Voltage Stability Bifurcation Analysis for AC/DC Systems with VSC-HVDC

Voltage Stability Bifurcation Analysis for AC/DC Systems with VSC-HVDC
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采用 VSC-HVDC 的交流/直流系统的电压稳定性分岔分析

DOI:
10.1155/2013/387167
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发表时间:
2013-03
影响因子:
--
通讯作者:
Sun, Guoqiang
Sun, Guoqiang
中科院分区:
--
文献类型:
--
作者:
Wei, Yanfang;Zheng, Zheng;Sun, Yonghui;Wei, Zhinong;Sun, Guoqiang

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提出了一种使用 VSC-HVDC 建模 AC/DC 系统的电压稳定性分岔分析方法。首先简要介绍了VSC-HVDC的稳态功率模型和控制方式。基于VSC-HVDC稳态模型,提出一种改进的顺序迭代潮流算法。然后,利用连续潮流算法和新的时序方法,讨论了系统的电压稳定分岔问题。可以获得P-V曲线的迹线以及系统鞍点分岔点的计算。最后,采用改进的IEEE测试系统来说明该方法的有效性。
A voltage stability bifurcation analysis approach for modeling AC/DC systems with VSC-HVDC is presented. The steady power model and control modes of VSC-HVDC are briefly presented firstly. Based on the steady model of VSC-HVDC, a new improved sequential iterative power flow algorithm is proposed. Then, by use of continuation power flow algorithm with the new sequential method, the voltage stability bifurcation of the system is discussed. The trace of the P-V curves and the computation of the saddle node bifurcation point of the system can be obtained. At last, the modified IEEE test systems are adopted to illustrate the effectiveness of the proposed method.
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