Maximum Energy Output of a DFIG Wind Turbine Using an Improved MPPT-Curve Method

A new method is proposed for obtaining the maximum power output of a doubly-fed induction generator (DFIG) wind turbine to control the rotor- and grid-side converters. The efficiency of maximum power point tracking that is obtained by the proposed method is theoretically guaranteed under assumptions...

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Bibliographic Details
Published in:Energies (Basel) 2015-10, Vol.8 (10), p.11718-11736
Main Authors: Phan, Dinh-Chung, Yamamoto, Shigeru
Format: Article
Language:English
Subjects:
Computer engineering
Computer simulation
doubly-fed induction generator
Electrical engineering
Energy
Lyapunov function-based control
Lyapunov functions
Mathematical models
Matlab
maximum energy
Maximum power
maximum power point tracking
Methods
Optimization
Simulation
Tracking
Turbines
Wind
Wind turbines
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Summary:A new method is proposed for obtaining the maximum power output of a doubly-fed induction generator (DFIG) wind turbine to control the rotor- and grid-side converters. The efficiency of maximum power point tracking that is obtained by the proposed method is theoretically guaranteed under assumptions that represent physical conditions. Several control parameters may be adjusted to ensure the quality of control performance. In particular, a DFIG state-space model and a control technique based on the Lyapunov function are adopted to derive the control method. The effectiveness of the proposed method is verified via numerical simulations of a 1.5-MW DFIG wind turbine using MATLAB/Simulink. The simulation results show that when the proposed method is used, the wind turbine is capable of properly tracking the optimal operation point; furthermore, the generator's available energy output is higher when the proposed method is used than it is when the conventional method is used instead.
ISSN:1996-1073
1996-1073
DOI:10.3390/en81011718