Direct power control of DFIG based on discrete space vector modulation

This paper presents a new direct power control (DPC) strategy for a double fed induction generator (DFIG) based wind energy generation system. Switching vectors for rotor side converter were selected from the optimal switching table using the estimated stator flux position and the errors of the acti...

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Bibliographic Details
Published in:Renewable energy 2010-05, Vol.35 (5), p.1033-1042
Main Authors: Verij Kazemi, Mohammad, Sadeghi Yazdankhah, Ahmad, Madadi Kojabadi, Hossein
Format: Article
Language:English
Subjects:
Applied sciences
Constant switching frequency
Direct energy conversion and energy accumulation
Direct power control
Discrete space vector modulation
Doubly fed induction generator
Electrical engineering. Electrical power engineering
Electrical machines
Electrical power engineering
Energy
Exact sciences and technology
High voltage or high current generators
Miscellaneous
Natural energy
Regulation and control
Stator
Various equipment and components
Wind energy
Wind turbine
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Description
Summary:This paper presents a new direct power control (DPC) strategy for a double fed induction generator (DFIG) based wind energy generation system. Switching vectors for rotor side converter were selected from the optimal switching table using the estimated stator flux position and the errors of the active and reactive power. A few number of voltage vectors may cause undesired power and stator current ripple. In this paper the increased number of voltage vectors with application of the Discrete Space Vector Modulation (DSVM) will be presented. Then a new switching table in supersynchronous and subsynchronous frames will be proposed. Simulation results of a 2 MW DFIG system demonstrate the effectiveness and robustness of the proposed control strategy during variations of active and reactive power, machine parameters, and wind speed.
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2009.09.008