Development of an efficient voltage regulation mechanism for switched capacitor converter with exponential gain

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.270316

Keywords:

DC-DC converter, switched capacitor, power conditioning, inductor-less converter, voltage multiplier

Abstract

The compact switched-capacitor converter with exponential gain and modular design has been adopted in this paper. Two approaches have been applied to improve the efficiency by providing multiple no-load voltages. The first modifies the switching strategy to bypass the gain of one or more stages. The second introduces modified design that provide additional no-load voltages through alternative current paths. The voltage regulation is implemented by two control loops: The outer loop is designed to produce the minimum feasible no-load voltage and the inner loop adjusts the duty ratio of the switching signals to regulate the voltage to meet the desired reference. Switched capacitor converters have been used as voltage multipliers with constant voltage gain. The efficiency of a switched capacitor converter depends on the ratio between regulated to unregulated output voltage. Therefore, output voltage adjustment of these converters causes a significant efficiency reduction. By providing multiple no-load voltages within the output voltage range the efficiency of the switched capacitor converter can be improved. The proposed design has been applied to a three-stage converter to provide six no-load voltages. Simulation results demonstrate that the average efficiency over the entire output voltage range is more than 90 % of its maximum efficiency of the unregulated switched capacitor converter which reflects the effectiveness of the proposed scheme. This paper offers an efficient method to regulate the voltage of a modular switched capacitor converter with exponential gain. The advantages of the proposed design are small number of added components, does not require additional sources and suitable for higher power range

Supporting Agency

  • The authors thank the University of Mosul/College of Engineering and the College of Electronics Engineering at Ninevah University for their assistance in improving the quality of this work.

