Adaptability Analysis of Sampled Value Differential Protection in Bus with Double-Fed Wind Farm Entrance Line

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Song, Jiehui^1 ; Yang, Bingyuan^1 ; Wu, Junjie^1

School of Electric Power, Inner Mongolia University of Technology, Hohhot

010080, China^1

关键词: Differential protection;    Double-fed wind farms;    Doubly-fed;    Fault characteristics;    Frequency offsets;    Sampled value differential protection;    Sampled values;    Simulation platform;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/4/042104/pdf
DOI  :  10.1088/1757-899X/394/4/042104

来源: IOP

【 摘 要 】

When there is a fault located in a bus with the incoming line of doubly-fed wind field, the short-circuit current will contain the weak feed, frequency offset and other fault characteristics of the double-fed wind farm. This will restrict the rapidity of differential protection of the bus sampled value to a certain extent. In this paper, a sampled value differential protection model in bus with doubly fed wind farm incoming lines is built based on RTDS simulation platform. Through simulation, it is proved that the adaptability of the sampled value differential protection in the background is poor.