Grid-forming Control of VSC-HVDC Systems Connecting Asynchronous Power Grids

被引：0
|
作者：
Liu, Mingqun [1 ]
Zeng, Guanming [2 ]
He, Xin [1 ]
Tu, Liang [3 ]
He, Peng [1 ]
Zhu, Yihua [4 ]
机构：
[1] Yunnan Power Grid Co Ltd, Elect Power Res Inst, Kunming, Yunnan, Peoples R China
[2] China Southern Power Grid, Elect Power Res Inst, State Key Lab HVDC, Natl Energy Power Grid,Technol R&D Ctr, Guangzhou, Peoples R China
[3] China Southern Power Grid, Guangdong Prov Key Lab Intelligent Operat & Contr, CSG Key Lab Power Syst Simulat, Elect Power Res Inst, Guangzhou, Peoples R China
[4] China Southern Power Grid, Elect Power Res Inst, State Key Lab HVDC, CSG Key Lab Power Syst Simulat, Guangzhou, Peoples R China
来源：
2024 4TH POWER SYSTEM AND GREEN ENERGY CONFERENCE, PSGEC 2024 | 2024年
关键词：
VSC-HVDC; grid-forming; asynchronous grid; frequency support; SYNCHRONIZATION;
D O I：
10.1109/PSGEC62376.2024.10721102
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Interconnecting asynchronous power grids with the VSC-HVDC transmission is an important trend. To enhance the weak grid operation performance and grid frequency response capability of the VSC-HVDC system, a novel grid-forming without using the phase-locked-loop is applied in both ends of the VSC-HVDC system. The DC voltage-Active power droop-based grid-synchronization method is utilized. With the proposed method, the sending and the receiving end MMCs perform like a synchronous motor and a synchronous generator, respectively. When the frequency changes in either grid, the system can automatically response to it and change the active power transmission by VSC-HVDC to achieve primary frequency regulation and active frequency support. Finally, the validity of the dual-end grid-forming control is verified based on the simulations in PSCAD/EMTDC.
引用
收藏
页码：302 / 306
页数：5
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