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title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" 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title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT" title="SINVERT">SINVERT光伏并網逆變器在國網電力科學研究院國家能源太陽能發(fā)電研發(fā)（實驗）中心順利通過低電壓穿越（LVRT）全功能測試，并取得相關測試報告。國網電科院LVRT的測試認證表明西門子SINVERT光伏并網逆變器完全符合國電電網《光伏電站接入電網技術規(guī)定》對光伏電站低電壓穿越功能的嚴格要求。此前，西門子SINVERT光伏并網逆變器已經取得歐洲權威機構德國聯邦能源和水資源協會（BDEW）的低電壓穿越測試認證。
　
　　本次認證由國內權威機構——國家能源太陽能發(fā)電研發(fā)（實驗）中心進行全部測試工作。測試嚴格依據國家電網《光伏電站接入電網技術規(guī)定》和《光伏電站接入電網測試規(guī)程》，其中包括三相平衡跌落及單相不平衡跌落測試等功能項。
　
　　低電壓穿越（LVRT）指在電網電壓發(fā)生跌落的情況下，光伏逆變器能夠在一定的條件和時間范圍內保持并網，直到電網恢復正常。低電壓穿越技術是提高電網系統(tǒng)安全穩(wěn)定性的最大保障，如果光伏逆變器不具備低電壓穿越功能，則會增加整個系統(tǒng)的恢復難度，甚至給已經不平衡的電網帶來額外的擾動，最終導致系統(tǒng)失穩(wěn)。隨著電站運行經驗的不斷積累和技術發(fā)展，LVRT已經成為全球范圍內太陽能光伏發(fā)電和風電行業(yè)的重要技術要求。2011年起，德國、西班牙等國家已經將該功能列為強制性要求。2011年8月，中國也對光伏并網逆變器的低電壓穿越功能提出了強制性要求。
　
　　作為集中式太陽能光伏逆變器的發(fā)明者，西門子擁有超過25年的技術積累與應用經驗，此次通過認證是對西門子愿與中國用戶分享其在太陽能光伏發(fā)電領域經驗和技術的高度認可。