A redundant electrical braking system for wind turbine generators

Author

Wang, Timothy CY ; Yang, Wenqiang ; Yuan, Xiaoming ; Teichmann, Ralph

Author_Institution

GE Global Res. Center, Shanghai

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

8

Abstract

Mechanical brake is typically used in wind turbine, which typically suffers from frequent wear-out, more trip opportunities and high maintenance cost. To addressing this issue, a redundant electrical braking system is proposed in this paper. It comprises a conventional dynamic brake connected to the converter DC link and a fully controllable resistive load connected to the generator terminals. The resistive load can be engaged by an active power semiconductor and a NC(normally closed) contactor.

Keywords

braking; contactors; power semiconductor devices; turbogenerators; wind turbines; active power semiconductor; converter DC link; dynamic brake; electrical braking system; fully controllable resistive load; generator terminals; mechanical brake; normally closed contactor; wind turbine generators; Contacts; Costs; DC generators; Hybrid power systems; Mesh generation; Power system dynamics; Resistors; Torque control; Wind energy generation; Wind turbines; Electrical braking; crow bar; dump load; wind turbine;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417293

Filename

4417293