A Vertical-Axis Off-Grid Squirrel-Cage Induction Generator Wind Power System
Abstract
:1. Introduction
2. System Structure and Working Principle
3. System Control Strategy
3.1. Wind Power Generator Control
3.1.1. Assisted Self-Starting Control Strategy
3.1.2. Power Generation Operation Control Strategy
3.2. Maximum Power Tracking Control
3.3. Storage Battery Control Strategy
3.3.1. System Energy Management Strategy
3.3.2. Charging and Discharging Control Strategy
3.3.3. Actual Current Control
4. Experimental Verification and Comparative Experiments
4.1. Experimental Verification
4.2. Comparative Experiments
- (1)
- The test data is recorded every second, and the maximum, minimum, mean and standard deviation of every ten minutes of data are calculated;
- (2)
- Two wind turbines should be guaranteed to operate normally for more than 180 h;
- (3)
- All data is divided into many pieces per 0.5 m/s wind speed, and the average for each piece of data is calculated;
- (4)
- One-to-one correspondence of the average power and the average wind speed are finally achieved, from which the power curve is obtained.
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Generator Parameters | Other Parameters | ||
---|---|---|---|
Rated power | 5.5 kW | Storage Batteries | 16 × 12 V/20 Ah |
Rated speed | 1450 rpm | Power resistance | 6.4 Ω/7.5 kW |
Rated line voltage | 154 V | Wind turbine | 200 rpm/5 kW |
Pole pairs | 2 | Drive ratio | 1:7.25 |
Comparative Objects | SCIG Wind Power System | PMSG Wind Power System |
---|---|---|
Wind machine | Same | Same |
Rated power | Same | Same |
Connection type | Speed increasing gear (1:7.25) | Magnetic suspension & direct drive |
Structure topology | Full-bridge converter | Uncontrolled rectifier + DC/DC |
System controller | One controller | Two controllers (starter + generation) |
Storage battery | 16 × 12 V/20 Ah | 9 × 12 V/100 Ah |
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Xu, P.; Shi, K.; Bu, F.; Zhao, D.; Fang, Z.; Liu, R.; Zhu, Y. A Vertical-Axis Off-Grid Squirrel-Cage Induction Generator Wind Power System. Energies 2016, 9, 822. https://doi.org/10.3390/en9100822
Xu P, Shi K, Bu F, Zhao D, Fang Z, Liu R, Zhu Y. A Vertical-Axis Off-Grid Squirrel-Cage Induction Generator Wind Power System. Energies. 2016; 9(10):822. https://doi.org/10.3390/en9100822
Chicago/Turabian StyleXu, Peifeng, Kai Shi, Feifei Bu, Dean Zhao, Zhiming Fang, Rongke Liu, and Yi Zhu. 2016. "A Vertical-Axis Off-Grid Squirrel-Cage Induction Generator Wind Power System" Energies 9, no. 10: 822. https://doi.org/10.3390/en9100822
APA StyleXu, P., Shi, K., Bu, F., Zhao, D., Fang, Z., Liu, R., & Zhu, Y. (2016). A Vertical-Axis Off-Grid Squirrel-Cage Induction Generator Wind Power System. Energies, 9(10), 822. https://doi.org/10.3390/en9100822