Lithium battery SOC estimation method and system based on thermodynamic model
The invention provides a lithium battery SOC estimation method and system based on a thermodynamic model, and the method comprises the following steps: 1, building a thermodynamic-electric quantity model of a first lithium battery when the lithium battery is in a discharge state; 2, when the lithium...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a lithium battery SOC estimation method and system based on a thermodynamic model, and the method comprises the following steps: 1, building a thermodynamic-electric quantity model of a first lithium battery when the lithium battery is in a discharge state; 2, when the lithium battery is in a charging state, establishing a thermodynamic-electric quantity model of a second lithium battery; 3, when the lithium battery is in an open-circuit standing state, establishing a thermodynamic-electric quantity model of a third lithium battery; and 4, estimating the SOC value of thelithium battery based on the thermodynamic-electric quantity model of the first lithium battery, the thermodynamic-electric quantity model of the second lithium battery and the thermodynamic-electricquantity model of the third lithium battery. According to the lithium battery SOC estimation method based on the thermodynamic models, the three thermodynamic models are made directly based on the lithium battery, the three s |
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