Security Assessment of an Interconnected Power System Considering Voltage Dependent Loads with Dynamic Tap Changer and Exponential Recovery Loads Using Interline Power Flow Controller (original) (raw)

Power system architecture today are being made more complex and they require more sophisticated new technologies or new devices such as Flexible AC Transmission Systems (FACTS). The limiting factor of the stability and the determination of the transfer limits depend on the load-voltage characteristic since load relief due to the load-voltage dependency results in larger transfer limits.This paper deals with the overview of a control strategies for the security assessment of an interconnected power system coordinated with different loads which can be governed by FACTS especially Interline Power Flow Controller (IPFC) devices when the system is approaching an extreme emergency state. IPFC is employed to enhance power system stability in addition to their main function of power flow control. In this method, the island is prevented from the total loss of supply using few FACTS devices. The optimization process is carried out using bacterial foraging optimization algorithm. The optimized...