arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.10304eess.SYcs.SY
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动态Transformer额定值下电动汽车充电分布式控制

Distributed Control of Charging for Electric Vehicle Fleets under Dynamic Transformer Ratings

Micah Botkin-Levy, Alexander Engelmann, Tillmann Mühlpfordt, Timm Faulwasser, Mads Almassalkhi

摘要:

由于其巨大的电力消耗和不断增长的采用率,电动汽车(EV)将成为配电网的重大挑战。然而,通过适当的充电控制策略,可以在不需要昂贵的电网加固的情况下减轻挑战。本文提出并分析了新的分布式充电控制方法,以协调电动汽车充电非线性Transformer温度额定值。具体而言,我们评估所需的数据通信,计算效率和最优性保证不同的控制策略的基础上的凸松弛的底层非线性Transformer温度动态之间的权衡。经典的分布式控制方法,如那些基于对偶分解和交替方向的乘法器(ADMM)与新的增广拉格朗日为基础的交替方向不精确牛顿(ALADIN)方法和一种新的低信息,前瞻版本的分组能量管理(PEM)进行了比较。这些算法的实施和分析的两个案例研究住宅和商业电动汽车车队。仿真结果验证了新的方法,并提供关键的权衡见解。

英文摘要:

Due to their large power draws and increasing adoption rates, electric vehicles (EVs) will become a significant challenge for electric distribution grids. However, with proper charging control strategies, the challenge can be mitigated without the need for expensive grid reinforcements. This manuscript presents and analyzes new distributed charging control methods to coordinate EV charging under nonlinear transformer temperature ratings. Specifically, we assess the trade-offs between required data communications, computational efficiency, and optimality guarantees for different control strategies based on a convex relaxation of the underlying nonlinear transformer temperature dynamics. Classical distributed control methods such as those based on dual decomposition and alternating direction method of multipliers (ADMM) are compared against the new Augmented Lagrangian-based Alternating Direction Inexact Newton (ALADIN) method and a novel low-information, look-ahead version of packetized energy management (PEM). These algorithms are implemented and analyzed for two case studies on residential and commercial EV fleets. Simulation results validate the new methods and provide insights into key trade-offs.

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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