Voltage Stability Enhancement with FACTS devices by using Continuation Power Flow

The rapid increase in load demand has forced power systems to operate close to their critical limitations, which is undesirable for both the economy and the environment. The goal of the power grid is to supply users with a reliable supply of electricity at a safe voltage and frequency. This research provides reactive power support by using static var compensator (SVC) with the help of continuation power flow. To avoid the convergence problem of jacobian, continuation power flow (CPF) has been adopted on IEEE-14 bus system for power flow analysis. After incorporating SVC, the voltage stability or load-ability margin of PV curve or load-ability is enhanced. This research has been validated under the MATLAB environment. The system's stability margin is increased by identifying the weak buses and implementing an efficient shunt compensation (SVC) at the right places. From 0.56 to 0.597, the margin of load-ability has improved.