【摘要】 为了提高电动汽车的续航里程,延长动力电池组的使用寿命,针对各单体电池间的不一致性问题,以buck-boost变换器法与传统多变压器法为基础,提出一种新型的分组式双向均衡方案,此方案在电池充电和放电阶段都能实现均衡。给出了以SOC为参量的控制策略,并在Matlab-Simulink环境下搭建均衡模型,进行仿真实验,结果验证了此方案的可行性。更多还原

【Abstract】 In order to improve the electric vehicle mileage and prolong the service life of the power battery,a new type of grouping bidirectional equalization scheme based on the methods of buck-boost converter and traditional multiple transformer was proposed to resolve the inconsistency among monomer batteries. The scheme can achieve balance in the battery charge and discharge stage. The control strategy using SOC as a parameter was presented. The equilibrium model was built under the environment of Matlab-Simulink. The simulation experiment was carried out.The result proves the feasibility of the scheme.更多还原