Author Biographies

Mohamed N. Abdul Kadir, University of Mosul

Doctor of Philosophy in Electrical Engineering, Literature

Department of Electrical Engineering

Collage of Engineering

Yasir M. Y. Ameen, University of Mosul

Doctor of Philosophy in Electrical Engineering, Assistant Professor

Department of Electrical Engineering

Collage of Engineering

Harith Al-Badrani, Ninevah University

Doctor of Engineer in Electrical Engineering, Assistant Professor

Department of Electronic Engineering

College of Electronics Engineering

References

  1. Loranca-Coutiño, J., Villarreal-Hernandez, C. A., Mayo-Maldonado, J. C., Valdez-Resendiz, J. E., Lopez-Nuñez, A. R., Ruiz-Martinez, O. F., Rosas-Caro, J. C. (2020). High Gain Boost Converter with Reduced Voltage in Capacitors for Fuel-Cells Energy Generation Systems. Electronics, 9 (9), 1480. doi: https://doi.org/10.3390/electronics9091480
  2. Bakeer, A., Chub, A., Vinnikov, D. (2020). Step-Up Series Resonant DC–DC Converter with Bidirectional-Switch-Based Boost Rectifier for Wide Input Voltage Range Photovoltaic Applications. Energies, 13 (14), 3747. doi: https://doi.org/10.3390/en13143747
  3. Truong, V.-A., Luong, X.-T., Nguyen, P.-T., Quach, T.-H. (2020). The Improvement Switching Technique for High Step-Up DC-DC Boost Converter. Electronics, 9 (6), 981. doi: https://doi.org/10.3390/electronics9060981
  4. Wong, Y.-S., Chen, J.-F., Liu, K.-B., Hsieh, Y.-P. (2017). A Novel High Step-Up DC-DC Converter with Coupled Inductor and Switched Clamp Capacitor Techniques for Photovoltaic Systems. Energies, 10 (3), 378. doi: https://doi.org/10.3390/en10030378
  5. Ameen, Y. M. Y., Al-Badrani, H., Abdul Kadi, M. N. (2021). Design and simulation of a high-power double-output isolated Cuk converter. Eastern-European Journal of Enterprise Technologies, 5 (5 (113)), 30–38. doi: https://doi.org/10.15587/1729-4061.2021.238984
  6. Seeman, M. D., Sanders, S. R. (2008). Analysis and Optimization of Switched-Capacitor DC–DC Converters. IEEE Transactions on Power Electronics, 23 (2), 841–851. doi: https://doi.org/10.1109/tpel.2007.915182
  7. Axelrod, B., Berkovich, Y., Ioinovici, A. (2008). Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters. IEEE Transactions on Circuits and Systems I: Regular Papers, 55 (2), 687–696. doi: https://doi.org/10.1109/tcsi.2008.916403
  8. Padhee, S., Pati, U. C., Mahapatra, K. (2016). Overview of High-Step-Up DC–DC Converters for Renewable Energy Sources. IETE Technical Review, 35 (1), 99–115. doi: https://doi.org/10.1080/02564602.2016.1255571
  9. Eguchi, K., Do, W., Shibata, A. (2021). Analysis of a High Step-Down DC/DC Converter Topology with a Single Inductor. International Journal of Intelligent Engineering and Systems, 14 (1), 552–565. doi: https://doi.org/10.22266/ijies2021.0228.51
  10. Veerabathini, A., Furth, P. M. (2020). High-Efficiency Switched-Capacitor DC-DC Converter with Three Decades of Load Current Range Using Adaptively-Biased PFM. Journal of Low Power Electronics and Applications, 10 (1), 5. doi: https://doi.org/10.3390/jlpea10010005
  11. Qian, W., Peng, F. Z., Shen, M., Tolbert, L. M. (2009). 3X DC-DC Multiplier/Divider for HEV Systems. 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition. doi: https://doi.org/10.1109/apec.2009.4802802
  12. Khan, F. H., Tolbert, L. M. (2009). Multiple-Load–Source Integration in a Multilevel Modular Capacitor-Clamped DC–DC Converter Featuring Fault Tolerant Capability. IEEE Transactions on Power Electronics, 24 (1), 14–24. doi: https://doi.org/10.1109/tpel.2008.2006055
  13. Qian, W., Cao, D., Cintron-Rivera, J. G., Gebben, M., Wey, D., Peng, F. Z. (2012). A Switched-Capacitor DC–DC Converter With High Voltage Gain and Reduced Component Rating and Count. IEEE Transactions on Industry Applications, 48 (4), 1397–1406. doi: https://doi.org/10.1109/tia.2012.2199731
  14. Tran, V.-T., Nguyen, M.-K., Choi, Y.-O., Cho, G.-B. (2018). Switched-Capacitor-Based High Boost DC-DC Converter. Energies, 11 (4), 987. doi: https://doi.org/10.3390/en11040987
  15. Shoyama, M., Ninomiya, T. (2007). Output Voltage Control of Resonant Boost Switched Capacitor Converter. 2007 Power Conversion Conference - Nagoya. doi: https://doi.org/10.1109/pccon.2007.373073
  16. Natheer, S. K., Abdul Kadir, M. N. (2022). Maximum resolution of switched capacitor converter: a graphical approach. International Journal of Power Electronics and Drive Systems (IJPEDS), 13 (1), 330. doi: https://doi.org/10.11591/ijpeds.v13.i1.pp330-339
  17. Abraham, C., Rakhee, R., Jose, B. R. (2014). A Multiple Input Multiple Output Switched Capacitor DC-DC Converter with Reduced Switch Count. 2014 Fifth International Symposium on Electronic System Design. doi: https://doi.org/10.1109/ised.2014.29
  18. Gunasekaran, D., Qin, L., Karki, U., Li, Y., Peng, F. Z. (2017). A Variable (n/m)X Switched Capacitor DC–DC Converter. IEEE Transactions on Power Electronics, 32 (8), 6219–6235. doi: https://doi.org/10.1109/tpel.2016.2621105
  19. Priyadarshi, A., Kar, P., Karanki, S. (2019). Switched Capacitor Based High Gain DC-DC Converter Topology for Multiple Voltage Conversion Ratios with Reduced Output Impedance. Journal of Power Electronics, 19 (3), 676–690. doi: https://doi.org/10.6113/JPE.2019.19.3.676
  20. Huang, Y., Xiong, S., Tan, S.-C., Hui, S.-Y. (2016). Compact modular switched-capacitor DC/DC converters with exponential voltage gain. 2016 IEEE Applied Power Electronics Conference and Exposition (APEC). doi: https://doi.org/10.1109/apec.2016.7468127
Development of an efficient voltage regulation mechanism for switched capacitor converter with exponential gain

Downloads

Published

2022-12-30

How to Cite

Abdul Kadir, M. N., Ameen, Y. M. Y., & Al-Badrani, H. (2022). Development of an efficient voltage regulation mechanism for switched capacitor converter with exponential gain . Eastern-European Journal of Enterprise Technologies, 6(5 (120), 18–28. https://doi.org/10.15587/1729-4061.2022.270316

Issue

Vol. 6 No. 5 (120) (2022): Applied physics

Section

Applied physics

License

Copyright (c) 2022 Mohamed N. Abdul Kadir, Yasir M. Y. Ameen, Harith Al-Badrani

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.