A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems
Along with de-carbonisation, the penetration of power electronic converters has increased, and the power system has become a power electronic-based power system. In such a situation, the stability of the power system faces great challenges. In the event of a large disturbance, the power grid will la...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2023-01-01
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| Series: | Power Electronics and Drives |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/pead-2023-0001 |
| _version_ | 1827341043677265920 |
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| author | Gao Xian Zhou Dao Anvari-Moghaddam Amjad Blaabjerg Frede |
| author_facet | Gao Xian Zhou Dao Anvari-Moghaddam Amjad Blaabjerg Frede |
| author_sort | Gao Xian |
| collection | DOAJ |
| description | Along with de-carbonisation, the penetration of power electronic converters has increased, and the power system has become a power electronic-based power system. In such a situation, the stability of the power system faces great challenges. In the event of a large disturbance, the power grid will lack the ability to maintain a stable voltage and frequency. In order to improve the stability of the power grid, the traditional grid-following (GFL) control is needed to be converted to the grid-forming (GFM) control. This paper analyses the control schemes of the GFL and GFM converters by investigating their state-space models, and the eigenvalue trajectories of both control schemes are shown to analyse the stability of the systems. Moreover, a case study is exemplified to compare the performance of the two control strategies while responding to frequency disturbances. Finally, a time-domain simulation model of a 15 kW grid-connected converter is built in Matlab/Simulink to benchmark the performance of the GFL and GFM converters under different working conditions. The result reveals that the GFL converter may encounter some instabilities when applied in power electronic-based systems, while the GFM converter is more suitable for the weak power grid. |
| first_indexed | 2024-03-07T21:34:06Z |
| format | Article |
| id | doaj.art-df9a9dd9c7174aee8e204cdbbe5aaf52 |
| institution | Directory Open Access Journal |
| issn | 2543-4292 |
| language | English |
| last_indexed | 2024-03-07T21:34:06Z |
| publishDate | 2023-01-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Power Electronics and Drives |
| spelling | doaj.art-df9a9dd9c7174aee8e204cdbbe5aaf522024-02-26T14:30:08ZengSciendoPower Electronics and Drives2543-42922023-01-018112010.2478/pead-2023-0001A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power SystemsGao Xian0Zhou Dao1Anvari-Moghaddam Amjad2Blaabjerg Frede3AAU Energy, Aalborg University, Aalborg, DenmarkAAU Energy, Aalborg University, Aalborg, DenmarkAAU Energy, Aalborg University, Aalborg, DenmarkAAU Energy, Aalborg University, Aalborg, DenmarkAlong with de-carbonisation, the penetration of power electronic converters has increased, and the power system has become a power electronic-based power system. In such a situation, the stability of the power system faces great challenges. In the event of a large disturbance, the power grid will lack the ability to maintain a stable voltage and frequency. In order to improve the stability of the power grid, the traditional grid-following (GFL) control is needed to be converted to the grid-forming (GFM) control. This paper analyses the control schemes of the GFL and GFM converters by investigating their state-space models, and the eigenvalue trajectories of both control schemes are shown to analyse the stability of the systems. Moreover, a case study is exemplified to compare the performance of the two control strategies while responding to frequency disturbances. Finally, a time-domain simulation model of a 15 kW grid-connected converter is built in Matlab/Simulink to benchmark the performance of the GFL and GFM converters under different working conditions. The result reveals that the GFL converter may encounter some instabilities when applied in power electronic-based systems, while the GFM converter is more suitable for the weak power grid.https://doi.org/10.2478/pead-2023-0001grid-following controlgrid-forming controlstate-space modelstability analysisgrid strength |
| spellingShingle | Gao Xian Zhou Dao Anvari-Moghaddam Amjad Blaabjerg Frede A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems Power Electronics and Drives grid-following control grid-forming control state-space model stability analysis grid strength |
| title | A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems |
| title_full | A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems |
| title_fullStr | A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems |
| title_full_unstemmed | A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems |
| title_short | A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems |
| title_sort | comparative study of grid following and grid forming control schemes in power electronic based power systems |
| topic | grid-following control grid-forming control state-space model stability analysis grid strength |
| url | https://doi.org/10.2478/pead-2023-0001 |
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