원문정보
초록
영어
This paper focuses on a sensorless control method for small wind turbines based on permanent magnet synchronous generators. An adaptive intelligent algorithm is proposed to estimate the rotor speed for designing sensorless controllers of small wind turbines. In the proposed algorithm, a model reference adaptive system has been formed by using the instantaneous and steady-state powers to estimate the rotor speed. Then a power speed feedback (PSF) control carries out maximum power point tracking by using the optimum relationship between speed and power, which is kept in a lookup table. The efficiency of the system is improved by vanishing the observation errors and tracking errors. The validity of the proposed algorithm is verified by the simulation results.
목차
1. Introduction
2. SWT Modeling
2.1. Wind Turbine Model
2.2. PMSG Model
3. MRAC-Based Speed Estimation
4. Control Strategy
4.1. PMSG Speed Control
5. Simulation Results
6. Conclusion
Acknowledgements
References