Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame
Dual second-order generalized integrator phase-locked loop (DSOGI-PLL) is widely used in grid-connected system for grid synchronization because of its simple implementation and good filtering capability. However, the frequency characteristics of DSOGI-PLL affect the impedance modeling of the system,...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484721006107 |
| _version_ | 1818719191270686720 |
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| author | Yongxin Zhang Fei Li Liuchen Zhang Shiquan Wen Mingyao Ma Xing Zhang |
| author_facet | Yongxin Zhang Fei Li Liuchen Zhang Shiquan Wen Mingyao Ma Xing Zhang |
| author_sort | Yongxin Zhang |
| collection | DOAJ |
| description | Dual second-order generalized integrator phase-locked loop (DSOGI-PLL) is widely used in grid-connected system for grid synchronization because of its simple implementation and good filtering capability. However, the frequency characteristics of DSOGI-PLL affect the impedance modeling of the system, which in turn affect the impedance-based stability analysis. In order to improve the accuracy of system modeling, in this paper, the equivalent transfer function of positive-sequence calculator (PSC) block constructed in αβreference frame in DSOGI-PLL is presented in dq reference frame, where the relationship between DSOGI-PLL and traditional synchronous reference frame PLL (SRF-PLL) small-signal model is investigated. Then, based on the established model, DSOGI-PLL and SRF-PLL are compared from the tracking characteristics and robustness characteristics. It is further demonstrated that DSOGI-PLL is able to improve the robustness performance of PLL while maintaining the same tracking performance as SRF-PLL. Finally, simulation results are presented to validate the established model and frequency characteristic analysis. |
| first_indexed | 2024-12-17T20:03:01Z |
| format | Article |
| id | doaj.art-29770d7fe30b44b4abf2ad6c746b3b85 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-12-17T20:03:01Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-29770d7fe30b44b4abf2ad6c746b3b852022-12-21T21:34:24ZengElsevierEnergy Reports2352-48472021-11-017545551Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frameYongxin Zhang0Fei Li1Liuchen Zhang2Shiquan Wen3Mingyao Ma4Xing Zhang5National and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaCorresponding author.; National and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaNational and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaNational and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaNational and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaNational and Local Joint Engineering Laboratory for Renewable Energy Access to Grid Technology, Hefei University of Technology, Hefei 230009, ChinaDual second-order generalized integrator phase-locked loop (DSOGI-PLL) is widely used in grid-connected system for grid synchronization because of its simple implementation and good filtering capability. However, the frequency characteristics of DSOGI-PLL affect the impedance modeling of the system, which in turn affect the impedance-based stability analysis. In order to improve the accuracy of system modeling, in this paper, the equivalent transfer function of positive-sequence calculator (PSC) block constructed in αβreference frame in DSOGI-PLL is presented in dq reference frame, where the relationship between DSOGI-PLL and traditional synchronous reference frame PLL (SRF-PLL) small-signal model is investigated. Then, based on the established model, DSOGI-PLL and SRF-PLL are compared from the tracking characteristics and robustness characteristics. It is further demonstrated that DSOGI-PLL is able to improve the robustness performance of PLL while maintaining the same tracking performance as SRF-PLL. Finally, simulation results are presented to validate the established model and frequency characteristic analysis.http://www.sciencedirect.com/science/article/pii/S2352484721006107DSOGI-PLLSRF-PLLdq reference frameSmall-signal modelingFrequency characteristics |
| spellingShingle | Yongxin Zhang Fei Li Liuchen Zhang Shiquan Wen Mingyao Ma Xing Zhang Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame Energy Reports DSOGI-PLL SRF-PLL dq reference frame Small-signal modeling Frequency characteristics |
| title | Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame |
| title_full | Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame |
| title_fullStr | Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame |
| title_full_unstemmed | Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame |
| title_short | Modeling and frequency characteristic analysis of DSOGI-PLL in dq reference frame |
| title_sort | modeling and frequency characteristic analysis of dsogi pll in dq reference frame |
| topic | DSOGI-PLL SRF-PLL dq reference frame Small-signal modeling Frequency characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S2352484721006107 |
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