TR2015-058
Sequential Estimation of State of Charge and Equivalent Circuit Parameters for Lithium-ion Batteries
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- "Sequential Estimation of State of Charge and Equivalent Circuit Parameters for Lithium-Ion Batteries", American Control Conference (ACC), DOI: 10.1109/ACC.2015.7171106, July 2015, pp. 2494-2498.BibTeX TR2015-058 PDF
- @inproceedings{Wada2015jul,
- author = {Wada, T. and Takegami, T. and Wang, Y.},
- title = {Sequential Estimation of State of Charge and Equivalent Circuit Parameters for Lithium-Ion Batteries},
- booktitle = {American Control Conference (ACC)},
- year = 2015,
- pages = {2494--2498},
- month = jul,
- publisher = {IEEE},
- doi = {10.1109/ACC.2015.7171106},
- isbn = {978-1-4799-8685-9},
- url = {https://www.merl.com/publications/TR2015-058}
- }
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- "Sequential Estimation of State of Charge and Equivalent Circuit Parameters for Lithium-Ion Batteries", American Control Conference (ACC), DOI: 10.1109/ACC.2015.7171106, July 2015, pp. 2494-2498.
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MERL Contact:
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Research Areas:
Control, Dynamical Systems, Signal Processing, Electric Systems
Abstract:
We propose a method to estimate the state of charge (SoC) and the equivalent circuit parameters for lithiumion batteries. Model-based approaches for SoC estimation, such as Kalman filter, achieve better accuracy than Coulomb counting or open circuit voltage method, albeit requiring accurate model parameters of the battery. We analyze bias errors in the Kalman filter-based SoC estimation induced by errors of the battery model parameters, and develop a simultaneous recursive least squares filter to produce unbiased estimationof the battery parameters.
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MERL Contacts: Daniel N. Nikovski; Yebin Wang; Stefano Di Cairano; Arvind Raghunathan; Avishai WeissBrief- MERL researchers presented 10 papers at the American Controls Conference, in Chicago, USA. The ACC is one of the most important conferences on control systems in the world. Topics ranged from theoretical, including new algorithms for Model Predictive Control and Co-Design, to applications including spacecraft control and HVAC systems.