Closed-Loop Control of Facts Devices in Power System

This paper presents the improvement of reactive power and voltage in fourteen bus system using TCTC and STATCOM. Flexible AC transmission systems (FACTS) are the option to mitigate the problem of overloaded lines due to increased electric power transmission by controlling power flows. In this work, combined controller based on optimal power flow (OPF) with multiple objectives is derived in order to provide secure transmission and reduces transmission losses. Static compensator and thyristor-controlled tap changer are two such compensators belonging to FACTS devices are used in this work. The fourteen bus system with closed-loop-controlled STATCOM and TCTC is modeled and simulated.