负载隔离式电动汽车动力电池建模及仿真研究  

Modeling and Simulation of Load Isolated Electric Vehicle Batteries

作　　者：王新亮[1] 张洪信[1] 赵清海[2] 尹怀仙[1] 张铁柱[2] 宋翠萍[1] 

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛大学动力集成及储能系统工程技术中心,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2017年第1期83-87,98,共6页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：国家高技术研究计划项目(2014AA052303);山东省科技发展计划项目(2014GGX103044);青岛市战略性新兴产业培育计划项目(14-8-1-2-gx)

摘　　要：针对传统电动汽车采用单一电池组作为储能系统导致动力电池组发生过充、过放和过热等问题,本文基于负载隔离式电动汽车工作特性,提出了两组动力电池交替放电为车辆提供能量。分别搭建两组动力电池仿真模型,结合动力电池运行基本参数,在Matlab/Simulink环境下建立了基于逻辑门限值方法的动力电池充放电切换控制策略;在Advisor中串联式混合动力电动汽车的基础上进行二次开发,将两组动力电池的模型以及充放电切换控制策略模块嵌入到顶层模型中,结合工况对整车进行仿真实验分析。实验结果表明,该动力电池仿真模型所建立的动力电池充放电切换控制策略可行,可以满足负载隔离式电动汽车在不同工况下对功率的需求。该研究具有一定的实际应用价值。In order to solve the problems of overcharging,over-discharging and over-temperature of the battery packs caused by the use of a single battery pack as the energy storage system in conventional electric vehicles,this paper proposes two types of battery alternately discharging in the course of driving based on the working characteristics of load-isolated electric vehicles.The simulation model of two types of power battery are built respectively.The control strategy of battery charging and discharging based on logic threshold method is established in Matlab/Simulink software.Combining with the basic parameters of power battery operation and the strategy of tandem hybrid electric vehicle,the two models of power battery and the charging and discharging switching control strategy module are embedded in the top model,and the simulation experiment is carried out to analyze the whole vehicle.The experimental results show that the control strategy of battery charging and discharging is feasible and can meet the demand of load-isolation electric vehicle under different working conditions.This research has certain practical application value.

关 键 词：电动汽车 负载隔离 动力电池 控制策略 充放电切换 仿真分析 

分 类 号：U469.72[机械工程—车辆工程]