The Hybrid AC-DC Power System Coordinated Control and Operation Technology, Volume II

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Industrial Electronics".

Deadline for manuscript submissions: 15 August 2024 | Viewed by 624

Special Issue Editors

College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Interests: power system stability and control; HVDC technology; DC grids; FACTS
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Interests: HVDC technology; FACTS; renewable power integration
Special Issues, Collections and Topics in MDPI journals
College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Interests: AC–DC hybrid power systems; HVDC; renewable power integration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

High-voltage direct current (HVDC) technology plays an increasingly important role in modern power systems. With the number of DC converters integrated into traditional power systems, the stability mechanism of AC–DC hybrid systems becomes complex, and their control strategies face coordination problems.

Specifically, the commutation failures of line-commutated converter (LCC)-based HVDC make power interruptions frequent. Additionally, the oscillations risks brought by the voltage-sourced-converter (VSC) deteriorate the impedance characteristic of the nearby grid, and renewable power grid integration leads to power fluctuations. To solve these new problems, some effective coordination controls are needed, and novel operation strategies should also be proposed.

Based on the challenges faced in modern power systems, we encourage contributions addressing hybrid AC–DC power system coordinated control and operation technology in the broadest sense, including but not limited to the stability and control analysis for LCC-HVDC, stability and control analysis for VSC-HVDC, strategies for coordination between DC converters and AC equipment, coordination strategies between FACTS and AC–DC systems, novel control schemes for renewable power, and protection methods for DC grids and hybrid AC–DC systems.

Dr. Baohong Li
Dr. Zheren Zhang
Dr. Qin Jiang
Guest Editors

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Keywords

  • LCC-HVDC
  • VSC-HVDC
  • FACTS
  • power grid stability and control

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Published Papers (1 paper)

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Research

23 pages, 7828 KiB  
Article
Fault Ride-Through Method for Interline Power Flow Controller Based on DC Current Limiter
by Jiajun Li, Huabo Shi, Baohong Li, Qin Jiang, Yue Yin, Yingmin Zhang, Tianqi Liu and Chang Nie
Electronics 2024, 13(6), 1038; https://doi.org/10.3390/electronics13061038 - 11 Mar 2024
Viewed by 500
Abstract
The interline power flow controller (IPFC) based on a modular multilevel converter with a half-bridge configuration can control the active and reactive power flows of multiple alternating current (AC) lines. However, it forms a multiterminal system on the direct current (DC) side, which [...] Read more.
The interline power flow controller (IPFC) based on a modular multilevel converter with a half-bridge configuration can control the active and reactive power flows of multiple alternating current (AC) lines. However, it forms a multiterminal system on the direct current (DC) side, which leads to DC faults. To reduce the protection and clearance requirements on the DC side of IPFCs, this paper proposes a hybrid current limiter topology suitable for generating a DC-side fault ride-through scheme. The current limiter employs a low-loss branch in steady-state conditions; when the fault occurs, a commutation capacitor and controllable power electronic devices are used to transfer the fault current to the current-limiting branch. To clarify the operating principles of the current limiter, the working states of each stage and electrical stress of each device are analyzed. Different components with varying limiter parameters are also discussed, and optimal parameters to achieve the best limitation effect are discussed. PSCAD simulations show that the proposed limiter can limit the overcurrent effectively, and DC-side fault clearance can be achieved easily with this fault ride-through strategy. Full article
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