基于可再生能源的微电网稳健分布式能源管理

Yu Zhang, Nikolaos Gatsis, G. Giannakis
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引用次数: 33

摘要

由于低通信开销和对故障的鲁棒性,分布式能源管理在智能电网中至关重要,特别是在以分布式发电(DG)为特征的微电网中。研究了并网模式下具有可再生能源渗透和需求侧管理的微电网的分布式经济调度问题。为了解决可再生能源的内在随机可用性问题,提出了一种新的电力调度方法,将实际可再生能源和与主电网交易的能源结合起来,影响供需平衡。其最优性是最小化微电网成本,其中包括传统的DG成本和res中不确定性引起的最坏情况交易成本。利用对偶分解,以分布式方式解决所制定的优化问题。数值结果证实了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Robust distributed energy management for microgrids with renewables
Due to the low communication overhead and robustness to failures, distributed energy management is of paramount importance in smart grids, especially in microgrids, which feature distributed generation (DG). Distributed economic dispatch for a microgrid with renewable penetration and demand-side management operating in the grid-connected mode is considered in this paper. To address the challenge of intrinsically stochastic availability of renewable energy sources (RES), a novel power scheduling approach involving the actual renewable energy as well as the energy traded with the main grid is introduced, effecting the supply-demand balance. Its optimality amounts to minimizing the microgrid net cost, which includes conventional DG cost as well as worst-case transaction cost stemming from the uncertainty in RES. Leveraging the dual decomposition, the optimization problem formulated is solved in a distributed fashion. Numerical results are reported to corroborate the effectiveness of the novel approach.
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