open access publication

Article, 2024

Power-flow for archipelago-based multi-terminal HVDC grids

Electric Power Systems Research, ISSN 1873-2046, 0378-7796, Volume 231, Page 110274, 10.1016/j.epsr.2024.110274

Contributors

Da Silva, Filipe Miguel Faria 0000-0002-2640-0964 (Corresponding author) [1] Irnawan, Roni 0000-0001-6634-3426 [2] Mochamad, Rian Fatah [2] Zhang, Zhengfa 0000-0001-6938-2658 [3] Zhang, Qi [1]

Affiliations

  1. [1] Aalborg University
    2. [NORA names: AAU Aalborg University; University; Denmark; Europe, EU; Nordic; OECD];
  2. [2] Gadjah Mada University
    3. [NORA names: Indonesia; Asia, South];
  3. [3] University of Tennessee at Knoxville
    4. [NORA names: United States; America, North; OECD]

Abstract

The development of multi-terminal HVDC (MTDC) grids for an archipelago of islands with very different generation/load profiles and network characteristics presents unique challenges. This paper utilizes the superposition theorem to solve power flows in MTDC grids. Through the application of the theorem, it is possible to associate the current/power injection at each terminal to voltage variations in the entire MTDC grid in a simple manner. Afterwards, this information is used to compare the impact of droop characteristics, to show how voltage variations relate with the injections from the different terminals and to study the impact of grid expansion on the operational limits. Additionally, the method is used to implement a power-flow optimisation and to design a droop characteristic for an imaginary MTDC grid connecting Indonesian islands. A discussion on other potential applications of the method is also put forward.

Keywords

HVDC, HVDC grid, Indonesian island, MTDC grid, applications, archipelago, archipelago of islands, challenges, characteristics, development, discussion, droop, droop characteristics, expansion, generation/load, grid, grid expansion, impact, information, injection, islands, limitations, method, multi-terminal HVDC, multi-terminal HVDC grids, network, network characteristics, operational limits, optimisation, potential applications, power flow, profile, superposition, superposition theorem, termination, theorem, unique challenges, variation, voltage, voltage variation

Funders

  • Danida Fellowship Centre

Data Provider: Digital Science

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