电测与仪表2017,Vol.54Issue(2):114-120,7.
不同类型风电场对现有继电保护仿真对比分析
The simulation and comparative analysis of the different types of wind farms on the existing protection relay
摘要
Abstract
The different types of wind farms connecting to grid system shows unique fault features which are different from traditional power supply.There exists an adaptability problem for the application of protection relays based on traditional power supply.According to the fault characteristics of the different types of wind farms,the operation performance of different faults and different operating conditions (the differential element,the directional element,the distance element and the phase-selection element) is simulated and analyzed.The analysis results show that,when the fault current of DFIG wind farm outgoing transmission appears,the wind power system,the frequency of that will deviate,shows poor feedback,which has vicious impact on the protective device based on frequency vector;However,the direct drive wind farm only has partial influence on the negative sequence,zero sequence direction element,the phase-selection element.关键词
双馈/直驱/风电场/送出线路/继电保护Key words
DFIG/direct drive/wind farms/outgoing transmission line/relay protection分类
信息技术与安全科学引用本文复制引用
赵东杰,樊艳芳,王晓飞,常喜强..不同类型风电场对现有继电保护仿真对比分析[J].电测与仪表,2017,54(2):114-120,7.基金项目
国家自然科学基金资助项目(51467019) (51467019)