The Digital Soft Braking for Wind Turbine

Author

Sun, Yong ; Lin, Yonggang ; Li, Wei ; Zhang, Dahai

Author_Institution

State Key Lab. of Fluid Power Transm. & Control, Zhejiang Univ., Hangzhou, China

fYear

2010

fDate

7-9 Nov. 2010

Firstpage

1

Lastpage

6

Abstract

The mathematical models of hydraulic braking system were built through studying the braking system of the wind turbine. The AMESim software was used to establish the simulation model of hydraulic braking system and the controller model, which was employed to the coupling of the simulation, constructed in Matlab/Simulink. The designed soft braking system was tested in the wind turbine. The analysis results of the simulation and the test show that the rotor speed decreases gently and the fluctuation of the gearbox torque is diminished at the soft braking based on adjusting the duty cycle of PWM which controls the ON/OFF of the high-speed switch valve.

Keywords

braking; digital systems; hydraulic systems; mathematics computing; power engineering computing; torque control; valves; wind turbines; AMESim software; Matlab; PWM duty cycle; Simulink; digital soft braking; gearbox torque; high speed switch valve; hydraulic braking system; mathematical models; rotor speed; simulation model; soft braking system; wind turbine; Force; Mathematical model; Rotors; Torque; Valves; Wind speed; Wind turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on

Conference_Location

Henan

Print_ISBN

978-1-4244-7159-1

Type

conf

DOI

10.1109/ICEEE.2010.5660992

Filename

5660992