李兰芳,王子莹,李奇南,张帆,张晓林,白雪
LI Lanfang,WANG Ziying,LI Qinan,ZHANG Fan,ZHANG Xiaolin,BAI Xue

• 1:南瑞集团有限公司(国网电力科学研究院有限公司)
• 2:北京市直流输配电工程技术研究中心(中电普瑞电力工程有限公司)

摘要(Abstract)：

围绕构网型柔性直流输电系统的同步控制，首先，分析了柔性直流输电系统的构网型控制需求，介绍了国内外构网型柔直技术的应用现状。其次，系统分析了功率同步、直流电压同步、MMC子模块能量/电压同步、混合同步4类典型同步控制方法的原理，并比较了单环、级联双环两种同步控制架构的性能，从同步机制、适用场景等方面对各同步控制策略进行对比分析。然后，对暂态同步失稳机理、暂态稳定分析方法、同步控制参数和限流方式对暂态稳定性的影响以及提升暂态同步稳定性的措施等进行了分析总结。最后，分析了既有研究面临的挑战，对构网型柔直同步控制研究进行展望，给出了未来研究方向的建议。
Focusing on the synchronization control of grid-forming flexible HVDC(high-voltage direct current) transmission systems, this paper first analyzes the requirements for grid-forming control in flexible HVDC systems and reviews the current application status of grid-forming flexible HVDC technology both at home and abroad. Subsequently, it systematically analyzes the principles of four typical synchronization control methods: power synchronization, DC voltage synchronization, MMC submodule energy/voltage synchronization, and hybrid synchronization. The performance of two prevalent synchronization control architectures-single-loop and cascaded dual-loop is compared. A comparative analysis of various synchronization control strategies is conducted from perspectives such as synchronization mechanisms and applicable scenarios. Furthermore, the paper analyzes and summarizes the mechanisms of transient synchronization instability, methodologies for transient stability analysis, the impact of synchronization control parameters and current limiting methods on transient stability, and measures to enhance transient synchronization stability. Finally, the challenges faced by existing research are discussed, future prospects for research on grid-forming flexible HVDC synchronization control are outlined, and recommendations for future research directions are provided.

关键词(KeyWords)： 构网型控制;柔性直流输电;同步方法;暂态同步稳定性;限流
GFM;flexible HVDC;synchronization method;transient synchronization stability;current limiting

Abstract:

Keywords:

基金项目(Foundation): 南瑞集团科技项目(SGNRPG00YFJS2200406B)

作者(Author): 李兰芳,王子莹,李奇南,张帆,张晓林,白雪
LI Lanfang,WANG Ziying,LI Qinan,ZHANG Fan,ZHANG Xiaolin,BAI Xue

DOI: 10.19585/j.zjdl.202512009

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