Sökning: "Power management"

Visar resultat 16 - 20 av 723 avhandlingar innehållade orden Power management.

1. 16. On optimal hydropower bidding in systems with wind power : Modeling the impact of wind power on power markets

   Författare :Magnus Olsson; Lennart Söder; Stein-Erik Fleten; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydropower; wind power; stochastic modeling; optimization; Electric power engineering; Elkraftteknik;

   Sammanfattning : The introduction of large amounts of wind power into power systems will increase the production uncertainties due to unforeseen wind power production variations. This will have a significant impact on the required balance management quantities. LÄS MER

3. 17. Strategisk förändring, makt och kunskap : om disciplinering och motstånd i tidningsföretag

   Författare :Stefan Sveningsson; Företagsekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Management of enterprises; newspaper companies; isomorfism; disciplinary power; knowledge; Strategy; strategic change; Företagsledning; management;

   Sammanfattning : The dissertation examines power and knowledge in strategic changes. It is a study of changes in three Swedish newspaper companies which developed from single-business to multi-business corporations. It is suggested that this transformation was based upon the establishment and reproduction of a new knowledge formation. LÄS MER

4. 18. May the power be with you : managing power-performance tradeoffs in cloud data centers

   Författare :Jakub Krzywda; Erik Elmroth; Per-Olov Östberg; Ahmed Ali-Eldin; Tarek F. Abdelzaher; Umeå universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cloud computing; data centers; power efficiency; power budgeting; application performance;

   Sammanfattning : The overall goal of the work presented in this thesis was to find ways of managing power-performance tradeoffs in cloud data centers. To this end, the relationships between the power consumption of data center servers and the performance of applications hosted in data centers are analyzed, models that capture these relationships are developed, and controllers to optimize the use of data center infrastructures are proposed. LÄS MER

5. 19. On the Dynamics and Statics of Power System Operation : Optimal Utilization of FACTS Devicesand Management of Wind Power Uncertainty

   Författare :Amin Nasri; Mehrdad Ghandhari; Zhang Xiao-Ping; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trajectory sensitivity analysis TSA ; transient stability; small signal stability; flexible AC transmission system FACTS devices; critical clearing time CCT ; optimal power flow OPF ; network-constrained ac unit commitment ac-UC ; wind power uncertainty; wind power spillage; stochastic programming; Benders’ decomposition; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Nowadays, power systems are dealing with some new challenges raisedby the major changes that have been taken place since 80’s, e.g., deregu-lation in electricity markets, significant increase of electricity demands andmore recently large-scale integration of renewable energy resources such aswind power. LÄS MER

7. 20. Data Importance in Power System Asset Management

   Författare :Wadih Naim; Patrik Hilber; Miroslav Begovic; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Data availability; data quality; asset management; power systems; maintenance optimization; Datatillgänglighet; datakvalitet; tillgångsförvaltning; kraftsystem; underhållsoptimering; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : The current shift towards a higher degree of data-driven decision making in power system asset management highlights the importance of asset data. This thesis identifies, investigates, and proposes methods for data-related research gaps that are encountered by asset managers. These research gaps are in data availability and data quality. LÄS MER