光伏系统
电流电压监测

减少光伏电站分布式测量点

作为全球能源转型的重要组成部分，光伏电站的建设规模不断扩大。而提升光伏电站的效率，是电站运营商一贯追求的目标——在严控成本的同时提高发电量和能量转化率。将系统电压从 1,000 V DC 升级提升到 1,500 V DC，已然成为大势所趋。从经济和安全角度来看，在逆变站引入高品质高压测量技术，可为运营商创造显著效益。

逆变器——光伏系统的核心组件

作为光伏电站的核心组件，逆变器负责将光伏模块的直流电转换成交流电，然后馈入电网。同时持续监测电压、电流、功率等电站基础参数。这些数据对于最大功率点追踪 (MPPT) 至关重要，而借助 MPPT 可以精准优化每块光伏电池的性能。此外，逆变站内配置的变送器还可及早发现因线路中断或其他故障导致的功率下降。

Why Knick ?
P40000 系列高压变送器已在光伏电站电流电压监测领域充分证明其可靠性。高达 1,800 V 的加强绝缘设计完美适配 1,500 V 光伏系统，为保证人员以及下游控制和评估系统的安全提供有力保障。现场数据显示，此系列产品具备超长平均故障间隔——长达2,700 年。

减少分布式测量点数量

在逆变站中安装精密高压变送器，往往能够实现集中化监测。这样不但能降低成本，还可削减以往需在每个组串（即一系列串联的光伏模块）上设置的测量点。P41000 系列变送器以 < 0.1 % 的增益误差和 < 110 μs 的 T₉₀ 响应时间精准监测电流，几乎无延迟地将测量值转换成标准信号传输至逆变器。由此可获得精确的总电流测量结果，电站运营商可据此及时发现微小偏差，轻松定位光伏阵列故障源。P42000 系列变送器则在（组串）电压监测方面表现突出。由于增益误差 < 0.3 %、T₉₀ 响应时间 < 110 μs，P42000 能确保提供精确的测量值，从而及时检测到功率损耗以及过载或短路等潜在危险。

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光伏系统
电流电压监测

减少光伏电站分布式测量点

逆变器——光伏系统的核心组件

减少分布式测量点数量

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