MPPT Control of Grid Connected DFIG at Variable Wind Speed

In this study, maximum power point tracking (MPPT) control of a grid-connected doubly fed induction generated (DFIG)-based wind energy conversion system (WECS) at variable wind speed was designed and analyzed. The real wind speed data of the Edremit/Balıkesir region in Turkey was used as the wind sp...

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Bibliographic Details
Published inEnergies (Basel) Vol. 15; no. 9; p. 3146
Main Authors Bekiroglu, Erdal, Yazar, Muhammed Duran
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2022
Subjects
Alternative energy sources
Angular velocity
Control algorithms
Controllers
Converters
Data buses
Design wind speed
doubly fed induction generator
Electric potential
Electromagnetic induction
Energy conversion
Environmental impact
Generators
Maximum power tracking
MPPT
Response time
Rotors
Simulation
Torque
Tracking control
Turbines
variable speed WECS
Velocity
Voltage
wind energy
Wind power
Wind speed
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Summary:In this study, maximum power point tracking (MPPT) control of a grid-connected doubly fed induction generated (DFIG)-based wind energy conversion system (WECS) at variable wind speed was designed and analyzed. The real wind speed data of the Edremit/Balıkesir region in Turkey was used as the wind speed profile. A N90/2.5 MW wind turbine model of Nordex Company was used in the study. Firstly, a conventional PI controller was applied to both rotor and grid side converters. The rotor-side converter (RSC) controls the power generated from the DFIG, whereas the grid-side converter (GSC) controls the DC bus voltage. An MPPT controller was applied to the RSC to generate reference torque at instant variable wind speeds. Thus, the system’s response time, electromagnetic torque, generated power, and grid-side currents parameters were improved. In the MPPT controller, the reference torque value is produced by using the angular velocity and reference angular velocity values of the DFIG. The proposed system was modeled and simulated in Matlab/Simulink. Generated power, DC bus voltage, response time, electromagnetic torque, and grid side currents results were obtained. The results of the conventional PI controller and the results of the PI controller with MPPT were compared. The results of the proposed control were also compared with the related studies. The results showed that the proposed system is reliable, applicable, and valid for the grid-connected DFIG at variable wind speeds.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15093146