This paper presents a new multi-photovoltaic panel measurement and analysis system (PPMAS) developed for measurement of atmospheric parameters and generated power of photovoltaic (PV) panels. Designed system presented with an experimental study evaluates performance of four new and four 5-year-old PV panel technologies which are based on polycrystalline (Poly), monocrystalline (Mono), copper indium selenide (CIS), and cadmium telluride (CdTe) in real time, under same atmospheric conditions. The PPMAS system with the PV panels is installed in Yildirim Beyazit University, Ankara Province, in Turkey. The designed PPMAS consists of three different subsystems which are (1) photovoltaic panel measurement subsystem (PPMS), (2) meteorology measurement subsystem (MMS), and (3) data acquisition subsystem (DAS). PPMS is used to measure the power generation for PV panels. MMS involves different types of sensors, and it is designed to determine atmospheric conditions including wind speed, wind direction, outdoor temperature, humidity, ambient light, and panel temperatures. The measured values by PPMS and MMS are stored in a database using DAS subsystem. In order to improve the measurement accuracy, PPMS and MMS are calibrated. This study also focuses on outdoor testing performances of four new and four 5-year-old PV panels. Average monthly panel efficiencies are estimated as 8.46%, 8.11%, 5.65%, and 3.88% for new Mono, new Poly, new CIS, and new CdTe PV panels, respectively. Moreover, average monthly panel efficiencies of old panels are calculated as 8.22%, 7.85%, 5.35%, and 3.63% in the same order. Test results obtained from the experimental system are also statistically examined and discussed to analyze the performance of PV panels in terms of monthly panel efficiencies.

中文翻译：

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使用设计的多光伏板功率测量系统对新旧光伏板技术进行户外性能评估

本文介绍了一种新的多光伏板测量和分析系统 (PPMAS)，该系统用于测量光伏 (PV) 板的大气参数和发电功率。设计的系统通过实验研究评估了基于多晶 (Poly)、单晶 (Mono)、铜铟硒 (CIS) 和碲化镉 (CdTe) 的四种新的和四种已有 5 年历史的光伏面板技术的性能实时，在相同的大气条件下。带有光伏面板的 PPMAS 系统安装在土耳其安卡拉省的耶尔德勒姆贝亚齐特大学。设计的 PPMAS 由三个不同的子系统组成，它们是 (1) 光伏板测量子系统 (PPMS)、(2) 气象测量子系统 (MMS) 和 (3) 数据采集子系统 (DAS)。PPMS 用于测量光伏电池板的发电量。MMS 涉及不同类型的传感器，旨在确定大气条件，包括风速、风向、室外温度、湿度、环境光和面板温度。PPMS 和 MMS 的测量值使用 DAS 子系统存储在数据库中。为了提高测量精度，对PPMS和MMS进行了校准。本研究还重点关注四块新光伏板和四块 5 年旧光伏电池板的户外测试性能。新单晶、新多晶、新 CIS 和新 CdTe 光伏面板的平均月面板效率估计分别为 8.46%、8.11%、5.65% 和 3.88%。此外，旧面板的平均月面板效率按相同顺序计算为8.22％、7.85％、5.35％和3.63％。