并网光伏电站发电效率快速估算实用模型
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引用本文:石磊,侯学良.并网光伏电站发电效率快速估算实用模型[J].电网与清洁能源,2018,34(2):161~166
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作者单位
石磊 华北电力大学 工程技术与管理研究所 
侯学良 华北电力大学 工程技术与管理研究所 
基金项目:国家自然科学基金项目(71171081);北京市自然科学基金项目(9162014)
中文摘要:光伏电站运行性能的最终指标是系统效率。基于光伏电站的系统结构和能量传输过程,将光伏电站系统分为3段,建立了发电效率快速估算模型。以内蒙古某20 MW光伏电站为例,通过其简单易得的监控数据计算出每一段的效率,将各段效率相乘,估算出该电站发电系统总效率约为88.78%。此外也大致得出了光伏组件、逆变器和变压器等关键设备的工作情况,可为电站的后期运维以及管理提供一定参考。
中文关键词:光伏电站  发电效率  快速估算
 
A Practical Model for Rapid Estimation of Generation Efficiency of Grid-Connected PV Power PlantsSHI Lei, HOU Xueliang
Abstract:The final index of the PV power plant performance is a systematic efficiency. Based on the PV power station’s system structure and energy transmission process, the PV power plant system is divided into four sections, and a rapid power generation efficiency estimation model is established. Taking a 20MW photovoltaic power plant in Inner Mongolia as an example, the efficiency of each section is calculated through its simple and easy monitoring data, and with the efficiency of each section multiplied, the total efficiency of the power generation system is estimated to be about 88.78%. In addition, the performance of the key equipment such as PV modules, inverters and transformers is roughly obtained, which can provide some reference for the operation and maintenance and management of power plants at the later stage.
keywords:photovoltaic power station  generation efficiency  rapid estimation
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