An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances
Doubly-fed induction generators (DFIGs) participate in the system frequency regulation using a fixed-coefficient droop control scheme. Nevertheless, the frequency-supporting capability of this control scheme with fixed gain is limited for different disturbances. This paper suggests an improved droop...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/23/7980 |
| _version_ | 1797507875661152256 |
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| author | Yien Xu Pei Chen Xinsong Zhang Dejian Yang |
| author_facet | Yien Xu Pei Chen Xinsong Zhang Dejian Yang |
| author_sort | Yien Xu |
| collection | DOAJ |
| description | Doubly-fed induction generators (DFIGs) participate in the system frequency regulation using a fixed-coefficient droop control scheme. Nevertheless, the frequency-supporting capability of this control scheme with fixed gain is limited for different disturbances. This paper suggests an improved droop control scheme for a DFIG that can both alleviate the frequency nadir and maximum rate of change of frequency (ROCOF) during the frequency regulation. To achieve this, an adaptive droop control coefficient based on the ROCOF is suggested. The proposed droop control coefficient is a linear function of the ROCOF. Therefore, the proposed scheme can adjust the control coefficient according to the varying ROCOF. Simulation results clearly demonstrate that the proposed droop control scheme shows better effectiveness in improving the maximum ROCOF and frequency nadir under various sizes of disturbance, even in a varying wind speed. |
| first_indexed | 2024-03-10T04:54:40Z |
| format | Article |
| id | doaj.art-c69f8e8d946d4a4a9eb62a8104a2a5da |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T04:54:40Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c69f8e8d946d4a4a9eb62a8104a2a5da2023-11-23T02:20:49ZengMDPI AGEnergies1996-10732021-11-011423798010.3390/en14237980An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various DisturbancesYien Xu0Pei Chen1Xinsong Zhang2Dejian Yang3School of Electrical Engineering, Nantong University, Nantong 226019, ChinaSchool of Electrical Engineering, Nantong University, Nantong 226019, ChinaSchool of Electrical Engineering, Nantong University, Nantong 226019, ChinaKey Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin 132012, ChinaDoubly-fed induction generators (DFIGs) participate in the system frequency regulation using a fixed-coefficient droop control scheme. Nevertheless, the frequency-supporting capability of this control scheme with fixed gain is limited for different disturbances. This paper suggests an improved droop control scheme for a DFIG that can both alleviate the frequency nadir and maximum rate of change of frequency (ROCOF) during the frequency regulation. To achieve this, an adaptive droop control coefficient based on the ROCOF is suggested. The proposed droop control coefficient is a linear function of the ROCOF. Therefore, the proposed scheme can adjust the control coefficient according to the varying ROCOF. Simulation results clearly demonstrate that the proposed droop control scheme shows better effectiveness in improving the maximum ROCOF and frequency nadir under various sizes of disturbance, even in a varying wind speed.https://www.mdpi.com/1996-1073/14/23/7980doubly-fed induction generatoradaptive droop coefficientwind powerfrequency nadirROCOF |
| spellingShingle | Yien Xu Pei Chen Xinsong Zhang Dejian Yang An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances Energies doubly-fed induction generator adaptive droop coefficient wind power frequency nadir ROCOF |
| title | An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances |
| title_full | An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances |
| title_fullStr | An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances |
| title_full_unstemmed | An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances |
| title_short | An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances |
| title_sort | improved droop control scheme of a doubly fed induction generator for various disturbances |
| topic | doubly-fed induction generator adaptive droop coefficient wind power frequency nadir ROCOF |
| url | https://www.mdpi.com/1996-1073/14/23/7980 |
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