University of Tasmania, Australia

Investigation of FACT Devices for Voltage Quality Enhancement in Power System

Flexible AC Transmission System (FACTS) devices are considered as efficient devices for mitigating power quality related issues associated with wind energy systems. However, as number of FACTS devices installed in the system increases, the overall system sag performance due to faults or load variations could significantly change depending on the type of the device used. In order to assess this change in sag performance in power systems, the classical fault calculation procedure should be examined and modified to incorporate the effects of such devices on bus voltages.

This project will investigate new approaches for fault calculation and voltage sag analysis in the presence of FACTS. Different types and topologies of FACTS devices will be considered in this study to investigate their effect on the voltage profile. In the investigation, new and accurate models of FACTS and will be explored and modified control strategies for voltage quality improvement will be proposed.