Optimal Decentralized Microgrid Coordination via the Schur’s Complement and S-Procedure
Optimal Decentralized Microgrid Coordination via the Schur’s Complement and S-Procedure
复制标题
通过 Schur 补集和 S 程序实现最佳分散式微电网协调
DOI：
10.1109/tsg.2019.2922626
复制
发表时间：
2020
影响因子：
9.6
通讯作者：
Pirathayini Srikantha
中科院分区：
文献类型：
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作者：
M. Mallick;Pirathayini Srikantha
电力行业不断变化的格局以及日益增加的环境问题要求现代电网更加高效、可持续和适应性强。微电网通常由分布式能源组成，具有实现能源独立性、可持续性和灵活性的巨大潜力。然而，阻碍微电网广泛部署的实际困难包括当地发电来源（例如，可再生能源）的不可预测性以及在包含大量同步电厂的系统中自然存在的惯性的缺乏。在本文中，我们提出了一种近乎实时的微电网协调算法，该算法允许驱动组件适应不断变化的系统条件。我们通过在$dq0$框架中构建电压/电流平衡关系，并应用策略分解来调用允许零对偶间隙的舒尔互补和s过程，来解释微电网系统中的电气依赖性和限制。我们通过理论和比较实际的模拟研究强调了所提出的分散算法的收敛性、可行性和可扩展性特征。
The evolving landscape of the electricity sector along with increasing environmental concerns necessitate modern power grids to be more efficient, sustainable, and adaptive. Microgrids are typically composed of distributed energy sources which have great potential for enabling energy independence, sustainability, and flexibility. However, practical difficulties that deter the widespread deployment of microgrids include the unpredictability of local generation sources (e.g., renewables) and the lack of inertia that is naturally present in systems containing bulk synchronous plants. In this paper, we propose a near real-time microgrid coordination algorithm that allows actuating components to adapt to changing system conditions. We account for the electrical dependencies and limits in microgrid systems by constructing voltage/current balance relations in the $dq0$ frame and applying strategic decompositions to invoke the Schur’s complement and S-procedure that allow for zero duality gap. We highlight the convergence, feasibility, and scalability features of the proposed decentralized algorithm via theoretical and comparative practical simulation studies.