Numerical Investigation on the Damping Property in Power System Transient Behavior

被引:8
|
作者
Jiang, Ningqiang [1 ]
Chiang, Hsiao-Dong [2 ]
机构
[1] NJUST, Dept Elect Engn, Sch Automat, Nanjing 210094, Jiangsu, Peoples R China
[2] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA
关键词
Damping property; power system; transient behavior;
D O I
10.1109/TPWRS.2012.2230030
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
Power system damping in the transient condition generally depends on system parameters and modeling hypotheses. The dependence can be very nonlinear. In this paper, a polynomial approximation method is proposed to obtain a representation of the damping torque and damping torque coefficient of the original detailed stability model. Investigation on the single-machine-infinite-bus system reveals that the damping torque coefficient is not a constant in transient condition. The generator parameters relative to transient loss have significant impact on transient damping. In addition, the impact from excitation system, load, transmission line and modeling hypotheses are also investigated. It is found that the influences of torque-speed characteristics and network transients on transient damping are very small. This work provides insight in identifying the main factors that affect power system transient behavior. These factors are useful to build appropriate models for transient stability analysis.
引用
收藏
页码:2986 / 2993
页数:8
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