Abstract
The power system voltage controls are developed by generator excitation control, and power system components such as loads and transformers that generally absorb reactive power. This paper presents implementation of thyristor control series capacitor (TCSC) and auxiliary control that can be deployed in the network to improve the voltage profile of a system-based reactive control. Also, TCSCs can be used as controllable devices in power flow and voltage control devices. Since voltage magnitudes in a system are closely related to the ability of various components to absorb or supply reactive power, TCSC with auxiliary controls are used for transients corresponding to rotor relative motion. Two-area system is used to examine the feasibility of the proposed TCSC, with auxiliary control to improve the grid voltage profile, and network performance. The simulation results prove the effectiveness of the proposed method for voltage profile improvement and network performance.