新能源电力系统的暂态同步稳定研究综述  

Overview on Transient Synchronization Stability of Renewable-rich Power Systems

作　　者：耿华[1] 何长军 刘浴霜 何秀强 李明 GENG Hua;HE Changjun;LIU Yushuang;HE Xiuqiang;LI Ming(Department of Automation,Tsinghua University,Beijing 100086,China;Automatic Control Laboratory,ETH Zurich,Zurich 8092,Switzerland)

机构地区：[1]清华大学自动化系,北京100086 [2]苏黎世联邦理工学院自动控制实验室,苏黎世8092

出　　处：《高电压技术》2022年第9期3367-3383,共17页High Voltage Engineering

基　　金：国家自然科学基金(U2166601;U2066602;52061635102);中国博士后科学基金(2021M701842)。

摘　　要：全球范围内的能源变革加快了新能源电力系统的发展,大量以电力电子为并网接口的新能源装备逐步成为电力系统的主体。与传统同步发电机组不同,新能源装备的动态行为主要由控制策略决定,大规模新能源接入将全面深刻改变电力系统的动态特性。该文关注新能源装备接入所引发的电力系统暂态同步稳定问题,从装备和系统两个层面展开综述。在装备层面,从静态失稳和动态失稳两方面分析了新能源装备的暂态同步稳定性,总结了跟网型和构网型同步控制这两类策略的分析方法、失稳机理和致稳方法;在系统层面,讨论了不同发电组成的新能源电力系统中的多机动态交互现象和由此引发的同步失稳机理;最后,总结了现有研究的主要结论,针对在稳定性分类、分析方法、控制方法和系统层面的稳定性研究存在的不足,展望了新能源电力系统暂态同步稳定研究未来可能的发展方向。The worldwide energy revolution has accelerated the development of renewable-rich power systems, and numerous renewable energy technologies have penetrated as the main resources via power electronic interfaces. These new technologies exhibit control-dominated dynamic characteristics, which are largely different from synchronous generators.The high penetration of renewable energy technologies is altering the dynamic characteristics of power systems in a comprehensive and profound way. This paper overviews the transient synchronization issue brought by the connection of renewables to power systems, involving both the device level and system level. At the device level, the transient synchronization stability of renewable energy technologies is analyzed in terms of static instability and dynamic instability. The analysis methods, loss-of-synchronism mechanism, stabilization measures of two types of strategies, and grid-following and grid-forming synchronization controls, are summarized. At the system level, emerging interaction phenomena and instability mechanisms in different typologies of power systems with multiple generation devices are surveyed. Finally, the main conclusions of the existing studies are summarized, and the possible future directions for transient synchronous stability of new energy power systems are discussed with respect to the limitations in the stability classification, analysis methods, control methods, and stability studies at the system level.

关 键 词：暂态同步稳定 跟网型 构网型 同步失稳机理 致稳方法 多机系统 混联系统 

分 类 号：TM73[电气工程—电力系统及自动化] TM712