Active and reactive power control of a VSC-HVdc

被引:115
作者
Latorre, H. F. [1 ]
Ghandhari, M. [1 ]
Soder, L. [1 ]
机构
[1] Royal Inst Technol, S-10044 Stockholm, Sweden
关键词
control Lyapunov functions; modal analysis; power oscillations damping; transient stability; voltage support; VSC-HVdc;
D O I
10.1016/j.epsr.2008.03.003
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 [电气工程]; 0809 [电子科学与技术];
摘要
Voltage source converter-based HVdc(VSC-HVdc) systems have the ability to rapidly control the transmitted active power, and also to independently exchange reactive power with transmissions systems. Due to these characteristics, VSC-HVdcs with a suitable control scheme can offer an alternative means to enhance transient stability, to improve power oscillations damping, and to provide voltage support. In this paper, a VSC-HVdc is represented by a simple model, referred to as the injection model. Based on this model, an energy function is developed for a multi-machine power system including VSC-HVdcs. Furthermore, based on Lyapunov theory (control Lyapunov function) and small signal analysis (modal analysis), various control strategies for transient stability and damping of low-frequency power oscillations are derived. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1756 / 1763
页数:8
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