电动汽车充电站内的实时最优功率分配  

Real-time optimal power allocation inside electric-vehicle charging stations

作　　者：王聪 马彦[1] 王国光[2] WANG Cong;MA Yan;WANG Guo-guang(College of Communication Engineering,Jilin University,Changchun 130022,China;College of Physics,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学通信工程学院,长春130022 [2]吉林大学物理学院,长春130012

出　　处：《吉林大学学报（工学版）》2021年第4期1490-1495,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(U1864201).

摘　　要：随着电动汽车的普及,急需为充电站内的电动汽车设计实时最优的功率分配。针对这一需求,提供了一种可行的功率分配方案。首先,将功率分配问题描述为一个具有线性约束的非线性优化问题。该优化问题中的目标函数由对数效用函数构成。然后,从数学上证明该优化问题的最优解是用户友好的,并为实时获得最优解提供了高效的算法。最后,通过数值仿真验证了本文功率分配方案的性能。In recent years,the number of electric vehicles has been drastically increasing.This situation gives rise to an urgent demand for designing a real-time optimal power allocation inside electric-vehicle charging stations.The goal of this paper is to present one possibility that addresses the aforementioned demand.First,the paper formulates the power-allocation problem as a linearly constrained non-linear optimization where the objective function is constructed via logarithm utility functions.Second,the paper mathematically shows that the optimal solution to the formulated power-allocation problem is user-friendly.Third,the paper presents an efficient algorithm that is able to obtain the optimal solution in real time.Finally,the paper validates the performance of the proposed power allocation through numerical simulations.

关 键 词：优化与控制 电动汽车充电站 实时算法 最优化理论 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]