Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity
This paper uses impedance sensitivity to identify the parameters that have dominant influences on the stability of multi-converter systems, which can then efficiently improve system stability. A modified 400 V IEEE 13-bus system with three converters is used as the study case, and a stability improv...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
China electric power research institute
2025-01-01
|
| Series: | CSEE Journal of Power and Energy Systems |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9878000/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850192506563592192 |
|---|---|
| author | Yang Li Zhikang Shuai Junbin Fang Xiangyang Wu |
| author_facet | Yang Li Zhikang Shuai Junbin Fang Xiangyang Wu |
| author_sort | Yang Li |
| collection | DOAJ |
| description | This paper uses impedance sensitivity to identify the parameters that have dominant influences on the stability of multi-converter systems, which can then efficiently improve system stability. A modified 400 V IEEE 13-bus system with three converters is used as the study case, and a stability improvement method for multi-converter systems according to impedance sensitivity is introduced. Sensitivities of the real and imaginary parts of eigenvalues of the system's return-ratio matrix with respect to parameters (including control parameters and grid component parameters) are calculated at the cross-over frequencies, by which the parameters that have dominant influences on the system stability can be identified. Then, according to sensitivities, the system stability can be efficiently improved by adjusting the dominant parameters. Simulations in PSCAD/EMTDC and experiments of the control hardware in the loop validate the effectiveness of the proposed stability analysis method. |
| format | Article |
| id | doaj-art-7b08c3f31f914cdfa7aa42a18cf9e890 |
| institution | OA Journals |
| issn | 2096-0042 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | China electric power research institute |
| record_format | Article |
| series | CSEE Journal of Power and Energy Systems |
| spelling | doaj-art-7b08c3f31f914cdfa7aa42a18cf9e8902025-08-20T02:14:32ZengChina electric power research instituteCSEE Journal of Power and Energy Systems2096-00422025-01-0111131832810.17775/CSEEJPES.2021.041609878000Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance SensitivityYang Li0Zhikang Shuai1Junbin Fang2Xiangyang Wu3College of Electrical and Information Engineering, Hunan University,Changsha,China,410082College of Electrical and Information Engineering, Hunan University,Changsha,China,410082College of Electrical and Information Engineering, Hunan University,Changsha,China,410082College of Electrical and Information Engineering, Hunan University,Changsha,China,410082This paper uses impedance sensitivity to identify the parameters that have dominant influences on the stability of multi-converter systems, which can then efficiently improve system stability. A modified 400 V IEEE 13-bus system with three converters is used as the study case, and a stability improvement method for multi-converter systems according to impedance sensitivity is introduced. Sensitivities of the real and imaginary parts of eigenvalues of the system's return-ratio matrix with respect to parameters (including control parameters and grid component parameters) are calculated at the cross-over frequencies, by which the parameters that have dominant influences on the system stability can be identified. Then, according to sensitivities, the system stability can be efficiently improved by adjusting the dominant parameters. Simulations in PSCAD/EMTDC and experiments of the control hardware in the loop validate the effectiveness of the proposed stability analysis method.https://ieeexplore.ieee.org/document/9878000/Converterimpedance sensitivitysmall-signal modelstability analysisstability improvement |
| spellingShingle | Yang Li Zhikang Shuai Junbin Fang Xiangyang Wu Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity CSEE Journal of Power and Energy Systems Converter impedance sensitivity small-signal model stability analysis stability improvement |
| title | Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity |
| title_full | Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity |
| title_fullStr | Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity |
| title_full_unstemmed | Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity |
| title_short | Stability Improvement Method for Multi-Converter Distribution Systems Based on Impedance Sensitivity |
| title_sort | stability improvement method for multi converter distribution systems based on impedance sensitivity |
| topic | Converter impedance sensitivity small-signal model stability analysis stability improvement |
| url | https://ieeexplore.ieee.org/document/9878000/ |
| work_keys_str_mv | AT yangli stabilityimprovementmethodformulticonverterdistributionsystemsbasedonimpedancesensitivity AT zhikangshuai stabilityimprovementmethodformulticonverterdistributionsystemsbasedonimpedancesensitivity AT junbinfang stabilityimprovementmethodformulticonverterdistributionsystemsbasedonimpedancesensitivity AT xiangyangwu stabilityimprovementmethodformulticonverterdistributionsystemsbasedonimpedancesensitivity |