摘要
根据车辆调查数据,在合理的假设条件下考虑影响充电负荷模型的主要随机特性的概率分布,建立了3种充电方式的概率负荷模型。对IEEE 33节点系统加入时变特性,提出了3种充电方式以不同渗透率比例接入配电网时对负荷曲线及节点电压影响的计算方法。计算结果表明,不同充电方式接入比例的不同,会使得配电网的动态概率特性相差很大,常规充电方式对电网稳定性影响最大;更换电池方式可以减少负荷的峰谷差,降低节点电压越限的概率,有利于电网的高效、安全运行。
Based on the vehicle survey data and considering the probability distribution of the main stochastic characteristics of the charging load model under reasonable assumptions,three probabilistic load models for charging modes are established.Joining the time-varying characteristic to the IEEE 33-bus system,the calculation method of the influence on load curves and node voltage under three charging modes connecting to distribution network with different penetration rates is proposed.The calculation results show that the different charging modes accessing under the different proportion can make the dynamic probability characteristics vary greatly,and the traditional charging mode has the greatest impact on the stability of power grid;the battery replacement can reduce the valley-to-peak of load,reduce the out-of-limit probability of the node voltage,and is conducive to the efficient and safe operation.
作者
杜习超
刘永民
徐则诚
李甜甜
黄景慧
贾鹏
刘万勋
殷奕恒
胡钋
DU Xichao;LIU Yongmin;XU Zecheng;LI Tiantian;HUANG Jinghui;JIA Peng;LIU Wanxun;YIN Yiheng;HU Po(Economic and Technical Research Institute of State Grid Henan Electric Power Company,Zhengzhou 450000, China;School of Electrical Engineering, Wuhan University, Wuhan 430072, China)
出处
《电力自动化设备》
EI
CSCD
北大核心
2018年第6期124-130,共7页
Electric Power Automation Equipment
基金
国家高技术研究发展计划(863计划)资助项目(2015AA050101)~~
关键词
电动汽车
充电方式
蒙特卡洛模拟
动态概率特性
electric vehicles
charging modes
Monte Carlo simulation
dynamic probability characteristics
