基于增量容量分析和高斯核功能的优化,对高容量离子电池的剩余使用寿命预测
Youming Tang1, Songfeng Zhong2,3, Ping Wang3
1School of Mechanical & Energy Engineering, Zhejiang University of Science & Technology, Hangzhou, 310023, China. tangym1981@126.com.
高容量离子电池的准确剩余使用寿命 (RUL) 预测得到了新的双高斯过程回归模型的改进. 这种方法通过使用健康指标-容量分析来更好地评估电池健康状况来提高可靠性.
科学领域:
- 电池技术 电池技术
- 数据科学数据科学数据科学
背景情况:
- 剩余使用寿命 (RUL) 预测对于离子 (Li-ion) 电池的运行至关重要.
- 高容量的离子电池由于复杂的化学成分,对RUL预测提出了挑战.
- 由于依赖先验知识,现有的方法往往缺乏准确性.
研究的目的:
- 为280Ah大容量离子电池开发一个准确的RUL预测模型.
- 为了解决当前RUL预测方法的局限性.
- 提高电池健康评估的可靠性.
主要方法:
- 开发了一个健康指标-容量 (HI-C) 双高斯过程回归 (GPR) 模型.
- 使用增量容量分析 (ICA) 作为模型的基础.
- 优化了GPR模型的内核功能.
主要成果:
- 在NASA电池数据集中,实现的平均绝对百分比误差<0.02和根平均平方误差<0.04.
- 证明了不到五个电池故障周期的绝对误差.
- 与单个模型相比,验证了高精度和可靠性.
结论:
- 该HI-C双GPR模型为高容量的离子电池提供了卓越的RUL预测准确性.
- 该模型克服了实时操作中无法测量的健康指标的问题.
- 这种方法增强了RUL预测在离子电池管理系统中的实际应用性.
更多相关视频
10:36Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
Published on: November 3, 2023
11:25Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
Published on: March 7, 2022
相关概念视频
Energy Stored in a Capacitor: Problem Solving
Capacitor-discharge ignition is a type of ignition system commonly found in small engines where the energy released from a capacitor ignites an induction coil that, in turn, fires the spark plug.
To calculate the energy stored in a capacitor of...
Batteries and Fuel Cells
Energy Stored in Capacitors
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
Energy Stored in a Capacitor
Spherical and Cylindrical Capacitor
Conventionally, considering the symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
Continuous Charge Distributions
The electric charge can also be subjected to an analogical...
