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Approximate optimal transmission switching

机译:近似最佳传输切换

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Optimal transmission switching (OTS) has been proposed as a new control paradigm to improve the economics of electric power systems. The problem is formulated as mixed integer linear programming in which binary decision variables are used to represent the on and off state of transmission lines. In this paper, we propose an approximate model for the OTS problem to achieve better results in terms of solution quality and computation time. We prove the feasibility and optimality properties of our proposed approximate model through theorems. Through numerical studies we show that our proposed approximate model finds OTS solutions with the same electricity generation cost but with lower number of switched transmission lines in the same or less amount of time. Therefore, number of switched transmission lines is reduced to half, one-third, or even less, depending on the case study. (C) 2018 Elsevier B.V. All rights reserved.
机译:最优传输切换(OTS)已被提出作为一种新的控制范式,以改善电力系统的经济性。该问题被表述为混合整数线性规划,其中二进制决策变量用于表示传输线的通断状态。在本文中,我们提出了一个关于OTS问题的近似模型,以在求解质量和计算时间方面获得更好的结果。我们通过定理证明了我们提出的近似模型的可行性和最优性。通过数值研究,我们表明,我们提出的近似模型可以找到具有相同发电成本,但在相同或更少的时间内交换输电线路数量较少的OTS解决方案。因此,根据案例研究,切换的传输线的数量减少到一半,三分之一甚至更少。 (C)2018 Elsevier B.V.保留所有权利。

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