Cover
Vol. 2 No. 1 (2006)

Published: July 31, 2006

Pages: 54-61

Original Article

ANALYSIS AND CONTROL DESIGN OF PARALLEL PWM DC/DC BUCK CONVERTER

Abstract

This paper presents a proposed configuration of paralleling scheme PWM DC/DC buck converter. The topological structure and operation principles are presented. A Bode plot diagram technique is used to study the stability of the scheme for different values of controller parameters and with a number of parallel modules. It is found that the results are confidence, and the proposed scheme can be used in high power applications by increasing the number of parallel modules.

References

  1. B. Choi, Comparative Study on Parallel Schemes of Converter Modules for Distributed Power Applications", IEEE Traus. on Power Electronics, Vol. 45, No. 2, April 1998, pp. 194-199.
  2. A. J. Nascimento Jr, and V. J. Farias, "PWM Control for Parallel Converter in the Current Sharing Mode", COBEP 1999, 5 th Brazilian Power Electronics Conference.
  3. M. L. Heldwein, A. F. DE Souza, and I. Barbi, A Simple Control Strategy Applied to Three Phase Rectifier Units for Telecommunication applications Using Single-Phase Rectifier Modules", IEEE PESC 1999, pp. 795-800.
  4. V. J. Thottuvelil and G. C. Verghese, " Analysis and Control Design of Parallel DC/DC Converters with Current Sharing", IEEE Trans. on Power Electronics, Vol. 13, No. 4 July 1998, pp. 635-644,
  5. P. T. Krcin, "Elements of Power Electronics", New York, Oxford University Press, 2001, pp. 119-157, 596-677.
  6. S. S. Alsheraidah, A New PW DC/DC Buck Converter with Protection Loop," Technical Researchs Journal, Foundation of Technical Education, Vol. 1, No. 2., 2002, pp. 63-74,
  7. J. L. Boost and P. D. Ziogas, "Numerical Methods and Analysis", McGraw-Hill, Inc., 1992, pp. 49-97, and 419-489.