A novel facts-stabilization switched filter-compensator scheme for SMIB-generator system

With the rapid increase in electric energy demand and restrictive limitations on new transmission system development, it has become increasingly crucial to optimally and efficiently utilize the AC system power capacity of all existing transmission network. In the last two decades Flexible AC Transmission has played a significant role in AC grid stabilization and efficient FACTS controlled power flow, from improving the transmission power carrying capacity to enhancing the dynamic voltage regulation of the interconnected AC system as well Voltage and Electromechanical system stability. A Novel Modulated Power Filter Compensation (MPFC) FACTS Scheme developed by Second Author is fully validated in this paper as an effective FACTS device which can be utilized in a number of applications using a flexible Tri-loop control strategy. In this paper the MPFC device along with a novel dynamic control scheme has been used as a stabilization and stability enhancement device for a SMIB system and the dynamic performance of the Single Machine Infinite Bus AC System has been evaluated under different Fault open and short circuit conditions and Load Excursions to validate the stabilizing effectiveness of FACTS MPFC device. Digital Simulation results using the MATLAB-SIMLINK Software Environment are presented under different fault conditions and load changes without and with the MPFC Filter Compensator scheme. MPFC Filter -Compensator effectiveness and its ability to improve stability and power quality is fully validated.