高电压技术2024，Vol.50Issue(5)：1967-1977,11.DOI:10.13336/j.1003-6520.hve.20231256
柔性低频输电系统宽频振荡研究现状与展望
Research Status and Challenges of Wide-band Oscillation in Flexible Low-frequency Transmission System
摘要
Abstract
Flexible low-frequency transmission system contains power electronic equipment such as AC/AC converters,which leads to the dynamic coupling of the control link in a wide frequency band,and then results in wide-band oscilla-tion problems.At the same time,compared with the DC transmission system,the flexible low-frequency transmission system exhibits inter-frequency interaction characteristics.Therefore,its dynamic characteristics are more complex,and the problem of wide-band dynamic interaction is more prominent.Solving the wide-band oscillation problem of the sys-tem is an important prerequisite for system stability.First,it is expounded that the flexible low-frequency transmission system can be applied to three types of power transmission scenarios,and on this basis,the wide-band dynamic interac-tion processes that may exist in the system under different application scenarios and the oscillation phenomenon that exists in projects are analyzed.Then,the wide-band oscillation problem and suppression strategies of flexible low-frequency transmission system are summarized,and the deficiencies in the current research on wide-band oscillation analysis and suppression are pointed out.Finally,the prospects in oscillation outlook,mechanism and suppression meth-ods of the wide-band oscillation in the flexible low-frequency transmission system are put forward,providing reference for the follow-up research on the wide-band oscillation of the flexible low-frequency transmission system.关键词
柔性低频输电系统/适用场景/宽频振荡/动态交互/振荡分析/抑制策略Key words
flexible low-frequency transmission system/applicable scenarios/wide-band oscillation/dynamic interaction/oscillation analysis/suppression strategy引用本文复制引用
向念文,王书来,邵冰冰,丁超,韩彬,赵国亮..柔性低频输电系统宽频振荡研究现状与展望[J].高电压技术,2024,50(5):1967-1977,11.基金项目
国家重点研发计划(2021YFB2401100) （2021YFB2401100）
国家电网有限公司科技项目(5211DS22002C).Project supported by National Key R&D Program of China(2021YFB2401100),Science and Technology Project of SGCC(5211DS22002C). （5211DS22002C）
