arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1602.01969math.OCcs.SYeess.SY
收藏

基于最优无功控制的电压应力最小化

Voltage stress minimization by optimal reactive power control

Marco Todescato, John W. Simpson-Porco, Florian Dörfler, Ruggero Carli, Francesco Bullo

摘要:

电力系统中的一个标准操作要求是电压幅值位于预先指定的范围内。传统的工程智慧表明,这种严格调节的配置文件,强加的系统设计的目的和良好的网络操作,也应该保证一个安全的系统,操作远离静态分叉不稳定性,如电压崩溃。然而,总的来说,这两个目标是不同的,必须分别执行。我们制定了一个最优化问题,最大限度地通过注入无功功率的电压崩溃的距离,受潮流和操作电压约束。通过利用一个线性逼近的潮流方程,我们到达一个凸的重新制定,可以有效地解决了最佳的注入。我们还解决了规划问题的资源分配,通过重铸我们的问题,在稀疏促进框架,使我们能够选择所需的折衷之间的最优注射和所需的执行器的数量。最后,我们提出了一个分布式算法来解决最优化问题,表明它可以实现在线反馈控制器。我们用IEEE30总线网络说明了我们的结果的性能。

英文摘要:

A standard operational requirement in power systems is that the voltage magnitudes lie within prespecified bounds. Conventional engineering wisdom suggests that such a tightly-regulated profile, imposed for system design purposes and good operation of the network, should also guarantee a secure system, operating far from static bifurcation instabilities such as voltage collapse. In general however, these two objectives are distinct and must be separately enforced. We formulate an optimization problem which maximizes the distance to voltage collapse through injections of reactive power, subject to power flow and operational voltage constraints. By exploiting a linear approximation of the power flow equations we arrive at a convex reformulation which can be efficiently solved for the optimal injections. We also address the planning problem of allocating the resources by recasting our problem in a sparsity-promoting framework that allows us to choose a desired trade-off between optimality of injections and the number of required actuators. Finally, we present a distributed algorithm to solve the optimization problem, showing that it can be implemented on-line as a feedback controller. We illustrate the performance of our results with the IEEE30 bus network.

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。

↑