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Impact of the changes of operation parameters of wind farm on distance protection of output transmission line
Author(s): 
Pages: 64-69
Year: Issue:  15
Journal: Relay

Abstract: 在我国,风电场出口输电线路配置有距离保护,由于过渡电阻的存在,保护动作特性仍然会受系统运行参数的影响.概述了风电场接入电力系统对继电保护影响的研究现状,分析了双馈风机的短路特性并介绍了风电场的保护配置,用vc++开发了计及潮流与过渡电阻的电力系统短路计算软件.含东台风电场的系统算例表明:过渡电阻一定时,风机有功出力、功率因数增大,则保护测量电抗减小,甚至可能出现负值;风机并网数量在不同故障类型时对...
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