Publicado en 3C Tecnología. Special Issue – January 2019
Power transmission capability of a transmission line (TL) depends upon the impedance of the TL, the magnitude and the phase angle difference of the end voltages. Series capacitor largely employed in the transmission lines to increase the transfer capability but create instability problems. Flexible alternating current transmission systems (FACTs) enhance the power transfer through the existing transmission lines with stability intact. Thyristor controlled series compensation (TCSC) is considered in this paper. Impedance of the transmission line is regulated by changing the firing angle of the thyristor. A 500kV transmission line shunted with TCSC is dynamically implemented in Matlab/Simulink and tested for different sending end voltage and, by changing the impedance of line. Results show the significance of designed control under transient conditions of power system.
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Flexible alternating current transmission systems (FACTS) devices; transmission lines; thyristor controlled series compensation (TCSC); stability enhancement.