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首页> 外文期刊>Electric power systems research >A tractable two-step MILP-QCP approach to on-line thermal constraint management in large radial active distribution systems
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A tractable two-step MILP-QCP approach to on-line thermal constraint management in large radial active distribution systems

机译：大型径向主动配电系统中在线热约束管理的易处理的两步MILP-QCP方法

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This paper focuses on centralized thermal overload management in active radial distribution systems which accommodate a significant amount of distributed generation (DG). The approach looks for minimizing the amount of dispatchable DG units curtailment to remove thermal overload while considering the possibility to use remotely controlled switches (RCSs) so as to reduce the amount of curtailed generation. This task is formulated as a mixed integer quadratically constrained programming (MIQCP) problem. In order to break-down the onerous computational burden of this MIQCP problem to runtimes compatible with real-time application to large distribution networks, a tractable two-step approach is proposed. The proposed approach consists in decomposing the original MIQCP problem into a mixed integer linear programming (MILP) approximation and a quadratically constrained programming (QCP) problem. We prove the interest and feasibility of the proposed approach, on a snapshot basis, in three distribution grid models of 34, 137 and 1089 nodes, respectively. Results show that the proposed approach scales much better with the problem size than the original MIQCP approach and provides solutions of comparable quality. (C) 2016 Elsevier B.V. All rights reserved.
机译：本文着重于主动式径向分配系统中的集中式热过载管理，该系统可容纳大量的分布式发电（DG）。该方法寻求最大程度地减少可调度DG单位的数量，以消除热过载，同时考虑使用远程控制开关（RCS）的可能性，以减少削减的发电量。此任务被公式化为混合整数二次约束编程（MIQCP）问题。为了将MIQCP问题的繁重计算负担分解为与大型配电网络实时应用兼容的运行时，提出了一种易于处理的两步方法。所提出的方法包括将原始MIQCP问题分解为混合整数线性规划（MILP）逼近和二次约束规划（QCP）问题。我们在快照的基础上，分别在34个，137个和1089个节点的三个配电网格模型中证明了该方法的兴趣和可行性。结果表明，与原始的MIQCP方法相比，提出的方法在问题规模上的伸缩性要好得多，并且可以提供质量可比的解决方案。 （C）2016 Elsevier B.V.保留所有权利。

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