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A New Current Control Strategy of Maximizing the Generated Power from a Doubly Fed Induction Generator System
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| Author(s) |
Hui Li, Zhe Chen |
| Abstract |
This paper focuses on the development of
maximum wind power extraction strategies for variable
speed constant frequency (VSCF) grid-connected wind
power generation systems with a doubly fed induction
generator (DFIG). A new control method is proposed by
directly controlling the DFIG rotor current to follow an
optimal condition for not only the extracted maximum
power of the wind turbine below the base wind speed but
also the copper loss minimization. Based on the wind
turbine power characteristic and DFIG mathematical
models, the relationships between the generator speed and
d-q axis rotor current are derived respectively, for maximal
mechanical power extraction and copper loss-minimization.
Directly control rotor current scheme is simpler than the
conventional vector control strategy. Simulation results
have shown the proposed control strategy is correct and
valid. |
| Download |
| Filename: | T12-107.pdf |
| Filesize: | 178.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2007-03-12 by System |
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