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Towards multi-timescale energy provisioning using Stochastic Dual Dynamic Programming

机译:使用随机双重动态规划实现多时标能源供应

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The operation of the electric grid in systems with a large hydroelectric component is often cast as a dynamic programming problem, in which state variables are reservoir levels. To avoid the curse of dimensionality in discretizing such states, the SDDP technique has been successfully applied. However, new demands are being placed on the optimization, with the penetration of renewable sources of faster variability, and the possible incorporation of shorter term energy storage.In this paper, we present preliminary work on extending the SDDP framework to such two time-scale problems. We apply the method to a stylized model of the Uruguayan system, relying on new open source implementations of SDDP to carry out the computations. Our results indicate that the method remains tractable despite the increased problem dimension.
机译:电网在具有较大水力发电组件的系统中的运行通常被视为动态规划问题,其中状态变量为水库水位。为了避免在离散这些状态时出现维数的诅咒,SDDP技术已成功应用。然而,随着对快速变化的可再生资源的渗透以及短期能量存储的可能整合,对优化提出了新的要求。在本文中,我们提出了将SDDP框架扩展到这两个时间尺度的初步工作。问题。我们将这种方法应用于乌拉圭系统的程式化模型,依靠SDDP的新开源实现来进行计算。我们的结果表明,尽管问题规模增加,该方法仍然易于处理。

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