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    Predictive method for improving SVC speed in electric arc furnace compensation

    , Article IEEE Transactions on Power Delivery ; Volume 22, Issue 1 , 2007 , Pages 732-734 ; 08858977 (ISSN) Samet, H ; Parniani, M ; Sharif University of Technology
    The ability of static VAr compensators (SVC) to reduce the flicker caused by electric arc furnaces and other variable VAr loads depends on their speed, which is limited by delays in reactive power measurement and thyristor ignition. In this paper, a predictive method is proposed to compensate the delay time and, hence, to improve the SVC performance. Previous samples of the load reactive power are used to predict its future values. Predicted VAr is then applied as a reference for reactive power compensation. © 2006 IEEE  

    Assessment study of shunt FACTS devices for improving dynamic behavior of induction motors

    , Article Sixth International Conference on Power Electronics and Drive Systems, PEDS 2005, Kualu Lumpur, 28 November 2005 through 1 December 2005 ; Volume 2 , 2005 , Pages 1352-1355 ; 0780392965 (ISBN); 9780780392960 (ISBN) Hedayati, M ; Oraee, H ; Sharif University of Technology
    An assessment study of two different shunt FACTS devices for compensating disturbances due to voltage variation in power systems is presented in this paper. Namely, Static Compensator (STATCOM) and Static Var Compensator (SVC) are Considered in this study. Eigen Value analysis and nonlinear time domain simulations for starting motor, motor in load varying state and short circuit on motor terminals show that STATCOM DC Voltage regulation has a better performance Compared to that of SVC. The result that will be presented in the paper will prove the superiorly of STATCOM over SVC in increasing motor speeding up and improving system voltage profile particularly at starting. © 2005 IEEE