华电技术 ›› 2016, Vol. 38 ›› Issue (5): 73-76.

• 新能源 • 上一篇    

基于温度修正的光伏电站发电性能评价指标对比分析

  

  1. 苏州中康电力开发有限公司,江苏张家港〓215600
  • 出版日期:2016-05-25 发布日期:2016-07-15

Contrastive analysis on electricity generation performance of photovoltaic power station which based on temperature correction

  1. Suzhou Zhongkang Electric Power Development Company Limited , Zhangjiagang 215600,China
  • Online:2016-05-25 Published:2016-07-15

摘要:

摘要:系统效率(PR)指标是常用的电站评价参数,目前关于光伏电站PR的计算普遍按照IEC 61724—1998《光伏系统性能监测、测量、数据交换和分析导则》的规定进行计算,而未考虑组件电池片温度的影响,故在冬季和夏季会造成PR计算值和实际值存在差异。在传统PR公式的基础上增加了温度修正因子,对比了不同温度修正方法的结果,得出Sunpower温度修正法准确度相对较高的结论,并对不同电池片温度计算方法进行了探讨。

关键词:

Abstract:

Abstract:System efficiency(PR)index is a frequentlyused evaluation parameter for power station, while calculation of PR of photovoltaic power station at present is calculated as per stipulation of IEC 61724—1998 Guide Rule for Performance Monitoring, Measurement, Data Exchange and Analysis of Photovoltaic System, and influence of temperature of unit battery piece is not considered, therefore difference will be caused between calculation value and actual value in winter and summer. The study added temperature correction factor on basis of traditional PR formula, compared result of different temperature correction method, obtained relatively accurate result of Sunpower temperature correction method, and conducted investigation to calculation method of temperature of different battery pieces.

Key words: