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发明公开
CN105720915A 光伏发电系统发电效率的检测方法及装置 无效 - 驳回

光伏发电系统发电效率的检测方法及装置
摘要：
本发明提供了一种光伏发电系统发电效率的检测方法及装置，涉及光伏发电技术领域。所述方法包括：监测逆变器、直流配电柜、汇流箱和光伏组串的运行参数；确定光伏组串发电效率、汇流箱传输效率、配电柜传输效率、并网逆变器转换效率；根据所述光伏组串发电效率、汇流箱传输效率、配电柜传输效率以及并网逆变器转换效率确定所述光伏发电系统发电效率。解决了当前在光伏发电系统运行时，仅有对光伏发电系统的一些基本参数的监控测量，而对光伏发电系统的发电效率并没有实时的获取和计算方式，造成无法及时获知光伏发电系统中的发电设备的运行状态的问题。
摘要（英）：

The invention provides a method and a device for detecting the power generation efficiency of a photovoltaic power generation system, and relates to the technical field of photovoltaic power generation. The method comprises: monitoring operating parameters of an inverter, a direct current distribution cabinet, a combiner box and a photovoltaic string; determining the power generation efficiency of the photovoltaic string, the transmission efficiency of the combiner box, the transmission efficiency of the distribution cabinet and the conversion efficiency of the grid-connected inverter; and determining the power generation efficiency of the photovoltaic power generation system according to the power generation efficiency of the photovoltaic string, the transmission efficiency of the combiner box, the transmission efficiency of the distribution cabinet and the conversion efficiency of the grid-connected inverter. The method and the device solve the problem that when the photovoltaic power generation system runs, only some basic parameters of the photovoltaic power generation system are monitored and measured currently, whereas the power generation efficiency of the photovoltaic power generation system is not acquired or calculated in real time, so that the operating state of power generation equipment in the photovoltaic power generation system cannot be learnt in time.

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