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Fruit fly optimization algorithm multi-objective control method for MMC traction power supply system with unbalanced distribution network

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Abstract

When distribution voltage is unbalanced, the voltage and current on the AC side of the traction power supply system based on a modular multilevel converter (MMC) will have negative sequence components, causing reactive and active power fluctuations. At this time, the circulation current will also occur in the MMC, threatening the safety and operation of the system. Based on the analysis of the power fluctuation mechanism, this paper derives the expression of the multi-objective control function combined with the universal current calculation formula. The fruit fly optimization algorithm (FOA) minimizes the multi-objective function and achieves the purpose of suppressing the coordinated control of the three objectives of negative sequence current and active and reactive power fluctuations. The resonant vector controller (RVC) was used to suppress the circulation current in MMC system. A simulation model was built to verify the effectiveness of the proposed strategy and algorithm.

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Acknowledgements

This research was funded by Natural Science Foundation of Hunan Province, Grant Number “2021JJ30674”.

Funding

This research was funded by Natural Science Foundation of Hunan Province, grant number “2021JJ30674”.

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Authors and Affiliations

  1. College of Automation and Electronic Information, Xiangta University, Xiangtan, China

    Hongbin Pan, Kai Qin, Jiale Zhang & Changmin Yuan

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  1. Hongbin Pan
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  2. Kai Qin
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  3. Jiale Zhang
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  4. Changmin Yuan
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Contributions

Methodology, K.Q. and J.Z.; software, C.Y.; validation, K.Q., J.Z. and C.Y.; formal analysis, K.Q.; resources, C.Y.; writing—original draft preparation, K.Q.; writing—review and editing, H.P. and J.Z.; supervision, H.P. and J.Z.; project administration, H.P.; funding acquisition, H.P. All authors have read and agreed to the published version of the manuscript. K.Q is KaiQin; H.P is Hongbin Pan; J.Z is Jiale Zhang; C.Y is Changmin Yuan.

Corresponding author

Correspondence to Kai Qin.

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I declare that there is no conflict of interest in the publication of this article, and that there is no conflict of interest with any other author or institution for the publication of this article.

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Pan, H., Qin, K., Zhang, J. et al. Fruit fly optimization algorithm multi-objective control method for MMC traction power supply system with unbalanced distribution network. Int. J. Dynam. Control 10, 1922–1933 (2022). https://doi.org/10.1007/s40435-022-00927-3

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  • DOI: https://doi.org/10.1007/s40435-022-00927-3

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