Stability Analysis of Series Connected SEPICs
The paper pioneers to introduce a feedback compensator network with a view to allow a stable operation of a series connected SEPIC system. It avails the role of a small signal model to predict its steady state stability and includes the use of compensators to ensure its stable operation. The ratio of its output to duty cycle transfer function characterizes its closed loop performance and suggests measures to bring the Eigen values of the characteristic equation to the left half of the S plane. The scheme incorporates the principle of average voltage sharing methodology to offer a stable servo and regulatory results over the range of operating loads. The strategy examined using MATLAB based Root locus and Bode plot analysis orchestrates its viability and utility in a practical environment.
Keywords: SEPIC, stability, compensator, average voltage sharing
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ABOUT THE AUTHORS
Arivukkannu Ezhilarasi
Ezhilarasi. A obtained her Bachelor’s degree in Electrical and Electronics Engineering from Annamalai University in 1998 and her Masters degree in Power Systems Engineering from Annamalai University in 2005. Her investigations find a place in a list of International Journals. She is on her way to obtaining her Doctoral Degree in Electrical Engineering. Her areas of interest include Power Electronics, Solid State Drives and Intelligent control techniques. She spans twelve years of teaching experience and is currently an Assistant Professor in the Department of Electrical Engineering at Annamalai University.
Muthiah Ramaswamy
Ramaswamy. M obtained his Bachelors degree in Electrical and Electronics Engineering from Madurai Kamaraj University in 1985, Masters Degree in Power Systems Engineering in 1990 and Doctoral degree in Electrical Engineering in 2007 from Annamalai University. He is currently serving as a Professor in the Department of Electrical Engineering at Annamalai University. He has a number of publications in National and International journals to his credit. His areas of interest include Power System Voltage stability studies , Power Electronics, Solid State Drives and HVDC transmission.
Arivukkannu Ezhilarasi
Ezhilarasi. A obtained her Bachelor’s degree in Electrical and Electronics Engineering from Annamalai University in 1998 and her Masters degree in Power Systems Engineering from Annamalai University in 2005. Her investigations find a place in a list of International Journals. She is on her way to obtaining her Doctoral Degree in Electrical Engineering. Her areas of interest include Power Electronics, Solid State Drives and Intelligent control techniques. She spans twelve years of teaching experience and is currently an Assistant Professor in the Department of Electrical Engineering at Annamalai University.
Muthiah Ramaswamy
Ramaswamy. M obtained his Bachelors degree in Electrical and Electronics Engineering from Madurai Kamaraj University in 1985, Masters Degree in Power Systems Engineering in 1990 and Doctoral degree in Electrical Engineering in 2007 from Annamalai University. He is currently serving as a Professor in the Department of Electrical Engineering at Annamalai University. He has a number of publications in National and International journals to his credit. His areas of interest include Power System Voltage stability studies , Power Electronics, Solid State Drives and HVDC transmission.
