计及电池动态损耗的电动汽车分层调度策略  

A hierarchical optimal scheduling strategy for electric vehicles considering dynamic battery loss

作　　者：戴越繁 杨伟[1] Dai Yuefan;Yang Wei(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学自动化学院,南京210094

出　　处：《电测与仪表》2021年第7期19-26,共8页Electrical Measurement & Instrumentation

基　　金：国家电网公司科技项目(JSDL-XLFW-SQ-2016-10-092)。

摘　　要：针对集中式控制方式在进行规模化电动汽车有序控制时优化时间过长,影响控制实时性的问题,提出一种计及电池动态损耗的电动汽车分层调度策略。首先,电动汽车用户计及电池动态放电损耗,以用户用电成本最小为目标建立V2G优化模型,求解得到可接受计划集。接着,本地调度机构以电动汽车接入对负荷波动的平抑效果最好和负荷波动调节产生的额外成本最小为目标建立优化模型,确定实际充放电计划并提交。最后,配电网控制中心针对配电网安全运行约束,对充放电计划进行管理控制,引导不合理的充放电行为。以包含3个本地调度机构的IEEE 33节点配电系统为例,利用MATLAB进行算例仿真,验证了该分层调度策略的可行性和有效性。Aiming at the problem that the optimization time of centralized control mode is too long for orderly control of large-scale electric vehicles,which affects the real-time performance of control,a hierarchical optimal scheduling strategy for electric vehicles considering dynamic battery loss is proposed in this paper.Firstly,considering the dynamic discharge loss of batteries,the V2G optimization model is established to minimize the electricity cost of users,and an acceptable plan set is obtained by solving the model.Secondly,the local scheduling agency establishes the optimization model aiming at the best suppression effect of electric vehicle access on load fluctuation and the minimum additional cost of load fluctuation regulation to determine the actual charging and discharging plan and submit it.Finally,in view of the security constraints of the distribution network,the control center of distribution network manages and controls the charging and discharging plan to guide the unreasonable charging and discharging behavior.In the case of IEEE 33-bus distribution system with three local scheduling agencies,the feasibility and effectiveness of the proposed hierarchical scheduling strategy is verified through using MATLAB for example simulation.

关 键 词：电动汽车 电池损耗 负荷波动调节 分层调度 

分 类 号：TM73[电气工程—电力系统及自动化]