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Stability Analysis of Series Connected SEPICs

Author(s): Arivukkannu Ezhilarasi | Muthiah Ramaswamy

Journal: International Journal of Computer Science Issues
ISSN 1694-0784

Volume: 9;
Issue: 6;
Start page: 338;
Date: 2012;
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Keywords: SEPIC | stability | compensator | average voltage sharing | IJCSI

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.
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