Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions
Under unbalanced grid condition, in a Doubly-Fed Induction Generator (DFIG), voltage, current, and flux of the stator become asymmetric. Therefore, active-reactive power and torque will be oscillating. In DFIG controlling Rotor Side Converter (RSC) aims to eliminate power and torque oscillations. Ho...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
OICC Press
2024-02-01
|
| Series: | Majlesi Journal of Electrical Engineering |
| Subjects: | |
| Online Access: | https://oiccpress.com/mjee/article/view/4910 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850237754027278336 |
|---|---|
| author | Ali Akbar Vali Seyed Mohammad Hassan Hosseni Javad Olamaei |
| author_facet | Ali Akbar Vali Seyed Mohammad Hassan Hosseni Javad Olamaei |
| author_sort | Ali Akbar Vali |
| collection | DOAJ |
| description | Under unbalanced grid condition, in a Doubly-Fed Induction Generator (DFIG), voltage, current, and flux of the stator become asymmetric. Therefore, active-reactive power and torque will be oscillating. In DFIG controlling Rotor Side Converter (RSC) aims to eliminate power and torque oscillations. However, simultaneous elimination of the power and torque oscillations is not possible. Also, Grid Side Converter (GSC) aims to regulate DC-Link voltage. In this paper, in order to regulate DC-Link voltage, an Extended State Observer (ESO) based on a Generalized Proportional-Integral (GPI) controller, is employed. In this controlling method, DC-Link voltage is controlled without measuring the GSC current, and due to using the GPI controller, the improved dynamic response is resistant against voltage changes, and the settling time is reduced. To improve the transient stability and Low Voltage Fault Ride Through (LVRT) capability of DFIG, Statistic Fault Current Limiter (S-FCL) and Magnetic Energy Storage Fault Current Limiter (MES-FCL) are proposed in this paper. The proposed FCL does not only limit the fault current but also fasten voltage recovery. The simulations are implemented by MATLAB software in the synchronous positive and negative sequence reference (d-q). |
| format | Article |
| id | doaj-art-05d13dd4bb654b80ac82edbc5171bade |
| institution | OA Journals |
| issn | 2345-377X 2345-3796 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | OICC Press |
| record_format | Article |
| series | Majlesi Journal of Electrical Engineering |
| spelling | doaj-art-05d13dd4bb654b80ac82edbc5171bade2025-08-20T02:01:40ZengOICC PressMajlesi Journal of Electrical Engineering2345-377X2345-37962024-02-0115110.52547/mjee.15.1.53Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network ConditionsAli Akbar Vali0Seyed Mohammad Hassan Hosseni1Javad Olamaei2Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.Under unbalanced grid condition, in a Doubly-Fed Induction Generator (DFIG), voltage, current, and flux of the stator become asymmetric. Therefore, active-reactive power and torque will be oscillating. In DFIG controlling Rotor Side Converter (RSC) aims to eliminate power and torque oscillations. However, simultaneous elimination of the power and torque oscillations is not possible. Also, Grid Side Converter (GSC) aims to regulate DC-Link voltage. In this paper, in order to regulate DC-Link voltage, an Extended State Observer (ESO) based on a Generalized Proportional-Integral (GPI) controller, is employed. In this controlling method, DC-Link voltage is controlled without measuring the GSC current, and due to using the GPI controller, the improved dynamic response is resistant against voltage changes, and the settling time is reduced. To improve the transient stability and Low Voltage Fault Ride Through (LVRT) capability of DFIG, Statistic Fault Current Limiter (S-FCL) and Magnetic Energy Storage Fault Current Limiter (MES-FCL) are proposed in this paper. The proposed FCL does not only limit the fault current but also fasten voltage recovery. The simulations are implemented by MATLAB software in the synchronous positive and negative sequence reference (d-q).https://oiccpress.com/mjee/article/view/4910ESOâDFIGFCLLVRTSwitched boost inverterUnbalance Network |
| spellingShingle | Ali Akbar Vali Seyed Mohammad Hassan Hosseni Javad Olamaei Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions Majlesi Journal of Electrical Engineering ESOâDFIG FCL LVRT Switched boost inverter Unbalance Network |
| title | Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions |
| title_full | Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions |
| title_fullStr | Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions |
| title_full_unstemmed | Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions |
| title_short | Improved Low Voltage Ride-Through Capability of DFIG with ESO Controller under Unbalanced Network Conditions |
| title_sort | improved low voltage ride through capability of dfig with eso controller under unbalanced network conditions |
| topic | ESOâDFIG FCL LVRT Switched boost inverter Unbalance Network |
| url | https://oiccpress.com/mjee/article/view/4910 |
| work_keys_str_mv | AT aliakbarvali improvedlowvoltageridethroughcapabilityofdfigwithesocontrollerunderunbalancednetworkconditions AT seyedmohammadhassanhosseni improvedlowvoltageridethroughcapabilityofdfigwithesocontrollerunderunbalancednetworkconditions AT javadolamaei improvedlowvoltageridethroughcapabilityofdfigwithesocontrollerunderunbalancednetworkconditions |