Frequency Characteristic Analysis of the VSC-HVDC DC Oscillating Power under AC Sub-Synchronous Disturbances

被引：0
|
作者：
Bin, Zijun [1 ]
Feng, Xuan [2 ]
Miao, Zilong [3 ]
Kong, Xiangping [1 ]
Li, Peng [1 ]
Shao, Bingbing [3 ]
机构：
[1] State Grid Jiangsu Elect Power Co Ltd, Elect Power Res Inst, Nanjing 211103, Peoples R China
[2] State Grid Jiangsu Elect Power Co Ltd, Nanjing 210000, Peoples R China
[3] Hefei Univ Technol, Sch Elect Engn & Automat, Hefei 230009, Peoples R China
来源：
ELECTRONICS | 2024年 / 13卷 / 17期
关键词：
voltage source converter-based high voltage direct current (VSC-HVDC); sub-synchronous oscillation (SSO); frequency component; DC-side oscillation; WIND FARMS; CONVERTERS; GENERATOR;
D O I：
10.3390/electronics13173445
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The DC-side response characteristics of the VSC-HVDC transmission system under AC-side sub-synchronous disturbances may lead to the propagation of AC/DC oscillations, and then there may be non-fundamental frequency oscillation on the DC-side. To clarify the interactive influence mechanism and propagation evolution law of the AC and DC side sub-synchronous oscillations in the VSC-HVDC transmission system, the frequency characteristics of the DC-side oscillation power are investigated by considering the effect of converter control links. First, the AC-side voltage and current frequency responses under single/multiple SSO components are analyzed. Secondly, the frequency characteristics of the DC-side power after the injection of single/multiple SSO components are investigated. Meanwhile, the effect of system control parameters on the sub-synchronous responses of the DC-side power is investigated. Finally, the theoretical analysis is verified with PSCAD/EMTDC simulations. The results show that under the influence of the AC-side SSO components, the DC-side of VSC-HVDC faces the risk of multi-frequency oscillations; when there are multiple SSO components on the AC-side, there is a coupling between the components, and the system control parameters affect the amplitude of the DC-side oscillation power.
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页数：17
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