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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2510.12914 |
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| _version_ | 1866908593608982528 |
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| author | Liu, Zhi Liu, Chengxi Han, Jiangbei Qiu, Rui Liu, Mingyuan |
| author_facet | Liu, Zhi Liu, Chengxi Han, Jiangbei Qiu, Rui Liu, Mingyuan |
| contents | This paper proposes a wideband composite sequence impedance model (WCSIM)-based analysis method to evaluate the interactions in power-electronic-based power systems subjected to unbalanced grid faults or with unbalanced loads. The WCSIM-based method intuitively assesses the impact of the small-signal interconnection among the positive-, negative-, and zero-sequence circuits on the interaction stability of unbalanced power systems. The effectiveness of this method is demonstrated using a permanent magnet synchronous generator-based weak grid system under a single-line-to-ground fault (SLGF). Frequency scanning results and controller hardware-in-loop tests validate both the correctness of the WCSIM and the effectiveness of the WCSIM-based analysis method. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_12914 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Wideband Composite Sequence Impedance Model for Evaluation of Interactions in Unbalanced Power-Electronic-Based Power Systems Liu, Zhi Liu, Chengxi Han, Jiangbei Qiu, Rui Liu, Mingyuan Systems and Control This paper proposes a wideband composite sequence impedance model (WCSIM)-based analysis method to evaluate the interactions in power-electronic-based power systems subjected to unbalanced grid faults or with unbalanced loads. The WCSIM-based method intuitively assesses the impact of the small-signal interconnection among the positive-, negative-, and zero-sequence circuits on the interaction stability of unbalanced power systems. The effectiveness of this method is demonstrated using a permanent magnet synchronous generator-based weak grid system under a single-line-to-ground fault (SLGF). Frequency scanning results and controller hardware-in-loop tests validate both the correctness of the WCSIM and the effectiveness of the WCSIM-based analysis method. |
| title | A Wideband Composite Sequence Impedance Model for Evaluation of Interactions in Unbalanced Power-Electronic-Based Power Systems |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2510.12914 |