar innehållade orden current generator.
1. Marine Current Energy Conversion
Sammanfattning : Marine currents, i.e. water currents in oceans and rivers, constitute a large renewable energy resource. This thesis presents research done on the subject of marine current energy conversion in a broad sense. LÄS MER
2. Voltage collapse in power systems : the influence of generator current limiters, on-load tap changers and load dynamics
Sammanfattning : .... LÄS MER
3. Low Speed Energy Conversion from Marine Currents
Sammanfattning : The focus of this thesis is research on the performance of very low speed direct drive permanent magnet generators for energy conversion from marine and tidal currents. Various aspects involved in the design of these generators and their electromagnetic modelling using the finite element simulations are presented. LÄS MER
4. Long-term Voltage Stability in Power Systems - Alleviating the Impact of Generator Current Limiters
Sammanfattning : The main issues in this dissertation are the behaviour of current limiters protecting synchronous generators, and the interactions that occur with other components in the power system during a voltage instability. The importance of these limiters for the voltage stability is shown both in the analysis of small models and in the simulations of larger networks. LÄS MER
5. Highly-Efficient Energy Harvesting Interfaces for Implantable Biosensors
Sammanfattning : Energy harvesting is identified as an alternative solution for powering implantable biosensors. It can potentially enable the development of self-powered implants if the harvested energy is properly handled. This development implies that batteries, which impose many limitations, are replaced by miniature harvesting devices. LÄS MER