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Design and control of utility grid-tied bipolar DC microgrid

  • Satish Reddy Dodda ORCID logo EMAIL logo and Srinivasa Rao Sandepudi ORCID logo
Published/Copyright: January 1, 2024

Abstract

This paper explains in detail the design and control of a utility grid-connected bipolar DC microgrid, which consists of a solar photovoltaic system (SPV), a wind energy conversion system (WECS), a battery energy storage system (BESS) at the DC bus, and a three-level neutral point clamped (NPC) converter to connect the DC microgrid to the utility grid. A three-level bidirectional DC–DC converter at the battery energy storage system (BESS) is controlled with model predictive current control (MPCC), and a three-level NPC converter is controlled with a voltage-oriented control based proportional resonant (VOC-PR) controller. The proposed MPCC scheme for the three-level bidirectional DC–DC converter and the VOC-PR control scheme for the three-level NPC converter coordinate with each other to balance and regulate the voltage at the bipolar DC microgrid, control the power flow to the loads at the DC microgrid and the load at the point of common connection (PCC), and also inject or draw power from the utility grid and BESS based on the availability of Renewable Energy Sources (RES). Simulation and experimental results are presented to demonstrate the effectiveness of the proposed MPCC control scheme.


Corresponding author: Satish Reddy Dodda, Department of Electrical Engineering, National Institute of Technology Warangal, Warangal 506004, T.S., India, E-mail:

Acknowledgment

We would like to extend our gratitude to the Government of India (No. EMR/2016/006225) for providing financial support through the Science and Engineering Research Board (SERB).

  1. Research ethics: Not applicable.

  2. Author contributions: All authors have collectively agreed to take responsibility for the content of this submitted manuscript and have given their consent for its submission.

  3. Competing interests: The authors confirm that there are no conflicts of interest related to the publication of this article.

  4. Research funding: We would like to express our gratitude to the Science and Engineering Research Board (SERB), Government of India (No. EMR/2016/006225) for providing financial support.

  5. Data availability: Not applicable.

References

1. Justo, JJ, Mwasilu, F, Lee, J, Jung, J-W. AC-microgrids versus DC-microgrids with distributed energy resources: a review. Renew Sustain Energy Rev 2013;24:387–405. https://doi.org/10.1016/j.rser.2013.03.067.Search in Google Scholar

2. Xu, L, Chen, D. Control and operation of a DC microgrid with variable generation and energy storage. IEEE Trans Power Deliv 2011;26:2513–22. https://doi.org/10.1109/tpwrd.2011.2158456.Search in Google Scholar

3. Gupta, A, Doolla, S, Chatterjee, K. Hybrid AC–DC microgrid: systematic evaluation of control strategies. IEEE Trans Smart Grid 2018;9:3830–43. https://doi.org/10.1109/tsg.2017.2727344.Search in Google Scholar

4. Biczel, P, Michalski, L. Simulink models of power electronic converters for DC microgrid simulation. In: IEEE: compatability and power electronics; 2009:161–5 pp.10.1109/CPE.2009.5156029Search in Google Scholar

5. Jackson, L, Heldwein, ML. Operation and control-oriented modeling of a power converter for current balancing and stability improvement of DC active distribution networks. IEEE Trans Power Electron 2011;26:877–85. https://doi.org/10.1109/tpel.2011.2105284.Search in Google Scholar

6. Wang, P, Jin, C, Zhu, D, Tang, Y, Loh, PC, Choo, FH. Distributed control for autonomous operation of a three-port AC/DC/DS hybrid microgrid. IEEE Trans Ind Electron 2015;62:1279–90. https://doi.org/10.1109/tie.2014.2347913.Search in Google Scholar

7. Prabhakaran, P, Goyal, Y, Agarwal, V. Novel nonlinear droop control techniques to overcome the load sharing and voltage regulation issues in DC microgrid. IEEE Trans Power Electron 2018;33:4477–87. https://doi.org/10.1109/tpel.2017.2723045.Search in Google Scholar

8. Korada, DMR, Mishra, MK. Adaptive power management algorithm for multi-source DC microgrid system. Int J Emerg Elec Power Syst 2022;24:319–40. https://doi.org/10.1515/ijeeps-2021-0400.Search in Google Scholar

9. Kakigano, H, Miura, Y, Ise, T. Low-voltage bipolar-type DC microgrid for super high quality distribution. IEEE Trans Power Electron 2010;25:3066–75. https://doi.org/10.1109/tpel.2010.2077682.Search in Google Scholar

10. Cui, S, Lee, J-H, Hu, J, RikDe Doncker, W, Sul, S-K. A modular multilevel converter with a zigzag transformer for bipolar MVDC distribution systems. IEEE Trans Power Electron 2019;34:1038–43. https://doi.org/10.1109/tpel.2018.2855082.Search in Google Scholar

