Examining the effects of utilizing “D-STATCOM and D-SVC” in the grid power connected to the wind farm

Abstract

Networks are becoming more sophisticated with time, and stability issues have become more prevalent. In general, the problem of voltage instability increases as various energy sources, such as solar, wind, etc., are connected to the grid. The most notable issue is grid control. Controlling the flow of reactive power in the grid is essential for optimizing power system performance. When a system fails, is overloaded, and the voltage varies, unbalanced reactive power occurs. Connecting a device to the transmission line that can inject or absorb reactive power, depending on the system requirements, can restore reactive power balance. D-FACTS (Distributed Flexible AC Transmission System) is one of the most useful sources of reactive power. Distributed Static Var Compensation (D-SVC) and Distributed Static Synchronous Compensation (D-STATCOM) are the famous compensation methods of the D-FACTS families. The influence of D-SVC and D-STATCOM on increasing the dynamic voltage stability of distribution networks with distributed wind generation and variable load is investigated in this paper. Simulations using MATLAB/Simulink were used to observe the dynamic behavior of both devices. This article provides a comparison of simulation results between grids without D-FACTS and grids with D-FACTS.