Validity of a Linear Model of a Thyristor- Controlled Series Capacitor for Dynamic Simulations
نویسندگان
چکیده
This paper describes a method to construct a linear model of a Thyristor-Controlled Series Capacitor (TCSC) by analyzing its time domain response when it is disturbed. All simulations are done in instantaneous value mode. With this technique, low-frequency dynamic behaviors of the TCSC are included in the linear model for both time domain simulations and linear analysis of the power system. However, line ar analysis is not shown in the paper. The linear model is validated with the original TCSCmodel in different time simulation cases including small and large disturbances. The model is also validated in another steady-state than the one used for the identification of the linear model. The studied power system is a simplified model of the TCSC-compensated south-north link in Brazil. By using the linear model, the computing time can be reduced significantly compared to simulations with the original TCSC-model, maintaining the dominant behaviors of the TCSC.
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