A Hybrid AC/DC Distribution Network Power Flow Calculation Method Based on Area Partition

Lu ZHANG; Pengwei CONG; Biao XU; Shunjiang YU; Huanlin LI

doi:10.16513/j.cnki.10-1427/tk.2018.06.007

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Distributed Energy ›› 2018, Vol. 3 ›› Issue (6) : 47-53. DOI: 10.16513/j.cnki.10-1427/tk.2018.06.007

Optimization Planning of Active Distribution Network

A Hybrid AC/DC Distribution Network Power Flow Calculation Method Based on Area Partition

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Abstract

With the development of flexible DC technology, hybrid AC/DC distribution networks based on voltage source converter (VSC) has become the future trend of urban areas. This paper compares different types of converters, the results show that VSC has greater advantages in control flexibility. The VSC control method are analyzed, and the maximum transmission capacity of DC line based on the VSC unipolar symmetric wiring method is proposed. A power flow calculation method through decoupling between AC system and DC system is proposed, which can be applied to a complex AC/DC hybrid distribution network with multi-terminal DC, and can ensure the simplicity and rapidity of power flow calculation. Through the comparison between the commercial power flow solving software DIgSILENT and the proposed method, the correctness of the proposed method is verified.

Key words

hybrid AC/DC / distribution network / DC distribution / power flow calculation

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Lu ZHANG , Pengwei CONG , Biao XU , et al . A Hybrid AC/DC Distribution Network Power Flow Calculation Method Based on Area Partition[J]. Distributed Energy Resources. 2018, 3(6): 47-53 https://doi.org/10.16513/j.cnki.10-1427/tk.2018.06.007

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