11. Prabhakaran, P, Agarwal, V. Mitigation of voltage unbalance in a low voltage bipolar DC microgrid using a boost-SEPIC type interleaved dc–dc compensator. In: IEEE: 2nd annual southern power electronics conference (SPEC); 2016:1–6 pp.10.1109/SPEC.2016.7846222Search in Google Scholar

12. Taha, A, Rokrok, E, Hamzeh, M. Mitigation of voltage unbalances in bipolar DC microgrids using three-port multidirectional DC–DC converters. J. Power Electron. 2018;18:1223–34.Search in Google Scholar

13. Prabhakaran, P, Agarwal, V. Novel four-port DC–DC converter for interfacing solar PV–fuel cell hybrid sources with low-voltage bipolar DC microgrids. IEEE J Emerg Sel Top Power Electron 2020;8:1330–40. https://doi.org/10.1109/jestpe.2018.2885613.Search in Google Scholar

14. Prajof, P, Agarwal, V. Novel boost-SEPIC type interleaved DC–DC converter for low-voltage bipolar dc microgrid-tied solar pv applications. In: IEEE: 42nd photovoltaic specialist conference (PVSC); 2015:1–6 pp.10.1109/PVSC.2015.7356272Search in Google Scholar

15. Garcia, O, Zumel, P, de Castro, A, Cobos, A. Automotive DC–DC bidirectional converter made with many interleaved buck stages. IEEE Trans Power Electron 2006;21:578–86. https://doi.org/10.1109/tpel.2006.872379.Search in Google Scholar

16. Dwari, S, Parsa, L. An efficient high-step-up interleaved DC–DC converter with a common active clamp. IEEE Trans Power Electron 2011;26:66–78. https://doi.org/10.1109/tpel.2010.2051816.Search in Google Scholar

17. Gules, R, Pfitscher, LL, Franco, LC. An interleaved boost DC–DC converter with large conversion ratio. In: IEEE: international symposium on industrial electronics (Cat.No.03TH8692); 2003:411–6 pp.10.1109/ISIE.2003.1267284Search in Google Scholar

18. Nami, A, Zare, F, Ghosh, A, Blaabjerg, F. Multi-output DC–DC converters based on diode-clamped converters configuration: topology and control strategy. IET Power Electron 2010;3:197–208. https://doi.org/10.1049/iet-pel.2008.0341.Search in Google Scholar

19. Boora, AA, Nami, A, Zare, F, Ghosh, A, Blaabjerg, F. Voltage-sharing converter to supply single-phase asymmetrical four-level diode-clamped inverter with high power factor loads. IEEE Trans Power Electron 2010;25:2507–20. https://doi.org/10.1109/tpel.2010.2046651.Search in Google Scholar

20. Prabhakaran, P, Agarwal, V. Novel boost-SEPIC type interleaved DC–DC converter for mitigation of voltage imbalance in a low-voltage bipolar DC microgrid. IEEE Trans Ind Electron 2020;67:6494–504. https://doi.org/10.1109/tie.2019.2939991.Search in Google Scholar

21. Tan, L, Wu, B, Yaramasu, V, Rivera, S, Guo, X. Effective voltage balance control for bipolar-DC-bus-fed EV charging station with three-level DC–DC fast charger. IEEE Trans Ind Electron 2016;63:4031–41. https://doi.org/10.1109/tie.2016.2539248.Search in Google Scholar

22. Cuzner, RM, Bendre, AR, Faill, PJ, Semenov, B. Implementation of a non-isolated three level DC/DC converter suitable for high power systems. In: IEEE: industry applications annual meeting; 2007:2001–8 pp.10.1109/IAS.2007.303Search in Google Scholar

23. Grbovic, PJ, Delarue, P, Moigne, PL, Bartholomeus, P. A bidirectional three-level DC–DC converter for the ultracapacitor applications. IEEE Trans Ind Electron 2010;57:3415–30. https://doi.org/10.1109/tie.2009.2038338.Search in Google Scholar

24. Yaramasu, V, Wu, B. Predictive control of a three-level boost converter and an NPC inverter for high-power PMSG-based medium voltage wind energy conversion systems. IEEE Trans Power Electron 2014;29:5308–22. https://doi.org/10.1109/tpel.2013.2292068.Search in Google Scholar

25. Dusmez, S, Amin, H, Khaligh, A. Comparative analysis of bidirectional three-level DC–DC converter for automotive applications. IEEE Trans Ind Electron 2015;62:3305–15. https://doi.org/10.1109/tie.2014.2336605.Search in Google Scholar

26. Tan, L, Wu, B, Rivera, S, Yaramasu, V. Comprehensive DC power balance management in high-power three-level DC–DC converter for electric vehicle fast charging. IEEE Trans Power Electron 2016;31:89–100. https://doi.org/10.1109/tpel.2015.2397453.Search in Google Scholar

