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首页> 外文期刊>Energy Conversion & Management >Hourly Distributions Of The Diffuse Fraction Of Global Solar Irradiation In Cordoba (spain)
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Hourly Distributions Of The Diffuse Fraction Of Global Solar Irradiation In Cordoba (spain)

机译:西班牙科尔多瓦全球太阳辐射扩散分数的小时分布

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摘要

Hourly global irradiations on tilted planes are required for dimensioning PV systems. However, for most sites, only global irradiations on a horizontal plane are available, and, given that to calculate the global irradiation on inclined planes the first step is to determine the diffuse component and this is not collected, we have studied the behaviour of the diffuse component on an hourly basis. Most parametrization models for the derivation of hourly diffuse irradiance from hourly global irradiance involve the clearness index, a parameter that implicitly includes solar altitude. The present paper has focused on the possibility of also including "mean solar altitude a" explicitly as a parameter in addition to the clearness index. Several analytical models are proposed, validated and compared here, using solar data collected on our station located in Cordoba (Spain).
机译:为确定光伏系统的尺寸,需要每小时在倾斜平面上进行一次全局照射。但是,对于大多数站点而言,只有在水平面上的全局辐照才可用,并且鉴于要计算在倾斜面上的全局辐照,第一步是确定散射分量,而没有收集到该分量,因此我们研究了每小时扩散一次组件。从小时全球辐照度导出时散辐射辐照度的大多数参数化模型都涉及到净度指数,该参数隐含地包括太阳高度。本文着眼于除了净度指数外还明确包括“平均太阳高度a”作为参数的可能性。使用在我们位于西班牙科尔多瓦的气象站收集到的太阳能数据,在此提出,验证和比较了几种分析模型。

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