A Sparse and Low-Order Implementation for Discretization-Based Eigen-Analysis of Power Systems with Time-Delays

Chongtao Li; Yiping Chen; Tao Ding; Zhengchun Du; Fangxing Li

doi:10.1109/TPWRS.2019.2940419

A Sparse and Low-Order Implementation for Discretization-Based Eigen-Analysis of Power Systems with Time-Delays

Chongtao Li
, Yiping Chen
, Tao Ding
, Zhengchun Du
, Fangxing Li

School of Electrical Engineering

Xi'an Jiaotong University
CSG Control Centre
University of Tennessee

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

This letter presents a new discretization model for computing the rightmost eigenvalues of power systems with time-delays. In this model, only the retarded variables are concerned in discretization. Since the number of retarded terms is extremely small compared with that of all variables, the proposed technique significantly reduces the order of the existing discretization model, thereby alleviating the computational burden. The accuracy and efficiency of the proposed model are verified and discussed.

Original language	English
Article number	8827629
Pages (from-to)	5091-5094
Number of pages	4
Journal	IEEE Transactions on Power Systems
Volume	34
Issue number	6
DOIs	https://doi.org/10.1109/TPWRS.2019.2940419
State	Published - Nov 2019

Keywords

Chebyshev discretization
Time-delay
delay differential algebraic equations
eigenvalue

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10.1109/TPWRS.2019.2940419

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abstract = "This letter presents a new discretization model for computing the rightmost eigenvalues of power systems with time-delays. In this model, only the retarded variables are concerned in discretization. Since the number of retarded terms is extremely small compared with that of all variables, the proposed technique significantly reduces the order of the existing discretization model, thereby alleviating the computational burden. The accuracy and efficiency of the proposed model are verified and discussed.",

keywords = "Chebyshev discretization, Time-delay, delay differential algebraic equations, eigenvalue",

author = "Chongtao Li and Yiping Chen and Tao Ding and Zhengchun Du and Fangxing Li",

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AU - Li, Chongtao

AU - Chen, Yiping

AU - Ding, Tao

AU - Du, Zhengchun

AU - Li, Fangxing

PY - 2019/11

Y1 - 2019/11

N2 - This letter presents a new discretization model for computing the rightmost eigenvalues of power systems with time-delays. In this model, only the retarded variables are concerned in discretization. Since the number of retarded terms is extremely small compared with that of all variables, the proposed technique significantly reduces the order of the existing discretization model, thereby alleviating the computational burden. The accuracy and efficiency of the proposed model are verified and discussed.

AB - This letter presents a new discretization model for computing the rightmost eigenvalues of power systems with time-delays. In this model, only the retarded variables are concerned in discretization. Since the number of retarded terms is extremely small compared with that of all variables, the proposed technique significantly reduces the order of the existing discretization model, thereby alleviating the computational burden. The accuracy and efficiency of the proposed model are verified and discussed.

KW - Chebyshev discretization

KW - Time-delay

KW - delay differential algebraic equations

KW - eigenvalue

UR - https://www.scopus.com/pages/publications/85074461855

U2 - 10.1109/TPWRS.2019.2940419

DO - 10.1109/TPWRS.2019.2940419

M3 - 文章

AN - SCOPUS:85074461855

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JO - IEEE Transactions on Power Systems

JF - IEEE Transactions on Power Systems

IS - 6

M1 - 8827629

ER -

A Sparse and Low-Order Implementation for Discretization-Based Eigen-Analysis of Power Systems with Time-Delays

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Keywords

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