An Observer-Based Harmonic Extraction Method with Front SOGI
With the further development of harmonic pollution in the power system, scientists have carried out research on harmonics. Among them, harmonic detection is the first step in harmonic research. In this paper, a harmonic detection method based on an observer is proposed. This method first uses the ca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/10/2/95 |
| _version_ | 1797478642789384192 |
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| author | Maoguang Xu Zhongqing Sang Xiang Li Yimin You Dongyun Dai |
| author_facet | Maoguang Xu Zhongqing Sang Xiang Li Yimin You Dongyun Dai |
| author_sort | Maoguang Xu |
| collection | DOAJ |
| description | With the further development of harmonic pollution in the power system, scientists have carried out research on harmonics. Among them, harmonic detection is the first step in harmonic research. In this paper, a harmonic detection method based on an observer is proposed. This method first uses the cascaded Second-Order Generalized Integration (SOGI) algorithm, which can filter the Direct Current (DC) component of the input signal to extract the fundamental frequency, and then uses a time-varying observer to extract the harmonics. This can be used to extract harmonics from a distorted online grid signal. The effectiveness of the proposed method was evaluated on the Speedgoat Rapid Control Prototype (RCP) platform. The results show that it can complete the convergence within 0.05 s, and the standard deviation after stability will not exceed 1%. |
| first_indexed | 2024-03-09T21:34:37Z |
| format | Article |
| id | doaj.art-c1e8a1037d69413b94238f38fe06aacb |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-09T21:34:37Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-c1e8a1037d69413b94238f38fe06aacb2023-11-23T20:48:12ZengMDPI AGMachines2075-17022022-01-011029510.3390/machines10020095An Observer-Based Harmonic Extraction Method with Front SOGIMaoguang Xu0Zhongqing Sang1Xiang Li2Yimin You3Dongyun Dai4School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, ChinaDepartment of Instrumental and Electrical Engineering, School of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaSchool of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, ChinaSchool of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361024, ChinaWith the further development of harmonic pollution in the power system, scientists have carried out research on harmonics. Among them, harmonic detection is the first step in harmonic research. In this paper, a harmonic detection method based on an observer is proposed. This method first uses the cascaded Second-Order Generalized Integration (SOGI) algorithm, which can filter the Direct Current (DC) component of the input signal to extract the fundamental frequency, and then uses a time-varying observer to extract the harmonics. This can be used to extract harmonics from a distorted online grid signal. The effectiveness of the proposed method was evaluated on the Speedgoat Rapid Control Prototype (RCP) platform. The results show that it can complete the convergence within 0.05 s, and the standard deviation after stability will not exceed 1%.https://www.mdpi.com/2075-1702/10/2/95harmonic detectionSOGIobserverspeedgoat RCP platform |
| spellingShingle | Maoguang Xu Zhongqing Sang Xiang Li Yimin You Dongyun Dai An Observer-Based Harmonic Extraction Method with Front SOGI Machines harmonic detection SOGI observer speedgoat RCP platform |
| title | An Observer-Based Harmonic Extraction Method with Front SOGI |
| title_full | An Observer-Based Harmonic Extraction Method with Front SOGI |
| title_fullStr | An Observer-Based Harmonic Extraction Method with Front SOGI |
| title_full_unstemmed | An Observer-Based Harmonic Extraction Method with Front SOGI |
| title_short | An Observer-Based Harmonic Extraction Method with Front SOGI |
| title_sort | observer based harmonic extraction method with front sogi |
| topic | harmonic detection SOGI observer speedgoat RCP platform |
| url | https://www.mdpi.com/2075-1702/10/2/95 |
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