Aggregation Feasible Region of Full Power Spectrum Electric Vehicles Based on Polyhedron Projection

IF 8.6 1区工程技术 Q1 ENERGY & FUELS

IEEE Transactions on Sustainable Energy Pub Date : 2025-02-24 DOI:10.1109/TSTE.2025.3544640

Leidong Yuan;Qingguang Yu;Xin Yao;Min Guo

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Abstract

The aggregation of electric vehicles (EVs) can take full advantage of the power flexibility of EV clusters, based on the aggregation feasible region (AFR) of EVs. However, existing aggregation techniques of conventional distributed energy resources (DERs), exhibit significant inaccuracies or require excessive computational efforts when applied to EVs with high power and small capacity. To solve this problem, an iterative method based on the high dimensional polyhedron projection principle is proposed to derive the exact AFR formula for the full power spectrum of EVs, and the limitations of the existing analytical AFR are revealed. The results reveal that the exact AFR is a set of linear inequalities, whose coefficients can be represented in binary code, and the complexity of the right side is linear with the number of EVs, making it highly conducive to programming calculations. Moreover, this paper proposes a simplified practical AFR based on the exact AFR, which reduces computational complexity. Numerical simulation cases demonstrate that the accuracy of this simplified approach is still higher than that of existing methods.

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基于多面体投影的电动汽车全功率谱聚集可行域

基于电动汽车的聚合可行区域（AFR），实现电动汽车集群的聚合，充分利用电动汽车集群的功率灵活性。然而，现有的传统分布式能源聚合技术在应用于大功率小容量电动汽车时，表现出明显的不准确性或需要过多的计算量。为了解决这一问题，提出了一种基于高维多面体投影原理的迭代方法，推导出电动汽车全功率谱的精确AFR公式，并揭示了现有解析式AFR的局限性。结果表明，精确的AFR是一组线性不等式，其系数可以用二进制表示，且右侧的复杂度与ev数量呈线性关系，非常有利于规划计算。并在精确AFR的基础上提出了一种简化的实用AFR，降低了计算复杂度。数值模拟实例表明，该简化方法的精度仍高于现有方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Sustainable Energy ENERGY & FUELS-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

21.40

自引率

5.70%

发文量

215

审稿时长

5 months

期刊介绍： The IEEE Transactions on Sustainable Energy serves as a pivotal platform for sharing groundbreaking research findings on sustainable energy systems, with a focus on their seamless integration into power transmission and/or distribution grids. The journal showcases original research spanning the design, implementation, grid-integration, and control of sustainable energy technologies and systems. Additionally, the Transactions warmly welcomes manuscripts addressing the design, implementation, and evaluation of power systems influenced by sustainable energy systems and devices.