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Energies 2015, 8(10), 11718-11736; doi:10.3390/en81011718

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

1
Faculty of Electrical Engineering, Danang University of Science and Technology, 54-Nguyen Luong Bang, Danang 550000, Vietnam
2
Division of Electrical Engineering and Computer Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
3
Faculty of Electrical and Computer Engineering, Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Received: 1 August 2015 / Revised: 21 September 2015 / Accepted: 13 October 2015 / Published: 19 October 2015
(This article belongs to the Special Issue Wind Turbine 2015)
View Full-Text   |   Download PDF [637 KB, uploaded 19 October 2015]   |  

Abstract

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. View Full-Text
Keywords: doubly-fed induction generator; Lyapunov function-based control; maximum power point tracking; maximum energy doubly-fed induction generator; Lyapunov function-based control; maximum power point tracking; maximum energy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Phan, D.-C.; Yamamoto, S. Maximum Energy Output of a DFIG Wind Turbine Using an Improved MPPT-Curve Method. Energies 2015, 8, 11718-11736.

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