Performance Fuzzy Logic Control to Minimize Output Voltage Ripple and Balanced Current Distribution of DC-DC Converters in Parallel Non-Identical

Bambang Suprianto, Mochamad Ashari, Mauridhi Hery Purnomo

Abstract


Analysis of DC-DC converters are arranged in parallel with the inductor parameters which are different from what discussed in this paper. Buck DC-DC converter using non-identical model, that is different in the value of inductance which is L1 ≠ L2 ≠ L3. Research techniques are taken from the difference of current flows of each converter i.e. I1-I2 and I1- I3 and the reference current is I1. This current difference results are used as input controller. PID and Fuzzy Inference System with 5 gbell membership function are used as a controller. The results of this study indicate a significant system performance. Output voltage ripple is 10 mV with the total output current is 63.7 Ampere. Each DC-DC converter provides a current of contribution to the load 21.28 Ampere. The difference of the current distribution of each converter module range is 1mA - 4mA RMS (Root Mean Square) using PID control, while using Fuzzy Logic Control for differences in the distribution of current is 0.1 mA RMS and the output voltage is 48 volt. Fuzzy Logic Control performance has shown an improvement of control systems to reduce the output voltage ripple and the ability to share load current equally into each DC-DC converter.

Keywords


DC-DC Converter in parallel; Currentsharing loop; Fuzzy Logic Control (FLC)

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References


V. J. Thottuvelil and G. C. Verghese, 1998, “Analysis and control design of paralleled DC/DC converters with current sharing”, IEEE Trans. on Power Electronics, Vol. 13, No. 4, pp. 635-644.

M. Milanovic and Dusan G, “Buck converter digitally controlled by a fuzzy state-space controller”. HAIT Journal of Science and Engineering B, Vol. 2, Issue 5-6, pp. 638-654 Copyright ©2005 Holon Academic Institute of Technology.

B. Tomescu, 2001, “On the use of fuzzy logic to control paralleled DC-DC converters”, Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Electrical and Computer Engineering, Blacksburg, Virginia.

S. Luo, Z. Ye, R.-L. Lin, and F. C. Lee, 1999, “A classification and evaluation of paralleling methods for power supply modules”, Proc. IEEE Power Electron. Specialists Conf. Record, pp. 901–908.

B. Choi, “Comparative study on paralleling schemes of converter modules for distributed power applications”, IEEE Trans. on Ind. Electronics, vol. 45, no. 2, pp. 194–199, March 1998.

Siri. K, Lee. C.Q, Wu. T.E., 1992, “Current distribution controlfor parallel connected converter”, IEEE Transactions on Aerospace and Electronic Systems, Vol. 28, No.3.

Mattavelli. P, L. Rossetto, G. Spiazzi, and P.Tenti, 1995, “General Purpose fuzzy controller for DC/DC converters.” IEEE PECS Rec., pp. 723-730.

Wing-Chi So, Chi K. Tse, Yim-Shu Lee, 1996, “Development of a fuzzy logic controller for DC/DC converters: design, computer simulation, and experimental evaluation”, IEEE Transactions on Power Electronics, Vol.11, No. 1.

Y. Huang and C. K. Tse, 2007, “Classification of parallel DC/DC converters part I: Circuits theory”, IEEE, pp. 1010-1013.




DOI: http://dx.doi.org/10.12962/j20882033.v21i1.28

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