http://iet.metastore.ingenta.com
1887

Maximum constant boost approach for controlling quasi-Z-source-based interlinking converters in hybrid AC–DC microgrids

Maximum constant boost approach for controlling quasi-Z-source-based interlinking converters in hybrid AC–DC microgrids

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Generation, Transmission & Distribution — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

This study presents the mathematical modelling and control design methodology of bidirectional quasi-Z-source inverters (qZSIs) for interlinking converter application in hybrid AC–DC microgrids. The proposed control scheme provides the maximum constant boost (MCB) control capability for the qZSI in both grid-connected and islanded modes of operation even in the presence of unbalanced AC loads. The proposed approach maintains the MCB without any additional control loop for regulating the voltage of the DC-side capacitor of the qZSI. This is done by determining the shoot through duty cycle of the qZSI based on the inverter modulation index. Moreover, maintaining the MCB condition, the proposed control scheme provides a high stability margin for the qZSI network. The effectiveness of the proposed method is demonstrated through simulation studies conducted on a typical AC–DC hybrid microgrid in MATLAB/Simulink environment for both islanded and grid-connected modes of operation.

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
    13. 13)
      • 13. Gajanayake, C.J., Vilathgamuwa, D.M., Loh, P.C.: ‘Small-signal and signal-flow-graph modeling of switched Z-source impedance network’, IEEE Trans. Power Electron., 2005, 3, (3), pp. 111116.
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
    22. 22)
      • 22. Jung, J., Keyhani, A.: ‘Control of a fuel cell based Z-source converter’, IEEE Trans. Ind. Electron., 2007, 22, (2), pp. 467476.
    23. 23)
    24. 24)
    25. 25)
    26. 26)
      • 26. Anderson, J., Peng, F.Z.: ‘Four quasi-Z-source inverters’. Proc. IEEE PESC'08, 2008, pp. 27432749.
    27. 27)
    28. 28)
      • 28. Khajesalehi, J., Sheshyekani, K., Hamzeh, M., et al: ‘A new control strategy for bidirectional qZSI as interlink converter in hybrid ac/dc microgrid’. Proc. IEEE PEDSTC, 2014, pp. 458463.
    29. 29)
    30. 30)
    31. 31)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-gtd.2015.0607
Loading

Related content

content/journals/10.1049/iet-gtd.2015.0607
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address