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A Full-Newton AC-DC Power Flow Methodology for HVDC Multi-Terminal Systems and Generic DC Network Representation

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  • Leandro Almeida Vasconcelos

    (Department of Electrical Engineering, Federal Institute of Northern Minas Gerais (IFNMG), Montes Claros 39.400-149, Brazil)

  • João Alberto Passos Filho

    (Department of Electrical Engineering, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36.036-900, Brazil)

  • André Luis Marques Marcato

    (Department of Electrical Engineering, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36.036-900, Brazil)

  • Giovani Santiago Junqueira

    (Santo Antônio Energia, Santo Antônio Hydro Plant, Sao Paulo 05.477-000, Brazil)

Abstract

The use of Direct Current (DC) transmission links in power systems is increasing continuously. Thus, it is important to develop new techniques to model the inclusion of these devices in network analysis, in order to allow studies of the operation and expansion planning of large-scale electric power systems. In this context, the main objective of this paper is to present a new methodology for a simultaneous AC-DC power flow for a multi-terminal High Voltage Direct Current (HVDC) system with a generic representation of the DC network. The proposed methodology is based on a full Newton formulation for solving the AC-DC power flow problem. Equations representing the converters and steady-state control strategies are included in a power flow problem formulation, resulting in an expanded Jacobian matrix of the Newton method. Some results are presented based on HVDC test systems to confirm the effectiveness of the proposed approach.

Suggested Citation

  • Leandro Almeida Vasconcelos & João Alberto Passos Filho & André Luis Marques Marcato & Giovani Santiago Junqueira, 2021. "A Full-Newton AC-DC Power Flow Methodology for HVDC Multi-Terminal Systems and Generic DC Network Representation," Energies, MDPI, vol. 14(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1658-:d:518717
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    References listed on IDEAS

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    1. Sungchul Hwang & Sungyoon Song & Gilsoo Jang & Minhan Yoon, 2019. "An Operation Strategy of the Hybrid Multi-Terminal HVDC for Contingency," Energies, MDPI, vol. 12(11), pages 1-22, May.
    2. Zhong Chen & Hui Chen & Minhui Zhuang & Siqi Bu, 2017. "Model, Characterization, and Analysis of Steady-State Security Region in AC/DC Power System with a Large Amount of Renewable Energy," Energies, MDPI, vol. 10(8), pages 1-17, August.
    3. Zhou Li & Yan He & Ting-Quan Zhang & Xiao-Ping Zhang, 2020. "Universal Power Flow Algorithm for Bipolar Multi-Terminal VSC-HVDC," Energies, MDPI, vol. 13(5), pages 1-19, February.
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