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Complex Affine Arithmetic-Based Power Flow Analysis for Zonal Medium Voltage Direct Current Shipboard Power Systems in the Presence of Power Variation

Author

Listed:
  • Fang Lu

    (College of Automation, Harbin Engineering University, Harbin 150001, China)

  • Liang Yan

    (School of Electrical & Electronic Engineering, North China Electric Power University, Baoding 071003, China)

  • Hongda Liu

    (College of Automation, Harbin Engineering University, Harbin 150001, China)

  • Fanming Liu

    (College of Automation, Harbin Engineering University, Harbin 150001, China)

Abstract

The medium-voltage direct-current (MVDC) ship power system has been extensively investigated and discussed in recent years. This paper presents an alternating current/direct-current (AC/DC) power flow algorithm based on complex affine arithmetic for the zonal MVDC shipboard power system in the presence of power variation. The power converter effect is considered, and an affine power converter model is proposed in the power flow model. An affine-analysis-based sequential method is adopted to solve AC/DC power flows. With the proposed algorithm, the bounds of bus voltages can be effectively obtained. A relative influence factor is defined to quantitatively assess the effect of power variation on voltage profile. Four cases are studied in detail to demonstrate the applicability of the proposed algorithm. The proposed algorithm is useful in network architecture design, planning, and online operations of MVDC power systems when such decisions are subject to power variation.

Suggested Citation

  • Fang Lu & Liang Yan & Hongda Liu & Fanming Liu, 2018. "Complex Affine Arithmetic-Based Power Flow Analysis for Zonal Medium Voltage Direct Current Shipboard Power Systems in the Presence of Power Variation," Energies, MDPI, vol. 11(7), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:7:p:1697-:d:155494
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    References listed on IDEAS

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    1. Lizi Luo & Wei Gu & Yonghui Wang & Chunxi Chen, 2017. "An Affine Arithmetic-Based Power Flow Algorithm Considering the Regional Control of Unscheduled Power Fluctuation," Energies, MDPI, vol. 10(11), pages 1-6, November.
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    Cited by:

    1. Flavio Balsamo & Davide Lauria & Fabio Mottola, 2019. "Design and Control of Coupled Inductor DC–DC Converters for MVDC Ship Power Systems," Energies, MDPI, vol. 12(4), pages 1-20, February.

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