Sökning: "grid generation"

Visar resultat 1 - 5 av 83 avhandlingar innehållade orden grid generation.

  1. 1. Converter Interfaced Distributed Generation - Grid Interconnection Issues

    Detta är en avhandling från Chalmers University of Technology

    Författare :Fainan Magueed; Chalmers tekniska högskola.; Chalmers University of Technology.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; distributed generation; harmonics; intentional islanding; L-filter; LCL-filter; power quality; strong grid; vector control; voltage dips; voltage regulation; VSC; weak grid;

    Sammanfattning : Distributed generation (DG) with a converter interface to the grid is found in many of the green power resources applications. In this thesis, the control of a voltage source converter (VSC), as the DG front end, is in focus regarding the power quality problems that could appear at the connection point. LÄS MER

  2. 2. Grid reinforcing wind generation

    Detta är en avhandling från Chalmers University of Technology

    Författare :Nayeem Rahmat Ullah; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elkraftteknik; Electric power engineering; variable speed wind turbine; frequency converter; transient stability; long term voltage stability; short term voltage stability;

    Sammanfattning : In this thesis, effects of some grid assisting possibilities that wind turbines could be equipped with, are investigated. The background is that concerns regarding the stability of the already existing power system in the presence of large wind farms have been risen. LÄS MER

  3. 3. Hybrid Grid Generation for Viscous Flow Computations Around Complex Geometries

    Detta är en avhandling från Stockholm : KTH

    Författare :Lars Tysell; KTH.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; grid generation; unstructured grids; hybrid grids; surface grids; three-dimensional grids; adaptive grids; moving grids; grid quality; accuracy; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Sammanfattning : A set of algorithms building a program package for the generation of twoandthree-dimensional unstructured/hybrid grids around complex geometrieshas been developed.The unstructured part of the grid generator is based on the advancing frontalgorithm. LÄS MER

  4. 4. Improved Self-Consumption of Photovoltaic Electricity in Buildings Storage, Curtailment and Grid Simulations

    Detta är en avhandling från Uppsala : Institutionen för teknikvetenskaper

    Författare :Rasmus Luthander; Uppsala universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Photovoltaics; Solar energy; Self-consumption; Grid integration; Distributed generation; Energy storage; Curtailment; Power system; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : The global market for photovoltaics (PV) has increased rapidly: during 2014, 44 times more was installed than in 2004, partly due to a price reduction of 60-70% during the same time period. Economic support schemes that were needed to make PV competitive on the electricity market have gradually decreased and self-consumption of PV electricity is becoming more interesting internationally from an economic perspective. LÄS MER

  5. 5. On Power Electronics Interface for Distributed Generation Applications and its Impact on System Reliability to Customers

    Detta är en avhandling från Chalmers University of Technology

    Författare :Fainan Magueed; Chalmers tekniska högskola.; Chalmers University of Technology.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elkraftteknik; Electric power engineering; distributed generation; harmonics; L-filter; LCL-filter; power quality; strong grid; vector control; voltage dips; voltage regulation; VSC; weak grid;

    Sammanfattning : Distributed generation (DG) is being employed as a means of achieving increased reliability for electrical power systems as regarded by consumers. As the most of DG technologies utilize renewable sources, the power electronic interface plays a vital role to match the characteristics of a DG unit with the grid requirements. LÄS MER