Placement Static Var Compensator (SVC) for Improving Voltage Stability Based on Sensitivity Analysis : A Case Study Of 500 KV Java-Bali Electrical Power System

Demand for electricity is increasing rapidly, the consequence of this is a threat to the stability of the electrical system, one of which is the voltage stability. FACTS or Flexible Alternating Current Transmission System is electronic equipment that is able to regulate electric power transmission that can be used to overcome stability problems. This research will analyze the use of Static Var Compensator (SVC) as one of the equipment from FACTS to overcome the stability of the most critical buses by using the 500 kV Java-Bali electricity system using PSAT. Then the stability of the voltage is observed using the help of the PV curve which can show the value of the voltage conditions in each operating condition. SVC installation on the Java-Bali electricity system of 500 kV obtained an increase in length λ on the Pedan Bus which is equal to 0.233 p.u. (6.01) then on the Tasikmalaya Bus the addition of length λ is 0.0986 p.u. (2.55%) and on the Mandarican Bus the addition of length λ is 0.1228 p.u. (3.17%).