Control of DFIG-WT under unbalanced grid voltage conditions
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hdl:2117/8972
Tipus de documentComunicació de congrés
Data publicació2009
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The voltage oriented control in the synchronous
reference frame (VOC-SRF) have been extensively used for
controlling wind turbines based on doubly fed induction
generators (DFIG-WTs) through the rotor side converter of a
back to back power processor. Although its performance is fast
and accurate under balanced conditions its behaviour is not
good enough when the voltage of the mains is unbalanced, unless
an independent control for the positive and the negative
sequence is implemented. This paper proposes a new control
system able to control the DFIG-WT under unbalanced
conditions using a simple algorithm, which does not need to be
implemented for both symmetrical components but on the static
αβ reference frame. The reliability of the presented system will
be tested by means of PSCAD simulations under balanced and
unbalanced grid conditions.
CitacióLuna, A. [et al.]. Control of DFIG-WT under unbalanced grid voltage conditions. A: Energy Conversion Congress and Exposition, 2009. "ECCE 2009". 2009, p. 370-377.
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