發(fā)布時間：2018-07-03 05:02

  本文選題：純電動車 + 單體電池　； 參考：《太原理工大學》2017年碩士論文

【摘要】：隨著社會經濟的不斷發(fā)展與城市居住環(huán)境的惡化,純電動汽車作為在行駛過程中以電池組為唯一動力來源的無污染交通工具,得到了政府的高度重視與扶持。動力電池組作為電動汽車的核心組成部分,其性能與溫度穩(wěn)定性密切相關,溫度過高過低都會影響電動汽車的性能,溫度失控時甚至會引發(fā)電池內短路從而發(fā)生事故。本課題以某型號純電動汽車的電池為研究對象,以控制電池組溫度穩(wěn)定性為目標,對電池的溫度特性進行了研究。具體工作如下:(1)對純電動汽車、動力電池和電池管理系統(tǒng)的相關知識進行了文獻綜述,分析了純電動汽的發(fā)展優(yōu)勢及其所面臨的困難,并著重探究了動力電池目前的國內外研究現(xiàn)狀;(2)通過對單體電池的反應機理和生熱理論的研究,以電池基本模型為基礎,結合動力電池的基本性能,建立了單體電池的三維熱效應模型;(3)根據建立的單體電池數學模型推導出生熱速率公式,得到了與仿真相關的各熱物性參數及電池等效材料的各方向導熱系數。通過仿真計算得到了在不同工況下的電池生熱云圖;(4)搭建了單體電池的生熱試驗平臺,對單體電池進行了充放電試驗。通過試驗驗證了模型的準確性,并通過試驗數據分析了電池生熱變化的原因及誤差來源。(5)基于電池的單體模型,完成了電池組的理論建模和試驗仿真,并設計了試驗驗證平臺,為控制電動汽車電池組的溫度穩(wěn)定性提供了理論基礎和試驗參考。本文通過研究電池的生熱機理,以單體電池與電池組為研究對象,運用仿真計算和試驗驗證相結合的方法對電池的生熱情況進行了研究,為電動汽車電池組溫度場控制、試驗及電池箱優(yōu)化設計提供了理論和試驗基礎。
[Abstract]:With the development of social economy and the deterioration of urban living environment, pure electric vehicles (EVs), as a non-polluting vehicle with battery pack as the only power source in the driving process, have been highly valued and supported by the government. As the core component of electric vehicle, the performance of power battery pack is closely related to temperature stability. Too high and too low temperature will affect the performance of electric vehicle. In this paper, the temperature characteristics of the battery are studied with the aim of controlling the temperature stability of the battery pack, taking the battery of a certain type of pure electric vehicle as the research object. The specific work is as follows: (1) the related knowledge of pure electric vehicle, power battery and battery management system is reviewed, and the advantages of pure electric steam development and its difficulties are analyzed. The current research situation of power battery at home and abroad is emphasized. (2) through the research of reaction mechanism and heat generation theory of single cell, based on the basic model of battery, combined with the basic performance of power battery, (3) according to the established mathematical model of single cell, the formula of birth heat rate is derived, and the thermal physical parameters related to the simulation and the thermal conductivity of the equivalent material are obtained. The heat generation cloud diagram under different operating conditions was obtained by simulation. (4) the heat generation test platform of single cell was set up and the charge / discharge test of single cell was carried out. The accuracy of the model is verified by experiments, and the causes and error sources of heat generation of the battery are analyzed. (5) based on the single cell model, the theoretical modeling and experimental simulation of the battery pack are completed, and the test verification platform is designed. It provides a theoretical basis and experimental reference for controlling the temperature stability of electric vehicle battery pack. By studying the heat generation mechanism of the battery, taking the single cell and the battery pack as the object of study, the heat generation of the battery is studied by the method of simulation calculation and experimental verification, which is the control of the temperature field of the battery pack of the electric vehicle. The test and optimal design of the battery box provide the theoretical and experimental basis.
【學位授予單位】：太原理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U469.72

【參考文獻】

相關期刊論文 前10條

1 Meng Wang;Anh V.Le;Yang Shi;Daniel J.Noelle;Hyojung Yoon;Minghao Zhang;Y.Shirley Meng;Yu Qiao;;Effects of Angular Fillers on Thermal Runaway of Lithium-Ion Battery[J];Journal of Materials Science & Technology;2016年11期

2 陳小丹;岳明s，

本文編號：2092505