Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine
With the rapid increase in the proportion of the installed wind power capacity in the total grid capacity, the state has put forward higher and higher requirements for wind power integration into the grid, among which the most difficult requirement is the zero-voltage ride through (ZVRT) capability...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/8/2287 |
| _version_ | 1797537181368057856 |
|---|---|
| author | Kaina Qin Shanshan Wang Zhongjian Kang |
| author_facet | Kaina Qin Shanshan Wang Zhongjian Kang |
| author_sort | Kaina Qin |
| collection | DOAJ |
| description | With the rapid increase in the proportion of the installed wind power capacity in the total grid capacity, the state has put forward higher and higher requirements for wind power integration into the grid, among which the most difficult requirement is the zero-voltage ride through (ZVRT) capability of the wind turbine. When the voltage drops deeply, a series of transient processes, such as serious overvoltage, overcurrent, or speed rise, will occur in the motor, which will seriously endanger the safe operation of the wind turbine itself and its control system, and cause large-scale off-grid accident of wind generator. Therefore, it is of great significance to improve the uninterrupted operation ability of the wind turbine. Doubly fed induction generator (DFIG) can achieve the best wind energy tracking control in a wide range of wind speed and has the advantage of flexible power regulation. It is widely used at present, but it is sensitive to the grid voltage. In the current study, the DFIG is taken as the research object. The transient process of the DFIG during a fault is analyzed in detail. The mechanism of the rotor overcurrent and DC bus overvoltage of the DFIG during fault is studied. Additionally, the simulation model is built in DIgSILENT. The active crowbar hardware protection circuit is put into the rotor side of the wind turbine, and the extended state observer and terminal sliding mode control are added to the grid side converter control. Through the cooperative control technology, the rotor overcurrent and DC bus overvoltage can be suppressed to realize the zero-voltage ride-through of the doubly fed wind turbine, and ensure the safe and stable operation of the wind farm. Finally, the simulation results are presented to verify the theoretical analysis and the proposed control strategy. |
| first_indexed | 2024-03-10T12:11:24Z |
| format | Article |
| id | doaj.art-4c85320133a1411e8a8c5a3545c57f96 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T12:11:24Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4c85320133a1411e8a8c5a3545c57f962023-11-21T16:09:52ZengMDPI AGEnergies1996-10732021-04-01148228710.3390/en14082287Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind TurbineKaina Qin0Shanshan Wang1Zhongjian Kang2College of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaChina Electric Power Research Institute, Beijing 100192, ChinaCollege of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaWith the rapid increase in the proportion of the installed wind power capacity in the total grid capacity, the state has put forward higher and higher requirements for wind power integration into the grid, among which the most difficult requirement is the zero-voltage ride through (ZVRT) capability of the wind turbine. When the voltage drops deeply, a series of transient processes, such as serious overvoltage, overcurrent, or speed rise, will occur in the motor, which will seriously endanger the safe operation of the wind turbine itself and its control system, and cause large-scale off-grid accident of wind generator. Therefore, it is of great significance to improve the uninterrupted operation ability of the wind turbine. Doubly fed induction generator (DFIG) can achieve the best wind energy tracking control in a wide range of wind speed and has the advantage of flexible power regulation. It is widely used at present, but it is sensitive to the grid voltage. In the current study, the DFIG is taken as the research object. The transient process of the DFIG during a fault is analyzed in detail. The mechanism of the rotor overcurrent and DC bus overvoltage of the DFIG during fault is studied. Additionally, the simulation model is built in DIgSILENT. The active crowbar hardware protection circuit is put into the rotor side of the wind turbine, and the extended state observer and terminal sliding mode control are added to the grid side converter control. Through the cooperative control technology, the rotor overcurrent and DC bus overvoltage can be suppressed to realize the zero-voltage ride-through of the doubly fed wind turbine, and ensure the safe and stable operation of the wind farm. Finally, the simulation results are presented to verify the theoretical analysis and the proposed control strategy.https://www.mdpi.com/1996-1073/14/8/2287doubly fed induction generatorzero voltage ride throughactive crowbarESOterminal sliding mode control |
| spellingShingle | Kaina Qin Shanshan Wang Zhongjian Kang Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine Energies doubly fed induction generator zero voltage ride through active crowbar ESO terminal sliding mode control |
| title | Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine |
| title_full | Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine |
| title_fullStr | Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine |
| title_full_unstemmed | Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine |
| title_short | Research on Zero-Voltage Ride Through Control Strategy of Doubly Fed Wind Turbine |
| title_sort | research on zero voltage ride through control strategy of doubly fed wind turbine |
| topic | doubly fed induction generator zero voltage ride through active crowbar ESO terminal sliding mode control |
| url | https://www.mdpi.com/1996-1073/14/8/2287 |
| work_keys_str_mv | AT kainaqin researchonzerovoltageridethroughcontrolstrategyofdoublyfedwindturbine AT shanshanwang researchonzerovoltageridethroughcontrolstrategyofdoublyfedwindturbine AT zhongjiankang researchonzerovoltageridethroughcontrolstrategyofdoublyfedwindturbine |