Power flow control in FACTS

The power flow control-using hybrid technique focuses on developing an approach to steady state power flow control of flexible AC transmission systems device equipped power system. In this paper unified power flow controller is used as a phase shifter and series compensator to regulate both angles and magnitude of branch voltages. Hybrid technique is a combination of evolutionary programming and sequential quadratic programming. The hybrid technique is developed in such a way that evolutionary programming is applied as a base level search, which can give a good direction to the optimal global region, and a local search sequential quadratic programming is used as a fine tuning to determine the optimal solution at the final. The algorithm is illustrated by using modified IEEE 30 bus system.