Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix
The Bus participation factor (PF) has been identified as an effective method for identifying the power converters and buses contributing significantly to harmonic instability. However, the PF depends on the system’s eigenvalue calculations, which require extensive computational resources and present...
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Elsevier
2025-05-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525001115 |
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| author | Donghui Zhang Xin Chen Fan Yang |
| author_facet | Donghui Zhang Xin Chen Fan Yang |
| author_sort | Donghui Zhang |
| collection | DOAJ |
| description | The Bus participation factor (PF) has been identified as an effective method for identifying the power converters and buses contributing significantly to harmonic instability. However, the PF depends on the system’s eigenvalue calculations, which require extensive computational resources and presents a significant challenge in identifying the oscillation source in multi-converter power systems (MCPS). This paper presents a novel approach to active impedance perturbation localization based on the derivation of stability margin sensitivity from the impedance participation factor. The method is designed to be universally applicable to large-scale MCPS with intricate configurations to simplify the localization of the oscillation source without the computational complexity involved in eigenvalue calculations. Moreover, to reinforce the system’s stability, an impedance-coordinated control approach is proposed to enhance the robustness of MCPS. This strategy employs virtual impedance reshaping grounded in the stability margin sensitivity impedance assignment. Subsequently, a 10-bus MCPS is utilized as the test system, demonstrating the ease of implementing the proposed method for localizing dominant oscillatory converters. The effectiveness and accuracy of the proposed method are substantiated through specific case studies and hardware-in-the-loop (HIL) experimental results.This work was supported in part by the National Natural Science Foundation of China (52277186), and in part by the Jiangsu Postgraduate Research and Practical Innovation Project (KYCX23_0375). |
| format | Article |
| id | doaj-art-f73764f96cc84f2d9aaa346f736bde2e |
| institution | DOAJ |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-f73764f96cc84f2d9aaa346f736bde2e2025-08-20T03:00:05ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-05-0116611056010.1016/j.ijepes.2025.110560Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrixDonghui Zhang0Xin Chen1Fan YangJiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCorresponding author.; Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe Bus participation factor (PF) has been identified as an effective method for identifying the power converters and buses contributing significantly to harmonic instability. However, the PF depends on the system’s eigenvalue calculations, which require extensive computational resources and presents a significant challenge in identifying the oscillation source in multi-converter power systems (MCPS). This paper presents a novel approach to active impedance perturbation localization based on the derivation of stability margin sensitivity from the impedance participation factor. The method is designed to be universally applicable to large-scale MCPS with intricate configurations to simplify the localization of the oscillation source without the computational complexity involved in eigenvalue calculations. Moreover, to reinforce the system’s stability, an impedance-coordinated control approach is proposed to enhance the robustness of MCPS. This strategy employs virtual impedance reshaping grounded in the stability margin sensitivity impedance assignment. Subsequently, a 10-bus MCPS is utilized as the test system, demonstrating the ease of implementing the proposed method for localizing dominant oscillatory converters. The effectiveness and accuracy of the proposed method are substantiated through specific case studies and hardware-in-the-loop (HIL) experimental results.This work was supported in part by the National Natural Science Foundation of China (52277186), and in part by the Jiangsu Postgraduate Research and Practical Innovation Project (KYCX23_0375).http://www.sciencedirect.com/science/article/pii/S0142061525001115Participation factorMulti-converter power systemsOscillatory localizationImpedance perturbationImpedance-coordinated |
| spellingShingle | Donghui Zhang Xin Chen Fan Yang Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix International Journal of Electrical Power & Energy Systems Participation factor Multi-converter power systems Oscillatory localization Impedance perturbation Impedance-coordinated |
| title | Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix |
| title_full | Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix |
| title_fullStr | Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix |
| title_full_unstemmed | Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix |
| title_short | Oscillatory localization and impedance-coordinated method for multi-converter power systems based on the impedance network matrix |
| title_sort | oscillatory localization and impedance coordinated method for multi converter power systems based on the impedance network matrix |
| topic | Participation factor Multi-converter power systems Oscillatory localization Impedance perturbation Impedance-coordinated |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525001115 |
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