Research on Active Balancing Parameters of Power Battery Pack Based on Switched Capacitor
There are many parameters for balancing control of power battery packs based on switched capacitors,the relationship between the parameters is complicated,and the related research is less.A balance simulation model based on single switched ca-pacitors was built.Active balancing experiments were carried out under different capacitor capacitance、different pulse signal、dif-ferent duty ratio、different battery internal resistance and different balancing strategies.The simulation results show that the larger the capacitance,the better the equalization effect,but as the capacitance increases,the impact of changing the capaci-tance on the equalization effect gradually becomes smaller;as the pulse signal period increases,the equalization effect becomes better at first and then becomes worse,when the period is 1.8s,the equalization effect is the best;when different internal resis-tances and different equalization strategies are applied,the law of the influence of capacitance and period on the equalization ef-fect is still effective,but the larger the internal resistance,the greater the impact of the capacitance on the equalization effect,and the best period of different equalization strategy is different.
Battery BalancingBalance Control ParametersBalancing EffectPulse Signal PeriodCapacitance
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