Measurement of Internal Resistance of Large Capacity Lead Carbon Batteries Based on AC Injection Method
The internal resistance of battery is an important parameter to judge the health and discharge capacity of battery.At present,there are few related researches on the internal resistance detection of large-capacity lead-carbon battery,so this paper proposes an AC injection detection method for large-capacity lead-carbon battery.Firstly,the equivalent circuit model of lead-carbon battery is deduced and analyzed,and then the simulation model of the detection system is established by using Simulink software to verify the resistance detection process.The simulation results are consistent with the internal resistance of the tested lead-carbon battery,which shows that the detection system scheme is feasible.Finally,the new VIA high-performance battery testing system is used as the standard testing instrument for comparative testing and verification.which meets the requirements of practical application.This test method can be used for reference in the detection of internal resistance of large-capacity lead-carbon batteries.
high capacity lead carbon batteryimproved AC injection methodResistor-Capacitance(RC)circuitSimulink simulation
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