Study on the control strategy for oscillatory stability enhancement using DFIG wind turbine system

Kong, Lingming; He, Yufei

doi:10.1109/iea.2017.7939171

Cited by 1 publication

(1 citation statement)

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“…These induction generators fall into two types: fixed speed induction generators (FSIGs) with squirrel cage rotors [2] and doubly fed induction generators (DFIGs) with wound rotors [3].The DFIG is currently the system of choice for multi-MW wind turbines as over 85% of the installed wind turbines utilize DFIGs .In the DFIG topology, the stator is directly connected to the grid through transformers and the rotor is connected to the grid through PWM power converters. The converters can control the rotor circuit current, frequency and phase angle shifts.…”

Section: Introductionmentioning

confidence: 99%

Voltage Oriented Decoupled Control Scheme for DFIG’s Grid Side Converter

Kamran

Muñoz

2018

TELKOMNIKA

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This paper proposes a novel voltage oriented decoupled control scheme for the DFIG's Grid Side Converter (GSC) of a 2.3Mw, 690V, 50Hz, 6 pole doubly-fed induction generator (DFIG) based wind generation system. For Rotor Side Converter (RSC), slip and constant V/Hz control scheme along with a feedback control via PWM is selected but not explained in this paper.Based on the per-phase steady state equivalent circuit model of a DFIG, relationship between stator and rotor voltages is developed. Voltage oriented decoupled control scheme for GSC is designed in such a way that it can keep the dc link voltage constant by regulating grid reactive power when required. The space vector modulation (SVM) algorithm is explained breifly and implemented for the two-level GSC. MATLAB/SIMULINK (R2015a) software validates the proposed control scheme for GSC.

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Section: Introductionmentioning

confidence: 99%