Journal
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
Volume 10, Issue 2, Pages 2435-2444Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JESTPE.2021.3131696
Keywords
Circuit faults; State of charge; Current measurement; Observers; Integrated circuit modeling; Fault diagnosis; Power electronics; Battery management system (BMS); current sensor fault diagnosis; lithium-ion battery (LIB); particle swarm optimization (PSO)
Categories
Funding
- National Natural Science Foundation of China [U1864202]
Ask authors/readers for more resources
This article proposes a novel residual statistics-based diagnostic method for current sensor fault diagnosis in lithium-ion batteries. The method utilizes only a small number of samples at the startup phase to accurately detect two typical sensor faults. Experimental validation shows that the method is highly robust and has a low false alarm rate.
Current sensor fault diagnostic is critical to the safety of lithium-ion batteries (LIBs) to prevent over-charging and over-discharging. Motivated by this, this article proposes a novel residual statistics-based diagnostic method to detect two typical types of sensor faults, leveraging only the 50 current-voltage samples at the startup phase of the LIB system. In particular, the load current is estimated by using particle swarm optimization (PSO)-based model matching with measurable initial system states. The estimation residuals are analyzed statistically with Monte-Carlo simulation, from which an empirical residual threshold is generated and used for accurate current sensor fault diagnostic. The residual evaluation process is well proved with high robustness to the measurement noises and modeling uncertainties. The proposed method is validated experimentally to be effective in current sensor fault diagnosis with low miss alarm rate (MAR) and false alarm rate (FAR).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available