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Analysis on Chaotic Oscillation in the Seven-order Model ofThree-node Power System with Power Disturbance(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2018年01期
Page:
1-
Research Field:
电气与电子工程
Publishing date:

Info

Title:
Analysis on Chaotic Oscillation in the Seven-order Model ofThree-node Power System with Power Disturbance
Author(s):
Wang Yaoda; Min Fuhong; Zhou Qi; Hu Zhenxin
School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China
Keywords:
three-node power system; seven-order power system; bifurcation; power disturbance
PACS:
TP271
DOI:
10.3969/j.issn.1672-1292.2018.01.001
Abstract:
Chaotic oscillation is an inherent phenomenon of nonlinear power system,which is very harmful for the large-scale interconnected power grid. Based on the three-node power system,a seven-order mathematical model of this system is deduced in this paper. The dynamic characteristics of the three-node power system are analyzed through bifurcation diagrams and phase portraits,and the influence of system parameters varying on the operation states are studied as well. Then the electromagnetic power disturbance and the load power disturbance are introduced into the system model,which makes the model closer to the actual situation.The changing process in dynamic behaviors of the system under the impact of the disturbance amplitude and frequency are illustrated with bifurcation diagrams and phase portraits for specific parameters are given respectively. Moreover,it is found that the operating state of the system can reach periodic motions from the chaotic motions when the amplitude and frequency of perturbation terms are within certain ranges.

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