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CLC number: TM734

On-line Access: 2009-05-02

Received: 2008-03-04

Revision Accepted: 2008-07-08

Crosschecked: 2009-04-10

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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.6 P.868~876


Mixed nonlinear dynamic voltage phasor tracing method based on WAMS/SCADA

Author(s):  Xiao-gang CHEN, Yong-hui YI, Wei WANG, Quan-yuan JIANG, Chuang-xin GUO, Yi-jia CAO

Affiliation(s):  School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   jqy@zju.edu.cn

Key Words:  Wide area measurement system (WAMS), Supervisory control and data acquisition (SCADA) system, Observability, Dynamic tracing, Nonlinear equation

Xiao-gang CHEN, Yong-hui YI, Wei WANG, Quan-yuan JIANG, Chuang-xin GUO, Yi-jia CAO. Mixed nonlinear dynamic voltage phasor tracing method based on WAMS/SCADA[J]. Journal of Zhejiang University Science A, 2009, 10(6): 868~876.

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author="Xiao-gang CHEN, Yong-hui YI, Wei WANG, Quan-yuan JIANG, Chuang-xin GUO, Yi-jia CAO",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T Mixed nonlinear dynamic voltage phasor tracing method based on WAMS/SCADA
%A Xiao-gang CHEN
%A Yong-hui YI
%A Quan-yuan JIANG
%A Chuang-xin GUO
%A Yi-jia CAO
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 6
%P 868~876
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820150

T1 - Mixed nonlinear dynamic voltage phasor tracing method based on WAMS/SCADA
A1 - Xiao-gang CHEN
A1 - Yong-hui YI
A1 - Wei WANG
A1 - Quan-yuan JIANG
A1 - Chuang-xin GUO
A1 - Yi-jia CAO
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 6
SP - 868
EP - 876
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820150

By considering the static voltage characteristic of the load, we propose a WAMS/SCADA mixed nonlinear method to estimate the voltage of unobservable buses caused by topology change or phasor measurement unit (PMU) malfunction in a power system. By modeling the load characteristic with data from SCADA, we employed the Gauss-Seidel method to solve the nonlinear equations and estimate the voltage of unobservable buses with the high precision voltages of neighboring buses measured by a PMU. Simulations were carried out on the IEEE 39-bus system, and the results show that this novel method can dynamically and accurately trace the variation of the voltage phasor of the unobservable buses.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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