The optimal location of shunt compensators to improve voltage stability and branch flows in Nigeria?s 330kv network was investigated. The Nigerian bus system which operates at 330kV with 41 buses was evaluated for voltage drop index at load buses when active power value is varied at constant reactive power values. With the power varied from a base case through five steps of 10% increment, the result of the total voltage drop index ranked Yola, Omotosho and Maiduguri in descending order as the optimal locations for shunt compensation. Aided with this ranking, load flow analyses were executed for the individual and simultaneous shunt compensation at these buses. Each of the compensated cases, when compared with the base case bus, the tabulated load flow and bar chart results showed significant improvement due to the compensations. However, the singular and simultaneous compensation involving two of these three buses did not eliminate bus voltage violation in other buses as it is supposed to be. The best steady state operation recorded occurred when the trio of buses at Maiduguri. Omotosho and Yola were all shunt compensated with appropriately sized Static var compensation (SVC) for which no network bus had any form of bus voltage violation.
FACTS, TCSC, SVC, Voltage profile
AMEH B V , EZECHUKWU A O "LOCATION OF SHUNT COMPENSATION DEVICE IN NIGERIAN POWER SYSTEM" Iconic Research And Engineering Journals Volume 2 Issue 3 2018 Page 32-42
AMEH B V , EZECHUKWU A O "LOCATION OF SHUNT COMPENSATION DEVICE IN NIGERIAN POWER SYSTEM" Iconic Research And Engineering Journals, 2(3)