Method for fault diagnosis on basis of storage battery state of charge (SOC) and state of health (SOH)
A fault diagnosis and battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of battery SOC and SOH deviation, slow change of single battery, and inability to accurately reflect the working status and health status of the battery pack
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[0051] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0052] The state of charge SOC of the battery is used to reflect the remaining capacity of the battery, which is defined numerically as the ratio of the remaining capacity of the battery to the battery capacity, see formula (1), and the SOH of the battery is used to evaluate the state of health of the battery, mainly used to illustrate The degree of irreversible damage to the performance of the battery during use, see formula (2).
[0053] S OC = Q c Q I - - - ( 1 )
[0054] S OH = Q I Q ...
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