Robust decoupling strategy for speed control of permanent magnet synchronous generator in wind energy conversion systems

Author

Merabet, Adel ; Thongam, Jogendra ; Safaee, Alireza ; Pahlevaninezhad, Majid

fYear

2011

fDate

15-18 May 2011

Firstpage

1107

Lastpage

1112

Abstract

The paper presents a robust control strategy for speed tracking problem of variable speed permanent magnet synchronous generator (PMSG) in wind energy conversion system (WECS). A decoupling input, composed of the machine model nonlinearities, is defined to linearize the PMSG model. Then, the angular speed is controlled, through a stabilizing feedback, to follow a trajectory that allows the WECS to operate with maximum power extraction. The turbine torque is unknown to the controller, and its effect on the system is compensated by estimation. Simulation is carried out to verify the performance of the proposed control system.

Keywords

machine control; permanent magnet generators; synchronous generators; velocity control; wind power plants; PMSG model; angular speed; decoupling input; decoupling strategy; machine model nonlinearities; maximum power extraction; robust control strategy; speed control; speed tracking problem; stabilizing feedback; turbine torque; variable speed permanent magnet synchronous generator; wind energy conversion systems; Equations; Estimation; Mathematical model; Rotors; Stator windings; Torque; Wind turbines; Wind energy conversion system; decoupling control; permanent magnet synchronous generator; torque estimation; trajectory tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines & Drives Conference (IEMDC), 2011 IEEE International

Conference_Location

Niagara Falls, ON

Print_ISBN

978-1-4577-0060-6

Type

conf

DOI

10.1109/IEMDC.2011.5994756

Filename

5994756