Skip to main content

Advertisement

SpringerLink
Log in

Reactive power correction using virtual synchronous generator technique for droop controlled voltage source inverters in islanded microgrid

  • Original Paper
  • Published:
Energy Systems Aims and scope Submit manuscript

Abstract

This paper proposes an effective way to eliminate the reactive power-sharing errors that is compatible with droop control. The virtual synchronous generator technique was employed to estimate and compensate reactive power-sharing error. The basic idea is to inject a disturbance at active power loop for all parallel inverters from the central controller simultaneously. At the same time, the resultant signal from active power loop is processed through an integral term to fix reactive power errors. This method, in contrary to the virtual impedance method, doesn't depend on the microgrid parameters or configurations. Consequently, it supports the "plug-and-play" trait of modern microgrids. Moreover, stability and fast response are guaranteed using the proposed strategy. To ensure the applicability, comparisons with state of the art research are made in terms of six common scenarios. The comparison study considers the time of compensation, impact of active power change during compensation, frequency robustness, the effect of feeder impedances mismatch, the effect of local load, and the impact of having inverters with different capacities. Ultimately, the standard deviation, the approximation error, and the range are the performance indices used to have a fair comparison.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1

source connected to PCC through a transmission line

Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
Fig. 23
Fig. 24
Fig. 25
Fig. 26

Similar content being viewed by others

References

  1. Duarte, J.L.R., Fan, N.: Operations of a microgrid with renewable energy integration and line switching. Energy Syst. 10(2), 247–272 (2019)

    Article  Google Scholar 

  2. Albatran, S., Al Khalaileh, A.R., Allabadi, A.S.: Minimizing total harmonic distortion of a two-level voltage source inverter using optimal third harmonic injection. IEEE Trans. Power Electron. 35(3), 3287–3297 (2019)

    Article  Google Scholar 

  3. He, J., Li, Y.W.: An enhanced microgrid load demand sharing strategy. IEEE Trans. Power Electron. 27(9), 3984–3995 (2012)

    Article  Google Scholar 

  4. Heymann, B., Bonnans, J.F., Martinon, P., Silva, F.J., Lanas, F., Jiménez-Estévez, G.: Continuous optimal control approaches to microgrid energy management. Energy Syst. 9(1), 59–77 (2018)

    Article  Google Scholar 

  5. Huang, X., Wang, K., Qiu, J., Hang, L., Li, G., Wang, X.: Decentralized control of multi-parallel grid-forming DGs in islanded microgrids for enhanced transient performance. IEEE Access 7, 17958–17968 (2019)

    Article  Google Scholar 

  6. Zelazo, D., Dai, R., Mesbahi, M.: An energy management system for off-grid power systems. Energy Syst. 3(2), 153–179 (2012)

    Article  Google Scholar 

  7. Sadoughi, M., Hojjat, M., Abardeh, M.H. Smart overcurrent relay for operating in islanded and grid-connected modes of a micro-grid without needing communication systems. Energy Syst. 1–21 (2020). https://doi.org/10.1007/s12667-020-00381-0

  8. Yi, Z., Zhao, X., Shi, D., Duan, J., Xiang, Y., Wang, Z.: Accurate power sharing and synthetic inertia control for dc building microgrids with guaranteed performance. IEEE Access 7, 63698–63708 (2019)

    Article  Google Scholar 

  9. He, J., Li, Y.W., Guerrero, J.M., Blaabjerg, F., Vasquez, J.C.: An islanding microgrid power-sharing approach using enhanced virtual impedance control scheme. IEEE Trans. Power Electron. 28(11), 5272–5282 (2013)

    Article  Google Scholar 

  10. Liu, Z., Yang, J., Zhang, Y., Ji, T., Zhou, J., Cai, Z.: Multi-objective coordinated planning of active-reactive power resources for decentralized droop-controlled islanded microgrids based on probabilistic load flow. IEEE Access 6, 40267–40280 (2018)

    Article  Google Scholar 

  11. Tuladhar, A., Jin, H., Unger, T., Mauch, K.: Control of parallel inverters in distributed AC power systems with consideration of line impedance effect. IEEE Trans. Ind. Appl. 36(1), 131–138 (2000)

    Article  Google Scholar 

  12. Zhong, Q.C.: Robust droop controller for accurate proportional load sharing among inverters operated in parallel. IEEE Trans. Ind. Electron. 60(4), 1281–1290 (2011)

    Article  MathSciNet  Google Scholar 

  13. Chen, T., Abdel-Rahim, O., Peng, F., Wang, H.: An improved finite control set-MPC-based power sharing control strategy for islanded AC microgrids. IEEE Access 8, 52676–52686 (2020)

    Article  Google Scholar 

  14. Lee, C.T., Chu, C.C., Cheng, P.T.: A new droop control method for the autonomous operation of distributed energy resource interface converters. IEEE Trans. Power Electron. 28(4), 1980–1993 (2012)

    Article  Google Scholar 

  15. Xie, X., Jia, Y., Hu, C., Yan, X., Wu, Z., Gong, B.: An enhanced microgrid power-sharing strategy based on multiple second order generalized integrators harmonic detection and adaptive virtual impedance. In: 2016 IEEE PES Asia–Pacific Power and Energy Engineering Conference (APPEEC). IEEE, pp. 2343–2347 (2016)

  16. Zhang, P., Li, R., Shi, J., He, X.: An improved reactive power control strategy for inverters in microgrids. In: 2013 IEEE International Symposium on Industrial Electronics. IEEE, pp. 1–6 (2013)

  17. Farhangi, H.: The path of the smart grid. IEEE Power Energy Mag. 8(1), 18–28 (2009)

    Article  Google Scholar 

  18. Li, B., Zhou, L., Yu, X., Zheng, C., Liu, J.: Improved power decoupling control strategy based on virtual synchronous generator. IET Power Electron. 10(4), 462–470 (2016)

    Article  Google Scholar 

  19. Lao, K.W., Deng, W., Sheng, J., Dai, N.: PQ-coupling strategy for droop control in grid-connected capacitive-coupled inverter. IEEE Access 7, 31663–31671 (2019)

    Article  Google Scholar 

  20. Geng, Y., Zhu, L., Song, X., Wang, K., Li, X.: A modified droop control for grid-connected inverters with improved stability in the fluctuation of grid frequency and voltage magnitude. IEEE Access 7, 75658–75669 (2019)

    Article  Google Scholar 

  21. Bergen, A.R.: Power systems analysis. Prentice-Hall, Englewood Cliffs (1986)

    Google Scholar 

  22. Shi, R., Zhang, X., Hu, C., Gu, J., Xu, H., Yu, Y., Ni, H. Virtual impedance design for virtual synchronous generator controlled parallel microgrid inverters based on a cascaded second order general integrator scheme. In: 2016 IEEE PES Asia–Pacific Power and Energy Engineering Conference (APPEEC). IEEE, pp. 815–819 (2016)

Download references

Author information

Authors and Affiliations

  1. Department of Electrical Engineering, Faculty of Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan

    Saher Albatran & Hamzeh Al-shorman

Authors
  1. Saher Albatran
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hamzeh Al-shorman
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Saher Albatran.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Albatran, S., Al-shorman, H. Reactive power correction using virtual synchronous generator technique for droop controlled voltage source inverters in islanded microgrid. Energy Syst 14, 391–417 (2023). https://doi.org/10.1007/s12667-021-00456-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12667-021-00456-6

Keywords

Search

Navigation