Search for dissertations about: "Lidong Zhang"

Found 2 swedish dissertations containing the words Lidong Zhang.

  1. 1. Three-phase unbalance of voltage dips

    University dissertation from Chalmers University of Technology

    Author : Lidong Zhang; Chalmers tekniska högskola.; Chalmers University of Technology.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power systems; power quality; voltage dips sags ; symmetrical components; characterisation; field measurement; equipment immunity test;

    Abstract : .... READ MORE

  2. 2. Modeling and Control of VSC-HVDC Links Connected to Weak AC Systems

    University dissertation from Stockholm : KTH

    Author : Lidong Zhang; KTH.; [2010]
    Keywords : Control; modeling; multivariable feedback control; HVDC; power systems; stability; subsynchronous torsional interaction; voltage-source converter; weak ac systems;

    Abstract : For high-voltage direct-current (HVDC) transmission, the strength of the ac system is important for normal operation. An ac system can be considered as weak either because its impedance is high or its inertia is low. READ MORE