An Introspective Review on Commutation Failure Inhibition Strategies in LCC-HVDC Transmission Networks

2022 IEEE Industry Applications Society Annual Meeting (IAS) Pub Date : 2022-10-09 DOI:10.1109/IAS54023.2022.9939962

S. Mirsaeidi, Alice Giramata, D. Tzelepis, Jinghan He, D. M. Said, K. Muttaqi

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Abstract

Line-Commutated Converter High Voltage Direct Current (LCC-HVDC) technology plays an irreplaceable role in power transmission systems due to its thyristor's superior power handling capability and low operating power losses. Nevertheless, one of the main challenges associated with such systems is the high risk of commutation failure caused by inverter AC faults which leads to temporary cessation in transmitted power and severe stress on the converter equipment. The purpose of this study is to provide a comprehensive overview of the available strategies for commutation failure mitigation in LCC-HVDC networks, and then to investigate their mechanism, effectiveness, and limitations. In addition to describing the existing solutions presented to date, and classifying them into specific groups, a comparative analysis has been carried out in which the main merits and demerits of each category are presented. Finally, based on the analyzed technical literature, some insights and future research directions are pointed out.

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LCC-HVDC输电网换相失效抑制策略的反思

线路整流变换器高压直流(lc - hvdc)技术以其晶闸管优越的功率处理能力和低的运行损耗在输电系统中发挥着不可替代的作用。然而，与此类系统相关的主要挑战之一是逆变器交流故障引起的换相故障的高风险，这会导致传输功率暂时停止，并对变流器设备造成严重压力。本研究的目的是全面概述在lc - hvdc网络中缓解换相故障的可用策略，然后调查其机制、有效性和局限性。除了描述迄今提出的现有解决办法，并将它们分成特定的组外，还进行了比较分析，其中提出了每一类的主要优点和缺点。最后，在对相关技术文献进行分析的基础上，指出了今后的研究方向。

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2022 IEEE Industry Applications Society Annual Meeting (IAS)

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