High-Frequency Oscillation Mechanism Analysis and Suppression Strategy of Grid-Forming Control MMC-HVDC

被引：7
|
作者：
Lin, Lei [1 ,2 ]
Zeng, Qianqian [1 ,2 ]
Zhu, Jianhang [1 ,2 ,3 ]
Shi, Xiaojie [1 ,2 ]
Hu, Jiabing [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Wuhan 430074, Peoples R China
[3] HUST, Inst Artificial Intelligence, Wuhan 430074, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2023年 / 38卷 / 03期
关键词：
Hafnium oxide; Oscillators; Analytical models; HVDC transmission; Eigenvalues and eigenfunctions; Voltage control; Power system dynamics; Grid forming control (GFMC); modular multilevel converter (MMC); high-frequency oscillation (HFO); oscillation mechanism; suppression strategy; INVERTERS; PARAMETERS; RESONANCE; STABILITY; DESIGN;
D O I：
10.1109/TPWRD.2022.3220338
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, several high-frequency oscillation (HFO) events have occurred in the modular multilevel converter (MMC) based HVDC (MMC-HVDC) projects, threatening the safety and reliability of power systems. Existing studies only focus on the HFO of MMC-HVDC with grid-following control (GFWC) but less on the HFO of MMC-HVDC with grid-forming control (GFMC). Therefore, this paper establishes the small-signal model of MMC-HVDC with GFMC through the dynamic phasor method. Then, the impact of different parameters on the HFO is discussed. Unlike MMC-HVDC with GFWC, the outer loop control of MMC-HVDC with GFMC has a great influence on HFO. Meanwhile, the existing HFO suppression strategies by adding a low-pass filter (LPF) to feedforward control of terminal voltage for MMC-HVDC with GFWC will increase the HFO risk of MMC-HVDC with GFMC. Further, the HFO suppression strategies suitable for MMC-HVDC with GFMC are proposed based on the mechanism analysis results. Finally, the obtained results are verified by the time-domain simulation of the studied system in RT-LAB.
引用
收藏
页码：1588 / 1600
页数：13
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