Examination and Comparison of Thyristor and Gate-Controlled Series Capacitors Performance for the Voltage Stabilization of Sensitive Loads

This paper investigates and analyzes a new application of two types of controllable series compensators, GCSC and TCSC, in fixing a bus voltage feeding a sensitive load. After introducing the operation principles of the GCSC and TCSC, it is revealed that the studied system provides good performance neither without compensation nor with series compensation with a fixed capacitor. Then, it is shown that if controllable compensators are used, it is possible to prevent voltage variations of the bus that feeds the sensitive load. Finally, a comparison is made between the rating of the components of the GCSC and TCSC, which results indicate the superiority of the former. In this study, all time-domain simulations are done using MATLAB/Simulink.