Using FACTS Controllers to Maximize Available Transfer Capability

|This paper concentrates on studying the e ect of SVC and TCSC controllers on the Available Transfer Capability (ATC). Standard voltage collapse techniques are used to determine the ATC of a test system, considering a variety of system limits. Then, based on second-order sensitivity analysis, optimal locations for these particular FACTS controllers are determined; these techniques are compared to eigenvector analysis methodologies that have been successfully used for optimal placement of FACTS controllers. Finally, using proper models of SVC and TCSC controllers, the e ects of these FACTS controllers on the system ATC are studied. The Italian system is used as a test bed, computing the system ATC for a given generation and loading pattern. All realistic control limits, as well as voltage dependent loads, are used in the ATC computation, with and without FACTS controllers.