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Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS

Received: 5 August 2019    Accepted: 28 August 2019    Published: 26 September 2019
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Abstract

In this paper, a dual-conversion online static UPS and Line-Interactive UPS system were modeled and simulated using PSIM software. The components of the proposed design were specified based on pre-defined constrains, and the dynamic behavior of the system was modeled through state-space equations. With the system components characterized, a suitable controller was developed for closed-loop control of the buck and boost circuits. A battery charge management controller was also developed to ensure the robustness of the design. Overall system performance was analyzed under varying load and line conditions. Both systems consistently supply power to the load regardless of the state of the grid, as long as the battery SOC is adequate.

Published in International Journal of Sensors and Sensor Networks (Volume 7, Issue 3)
DOI 10.11648/j.ijssn.20190703.12
Page(s) 44-50
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Online UPS, Line-Interactive UPS, PID Controller, Converter Design, Energy Storage

References
[1] S. Bekiarov, and A. Emadi, “Uninterruptible power supplies: classification, operation, dynamics, and control,” 17th IEEE Applied Power Electronics Conference Proceedings, Dallas, TX, March2002, pp. 597–604.
[2] M. Milad, and M. Darwish, UPS system: How can future technology and topology improve the energy efficiency in data centers? IEEE Power Engineering Conference (UPEC), 2014 49th International Universities, Cluj-Napoca, 2-5 Sept. 2014, pp. 1-4.
[3] M. Milad, and M. Darwish, Comparison between Double Conversion Online UPS and Flywheel UPS technologies in terms of efficiency and cost in a medium Data Centre, Power Engineering Conference (UPEC), 2015 50th International Universities, Year: 2015, pp. 1–5.
[4] Longjun Liu, Hongbin Sun, Yang Hu, Jingmin Xin, Tao Li, and Nanning Zheng, Leveraging distributed UPS energy for managing solar energy powered data centers, Green Computing Conference (IGCC), 2014 International, Year: 2014, pp. 1-8.
[5] Rasmussen, Neil, “The Different Types of UPS Systems, Whitepaper (1) Revision 7”, APC white paper, Schneider Electric.
[6] Aamir, Muhammad, WajahatUllah Khan Tareen, Kafeel Ahmed Kalwar, Mudasir Ahmed Memon and SaadMekhilef. “A High-Frequency Isolated Online Uninterruptible Power Supply (UPS) System with Small Battery Bank for Low Power Applications.” (2017).
[7] E. Blondel and C. Monney, "Efficient powering of communication and IT equipments using rotating UPS," 4th International Telecommunication - Energy special conference, Vienna, Austria, 2009, pp. 1-5.
[8] Carl Cottuli, “Comparison of Static and Rotary UPS”, Whitepaper (92), APC white paper, Schneider Electric.
[9] Chowdhury, Mahmud-Ul-Tarik, Sharif, Md Saleh Ebn, “Design and Analysis of a Isolated SiC MOSFET based full-bridge DC-DC converter” 5th International Conference on Development of Renewable Energy Technology 2018 (ICDRET’18), Kathmandu, Nepal, 2018.
[10] H. S. Khalil, S. A. Shehata, M. A. El-Bakry and A. E. M. M. Aly, "Modeling and simulating an UPS system with feedforward and feedback control," IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No. 97CH6203), Honolulu, HI, 1997, pp. 1732-1737 vol. 3.
[11] W. Solter, "A new international UPS classification by IEC 62040-3," 24th Annual International Telecommunications Energy Conference, 2002, pp. 541-545.
[12] Taeck-Kie Lee, Woo-Cheol Lee, Hoon Jang and Dong-Seok Hyun, "A study on the line-interactive UPS using the series voltage compensator," IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2002, pp. 733-738 vol. 1.
[13] Milad, M., and M. Darwish. "UPS system: How can future technology and topology improve the energy efficiency in data centers?" In Power Engineering Conference (UPEC), 2014 49th International Universities, pp. 1-4. IEEE, 2014.
[14] Iftikhar, M., Aamir, M., Waqar, A., Muslim, F. B. and Alam, I., 2018. Line-Interactive Transformerless Uninterruptible Power Supply (UPS) with a Fuel Cell as the Primary Source. Energies, 11 (3), p. 542.
[15] Choi, W.; Howze, J. W.; Enjeti, P. ‘Fuel-cell powered uninterruptible power supply systems: Designconsiderations’. J. Power Sources 2006, 157, 311–317.
Cite This Article
  • APA Style

