International Transactions on Electrical Energy Systems

Volume 26, Issue 12 pp. 2657-2671

Research Article

Study on dispersion phenomena of electromechanical disturbance propagation in power systems

Ningning Ma,

Ningning Ma

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 Sichuan Province, China

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Delin Wang,

Corresponding Author

Delin Wang

[email protected]

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 Sichuan Province, China

Correspondence to: Delin Wang, School of Electrical Engineering, Southwest Jiaotong, University, Chengdu 610031, Sichuan Province, China.

E-mail: [email protected]

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Ningning Ma,

Ningning Ma

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 Sichuan Province, China

Search for more papers by this author

Delin Wang,

Corresponding Author

Delin Wang

[email protected]

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 Sichuan Province, China

Correspondence to: Delin Wang, School of Electrical Engineering, Southwest Jiaotong, University, Chengdu 610031, Sichuan Province, China.

E-mail: [email protected]

Search for more papers by this author

First published: 09 June 2016

https://doi.org/10.1002/etep.2226

Citations: 6

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Summary

The physical phenomenon of electromechanical disturbance propagation has been modeled in the form of a wave. Usually wave has dispersion features while propagating with a nonlinear medium. In this paper, the dispersion relation of discrete- and continuum-model for the power system is derived. And then, the influences on dispersion characteristics of different factors (such as generator internal reactance and transmission line resistance) are studied. The relationships of the propagation velocity and attenuation characteristics of disturbance with the power grid's parameters are revealed. Finally, this paper shows simulations based on a chain system and a New England benchmark system to help to validate the rationality and accuracy of the theoretical analysis. This work is helpful to analyze the electromechanical oscillations of power systems and control the propagation of disturbance. Copyright © 2016 John Wiley & Sons, Ltd.

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