Study of control strategies for variable speed wind turbine under limited power conditions

Author

Lazarov, Vladimir ; Roye, Daniel ; Spirov, Dimitar ; Zarkov, Zahari

Author_Institution

Tech. Univ.-Sofia, Sofia, Bulgaria

fYear

2010

fDate

6-8 Sept. 2010

Abstract

The paper investigates the performance of variable speed wind turbine (VSWT) configuration with DC-DC converter under restricted output power conditions. The considered regimes of turbine operation are: at maximum available aerodynamic power and at limited output electric power. The wind turbine system consist of synchronous generator (SG) connected to diode rectifier, DC chopper and load. Two different control methods are used: with predefined turbine characteristics and with fuzzy logic controller. The turbine controllers combine the maximum power point tracking (MPPT) and limited power point tracking (LPPT) algorithms. The performance of the dynamic models and the control loops are tested under various wind conditions. The simulation results are shown. The results prove the strategy and models reliability.

Keywords

angular velocity control; machine control; maximum power point trackers; synchronous generators; wind turbines; DC chopper; DC-DC converter; LPPT; MPPT; aerodynamic power; diode rectifier; limited power point tracking algorithm; maximum power point tracking; synchronous generator; turbine controller; variable speed wind turbine; Converters; Fuzzy logic; Generators; Mathematical model; Niobium; Wind speed; Wind turbines; MPPT; fuzzy logic controller; modeling; power converter; smart power; wind generator;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606574

Filename

5606574