The role of the transmission network in the Power
System is to transmit the power generated in the power plants to
the load centers and the interconnected power systems. The
transmission of electric power has to take place in the most
efficient way in addition to providing flexibility in the process.
Flexible A.C. Transmission System (FACTS) promotes the use of
static controllers to enhance the controllability and increase the
power transfer capability. Providing reactive shunt compensation
with shunt-connected capacitors and reactors is a well established
technique to get a better voltage profile in a power system. Shunt
capacitors are inexpensive but lack dynamic capabilities, thus
some form of dynamically controlled reactive power
compensation becomes essential. This feature is provided by
Static VAR Compensator (SVC).