摘要 - 递增能力分析(ICA)和不同的电压分析(DVA)通常需要电池降解监控的恒定当前条件,这限制了它们在现实情况下的适用性。本文提出了一种统一的方法,可以在一般充电当前概况下启用基于ICA/DVA的降解监测,这在文献中尚未解决。首先,提出了一种新颖的虚拟增量能力(IC)和不同电压(DV)的概念。第二,两个相关的卷积神经网络(CNN),称为U-NET和CONC-NET,是为了构建虚拟IC/DV曲线的构建,并估算了跨任何状态(SOC)范围内的一般充电概况的健康状况(SOH),以满足某些约束。最后,提出了两个称为移动U-NET和移动网络的CNN,分别替换了U-NET和Conv-NET以进行车载实现。它们会大大减少计算和内存需求,同时在虚拟IC/DV曲线构建和SOH估计中保留性能。在具有各种快速充电协议和SOC范围的电池模块的广泛实验数据集上进行了测试,拟议的U-NET和移动U-NET构造精确的虚拟IC/DV曲线可以提取有价值的降级功能。建议的Conv-NET和移动网络提供的模块级SOH估计值,根平方误差(RMSE)小于0.5%。关键字 - 增量容量分析;差分伏分析;非恒定电流充电;快速充电;卷积神经网络;健康状况估计
戴安·王(Dian Wang)。基于光伏能量的微电网,用于为电动汽车站充电:与智能电网通信的充电和放电管理策略。电力。Decologie deCompiègne大学,2021年。英语。nnt:2021 comp2584。tel-03292806
1。引言传统的电池充电方法通常会因效率,安全性和多功能性而困难。该项目使用半导体设备晶闸管介绍了一种新颖的方法,以精确调节各种电池的充电电流,包括在汽车,摩托车和太阳能电池板系统中常见的12V铅酸电池。这种创新技术可确保最佳效率,在传递所需功率的同时最大程度地减少浪费能量。晶闸管控制还通过精心调节充电过程,防止过度充电,过热和潜在的电池损坏来促进安全。此外,这种方法的灵活性允许针对各种电池类型和尺寸量身定制,使其适用于广泛的应用。自动功能(例如计时器和电压监视)通过在达到满容量时自动停止充电,从而进一步提高了安全性和便利性。尽管存在初始组件和设计成本,但由于优化的充电过程和延长电池寿命,长期成本效益是不可否认的。总体而言,基于晶闸管的充电是一种可靠,高效且安全的解决方案,用于在各种应用中为电池充电[1]。2。使用晶闸管实施可充电电池适配器的文献综述一直是许多已发表论文的主题。R. K. Aggarwal和V. K. Gupta的一篇论文名为“ Thyristor Controled电池充电器”,描述了晶闸管控制的电池充电器的设计和实现。此外,显示了电池充电器上进行的试验结果[2]。本文讨论了在电池充电器中使用晶圆器的好处,包括它们调节充电电流和防止过度充电的能力。此外,还提供了在电池充电器上进行的实验结果[1]。S. K. Pandey和A. K. Mishra撰写的“电动汽车的电池充电器”详细介绍了用于电动汽车的基于晶闸管的电池充电器。文章中讨论了为电动汽车创建电池充电器的困难,包括提供高充电电流并防止电池过度充电的要求。晶闸管,包括硅控制整流器(SCR),门关闭晶闸管(GTOS)和
使用D20多工具电池技术的紧凑,功能强大且轻巧的电锯。配备了许多功能,包括低回扣俄勒冈棒和链条,易于使用的无工具链张紧器,比平均跌倒手柄大,自动链制动器,自动链润滑和油位指示器窗口。所有这些功能都可以使电锯理想地适合于林业,农业和花园活动。此套件配备了两个D20 4AH电池和D20 4.0A快速充电器。
摘要:本文在存在以快速充电条件为特征的电池循环专题文件的情况下,基于高电流增量的功能提出了电池老化模型。尤其是,提出了增量容量图下的主要峰面积作为容量指标。分析了丰田研究所的数据集。电池的循环数据以恒定电流的各种单或双步快速电荷为特征,以达到电池充电状态的80%;剩余的充电过程由1C电荷执行。根据电池的不同,将线性或对数模型确定为最适合表示容量 - 峰面积关系的最佳方法。通过对电池组的拟合结果进行推断分析来评估所提出模型的概括能力。最后,我们通过采用交叉验证方法评估了模型的预测性能。
x 1:s =重盐损伤,d =正常x 2:j =无dc米,r =带有dc仪表x 3:j = j = chademo 125a,(仅适用于chademo连接器)x 4:j = j = chademo 125a,125a,9 = nacs 200a,u = ccs111200a a = ccs1 120a a = ccs a = ccs,根据条件进行更改的代码
3.1。Recommended Tools & Accessories....................................................................................................... 4 3.2.Size Wires...................................................................................................................................................... 4 3.3.计划安装站点............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 5 3.4。Check the Battery Charger....................................................................................................................... 6 3.5.检查辅助电池....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 6 3.7。Check the Alternator on Your Automobile............................................................................................. 8
