摘要
针对电动汽车(electric vehicle,EV)充电负荷在空间中的合理布局等问题,现有相关文献主要围绕充电站的选址和定容展开研究,尚未论及如何确定充电站在所属区域配电系统中的电气接入点。在此背景下,该文针对计及对潮流影响的电动汽车充电站电气接入点的选择问题进行探讨。首先,依据电动汽车出行统计数据拟合结果,获得初始荷电状态(state of charge,SOC)及起始充电时刻分布特性,建立电动汽车充电负荷的概率模型,同时利用蒙特卡洛仿真求解,并采用深圳市电动出租车的实际数据对这种方法做了验证。之后,以节点电压偏差百分数和支路有功功率损耗增量百分数为基础,构造了评价充电站对配电系统潮流影响的综合指标,进而提出了确定充电站最优电气接入点的方法。最后,以修改的IEEE 33节点配电系统为例对所提出的方法进行了说明。
The optimal sitting and sizing problem of electric vehicle（ EV） charging stations has been studied in many existing publications for achieving spatially coordinated distributions of EV charging loads as well as other objectives.However,the determination of electrical connecting nodes of EV charging stations in a distribution system has not yet been investigated,and is the subject of this paper with the impacts on power flow considered. First,the distributions of initial charging states and starting charging time points of EVs are attained based on the fitting results of traveling statistics,and a probability model for describing EV charging loads is established and then solved by Monte Carlo simulations with demonstration of actual data of electric taxis in Shenzhen. Then,based on the percentages of bus voltage deviations and branch loss increments,a comprehensive evaluation index is employed for assessing the impacts of EV charging stations on power flow in the distribution system concerned,and the electrical connecting points of EV charging stations in the distribution system are then optimally determined. Finally,a modified version of the IEEE 33-node distribution system is served for demonstrating the proposed method.
作者
郭建龙
文福拴
袁军
吕浩华
俞哲人
GUO Jianlong WEN Fushuan YUAN Jun LYU Haohua YU Zheren(School of Electric Power, South China University of Technology, Guangzhou 510640, China School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China Department of Electrical and Electronic Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Division of Electric Vehicle Service, State Grid Zhejiang Electric Power Company, Hangzhou 310007, China)
出处
《电力建设》
北大核心
2017年第1期1-7,共7页
Electric Power Construction
基金
国家重点基础研究发展计划项目(973计划)(2013CB228202)
国家自然科学基金项目(51477151)
国网浙江省电力公司科研项目(5211DF150007)~~
关键词
配电系统
电动汽车(EV)
充电站
电气接入点
潮流影响
distribution system
electric vehicle（EV）
charging station
electrical connecting node
impacts on power flow
