A novel optimal design of DFIG crowbar resistor during grid faults

Author

Sheng Hu ; Xudong Zou ; Yong Kang

Author_Institution

Sch. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2014

fDate

18-21 May 2014

Firstpage

555

Lastpage

559

Abstract

In order to protect the converter of doubly fed induction generator(DFIG) and realize low voltage ride through(LVRT) during grid faults, the crowbar is usually used , since the resistor value of the crowbar effects DFIG´s rotor current, reactive power output and electrical torque, it ´s design is very crucial for LVRT.A novel optimal design of DFIG crowbar resistor for fault ride-through is proposed in this paper, simulations have been carried out to validate the proposed optimal design, the results demonstrate its effectiveness.

Keywords

asynchronous generators; power convertors; power generation faults; power generation protection; power generation reliability; power grids; resistors; rotors; LVRT; converter protection; crowbar effects; doubly fed induction generator; electrical torque; fault ride through; grid faults; low voltage ride through; optimal DFIG crowbar resistor design; reactive power output; rotor current; Educational institutions; Inductance; Rail to rail inputs; Resistance; Rotors; Stators; DFIG; crowbar; low voltage ride through; wind power;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6869639

Filename

6869639