以山地光伏电站为研究对象,基于不规则三角网（TIN）算法构建等高线转网格化地形模型,结合扫描线算法和地形投射算法构建山地光伏电站的自动化布置模型,并基于多边形（W-A）剪切算法、Perez模型构建阴影遮挡与发电量仿真模型。以重庆某山区的地形数据进行研究,结果表明,自动化布置算法能够有效解决山地三角网格多面布置向单面布置转化的问题。此外,将该文提出的阴影遮挡、辐照度和发电量计算模型与PVsyst仿真结果进行对比,得出阴影遮挡最大误差为0.52%、辐照度平均误差为1%、年发电量误差为0.83%。该模型的发电量偏差小于5%,表明所提方法具有较高的准确性。
Abstract
This article focuses on mountainous photovoltaic （PV） power stations as the research subject. An automated layout model for these power stations is developed based on the TIN algorithm for contour-to-grid terrain modeling, integrated with scanning line and terrain projection algorithms. Additionally, a shadow occlusion and power generation simulation model is constructed using the polygon （W-A） clipping algorithm and the Perez model. This study analyzes terrain data from a mountainous area in Chongqing, demonstrating that the automated layout algorithm effectively resolves the challenge of transforming the multi-faceted layout of triangular grids into a single-faceted layout. Furthermore, the proposed shadow occlusion, irradiance, and power generation models are compared with PVsyst simulation results. The maximum shadow occlusion error is 0.52%, the average irradiance error is 1%, and the annual power generation error is 0.83%. With a power generation deviation of less than 5%, the results indicate that the method presented in this study is highly accurate.
关键词
山地光伏 /
不规则三角网（TIN） /
仿真平台 /
自动布置 /
阴影分析
Key words
mountain photovoltaic /
triangulated irregular network /
simulation platform /
automatic layout /
shadow analysis
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基金
国家重点研发计划（2022YFB4201000）; 国家自然科学基金面上项目（51676063）
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