Aim: The aim of this work is to evaluate the performance of power system stability enhancement of simultaneous AC-DC power systems using Static VAR Compensator (SVC) compared with Thyristor Controlled Series Capacitors (TCSC) by reducing the transmission line oscillations. Materials and Methods: A total number of 14 samples are collected from MATLAB simulation, The first method is Static VAR Compensator (SVC) and the second method is Thyristor controlled series capacitors (TCSC) consists of 7 samples of each. By implementing the static VAR compensation method, the power system stability enhancement is achieved. The G power taken as 0.8. Results: Based on the results obtained it is observed that the SVC based compensation method enhances the optimum level of power system stability around 94.3% when compared to TCSC based compensation method of 81.72%. The significant value obtained is 0.0417 (p<0.05) which is statically significant. Conclusion: It is observed that the SVC technique performed significantly better than the TCSC compensation technique for enhancement of total power system stability and oscillations.