Transient dynamics in electric power system with DC transmission: fractal growth in stability boundary

被引：8
|
作者：
Susuki, Y [1 ]
Hikihara, T [1 ]
机构：
[1] Kyoto Univ, Dept Elect Engn, Nishikyo Ku, Kyoto 6158510, Japan
来源：
IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS | 2005年 / 152卷 / 02期
关键词：
D O I：
10.1049/ip-cds:20040533
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：
The paper is concerned with transient dynamics and stability of an electric power system with DC transmission. Nowadays, DC transmission systems are widely applied to conventional electric power systems. However, the transient dynamics of AC/DC power systems, affected by the active power that flows into DC transmissions, is not entirely understood. The paper derives a non-symmetrical swing equation system to analyse the transient dynamics of an AC/DC power system. The non-symmetry implies a unidirectional component of an external forcing that corresponds to both DC power and exciting power swing. The paper discusses a stability boundary and its qualitative change in the non-symmetrical swing equation system. An understanding of the stability boundary gives an important clue to the transient dynamics of AC/DC power systems. Fractal structure growth in the stability boundary caused by the change of DC power flow is described. The existence of a fractal boundary implies that the system behaviour becomes chaotic and unpredictable, depending on the operation of the DC transmission.
引用
收藏
页码：159 / 164
页数：6
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