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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
A. Kavitha
Anna University
Control & Systems Engineering Electrical & Electronics Engineering

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Control of Chaos in a Current Mode Controlled Buck Boost Converter Using Weak Periodic Perturbation Method P. Sriramalakshmi; A. Kavitha; P. Sanjeevikumar; Tole Sutikno; Pandav Kiran Maroti; Vigna K. Ramachandaramurthy
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 8, No 4: December 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.1 KB) | DOI: 10.11591/ijpeds.v8.i4.pp1467-1480

Abstract

This paper analyses the nonlinear phenomena in current mode controlled buck-boost converter. The system undergoes various operating regions whenever there is a change in non linear elements presented in the system as well as in the loads. In this work, inductor current is considered as the reference for analysis.The results show that the converter enters into period-1, periodic doubling and chaotic regions as per the parameter (IL) variations.  The proposed control strategy, weak periodic perturbation (WPP) method tries to stabilize the system from the chaotic behavior.The buck boost converter along with the control system is simulated using MATLAB/SIMULINK software tool and the results are presented.The hardware implementation of the system is done and the results are verified with  the simulation results. It shows that the WPP can transform the system behaviour from the chaotic region to the periodic one. 
Periodic Perturbation Method for Controlling Chaos for a Positive Output DC-DC Luo Converter P. Balamurugan; A. Kavitha; P. Sanjeevikumar; J.L. Febin Daya; Tole Sutikno
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 8, No 2: June 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v8.i2.pp775-784

Abstract

A simple, non-feedback method of controlling chaos is implemented for a DC-DC converter. The weak periodic perturbation (WPP) is the control technique applied to stabilize an unstable orbit in a current-mode controlled Positive Output Luo (POL) DC-DC converter operating in a chaotic regime. With WPP, the operation of the converter is limited to stable period-1 orbit that exists in the original chaotic attractor. The proposed control strategy is implemented using simulations and the results are verified with hardware setup. The experimental results of the converter with WPP control are presented which shows the effectiveness of the control strategy.
Co-Authors J.L. Febin Daya P. Balamurugan P. Sanjeevikumar P. Sriramalakshmi Pandav Kiran Maroti Tole Sutikno Vigna K. Ramachandaramurthy