Search for dissertations about: "active power"

Showing result 1 - 5 of 405 swedish dissertations containing the words active power.

  1. 1. Power-generation, Power-electronics and Power-systems issues of Power Converters for Photovoltaic Applications

    University dissertation from Chalmers University of Technology

    Author : Björn Lindgren; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; bang-bang control; current control; embedded generation; photovoltaic; power quality; power systems; shading tolerance; solar power generation;

    Abstract : The thesis deals with issues related to solar energy systems, or more specifically, the electric systems of photovoltaic (PV) installations. Initially aspects of planning and estimating the performance of a PV-installation are considered. READ MORE

  2. 2. On harmonic distortion in power systems

    University dissertation from Chalmers University of Technology

    Author : Johan Lundquist; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; harmonic distortion; power sustem monitoring; rectifiers; drives; converters; voltage notching; active power; losses; harmonic propagation; resonance; harmonic filter; unbalance;

    Abstract : .... READ MORE

  3. 3. Voltage collapse in power systems : analysis of component related phenomena using a power system model

    University dissertation from Chalmers University of Technology

    Author : Magnus Gustafsson; Niclas Krantz; Chalmers tekniska högskola.; Chalmers University of Technology.; [1995]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage stability; voltage collapse; voltage instability; on-load tap changer; OLTC; armature current limiter; field current limiter; load modelling; dynamic load; induction motor load; active power; reactive power; power system model;

    Abstract : .... READ MORE

  4. 4. Power System Damping - Structural Aspects of Controlling Active Power

    University dissertation from IEA, LTH, Box 118, SE-221 00 Lund, Sweden

    Author : Olof Samuelsson; Lunds universitet.; Lund University.; [1997]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics and Electrical technology; controller interaction; mode controllability; mode observability; mechanical equivalent; linear differential-algebraic equations; modal analysis; active power; power system damping; electro-mechanical oscillations; Elektronik och elektroteknik; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : Popular Abstract in Swedish Ekonomiska och miljömässiga problem gör det svårt att bygga ut kraftledningsnätet i samma takt som efterfrågan på elenergi ökar. Ett alternativ är att öka belastningen av befintliga kraftledningar på bekostnad av de säkerhetsmarginaler som finns. READ MORE

  5. 5. Power System Stability Enhancement Using Shunt-connected Power Electronic Devices with Active Power Injection Capability

    University dissertation from Chalmers University of Technology

    Author : Mebtu Beza; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adaptive estimation; energy storage; FACTS; Power Oscillation Damping POD ; Recursive Least Square RLS ; Static Synchronous Compensator STATCOM ; Static Var Compensator SVC ; Transient Stability Enhancement TSE ;

    Abstract : Power electronic devices such as Flexible AC Transmission Systems (FACTS), both in shunt and series configuration, are widely used in the power system for power flow control, to increase the loading capability of an existing line and to increase the security of the system by enhancing its transient stability. Among the shunt-connected FACTS controllers family, the Static Synchronous Compensator (STATCOM) and the Static Var Compensator (SVC) are two key devices for reinforcing the stability of the AC power system. READ MORE