Title :
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
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;
Conference_Titel :
Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International
Conference_Location :
Hiroshima
DOI :
10.1109/IPEC.2014.6869639
