Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids
Voltage-source converter-based multiterminal high-voltage direct current (VSC-MTDC) systems/grids are prone to system instability. This critical issue is overlooked in the literature. In order to improve system stability, this paper proposes an effective active damping method as a remedy to suppress...
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| Format: | Article |
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IEEE
2017-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8015119/ |
| _version_ | 1818927911520960512 |
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| author | Yuchao Liu Ali Raza Kumars Rouzbehi Binbin Li Dianguo Xu Barry W. Williams |
| author_facet | Yuchao Liu Ali Raza Kumars Rouzbehi Binbin Li Dianguo Xu Barry W. Williams |
| author_sort | Yuchao Liu |
| collection | DOAJ |
| description | Voltage-source converter-based multiterminal high-voltage direct current (VSC-MTDC) systems/grids are prone to system instability. This critical issue is overlooked in the literature. In order to improve system stability, this paper proposes an effective active damping method as a remedy to suppress voltage and power resonances in the VSC-MTDC grids by injecting damping signals into the inner current loops of VSC-MTDC stations. With dynamic regulation of the damping current, resonance is suppressed by power converter controllers without any additional current and voltage measurement. In this paper, modeling and stability analysis of the VSC-MTDC system/grid is presented considering the dc-side energy storage components, and control with a droop control structure. Then, single-frequency and multifrequency resonance mechanisms of dc-bus voltage and power in the event of transients are analyzed. Later, the stability effect of the MTDC system/grid inductance and capacitance values to the resonance amplitude and frequency droop coefficients is investigated. A PSCAD/EMTDC platform is developed to conduct dynamic simulations, and a scaled-down four-terminal 20-kW experimental prototype is used to validate the effectiveness of the proposed control methodology. |
| first_indexed | 2024-12-20T03:20:32Z |
| format | Article |
| id | doaj.art-e2e6cad2b70240c9880f468a7d39b579 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-20T03:20:32Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-e2e6cad2b70240c9880f468a7d39b5792022-12-21T19:55:14ZengIEEEIEEE Access2169-35362017-01-015169741698410.1109/ACCESS.2017.27405678015119Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC GridsYuchao Liu0https://orcid.org/0000-0002-3317-2840Ali Raza1Kumars Rouzbehi2Binbin Li3Dianguo Xu4Barry W. Williams5Department of Electrical Engineering, Harbin Institute of Technology, Harbin, ChinaDepartment of Electrical Engineering, The University of Lahore, Lahore, PakistanLoyola University Andalucia, Seville, SpainDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin, ChinaUniversity of Strathclyde, Glasgow, U.K.Voltage-source converter-based multiterminal high-voltage direct current (VSC-MTDC) systems/grids are prone to system instability. This critical issue is overlooked in the literature. In order to improve system stability, this paper proposes an effective active damping method as a remedy to suppress voltage and power resonances in the VSC-MTDC grids by injecting damping signals into the inner current loops of VSC-MTDC stations. With dynamic regulation of the damping current, resonance is suppressed by power converter controllers without any additional current and voltage measurement. In this paper, modeling and stability analysis of the VSC-MTDC system/grid is presented considering the dc-side energy storage components, and control with a droop control structure. Then, single-frequency and multifrequency resonance mechanisms of dc-bus voltage and power in the event of transients are analyzed. Later, the stability effect of the MTDC system/grid inductance and capacitance values to the resonance amplitude and frequency droop coefficients is investigated. A PSCAD/EMTDC platform is developed to conduct dynamic simulations, and a scaled-down four-terminal 20-kW experimental prototype is used to validate the effectiveness of the proposed control methodology.https://ieeexplore.ieee.org/document/8015119/MultiterminalVSC-HVDCdc-LC filterresonance suppressionactive damping |
| spellingShingle | Yuchao Liu Ali Raza Kumars Rouzbehi Binbin Li Dianguo Xu Barry W. Williams Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids IEEE Access Multiterminal VSC-HVDC dc-LC filter resonance suppression active damping |
| title | Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids |
| title_full | Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids |
| title_fullStr | Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids |
| title_full_unstemmed | Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids |
| title_short | Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids |
| title_sort | dynamic resonance analysis and oscillation damping of multiterminal dc grids |
| topic | Multiterminal VSC-HVDC dc-LC filter resonance suppression active damping |
| url | https://ieeexplore.ieee.org/document/8015119/ |
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