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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光伏并网逆变器在国网电力科学研究院国家能源太阳能发电研发（实验）中心顺利通过低电压穿越（LVRT）全功能测试，并取得相关测试报告。国网电科院LVRT的测试认证表明西门子SINVERT光伏并网逆变器完全符合国电电网《光伏电站接入电网技术规定》对光伏电站低电压穿越功能的严格要求。此前，西门子SINVERT光伏并网逆变器已经取得欧洲权威机构德国联邦能源和水资源协会（BDEW）的低电压穿越测试认证。
　
　　本次认证由国内权威机构——国家能源太阳能发电研发（实验）中心进行全部测试工作。测试严格依据国家电网《光伏电站接入电网技术规定》和《光伏电站接入电网测试规程》，其中包括三相平衡跌落及单相不平衡跌落测试等功能项。
　
　　低电压穿越（LVRT）指在电网电压发生跌落的情况下，光伏逆变器能够在一定的条件和时间范围内保持并网，直到电网恢复正常。低电压穿越技术是提高电网系统安全稳定性的最大保障，如果光伏逆变器不具备低电压穿越功能，则会增加整个系统的恢复难度，甚至给已经不平衡的电网带来额外的扰动，最终导致系统失稳。随着电站运行经验的不断积累和技术发展，LVRT已经成为全球范围内太阳能光伏发电和风电行业的重要技术要求。2011年起，德国、西班牙等国家已经将该功能列为强制性要求。2011年8月，中国也对光伏并网逆变器的低电压穿越功能提出了强制性要求。
　
　　作为集中式太阳能光伏逆变器的发明者，西门子拥有超过25年的技术积累与应用经验，此次通过认证是对西门子愿与中国用户分享其在太阳能光伏发电领域经验和技术的高度认可。