Battery Internal Temperature Estimation Method through Double Extended Kalman Filtering Algorithm
XIONG Rui, LI Xing-gang
Abstract
摘要: 准确的内部温度估计对提高动力电池使用安全和可靠性极为重要,然而,受限于传感器和测试手段等因素,内部温度难以实时获取。通过融合Bernardi电池生热模型与热路传热模型,应用状态方程分析法实施了电池内外温度的表达,建立了温度的离散时间系统;利用双扩展卡尔曼滤波,建立电池内部温度和环境参数的实时估计模型,实现了电池内部温度在线估计。基于内置温度传感器的动力电池测试验证表明,该方法能在线估算锂离子动力电池的内部温度,估计误差小于1℃,为动力电池的实时安全监控提供了有力保障。
Topics & Concepts
Kalman filterEstimationMoving horizon estimationComputer scienceAlgorithmFast Kalman filterBattery (electricity)Extended Kalman filterEngineeringArtificial intelligenceSystems engineeringPhysicsPower (physics)Quantum mechanicsAdvanced Battery Technologies ResearchAdvanced Algorithms and ApplicationsSensor Technology and Measurement Systems