Lithium iron phosphate battery modeling and SOC estimating method in account of capacity loss
A lithium iron phosphate battery, battery technology, applied in the direction of measuring electricity, measuring electrical variables, computing, etc., can solve the problem of high cost of battery energy storage
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[0068] The following uses the drawings and embodiments to further illustrate the method for modeling and SOC estimation of the lithium iron phosphate battery of the present invention that takes into account the capacity loss.
[0069] The method for modeling and SOC state estimation of a lithium iron phosphate battery that takes into account battery capacity loss of the present invention includes the following contents:
[0070] 1) Mathematical model of the equivalent circuit of lithium iron phosphate battery
[0071] Since the energy storage of lithium iron phosphate batteries is an electrochemical reaction process, it is difficult to use conventional physical models to describe them in detail. The modeling of energy storage systems should be based on its application scenarios. Simple models will not reflect the characteristics of lithium iron phosphate batteries. An overly complex model may greatly increase the complexity of the solution and application of the control strategy. Now...
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