Abstract
A new model for a lead-acid battery pack is proposed for use in power simulations of electric vehicles. A linear approximation using a constant voltage drop has been used to model the charge-transfer resistance of the battery pack, and an exponential voltage-recovery equation has been used to model the transient capacitance effects following a period of discharge. The new model is easy to implement with simple calculations and easily acquired parameters, combining speed of implementation with accuracy. The new model was found to have a peak error of 3.1% in drive cycle tests, thus comparing favorably to existing models of similar complexity. An initial assessment of the model's suitability for use with a lithium-ion battery pack was also performed, finding a peak error of 5%.
| Original language | English |
|---|---|
| Pages (from-to) | 21-28 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Energy Conversion |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 2012 |
Keywords
- lead-acid batteries
- electric vehicles (EVs)
- modeling
- adviser
- lead-acid battery pack model
- power simulations
- batteries
- voltage measurement
- system-on-a-chip
- resistance
- mathematical model
- lead
- integrated circuit modeling