27. Du, Y, Zhou, X, Bai, S, Lukic, S, Huang, A. Review of non-isolated bi-directional DC–DC converters for plug-in hybrid electric vehicle charge station application at municipal parking decks. In: IEEE: twenty-fifth annual IEEE applied power electronics conference and exposition (APEC); 2010:1145–51 pp.10.1109/APEC.2010.5433359Search in Google Scholar

28. Rajesh, J, Nisha, KS, Kumar Bonala, A, Rao Sandepudi, S. Predictive control of three level boost converter interfaced SPV system for Bi-polar DC micro grid. In: IEEE: international conference on electrical, computer and communication technologies (ICECCT); 2019:1–6 pp.10.1109/ICECCT.2019.8869216Search in Google Scholar

29. Reddy Dodda, S, Kumar, S, Anil Kumar, B, Rao Sandepudi, S. Bipolar DC micro-grid based wind energy systems. In: Springer Singapore: proceedings of the 7th international conference on advances in energy research; 2020:1403–13 pp.10.1007/978-981-15-5955-6_133Search in Google Scholar

30. Rivera, S, Wu, B. Electric vehicle charging station with an energy storage stage for Split-DC bus voltage balancing. IEEE Trans Power Electron 2017;32:2376–86. https://doi.org/10.1109/tpel.2016.2568039.Search in Google Scholar

31. Dodda, SR, Sandepudi, SR. Design and control of utility grid interfaced solar photovoltaic system for bipolar DC microgrid. In: Springer Singapore: lecture notes in electrical engineering; 2021:195–205 pp.10.1007/978-981-16-1978-6_17Search in Google Scholar

32. Dodda, SR, Sandepudi, SR. Design and control of utility grid interfaced wind energy conversion system for bipolar DC micro grid.In: IEEE: 6th international conference for convergence in technology (I2CT); 2021:1–5 pp.10.1109/I2CT51068.2021.9418150Search in Google Scholar

33. Raj Pinkymol, H, Maswood, AI, Gabriel, OHP, Lim, Z. Analysis of 3-level inverter scheme with DC-link voltage balancing using LS-PWM & SVM techniques. In: IEEE: international conference on renewable energy research and applications (ICRERA); 2013:1036–41 pp.10.1109/ICRERA.2013.6749905Search in Google Scholar

34. Tan, L, Wu, B, Yaramasu, V, Rivera, S. Effective voltage balance control for three-level bidirectional dc–dc converter based electric vehicle fast charger. In: IEEE: 10th conference on industrial electronics and applications (ICIEA); 2015:357–62 pp.10.1109/ICIEA.2015.7334139Search in Google Scholar

35. Xia, C, Gu, X, Shi, T, Yan, Y. Neutral-point potential balancing of three-level inverters in direct-driven wind energy conversion system. IEEE Trans Energy Convers 2011;26:18–29. https://doi.org/10.1109/tec.2010.2060487.Search in Google Scholar

36. Rodriguez, J, Bernet, S, PeterSteimer, K, Lizama, IE. A survey on neutral-point-clamped inverters. IEEE Trans Ind Electron 2010;57:2219–30. https://doi.org/10.1109/tie.2009.2032430.Search in Google Scholar

37. Daher, SÉ, Schmid, JÜ, FernandoAntunes, LM. Multilevel inverter topologies for stand-alone PV systems. IEEE Trans Ind Electron 2008;55:2703–12. https://doi.org/10.1109/tie.2008.922601.Search in Google Scholar

38. Kouro, S, Asfaw, K, Goldman, R, Snow, R, Wu, B, Rodriguez, J. NPC multilevel multistring topology for large scale grid connected photovoltaic systems. In: IEEE: the 2nd international symposium on power electronics for distributed generation systems; 2010:400–5 pp.10.1109/PEDG.2010.5545744Search in Google Scholar

39. Teodorescu, R, Blaabjerg, F, Liserre, M, Loh, PC. Proportional-resonant controllers and filters for grid-connected voltage-source converters. IEE Proc Elec Power Appl 2006;153:750–62. https://doi.org/10.1049/ip-epa:20060008.10.1049/ip-epa:20060008Search in Google Scholar

40. Yang, Y, Zhou, K, Blaabjerg, F. Harmonics suppression for single-phase grid-connected PV systems in different operation modes. In: IEEE: twenty-eighth annual IEEE applied power electronics conference and exposition (APEC); 2013:889–96 pp.10.1109/APEC.2013.6520316Search in Google Scholar

41. Tafti, HD, Maswood, AI, Ukil, A, Ooi, H, Gabriel, P, Lim, Z. NPC photovoltaic grid-connected inverter using proportional-resonant controller. In: IEEE: PES Asia-Pacific power and energy engineering conference (APPEEC); 2014:1–6 pp.10.1109/APPEEC.2014.7066132Search in Google Scholar

Received: 2022-11-13
Accepted: 2023-12-12
Published Online: 2024-01-01

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