论文标题

基于快速应急滤波方法,能源水连接的安全性最佳操作

Security-Constrained Optimal Operation of Energy-Water Nexus based on a Fast Contingency Filtering Method

论文作者

Goodarzi, Mostafa, Li, Qifeng

论文摘要

由于电力驱动的水设施的数量越来越多,水和电力系统越来越相互依存。一个系统的安全性可能会受到另一个系统的意外情况的影响。本文调查了能量水连接(EWN)的安全受限的操作问题,这是由于非线性,非凸性和大小而引起的计算挑战性优化问题。我们根据意外情况的可行性和评级来减少问题的大小,提出了一种两步迭代的偶然性滤波方法。通过考虑无法通过纠正措施控制的一组意外事件,可以在正常情况下获得最佳功率和水流。意外情况的可行性检查是在第二步中执行的,其次是不可控制的偶然性的评分。最后,获得关键意外情况并将其添加到下一次迭代的第一步中。我们还采用凸技术来减轻计算负担。提出的方法通过两个案例研究验证。结果表明,这种方法可以有效地达到最佳值。

Water and power systems are increasingly interdependent due to the growing number of electricity-driven water facilities. The security of one system can be affected by a contingency in the other system. This paper investigates a security-constrained operation problem of the energy-water nexus (EWN), which is a computationally challenging optimization problem due to the nonlinearity, nonconvexity, and size. We propose a two-step iterative contingency filtering method based on the feasibility and rating of the contingencies to decrease the size of the problem. The optimal power and water flow are obtained in a normal situation by considering the set of contingencies that can not be controlled with corrective actions. The feasibility check of the contingencies is performed in the second step, followed by a rating of the uncontrollable contingencies. Finally, the critical contingencies are obtained and added to the first step for the next iteration. We also employ convex technologies to reduce the computation burden. The proposed method is validated via two case studies. Results indicate that this approach can efficiently attain optimal values.

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