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Title: A uniform control strategy for the interlinking converter in hierarchical controlled hybrid AC/DC microgrids
Authors: Wang, Junjun
Jin, Chi
Wang, Peng
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: Wang, J., Jin, C., & Wang, P. (2018). A uniform control strategy for the interlinking converter in hierarchical controlled hybrid AC/DC microgrids. IEEE Transactions on Industrial Electronics, 65(8), 6188-6197. doi:10.1109/TIE.2017.2784349
Journal: IEEE Transactions on Industrial Electronics
Abstract: This paper presents a uniform control strategy for the bidirectional ac/dc interlinking converter (BIC) in hierarchical controlled hybrid microgrid. The uniform control strategy unifies different control structures for multifunctional BIC in terms of power management, ac and dc voltage support. With the unified control structure, various triggering mechanisms for BIC mode-switch are not compulsory in response to the relevant scenario changes in the power network. Therefore, the negative consequences, such as unsmooth transition and system collapse due to the inaccurate or slower mode switch, can be avoided. Moreover, the uniform control strategy is also applicable for the hierarchical controlled hybrid microgrid, whose control architecture is typically comprised of the centralized and decentralized levels. This enables the communication fault ride-through capability and the impact from the communication failures can thus be mitigated. To sum up the above two features, the proposed control strategy is able to provide a smooth operation for the BIC without control mode switch in the event of unintentional scenario changes in power or communication network. To verify the validity of the proposed uniform control strategy, the controller hardware-in-the-loop experimental results have been provided in this paper.
ISSN: 0278-0046
DOI: 10.1109/TIE.2017.2784349
Rights: © 2017 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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