Impedance based stability analysis of VSC-based HVDC system

被引：0

作者：

Amin, Mohammad ^{[1
]}

Molinas, Marta ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Engn Cybernet, N-7491 Trondheim, Norway

来源：

2015 IEEE EINDHOVEN POWERTECH | 2015年

关键词：

Impedance analysis; Stability Analysis; VSC control; HVDC; Nyquist Stability Criteria;

D O I：

暂无

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：

With increasing activities in development of Voltage Source Converter (VSC) based High Voltage dc (HVDC) transmission system, it is necessary to pre-asses their impact on system stability before connecting to the main ac grid. Existing approaches to study such instability are mainly based on converter control models and do not include the effects of grid impedance. This paper presents the stability analysis of VSC-based HVDC system which includes controller dynamics and also main ac grid impedance. It is shown that the system will remain stable as longs as the ratio of dc system impedance and HVDC converter dc input impedance satisfies the Nyquist stability criterion. An analytical linearized model of a point-to-point connection HVDC system is developed to demonstrate the application of this method and the result is compared with nonlinear model developed in matlab/simulink association with simpower system.

引用

页数：6

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