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Analyzing and Simulating the Variability of Solar Irradiance and Solar PV Powerplants.

机译:分析和模拟太阳能辐照度和太阳能光伏电站的可变性。

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摘要

Solar energy is a promising renewable resource, but the variability of solar photovoltaic (PV) power due to cloud-caused fluctuations is a concern for electric grid operators. Fortunately, though, the relative variability of a PV powerplant will be reduced due to the geographic diversity within the plant. The amount of the variability reduction (VR) will depend on the geometry of the plant, the timescale of interest, and the local meteorological conditions. This work focuses on quantifying and modeling the VR in scaling up from an irradiance point sensor to a PV powerplant. The dependence of VR on timescale is demonstrated using high-frequency data and the wavelet transform. The wavelet variability model (WVM), which simulates the variability of a PV powerplant by estimating the VR at each timescale, is developed and validated. Inputs to the WVM are a point sensor irradiance timeseries, the powerplant layout, and the cloud speed. As an example application, the WVM is used to simulate the numbers of ramps larger than 10% of capacity per minute at various sizes of PV powerplants in Puerto Rico.
机译:太阳能是一种有前途的可再生资源,但是由于云引起的波动,太阳能光伏(PV)功率的变化是电网运营商关注的问题。幸运的是,由于电厂内部的地理多样性,PV电厂的相对可变性将降低。减少变异性(VR)的数量将取决于植物的几何形状,感兴趣的时间范围以及当地的气象条件。这项工作着重于量化和建模从辐照度点传感器到光伏电站的VR。使用高频数据和小波变换证明了VR对时标的依赖性。开发并验证了小波变异性模型(WVM),该模型通过估计每个时标的VR来模拟光伏电站的变异性。 WVM的输入是点传感器辐照时间序列,动力装置布局和云速度。作为示例应用程序,WVM用于模拟波多黎各各种规模的光伏电站中每分钟大于容量的10%的斜坡数量。

著录项

  • 作者

    Lave, Matthew S.;

  • 作者单位

    University of California, San Diego.;

  • 授予单位 University of California, San Diego.;
  • 学科 Alternative Energy.;Engineering Environmental.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 136 p.
  • 总页数 136
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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