大规模风电机组集中接入对系统短路电流的影响  

Impact of Wind Centralized Access on System Short Circuit Current

作　　者：李媛媛[1] 孙自安 张志刚 张世强 张凌康 贾宏刚 张鑫[1] LI Yuanyuan;SUN Zian;ZHANG Zhigang;ZHANG Shiqiang;ZHANG Lingkang;JIA Honggang;ZHANG Xin(China Electric Power Research Institute,Beijing 100192,China;State Grid Shanxi Electric Power Company,Xi′an 710048,China;State Grid Gansu Electric Power Company Jiayuguan Power Supply Company,Jiayuguan 735199,China;State Grid Shanxi Electric Power Company Economic Research Institute,Xi′an 710065,China)

机构地区：[1]中国电力科学研究院,北京100192 [2]国网陕西省电力公司,陕西西安710048 [3]国网甘肃省电力公司嘉峪关供电公司,甘肃嘉峪关735199 [4]国网陕西省电力公司经济技术研究院,陕西西安710065

出　　处：《中国电力》2018年第4期33-38,88,共7页Electric Power

摘　　要：随着风电集中并网规模的增加,风电对系统短路电流的影响已成为当前电力规划和运行部门的重要关注点。详细分析了各类风电机组的短路特性,并通过实际算例仿真模拟了不同风电接入形式、风电机型及风电装机规模工况下近区母线短路电流的变化情况,从多角度揭示了风电并网对近区母线短路电流的影响规律,量化了风电装机规模对110 kV及以上电压等级并网母线短路电流的贡献幅值,并对考虑短路电流限制因素的风电并网形式和风机选型提出了建议。With centralized integration of large-scale wind farms,the influence of wind power on short circuit current has become an important concern in power planning and operation.Short circuit characteristics of various wind turbines are analyzed in detail.Bus short circuit currents are simulated with practical examples under different access form,wind turbine type and installed capacity.The influence of wind power on short circuit current of near area is revealed from different aspects.Considering limiting factors of short circuit current,certain wind farm access forms and wind turbine types are recommended.The results have important reference for planning and construction work of large scale wind power.

关 键 词：大规模风电 风电集中并网 短路电流 短路特性 母线 

分 类 号：TM614[电气工程—电力系统及自动化]