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昌吉—古泉特高壓直流輸電工程進行帶電調試

發布日期: 2018-10-25 信息來源: 管理員


  本報訊 10月2日20時18分,隨著昌吉換流站極Ⅰ低端換流器成功解鎖,由國家電網有限公司直流建設分公司建管的±1100千伏昌吉—古泉特高壓直流輸電工程全線通電。該工程第一階段±550千伏雙極低端直流系統端對端帶電調試正式開始,截至10月8日,已完成167項相關帶電調試。

  工程全線通電后,分兩個階段調試。目前正在進行的昌吉換流站和古泉換流站端對端帶電調試,主要含極Ⅰ極Ⅱ低端換流器及雙極低功率試驗(正送)、直流偏磁測試、直流線路故障試驗、交流線路故障、接地極線路故障、極Ⅰ極Ⅱ低端換流器低功率試驗(反送)、極Ⅰ極Ⅱ低端換流器大功率試驗(正送)等15個大類試驗項目,共計221個小類試驗項目。調試完成后,該線路可實現電壓±550千伏、輸送容量600萬千瓦運行。此后,第二階段±1100千伏雙極高端直流系統端對端帶電調試將啟動,預計今年年底線路電壓等級升至±1100千伏運行,屆時該線路將正式投運,輸送容量將達到1200萬千瓦。

  ±1100千伏昌吉—古泉特高壓直流輸電工程是世界電壓等級最高、輸送容量最大、輸送距離最遠、技術水平最先進的特高壓工程。該工程起于新疆昌吉換流站,止于安徽古泉換流站,建成后每年可向華東地區輸送電量660億千瓦時,減少煤炭運輸3024萬噸,減排二氧化碳5940萬噸、二氧化硫14.9萬噸、氮氧化物15.7萬噸,將有利于控制華東地區火電規模,推動能源環境協調發展。該線路正式投運后,將為新疆“疆電外送”提供一條空中大通道,大幅提高新疆火電、風電、太陽能發電打捆外送能力。

  國網直流公司在昌吉換流站工程建設中,以“高、細、準、嚴、精”為總體要求,嚴格落實安全文明施工和標準化作業。該公司創新應用“互聯網+”智慧工地建設、三維可視化技術、VR全景技術、3D打印技術等,安全、優質、高效地完成了建設任務。
 

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