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基于单电芯的无线电池管理系统设计
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Abstract:
本文设计了一种基于单电芯的无线电池管理系统(WBMS)，通过无线射频技术实现电池数据传输。与传统有线BMS相比，WBMS在结构布置、布线简化、重量和体积减小、服务和维护成本降低等方面具有显著优势。本文提出的系统采用蓝牙单电芯AFE硬件，并增加了在线电化学阻抗谱(EIS)测量功能，验证了无线网络的稳定性、数据采样精度及在线EIS测量的可靠性。研究结果表明，该系统在功能上可以替代传统BMS，并为锂离子电池状态估计及故障预警提供了更多高维度特征数据。
This paper designs a wireless battery management system (WBMS) based on a single cell, utilizing wireless radio frequency technology for battery data transmission. Compared to traditional wired BMS, WBMS offers significant advantages in terms of structural layout, simplified wiring, reduced weight and volume, and lower service and maintenance costs. The proposed system employs Bluetooth single-cell AFE hardware and incorporates online electrochemical impedance spectroscopy (EIS) measurement functionality. The stability of the wireless network, data sampling accuracy, and reliability of online EIS measurements were validated. The research results indicate that this system can functionally replace traditional BMS and provide more high-dimensional feature data for lithium-ion battery state estimation and fault warning.
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