蓄电池容量均衡方法概述

摘要

蓄电池由于其储能时间长，价格低等特点在电动车、新能源发电等领域得到了广泛应用。但蓄电池单体电压、容量较小，为了满足增大蓄电池容量的要求，一般将蓄电池单体串联使用，但由于单体的个体差异，在长时间使用后会导致单体的容量各不相同，对整个电池组的效率产生严重的影响。因此对蓄电池组各单体的容量均衡就非常重要．是保证蓄电池长期、有效运行的关键技术。文中将对现有的各种蓄电池均衡技术进行介绍，并指出各种方法的优缺点。%Battery is used widely in EV and renewable energy generation because of its long-time storage and low price. However, the voltage and energy of a cell are very low. In order to increase storage energy, cells are usually used in series connection. For the difference among cells, state of charge will be different after a long time use, which could decrease the efficiency of battery pack. Therefore, the battery charge equalization is very important. A review on battery charge equalization is described, bringing forward the advantage and disadvantage of each method.