Irradiance modelling for bi-facial PV modules using the ray tracing technique

2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA) Pub Date : 2019-01-01 DOI:10.1109/ROBOMECH.2019.8704817

J. Louw, A. Rix

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引用次数: 4

Abstract

Bi-facial PV modelling software is scarce and existing software mainly implements the view factor model which may neglect a number of effects that greatly influence the rear side irradiance of bi-facial modules. This paper shows the results of bi-facial PV simulation software that is being developed by implementing the ray tracing technique to model the factors that lead to increased energy yields of bi-facial PV technology. A bi-facial PV plant is modelled by interfacing Radiance (ray tracing software) with python based simulation software. Simulation results are compared with real world irradiance measurements to determine the accuracy of the developed software model. The preliminary results of the simulation software are promising and show that ray tracing techniques can satisfy the shortcomings of existing bi-facial PV simulation software with more accurate modelling of the rear side irradiance of modules.

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使用光线追踪技术的双面光伏组件辐照度建模

双面光伏建模软件较少，现有软件主要实现视因子模型，可能忽略了一些对双面模块背面辐照度影响较大的效应。本文展示了双面光伏模拟软件的结果，该软件正在通过实施光线追踪技术来模拟导致双面光伏技术能源产量增加的因素。通过将Radiance(光线追踪软件)与基于python的仿真软件相结合，对双面光伏电站进行了建模。仿真结果与实际辐照度测量结果进行了比较，以确定所开发的软件模型的准确性。该模拟软件的初步结果表明，光线追踪技术可以弥补现有双面光伏模拟软件的不足，更准确地模拟组件的背面辐照度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA)

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