Essays about: "railway power system"

Showing result 21 - 25 of 26 essays containing the words railway power system.

  1. 21. Direct generation of low frequency single phase AC for the Railway in Norway and Sweden

    University essay from KTH/Elektriska energisystem

    Author : Carlos Siles Blacutt; [2009]
    Keywords : ;

    Abstract : This thesis deals with direct generated electricity for the Swedish and Norwegian railway systems. The form of renewable energy sources that are presented in this thesis is hydropower and a small part is about wind power. READ MORE

  3. 22. Modeling and simulation of future railways

    University essay from KTH/Elektriska energisystem

    Author : Benjamin Boullanger; [2009]
    Keywords : ;

    Abstract : This master thesis project aims at improving a train power system program which simulates the interaction between a predefined train power supply system structure and a train traffic schedule. The simulator, called TPSS (Train Power System Simulator), is used for training TPSA (Train Power System Approximator) which is included in a larger investment planning program where the welfare of the society is to be maximized. READ MORE

  4. 23. Load flow control and optimization using phase shifting equipment in combination with Banverkets rotating converters

    University essay from KTH/Elektriska energisystem

    Author : Klas Karlsson; [2006]
    Keywords : ;

    Abstract : The purpose of the thesis was to further investigate the possibility to complement the rotary converters with a phase shifting device as a continuation of the work done in the master thesis; Load flow control and optimization of Banverkets 132 kV 16 2/3 Hz high voltage grid. With this modification, rotating converters can be used almost as flexible as static converters. READ MORE

  5. 24. Load flow control and optimization of Banverket’s 132 kV 16 2/3 Hz high voltage grid

    University essay from Institutionen för systemteknik

    Author : Annica Lindén; Anna Ågren; [2005]
    Keywords : 132 kV; rotary converter; load flow; power flow; feeding line; catenary; tap changer; control system; railway; electrification;

    Abstract : The purpose of this thesis was to investigate the possibility of power flow control, on a section of a railway grid fed by rotary converters, using an extra feeding line. Two possible solutions for the power flow control were examined. READ MORE

  6. 25. Legal Framework and Selected Problems of Public Procurement

    University essay from Lunds universitet/Juridiska institutionen

    Author : Martin Waser; [2003]
    Keywords : European Affairs; Law and Political Science;

    Abstract : The aim of this paper is to investigate certain aspects of the legal relationship between the EC and Switzerland in the field of public procurement. Public procurement can be defined as the purchase of goods, services, works and supplies by public authorities and enterprises. READ MORE