2011 : FACTS devices allocation for preventive/corrective control against voltage collapse under deregulated power system

Prof. Dr. Ir. Soeprijanto M.Sc.
Ir. Sri Pingit Wulandari M.Si.
Dr.Eng. Ardyono Priyadi ST, M.Eng
Dr. Eng. Rony Seto Wibowo ST., MT.


In this paper, an approach for optimal allocation of flexible AC transmission system (FACTS) devices under deregulated power systems is presented. The approach considers system operation under normal and contingency states along with their related probabilities to occur. For each state, FACTS devices are optimally utilized to minimize operating cost. If a contingency occurs, preventive/corrective control strategy is applied to prevent voltage collapse as well as to relieve transmission congestion. During corrective control, fast control action is utilized while during preventive control, both fast and slow control actions are employed. The objective of normal state is to maximize social welfare while the objectives of contingency states are to maximize social welfare and to minimize compensations paid for generations re-scheduling and load shedding. The overall problem is formulated as a mixed integer nonlinear …