南方电网技术2026，Vol.20Issue(1)：88-97,130,11.DOI:10.13648/j.cnki.issn1674-0629.2026.01.009
柔性直流系统送受端频率耦合控制方法与稳定性分析
Frequency Coupling Control Method and Stability Analysis of Sending and Receiving Ends Power Grids Based on MMC-HVDC Systems
摘要
Abstract
To mitigate the negative impact of modular multilevel converter(MMC)based high voltage direct current(HVDC)systems partitioning on frequency stability,a method for frequency coupling control of the sending and receiving ends is proposed,and the system stability after adopting this method is analyzed.Firstly,for the receiving-end MMC station,a coupling additional control of DC voltage and AC frequency is proposed,mapping changes in AC frequency to the DC voltage signal.Secondly,for the sending-end MMC station,active power additional control is proposed,adjusting the reference value based on changes in sending-end frequency and DC voltage.Then,under the application of the aforementioned control method,a state-space model of the AC/DC system is established to analyze the impact of frequency coupling control on system stability.Finally,tests are conducted in a modi-fied IEEE 11-bus system to validate the effectiveness of the proposed frequency coupling control method and the correctness of stabil-ity analysis results.关键词
交流电网分区/柔性直流系统/频率耦合控制/稳定性分析Key words
AC power grid partitioning/MMC-HVDC/frequency coupling control/stability analysis分类
信息技术与安全科学引用本文复制引用
周月宾,陈煜坤,李坡,王国腾,黄莹..柔性直流系统送受端频率耦合控制方法与稳定性分析[J].南方电网技术,2026,20(1):88-97,130,11.基金项目
直流输电技术全国重点实验室项目(SKLHVDC-2023-KF-07).Supported by the State Key Laboratory of HVDC(SKLHVDC-2023-KF-07). （SKLHVDC-2023-KF-07）
