2025年4月5日 周六
首页 > 过刊浏览>2022年第37卷第6期 >3-16. DOI:10.19781/j.issn.1673-9140.2022.06.001
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高压直流输电送端电网暂态过电压机理与抑制策略综述
CSTR:
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作者:
通讯作者:

林圣(1983—),男,教授,博士生导师,主要从事交直流混联电网保护与控制、牵引供电系统故障预测与健康管理、城市轨道交通杂散电流分析与抑制研究;E-mail:slin@swjtu.edu.cn

中图分类号:

TM863

基金项目:

国家自然科学基金(51977183)


Overview of transient overvoltage mechanism and suppression strategies of high voltage direct current transmission grid
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    摘要:

    高压直流输电系统的换相失败、直流闭锁、近区交流短路故障等会导致送端电网暂态过电压,制约输电能力、威胁系统安全稳定运行。为此,首先梳理换相失败、直流闭锁、近区交流故障3种典型故障下直流送端电网暂态过电压产生机理的异同,明确暂态过电压的主要影响因素;其次,总结现有暂态过电压的抑制策略及其优缺点;最后,针对现有研究尚存的不足,指出剖析不同新能源送出场景的暂态过电压机理、揭示暂态过电压多影响因素耦合规律、构建多时空尺度暂态过电压协同抑制体系等3个方面是未来高压直流输电送端电网暂态过电压研究的重点。

    Abstract:

    Commutation failure, DC blocking and near AC short-circuit fault of HVDC transmission system would lead to transient overvoltage of sending-end power grid, restrict transmission capacity and threaten safe and stable operation of system. For this reason, this paper firstly gives the similarities and differences of the transient overvoltage generation mechanism of DC sending-end power grid under three typical fault conditions of commutation failure, DC blocking and near-field AC fault are analyzed systematically, and the main influencing factors of transient overvoltage are clarified. Secondly, the existing transient overvoltage suppression strategies and their advantages and disadvantages are summarized. Finally, in view of the shortcomings of the existing research, it is analyzed that the three aspects of analyzing the transient overvoltage mechanism of different new energy transmission scenarios, revealing the coupling law of multiple influencing factors of transient overvoltage, and constructing a multi-temporal and spatial scale transient overvoltage collaborative suppression system are the focus of future research on transient overvoltage of HVDC sending-end power grid.

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林圣,兰菲燕,刘健,等.高压直流输电送端电网暂态过电压机理与抑制策略综述[J].电力科学与技术学报,2022,37(6):3-16.
LIN Sheng, LAN Feiyan, LIU Jian, et al. Overview of transient overvoltage mechanism and suppression strategies of high voltage direct current transmission grid[J]. Journal of Electric Power Science and Technology,2022,37(6):3-16.

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