Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter
The present study investigates the control strategy of a novel doubled-fed induction generator (DFIG) with a series grid-side converter (SGSC) during grid faults. The rotor-side inverter is subject to a control strategy derived from the Model Predictive Current Control (MPCC) theory, which is implem...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/10/2537 |
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| _version_ | 1849327619112173568 |
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| author | Xin Qi Can Ding Jun Zhang Quan Wang Wenhui Chen |
| author_facet | Xin Qi Can Ding Jun Zhang Quan Wang Wenhui Chen |
| author_sort | Xin Qi |
| collection | DOAJ |
| description | The present study investigates the control strategy of a novel doubled-fed induction generator (DFIG) with a series grid-side converter (SGSC) during grid faults. The rotor-side inverter is subject to a control strategy derived from the Model Predictive Current Control (MPCC) theory, which is implemented during periods of fault occurrence; for the series grid-side converter, the positive and negative sequence component control is implemented during both steady state and fault periods to enhance system stability and performance. The proposed coordinated control strategy is implemented on a doubly fed turbine with SGSC, while taking into account different degrees of symmetric and asymmetric faults to further evaluate the efficacy of the proposed method. The results of the simulations demonstrate the efficacy of the model-predictive current control scheme applied to the rotor-side converter under conditions of asymmetric faults. This enables the suppression of a range of phenomena, including rotor overcurrent, stator overcurrent, and overvoltage, electromagnetic torque ripple, and DC bus voltage during low-voltage ride-through (LVRT), among others. The present study confirms the viability of implementing positive and negative sequences of voltage separation control in the SGSC during both grid faults and steady state. This approach is expected to minimize the switching of SGSC control strategies and thereby reduce output power fluctuations. The Rotor Side Converter (RSC) and SGSC can perform coordinated control during faults, and the proposed method is able to improve low-voltage ride-through performance compared to existing methods, thereby preventing damage to the converter under multiple fault conditions. |
| format | Article |
| id | doaj-art-1860c1e7500b4d8b962fb933b2ee047a |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-1860c1e7500b4d8b962fb933b2ee047a2025-08-20T03:47:49ZengMDPI AGEnergies1996-10732025-05-011810253710.3390/en18102537Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side ConverterXin Qi0Can Ding1Jun Zhang2Quan Wang3Wenhui Chen4China Electric Power Research Institute Wuhan Branch, Wuhan 430074, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443000, ChinaChina Electric Power Research Institute Wuhan Branch, Wuhan 430074, ChinaChina Electric Power Research Institute Wuhan Branch, Wuhan 430074, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443000, ChinaThe present study investigates the control strategy of a novel doubled-fed induction generator (DFIG) with a series grid-side converter (SGSC) during grid faults. The rotor-side inverter is subject to a control strategy derived from the Model Predictive Current Control (MPCC) theory, which is implemented during periods of fault occurrence; for the series grid-side converter, the positive and negative sequence component control is implemented during both steady state and fault periods to enhance system stability and performance. The proposed coordinated control strategy is implemented on a doubly fed turbine with SGSC, while taking into account different degrees of symmetric and asymmetric faults to further evaluate the efficacy of the proposed method. The results of the simulations demonstrate the efficacy of the model-predictive current control scheme applied to the rotor-side converter under conditions of asymmetric faults. This enables the suppression of a range of phenomena, including rotor overcurrent, stator overcurrent, and overvoltage, electromagnetic torque ripple, and DC bus voltage during low-voltage ride-through (LVRT), among others. The present study confirms the viability of implementing positive and negative sequences of voltage separation control in the SGSC during both grid faults and steady state. This approach is expected to minimize the switching of SGSC control strategies and thereby reduce output power fluctuations. The Rotor Side Converter (RSC) and SGSC can perform coordinated control during faults, and the proposed method is able to improve low-voltage ride-through performance compared to existing methods, thereby preventing damage to the converter under multiple fault conditions.https://www.mdpi.com/1996-1073/18/10/2537SGSC (series grid-side converter)positive and negative sequence voltage separationMPCC (model predictive current control)LVRT (low voltage ride through)DFIG (doubly fed induction generator) |
| spellingShingle | Xin Qi Can Ding Jun Zhang Quan Wang Wenhui Chen Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter Energies SGSC (series grid-side converter) positive and negative sequence voltage separation MPCC (model predictive current control) LVRT (low voltage ride through) DFIG (doubly fed induction generator) |
| title | Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter |
| title_full | Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter |
| title_fullStr | Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter |
| title_full_unstemmed | Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter |
| title_short | Low Voltage Ride Through Coordination Control Strategy of DFIG with Series Grid Side Converter |
| title_sort | low voltage ride through coordination control strategy of dfig with series grid side converter |
| topic | SGSC (series grid-side converter) positive and negative sequence voltage separation MPCC (model predictive current control) LVRT (low voltage ride through) DFIG (doubly fed induction generator) |
| url | https://www.mdpi.com/1996-1073/18/10/2537 |
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