Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density

Direct current (DC) bus voltage stability is essential for the stable and reliable operation of a DC system. If an oscillation source can be quickly and accurately localized, the oscillation can be adequately eliminated. We propose a method based on the power spectral density for identifying the vol...

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Main Authors: Zida Zhao, Ke Peng, Richang Xian, Xinhui Zhang
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:Journal of Modern Power Systems and Clean Energy
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10026486/
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author Zida Zhao
Ke Peng
Richang Xian
Xinhui Zhang
author_facet Zida Zhao
Ke Peng
Richang Xian
Xinhui Zhang
author_sort Zida Zhao
collection DOAJ
description Direct current (DC) bus voltage stability is essential for the stable and reliable operation of a DC system. If an oscillation source can be quickly and accurately localized, the oscillation can be adequately eliminated. We propose a method based on the power spectral density for identifying the voltage oscillation source. Specifically, a DC distribution network model combined with the component connection method is developed, and the network is separated into multiple power modules. Compared with a conventional method, the proposed method does not require determining the model parameters of the entire power grid, which is typically challenging. Furthermore, combined with a novel judgment index, the oscillation source can be identified more intuitively and clearly to enhance the applicability to real power grids. The performance of the proposed method has been evaluated using the MATLAB/Simulink software and PLECS RT Box experimental platform. The simulation and experimental results verify that the proposed method can accurately identify oscillation sources in a DC distribution network.
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spelling doaj.art-80c7c8444e6549bd93d1da7a54762def2023-02-21T00:03:48ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202023-01-0111115616710.35833/MPCE.2022.00042310026486Localization of Oscillation Source in DC Distribution Network Based on Power Spectral DensityZida Zhao0Ke Peng1Richang Xian2Xinhui Zhang3Shandong University of Technology,Zibo,ChinaShandong University of Technology,Zibo,ChinaShandong University of Technology,Zibo,ChinaShandong University of Technology,Zibo,ChinaDirect current (DC) bus voltage stability is essential for the stable and reliable operation of a DC system. If an oscillation source can be quickly and accurately localized, the oscillation can be adequately eliminated. We propose a method based on the power spectral density for identifying the voltage oscillation source. Specifically, a DC distribution network model combined with the component connection method is developed, and the network is separated into multiple power modules. Compared with a conventional method, the proposed method does not require determining the model parameters of the entire power grid, which is typically challenging. Furthermore, combined with a novel judgment index, the oscillation source can be identified more intuitively and clearly to enhance the applicability to real power grids. The performance of the proposed method has been evaluated using the MATLAB/Simulink software and PLECS RT Box experimental platform. The simulation and experimental results verify that the proposed method can accurately identify oscillation sources in a DC distribution network.https://ieeexplore.ieee.org/document/10026486/Direct current (DC) distribution networkoscillation sourcecomponent connection methodpower spectral density
spellingShingle Zida Zhao
Ke Peng
Richang Xian
Xinhui Zhang
Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
Journal of Modern Power Systems and Clean Energy
Direct current (DC) distribution network
oscillation source
component connection method
power spectral density
title Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
title_full Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
title_fullStr Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
title_full_unstemmed Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
title_short Localization of Oscillation Source in DC Distribution Network Based on Power Spectral Density
title_sort localization of oscillation source in dc distribution network based on power spectral density
topic Direct current (DC) distribution network
oscillation source
component connection method
power spectral density
url https://ieeexplore.ieee.org/document/10026486/
work_keys_str_mv AT zidazhao localizationofoscillationsourceindcdistributionnetworkbasedonpowerspectraldensity
AT kepeng localizationofoscillationsourceindcdistributionnetworkbasedonpowerspectraldensity
AT richangxian localizationofoscillationsourceindcdistributionnetworkbasedonpowerspectraldensity
AT xinhuizhang localizationofoscillationsourceindcdistributionnetworkbasedonpowerspectraldensity