Interaction Quantification of MTDC Systems Connected with Weak AC Grids
Regular Papers|更新时间:2026-10-15
|
Interaction Quantification of MTDC Systems Connected with Weak AC Grids
Interaction Quantification of MTDC Systems Connected with Weak AC Grids
中国电机工程学会电力与能源系统学报(英文)2024年10卷第5期 页码:2088-2099
作者机构:
1. Engineering Research Center of Metallurgical Automation and Measurement Technology, Wuhan University of Science and Technology,Wuhan,China
2. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan,China
3. College of Control Science and Engineering, Zhejiang University,Hangzhou,China
4. State Grid Hubei Economic Research Institute,Wuhan,China
Wanning Zheng, Jiabing Hu, Li Chai, 等. Interaction Quantification of MTDC Systems Connected with Weak AC Grids[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2088-2099.
Wanning Zheng, Jiabing Hu, Li Chai, et al. Interaction Quantification of MTDC Systems Connected with Weak AC Grids[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2088-2099.
Wanning Zheng, Jiabing Hu, Li Chai, 等. Interaction Quantification of MTDC Systems Connected with Weak AC Grids[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2088-2099.DOI: 10.17775/CSEEJPES.2022.08260.
Wanning Zheng, Jiabing Hu, Li Chai, et al. Interaction Quantification of MTDC Systems Connected with Weak AC Grids[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2088-2099.DOI: 10.17775/CSEEJPES.2022.08260.
Interaction Quantification of MTDC Systems Connected with Weak AC Grids
The small-signal stability of multi-terminal high voltage direct current (HVDC) systems has become one of the vital issues in modern power systems. Interactions among voltage source converters (VSCs) have a significant impact on the stability of the system. This paper proposes an interaction quantification method based on the self-/en-stabilizing coefficients of the general
$\boldsymbol{N}-\mathbf{terminal}$
HVDC system with a weak AC network connection. First
we derive the explicit formulae of self-/en-stabilizing coefficients for any
$\boldsymbol{N}-\mathbf{terminal}$
HVDC system
which can quantify the interactions through different paths analytically. The relation between the self-/en-stabilizing coefficients and the poles of the system can be used to evaluate the impact of the interactions on the system stability effectively. Then
we employ the obtained formulae to analyze the parameter sensitivity and explain how a parameter affects the stability of the system through different paths of interactions. Finally
extensive examples are given to demonstrate the effectiveness of the proposed method.