An Isolated Small Wind Turbine Emulator

Author

Arifujjaman, Md ; Iqbal, M.T. ; Quaicoe, John E.

Author_Institution

Memorial Univ. of Newfoundland, St. John´´s, Nfld.

fYear

2006

fDate

38838

Firstpage

1854

Lastpage

1857

Abstract

An isolated small wind turbine emulator is described in this paper. The system consists of a PC controlled variable speed DC motor coupled to a synchronous generator. Dump load is connected to the generator through a microcontroller controlled DC-DC converter. The varying aerodynamic torque of the wind turbine due to furling action and its resulting dynamics are incorporated in the emulator with the use of a PC based wind turbine model. A simple gain scheduled digital PI controller is designed which makes sure that the actual rotational speed of the DC motor is tracking the theoretical rotational speed of the wind turbine rotor. To extract the maximum power from the system, a dynamic controller is discussed which uses the wind speed and rotor speed information to control the duty cycle of the buck-boost converter in order to operate the wind turbine at the optimum tip speed ratio

Keywords

DC motors; DC-DC power convertors; PI control; aerodynamics; machine control; synchronous generators; torque; wind turbines; DC-DC converter; PC controlled variable speed DC motor; aerodynamic torque; buck-boost converter; gain scheduled digital PI controller; synchronous generator; wind turbine emulator; Aerodynamics; Control systems; Couplings; DC motors; DC-DC power converters; Microcontrollers; Rotors; Synchronous generators; Torque; Wind turbines; buck-boost converter; furling control; tip speed ratio (TSR) control; wind turbine emulator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on

Conference_Location

Ottawa, Ont.

Print_ISBN

1-4244-0038-4

Electronic_ISBN

1-4244-0038-4

Type

conf

DOI

10.1109/CCECE.2006.277633

Filename

4054653