arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.08579eess.SYcs.SYmath.OC
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安全约束最优潮流中事故响应的改进建模

Enhanced Modeling of Contingency Response in Security-constrained Optimal Power Flow

Tuncay Altun, Ramtin Madani, Alper Atamturk, Ross Baldick, Ali Davoudi

摘要:

本文提供了一个增强的建模的应急响应,共同反映高保真的物理和运行特性的电网。将有功和无功事故响应集成到安全约束最优潮流(SCOPF)问题中具有挑战性,这是由于表示发电机特性的分段曲线所导致的可行集的非光滑性和非凸性。我们引入了一个连续微分模型,使用的功能,非常类似PV/PQ开关和发电机应急响应。这些模型通过优化分配可用发电机之间的有功功率不平衡并决定从PV型切换到PQ型的总线类型来执行物理和操作限制。在IEEE 30节点、300节点和118节点系统上分别计算了12、10和100个事故,验证了该方法的有效性。

英文摘要:

This paper provides an enhanced modeling of the contingency response that collectively reflects high-fidelity physical and operational characteristics of power grids. Integrating active and reactive power contingency responses into the security-constrained optimal power flow (SCOPF) problem is challenging, due to the nonsmoothness and nonconvexity of feasible sets in consequence of piece-wise curves representing generator characteristics. We introduce a continuously-differentiable model using functions that closely resemble PV/PQ switching and the generator contingency response. These models enforce physical and operational limits by optimally allocating active power imbalances among available generators and deciding the bus type to switch from the PV type to the PQ type. The efficacy of this method is numerically validated on the IEEE 30-bus, 300-bus, and 118-bus systems with 12, 10, and 100 contingencies, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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