Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer
In order to improve the performance of dynamic voltage restorer (DVR) in controlling asymmetrical voltage sag fault, a fractional order plus-negative sequence decoupling control strategy based on instantaneous symmetric component method is proposed and applied to three-phase four-bridge inverter DVR...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2025-01-01
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| Series: | 电力工程技术 |
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| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/230824051 |
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| author | WU Chaojun WANG Zhenyue YANG Ningning SHAO Wenquan |
| author_facet | WU Chaojun WANG Zhenyue YANG Ningning SHAO Wenquan |
| author_sort | WU Chaojun |
| collection | DOAJ |
| description | In order to improve the performance of dynamic voltage restorer (DVR) in controlling asymmetrical voltage sag fault, a fractional order plus-negative sequence decoupling control strategy based on instantaneous symmetric component method is proposed and applied to three-phase four-bridge inverter DVR system. Firstly, the partial sequence decoupling mathematical model of the DVR system is obtained by using the symmetric component method. Secondly, to solve the problem that the traditional symmetric component method is not suitable for the analysis of the transient process of the system, the positive and negative zero sequence components of the instantaneous value of the asymmetric voltage and current signal are obtained by using the instantaneous symmetric component method. Then, the integer order plus-negative order decoupling control strategy is extended to fractional order, and the frequency domain method is combined with the robustness condition when the gain changes to correct the relevant parameters. Finally, the simulation results verify the feasibility of the fractional order plus-negative sequence decoupling control strategy applied to the DVR system, and the proposed strategy has better dynamic response speed and anti-interference performance than the traditional plus-negative sequence decoupling control startegy. |
| format | Article |
| id | doaj-art-6c2731862e6246d7976201fff73b3337 |
| institution | Kabale University |
| issn | 2096-3203 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj-art-6c2731862e6246d7976201fff73b33372025-02-08T08:40:18ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032025-01-01441606810.12158/j.2096-3203.2025.01.007230824051Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorerWU Chaojun0WANG Zhenyue1YANG Ningning2SHAO Wenquan3School of Electronic Information, Xi′an Polytechnic University, Xi′an 710048, ChinaSchool of Electronic Information, Xi′an Polytechnic University, Xi′an 710048, ChinaSchool of Electrical Engineering, Xi′an University of Technology, Xi′an 710048, ChinaSchool of Electronic Information, Xi′an Polytechnic University, Xi′an 710048, ChinaIn order to improve the performance of dynamic voltage restorer (DVR) in controlling asymmetrical voltage sag fault, a fractional order plus-negative sequence decoupling control strategy based on instantaneous symmetric component method is proposed and applied to three-phase four-bridge inverter DVR system. Firstly, the partial sequence decoupling mathematical model of the DVR system is obtained by using the symmetric component method. Secondly, to solve the problem that the traditional symmetric component method is not suitable for the analysis of the transient process of the system, the positive and negative zero sequence components of the instantaneous value of the asymmetric voltage and current signal are obtained by using the instantaneous symmetric component method. Then, the integer order plus-negative order decoupling control strategy is extended to fractional order, and the frequency domain method is combined with the robustness condition when the gain changes to correct the relevant parameters. Finally, the simulation results verify the feasibility of the fractional order plus-negative sequence decoupling control strategy applied to the DVR system, and the proposed strategy has better dynamic response speed and anti-interference performance than the traditional plus-negative sequence decoupling control startegy.https://www.epet-info.com/dlgcjsen/article/abstract/230824051voltage dipdynamic voltage restorer (dvr)three-phase four-leg inverterinstantaneous symmetric component methodplus-negative sequence decoupling controlfractional order control |
| spellingShingle | WU Chaojun WANG Zhenyue YANG Ningning SHAO Wenquan Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer 电力工程技术 voltage dip dynamic voltage restorer (dvr) three-phase four-leg inverter instantaneous symmetric component method plus-negative sequence decoupling control fractional order control |
| title | Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer |
| title_full | Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer |
| title_fullStr | Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer |
| title_full_unstemmed | Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer |
| title_short | Fractional order plus-negative sequence decoupling control strategy for dynamic voltage restorer |
| title_sort | fractional order plus negative sequence decoupling control strategy for dynamic voltage restorer |
| topic | voltage dip dynamic voltage restorer (dvr) three-phase four-leg inverter instantaneous symmetric component method plus-negative sequence decoupling control fractional order control |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/230824051 |
| work_keys_str_mv | AT wuchaojun fractionalorderplusnegativesequencedecouplingcontrolstrategyfordynamicvoltagerestorer AT wangzhenyue fractionalorderplusnegativesequencedecouplingcontrolstrategyfordynamicvoltagerestorer AT yangningning fractionalorderplusnegativesequencedecouplingcontrolstrategyfordynamicvoltagerestorer AT shaowenquan fractionalorderplusnegativesequencedecouplingcontrolstrategyfordynamicvoltagerestorer |