Figure 1-1 Evolution of electromobility [1] .................................................................................... 3 Figure 1-2 Schematic diagram of a Li-ion battery and main reactions [2] .................................... 4 Figure 1-3 Schematic diagram of a PHEV pack manusfactured by A123 Sysems .......................... 6 Figure 2-1 Single particle model (on the right) based on沿X轴完全电化学模型的空间离散化(左侧)。每个电极只有一个粒子,我们可以将每个节点的值视为电极上的平均数量[22]。............ 13 Figure 2-2 Different types of battery models used in battery management systems (Single particle and Pseudo-two dimensional models from [24]) ........................................................................... 15 Figure 2-3 Concentration gradient through the sphere, representing the single particle model .16图2-4 G(S)及其近似H(S)的比较。........................................................ 16 Figure 2-5 Comparison of fractional transfer function and its approximation in a frequency domain limited to the range including the BMS sampling frequency (approx.70 rad.s -1)。........... 18 Figure 2-6 Block diagram implementation of the electrical fractional model .............................. 18 Figure 2-7 OCP curves of Anode (left) and Cathode (right) against the respective lithiation degree ............................................................................................................................................. 21 Figure 2-8 Validation results of applying extended Artemis drive cycle to the fractional 模型 。23图2-9电压模型和分数电池模型的绝对估计误差和订单7 ECM的各自的绝对估计误差。................................................................................................................................................ 48 Figure 4-6 SDI 28 Ah cell opening at BOL ................................................................................... 52 Figure 4-7 SDI 28 Ah cell opening at EOL ................................................................................... 52
Acronyms 6 List of Figures 7 List of Tables 8 Chapter 1: Introduction 9 1.1 Thesis motivation 10 1.2 Thesis objectives and contribution 12 1.3 Charging structure design 13 1.4 Thesis outline 17 Chapter 2: EV charging system and RES integration: An Overview 19 2.1 Introduction 20 2.2 EV charging framework and standards 21 2.3 Hybrid sources-based charging system architecture: Literature review 25 2.4 A comparison of charging systems architectures 35 2.5 Hierarchical Control for EVs Charging System 37 2.6 Conclusion 45 Chapter 3: EV charging system modelling and control 47 3.1 Introduction 48 3.2 PV system modelling and MPPT control 49 3.3 BSS /EV battery and their power conversion step 60 3.4 AC/DC interlinking converter for the EVs charging station 65 3.5 Conclusion 69 Chapter 4: Lithium-ion Battery modelling and SoC estimation 70 4.1 Introduction 72 4.2 Lithium-ion Battery modelling 72 4.3 SoC estimation method for lithium-ion battery 77 4.4 Simulation results and discussion 81 4.5 Conclusion 83 Chapter 5: Energy Management of proposed EVs charging model 84 5.1 Introduction 85 5.2 General operating modes of charging station 86 5.3 Rule- based Energy management system (REMS) algorithm 88 5.4 Results and discussion 96 5.5 A Comparison of the PV BSS grid-based REMS with网格收费103第6章:结论与讨论106参考112