论文摘要
Doubly-fed induction generator（DFIG）-based wind farm has the characteristic of transient fault with low voltage ride through（LVRT） capability. A new three-phase fault direction identification method for the outgoing transmission line of the wind farm is presented. The ability of the new directional relay to differentiate between a three-phase fault in one direction or the other is obtained by using the increment of phase angle difference between the memory voltage signal and the fault current signal within a certain time, and using the amplitude variation of the fault current. It can be inferred that the fault current is supplied by the wind farm whether the phase angle differs or the current amplitude varies considerably. Different fault locations at the outgoing transmission line have been simulated by PSCAD/EMTDC to evaluate the reliability and sensitivity of the proposed technique. Results show that the new directional relay is of faster response when a three-phase fault occurs at the outgoing transmission line of a DFIG-based wind farm.
论文目录
文章来源
类型: 期刊论文
作者: Zhanfeng FAN,Guobing SONG,Xiaoning KANG,Jisi TANG,Xiaobo WANG
来源: Journal of Modern Power Systems and Clean Energy 2019年05期
年度: 2019
分类: 工程科技Ⅱ辑
专业: 电力工业
单位: Xi'an Jiaotong University,State Grid Beijing Electric Power Company,State Grid Shanxi Maintenance Company
基金: supported by National Basic Research Program of China (No. 2012CB215105)
分类号: TM614;TM75
页码: 1155-1164
总页数: 10
文件大小: 880K
下载量: 4