Abstract
This paper proposes a method for estimating the State of Charge (SOC) of lithium iron phosphate (LFP) batteries based on an experimental thermal model that considers internal battery temperatures. The proposed algorithm involves selecting a thermal model and suggesting methods for extracting parameters from the chosen model. Using the proposed thermal model, the algorithm compensates for temperature differences in cold and hot environments, thereby correcting the internal temperature to estimate SOC accurately. The effectiveness of the proposed algorithm is verified by estimating the SOC of electric vehicle LFP batteries and comparing the accuracy before and after correction.
| Translated title of the contribution | Experimental Thermal Model-Based SOC Estimation Algorithm for Lithium-Ion Phosphate Batteries Considering Internal Temperature |
|---|---|
| Original language | Korean |
| Pages (from-to) | 2289-2296 |
| Number of pages | 8 |
| Journal | Transactions of the Korean Institute of Electrical Engineers |
| Volume | 73 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2024 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Battery management system
- battery temperature
- LFP batteries
- State of charge
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