Comparative Study of Voltage Control Methods in Power Flow Analysis

This paper presents, a comparative study with different methods to improve power quality and voltage control at different buses of the electrical power systems. That becoming increasingly concerned about the power quality of load flow analysis. The term voltage control in load flow analysis has become one of the most prolific useable in the power industry nowadays. In this paper, we have discussed the challenges against voltage control for power quality improvement and the importance of Reactive Power management in this process. This paper shows major types of voltage source converter- based FACTS devices can voltage control and stability ratio, damping out inter-area oscillations successfully. The importance of various FACTS devices in reactive power control has been discussed. STATCOM undoubtedly has an upper hand over other FACTS devices like SVC and SSSC voltage control. Load flow analysis of IEEE 14 bus and 30 bus system has been carried out using Newton-Rephson Method which depends on no. of iterations with and without STATCOM. The study of Load flow analysis between with and without STATCOM, has more improvement in voltage control with the use of STATCOM in the system.