Sökning: "nätet"
Visar resultat 11 - 15 av 70 avhandlingar innehållade ordet nätet.
11. Planning and Operation of Demand-Side Flexibility
Sammanfattning : Power systems are changing with growing penetration of non-dispatchable renewable generation and increased demand of electric energy. More generation, transmission or distribution capacities are needed to balance the varying production and higher consumption. Demand-side flexibility is a potential solutionto tackle those challenges. LÄS MER
12. Adaptive Finite Element Methods for Fluid Structure Interaction Problems with Applications to Human Phonation
Sammanfattning : This work presents a unified framework for numerical solution of Fluid Structure Interaction (FSI) and acoustics problems with focus on human phonation. The Finite Element Method is employed for numerical investigation of partial differential equations that model conservation of momentum and mass. LÄS MER
13. Efficient Integration of Distributed Generation in Electricity Distribution Networks - Voltage Control and Network Design
Sammanfattning : Distributed generation (DG), i.e. generation connected to the low and medium voltage distribution network (DN), has been increasing a lot during recent years. Thus the traditional assumption of a unidirectional power flow and a voltage decrease along the distribution feeders is no longer valid in all operation conditions. LÄS MER
14. Increasing the hosting capacity of distributed energy resources using storage and communication
Sammanfattning : The use of electricity from Distributed Energy Resources like wind and solar powerwill impact the performance of the electricity network and this sets a limit to theamount of such renewables that can be connected. Investment in energy storage andcommunication technologies enables more renewables by operating the networkcloser to its limits. LÄS MER
15. CALLUM Linear Transmitter - Architecture and Circuit Analysis
Sammanfattning : This doctoral dissertation presents a study of linear radio transmitters based on the combined analog locked loop universal modulator (CALLUM) approach. Linear architectures such as CALLUM are very attractive for power-efficient operations, since they have no fundamental limitations prohibiting a 100% efficiency for all envelope levels, without sacrificing the potential of a linear transmission. LÄS MER