Newton-Raphson power flow models of static VAR compensator

This paper presents two Newton power flow models - the variable shunt susceptance model and the firing-angle model of the static VAR compensator (SVC). Both these models depict the SVC as a variable shunt susceptance. Here, the SVC state variables are combined with the nodal voltage magnitudes and angles of the network for Newton power flow solution. Both these models possess very strong convergence characteristics. Studies carried out on IEEE 14-Bus Test Network are used to compare both the SVC models and to validate their convergence characteristics.