A model of photovoltaic solar farm as a Static Synchronous Compensator (STATCOM) device is presented in this paper where it can operate with voltage and damping controller to increase the power transfer capability of the transmission
network. System stability studies have been analyzed on a grid connected power transmission network with PV solar farm placed at the middle of the transmission line using the MATLAB/Simulink model. Harmonic analysis is carried out by
calculating the value of Total Harmonic Distortion (THD) for the proposed system with and without connecting STATCOM device and the conclusions are made as follows: 1.10MW solar panel which is utilized with the proposed control
strategies without connecting a STATCOM device can produce the power transfer capacity of 799MW and the Total Harmonic Distortion (THD) is obtained to be 9.59%. 2.10MW solar panel which is utilized with the proposed control strategies while connecting a STATCOM device can increase the power transfer capacity to 868MW and the Total Harmonic Distortion (THD) is reduced to be 4.19%