    Mahmud-Ul-Tarik Chowdhury, Md. SalehEbn Sharif, S. M. Rafiul Islam, Md. Monower Zahid Khan, Md. Eliasinul Islam. (2019). Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS. International Journal of Sensors and Sensor Networks, 7(3), 44-50. https://doi.org/10.11648/j.ijssn.20190703.12

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    ACS Style

    Mahmud-Ul-Tarik Chowdhury; Md. SalehEbn Sharif; S. M. Rafiul Islam; Md. Monower Zahid Khan; Md. Eliasinul Islam. Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS. Int. J. Sens. Sens. Netw. 2019, 7(3), 44-50. doi: 10.11648/j.ijssn.20190703.12

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    AMA Style

    Mahmud-Ul-Tarik Chowdhury, Md. SalehEbn Sharif, S. M. Rafiul Islam, Md. Monower Zahid Khan, Md. Eliasinul Islam. Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS. Int J Sens Sens Netw. 2019;7(3):44-50. doi: 10.11648/j.ijssn.20190703.12

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  • @article{10.11648/j.ijssn.20190703.12,
      author = {Mahmud-Ul-Tarik Chowdhury and Md. SalehEbn Sharif and S. M. Rafiul Islam and Md. Monower Zahid Khan and Md. Eliasinul Islam},
      title = {Design and Simulation of Dual Conversion Transformerless Online and Line-Interactive UPS},
      journal = {International Journal of Sensors and Sensor Networks},
      volume = {7},
      number = {3},
      pages = {44-50},
      doi = {10.11648/j.ijssn.20190703.12},
      url = {https://doi.org/10.11648/j.ijssn.20190703.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijssn.20190703.12},
      abstract = {In this paper, a dual-conversion online static UPS and Line-Interactive UPS system were modeled and simulated using PSIM software. The components of the proposed design were specified based on pre-defined constrains, and the dynamic behavior of the system was modeled through state-space equations. With the system components characterized, a suitable controller was developed for closed-loop control of the buck and boost circuits. A battery charge management controller was also developed to ensure the robustness of the design. Overall system performance was analyzed under varying load and line conditions. Both systems consistently supply power to the load regardless of the state of the grid, as long as the battery SOC is adequate.},
     year = {2019}
    }
    

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    AU  - Mahmud-Ul-Tarik Chowdhury
    AU  - Md. SalehEbn Sharif
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    Y1  - 2019/09/26
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    N1  - https://doi.org/10.11648/j.ijssn.20190703.12
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    JF  - International Journal of Sensors and Sensor Networks
    JO  - International Journal of Sensors and Sensor Networks
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    AB  - In this paper, a dual-conversion online static UPS and Line-Interactive UPS system were modeled and simulated using PSIM software. The components of the proposed design were specified based on pre-defined constrains, and the dynamic behavior of the system was modeled through state-space equations. With the system components characterized, a suitable controller was developed for closed-loop control of the buck and boost circuits. A battery charge management controller was also developed to ensure the robustness of the design. Overall system performance was analyzed under varying load and line conditions. Both systems consistently supply power to the load regardless of the state of the grid, as long as the battery SOC is adequate.
    VL  - 7
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Author Information
  • Department of Electrical and Computer Engineering, University Northeastern University, Boston, MA

  • Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

  • Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

  • Department of Electrical and Electronic Engineering, The University of Manchester, Manchester, UK

  • Department of Electrical, Electronic & Communication Engineering, Military Institute of Science & Technology, Dhaka, Bangladesh

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