Hima Bindu 01 01 In an ac transmission line it is possible to control the active and reactive power transfer independently by adding series compensation voltage in both magnitude and phase angle to the line A transmission line is connected in series to the Static Synchronous Series Compensator and a solidstate voltage source inverter with associated transformer In line series a SSSC imposes a variable amplitude nearly sinusoidal voltage This injected voltage creates seriatim inductive or capacitive reactance with the line as it is approximately 90 from the line current The modulated reactance produces this simulated varying reactance which modulates the electric power carried through the transmission line This focus on preliminary research for controller design motivated this study to attempt further development of the SSSC and VSC models Copyright (c) Journal of Engineering Technology and Sciences. All rights reserved 2026