Optimal MRAS speed estimation for induction generator in wind turbine application

Author

Dumnic, Boris ; Matic, Dragan ; Katic, Vladimir ; Vasic, Veran ; Delimar, Marko

Author_Institution

Fac. of Tech. Sci., Univ. of Novi Sad, Novi Sad, Serbia

fYear

2010

fDate

26-28 April 2010

Firstpage

949

Lastpage

954

Abstract

This paper propose improved sensorless vector control of squirrel cage induction generator for variable speed wind energy conversion system. The rotational speed of the induction generator is estimated with the Model Reference Adaptive System - MRAS observer. The estimated rotational speed is used as the feedback of the control loop in the converter control system. Proportional integral controller in the MRAS observer is optimized via Genetic Algorithm, Partical Swarm Optimization and Simulated Annealing. Comparative analyse of the optimal speed estimation of induction generator is also presented. The performance of the sensorless controlled variable speed wind turbine drive is evaluated through simulation in Matlab/Simulink. Experimental results are gained via laboratory model based on dSpace DS1104 digital control card.

Keywords

adaptive control; angular velocity control; asynchronous generators; genetic algorithms; observers; particle swarm optimisation; sensorless machine control; simulated annealing; three-term control; variable speed drives; wind turbines; MRAS observer; Matlab-Simulink simulation; converter control system; dSpace DS1104 digital control card; genetic algorithm; induction generator; model reference adaptive system; optimal MRAS speed estimation; partical swarm optimization; proportional integral controller; sensorless controlled variable speed wind turbine drive; sensorless vector control; simulated annealing; squirrel cage induction generator; wind turbine; Adaptive systems; Control system synthesis; Control systems; Feedback loop; Induction generators; Mathematical model; Pi control; Sensorless control; Wind energy; Wind turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference

Conference_Location

Valletta

Print_ISBN

978-1-4244-5793-9

Type

conf

DOI

10.1109/MELCON.2010.5475922

Filename

5475922