PROBLEM TO BE SOLVED: To provide a state-of-charge calculation apparatus capable of improving accuracy for calculating the initial value of a state of charge at time of starting a power supply system.SOLUTION: A state-of-charge calculation apparatus 30 for calculating an SOC of a battery 10 ...
Calculation of state of charge offset using a closed integral method A state of charge control system and method uses a region of voltage linearity and a long-term average voltage to estimate an average battery state of charge for storage batteries and to eliminate errors due to hysteresis, drif...
A wind power prediction-based optimal SOC calculation module is designed to obtain an optimal range of SOC which makes BESS have enough capacity to smooth wind power fluctuation in a finite future period of time. It takes minimising over-charging and over-discharging time as optimisation objectives...
Inline state of health estimation of lithium-ion batteries using state of charge calculation - ScienceDirect A novel SOH estimation method based on a hybrid SOC estimator.Simultaneous inline SOC and SOH estimation for a battery pack.Accurate and reliable SOC and S... Saeed Sepasi a,Reza Ghorbani...
The Ampere-hour (Ah) integral method is the most commonly used method for electric charge accumulation at present. It is based on the calculation of electric quantity during charging and discharging. Q is the rated capacity of the battery, unit: Ah. Q0 is the initial charge of the battery...
State-of-charge (SOC) estimation is an important aspect for modern battery management systems. Extended Kalman filter (EKF) has been extensively used in battery SOC estimation. However, EKF cannot obtain accurate estimation results when the model parameters have strong uncertainty or/and the accurate...
of-charge estimation unit for estimating an open voltage value from charging and discharging current values and a terminal voltage value and, from the estimated open voltage value, estimating the state of charge by an open voltage estimation method; a first difference calculation unit for obtaining ...
The omission of higher-order terms in the process simplifies the calculation and also the higher-order loss errors is brought in, which will cause estimation accuracy decrease. To solve further the Experiments Because in the battery equivalent circuit model, some parameters such as capacity, ...
The invention relates to a method for the determination of the state of charge (soc) of a battery, in particular a motor vehicle starter battery, whereby the state of charge is calculated on the basis of a model calculation on entering a first operating region for the battery, in which a...
Method of determining the state of charge soc of a battery, in particular a starting battery of a motor vehicle; the state of charge being calculated, in a first operating range, on the basis of a model calculation in which a measured and a calculated battery voltage U, U are balanced, ...