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A virtual inertia control strategy of interlinking converters in islanded hybrid AC/DC microgrid

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conference contribution
posted on 05.07.2019 by Jingyi Xiao, Alian Chen, Zhengyu Lin, Haihua Xue
In an islanded hybrid AC/DC microgrid, the existing intermittent distributed generations (DGs) and local loads variation frequently cause power fluctuation. And the DC bus voltage is sensitive to it. A virtual inertia control strategy of interlinking converters (ILCs) in an islanded hybrid microgrid is proposed in this paper, which restrains the DC bus voltage fluctuation and enhances the inertia of the hybrid microgrid. Traditional droop control methods of ILCs mostly only focus on power sharing. The proposed control strategy can not only maintain proportional power distribution between DC and AC subgrids, but also regulate the DC bus voltage directly. It can improve microgrid stability during DC-side loading transitions or distributed energy fluctuations. Moreover, no additional energy storage or inverters are required in a cost-effective manner. The validity of the proposed control method is verified by offline time-domain simulation in MATLAB/Simulink and real-time experiment in OPAL-RT digital platform.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

2019 IEEE Energy Conversion Congress and Exposition (ECCE)

Pages

6301 - 6308

Citation

XIAO, J. .... et al., 2019. A virtual inertia control strategy of interlinking converters in islanded hybrid AC/DC microgrid. IN: 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA, 29th Sept- 3rd Oct.

Publisher

IEEE

Version

AM (Accepted Manuscript)

Rights holder

© IEEE

Publisher statement

© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Acceptance date

30/06/2019

Publication date

2019-11-28

Copyright date

2019

ISBN

9781728103952

eISSN

2329-3748

Language

en

Location

Baltimore, MD, USA

Event dates

29th September 2019 - 3rd October 2019

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