An Interline HVDC Power Flow Controller Based on Energy-Exchanging Arm

Meshed HVDC grid is instrumental in enhancing transmission capability and mitigating power fluctuations of renewable power generations. However, meshed DC grid cannot fully regulate the current flow through each line. To address the problem, this paper presents a novel design for DC power flow contr...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2024-12, p.1-12
Main Authors: Jiao, Yingzong, Ding, Lianzheng, Li, Binbin, Xu, Dianguo
Format: Article
Language:English
Subjects:
Capacitors
Current control
DC power flow controller
energy-exchanging arm
Fluctuations
high-voltage direct-current (HVDC)
HVDC transmission
Load flow
meshed DC grid
Power electronics
Thyristors
Topology
Valves
Voltage control
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Summary:Meshed HVDC grid is instrumental in enhancing transmission capability and mitigating power fluctuations of renewable power generations. However, meshed DC grid cannot fully regulate the current flow through each line. To address the problem, this paper presents a novel design for DC power flow controller (DCPFC) that enhances power flow control capability of meshed HVDC grid while minimizing the use of semiconductors. Benefits could be especially valuable in multiport applications. The circuit structure, operating waveforms, parameters and control design are presented. The start process of the proposed DCPFC is also introduced. Simulation results and down-scaled experimental tests are performed for demonstrating the effectiveness of the proposed topology.
ISSN:0885-8993
DOI:10.1109/TPEL.2024.3519786