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RESULTS OF A 4.8 kWP GRID-CONNECTED PHOTOVOLTAIC SYSTEM MONITORING

机译：4.8 kWP并网光伏系统的监测结果

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A 4.8 kWP photovoltaic grid-connected system was set up in 2004 at the UFRGS Solar EnergyLaboratory. This system is composed by 48 modules with monocrystalline silicon cells, divided in 3 identical arraysof 16 modules that feed three single phase 1 kW nominal inverters. Each array is composed by two parallel strings of8 modules in series. Prior to the assembling of the PV arrays, each module was individually characterized. The PVsystem is being monitoring by an acquisition data unit connected to a computer, which registers several electric andclimatic data once in a minute, such as solar irradiance, ambient temperature, PV module temperature and DC andAC electric voltages and currents. The arrays are equipped with switches that allow the array to be modified from 16to 14 or 12 modules thus providing the possibility of different sizing factors of the inverters. This paper presents theinstallation of the system, the main energetic results including yearly averaged parameters and several systempeculiarities that are observable thanks to the detailed monitoring.
机译：2004年在UFRGS太阳能公司建立了一个4.8 kWP光伏并网系统 实验室。该系统由48个单晶硅电池模块组成，分为3个相同的阵列 的16个模块，可为三个单相1 kW标称逆变器供电。每个数组由两个并行的字符串组成 串联8个模块。在组装光伏阵列之前，分别对每个模块进行表征。光伏 系统正在通过连接到计算机的采集数据单元进行监视，该计算机记录了数个电 每分钟一次的气候数据，例如太阳辐照度，环境温度，光伏组件温度以及直流和 交流电压和电流。阵列配有开关，可从16个阵列进行修改 至14或12个模块，从而提供了不同尺寸的逆变器的可能性。本文介绍了 系统的安装，主要的能量结果包括年度平均参数和多个系统 通过详细的监控，可以观察到一些特殊之处。

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