CONCLUSION This paper proposes a fault diagnosis algorithm for parallel-connected battery cells, which includes one faulty cell with a significant degradation when compared to the other cells. The studied problem is challenging, since generally only one voltage sensor and one current sensor are used in one battery string.
Zhang et al. first pointed out that the resistance of parallel-connected battery cells can be used as the health indicator for fault diagnosis. However, cell-to-cell variations were not considered hence the resistance thresholds, which are important to fault diagnosis, cannot be accurately quantified.
Individual Cell Fault Detection for Parallel-Connected Battery Cells Based on the Statistical Model and Analysis Abstract— Fault diagnosis is extremely important to the safe operation of Lithium-ion batteries. To avoid severe safety issues (e.g., thermal runaway), initial faults should be timely detected and resolved.
To avoid severe safety issues (e.g., thermal runaway), initial faults should be timely detected and resolved. In this paper, we consider parallel-connected battery cells with only one voltage and one current sensor. The lack of independent current sensors makes it difficult to detect individual cell degradation.
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Multifault diagnosis is of great significance for the safe operation of lithium-ion battery (LIB) systems. A combined model-based and data-driven multifault diagnosis method …
The detection method of battery parameters in battery management system is simple and the accuracy is limited [[27], [28], [29]], but the accuracy of parameters is the direct …
The continuous occurrence of lithium-ion battery system fires in recent years has made battery system fault diagnosis a current research hotspot. For a series connected …
Abstract Reliable and timely detection of an internal short circuit (ISC) in lithium-ion batteries is important to ensure safe and eficient operation. This paper investigates ISC …
This article investigates the fault diagnosis scheme for parallel lithium-ion battery packs with main current sensor fault and battery internal resistance (BIR) fault. First, an …
The continuous occurrence of lithium-ion battery system fires in recent years has made battery system fault diagnosis a current …
In this paper, we consider parallel-connected battery cells with only one voltage and one current sensor. The lack of independent current sensors makes it difficult to detect …
Abstract—This paper investigates the fault diagnosis scheme for parallel lithium-ion battery packs with main current sensor fault and battery internal resistance (BIR) fault. First …
There could also be arcs or sparks during charging and discharging, damaging the battery terminals [3]. Detection of such faults based on increased sensed temperature will be …
Assure the battery room is clean,free of debris and with proper lighting. Assure that all facility safety equipment is available and functional. Measure and record the air temperature within …
Our model overcomes the limitations of state-of-the-art fault detection models, including deep learning ones. Moreover, it reduces the expected direct EV battery fault and …
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