CAJ | 학술논문

针对电动车的锂离子电池组寿命短、缺乏稳定性的问题,提出一种在更换模式下的充电均衡方案。采用了一次智能充电方式和二次均衡技术相结合,在第一次均衡设计中采用了耗散式均衡法,把多余能量以热能的形式在电阻消耗掉;在二次均衡设计中采用了能量转移的方法,通过电容把高能量电池的多余能量转移到低能量的电池中。实验表明该均衡方式得到很好的电压一致性。
침대전동차적리리자전지조수명단、결핍은정성적문제,제출일충재경환모식하적충전균형방안。채용료일차지능충전방식화이차균형기술상결합,재제일차균형설계중채용료모산식균형법,파다여능량이열능적형식재전조소모도;재이차균형설계중채용료능량전이적방법,통과전용파고능량전지적다여능량전이도저능량적전지중。실험표명해균형방식득도흔호적전압일치성。
Aimming at the problem of short life and lack of stability for vehicle＇s Li-ion battery pack, this paper puts an equalization charging method of lithium battery on change of mode forward. The method combines a intelligence charging mode with the second equalization technology. It adopts a method of dissipation balance in first equalization design, the excess energy consumed in the resistance in the form of heat. In the second equalization design adopts energy transfer method, which divert the excess energy by capacitance to the battery of lower energy. The experiments show that the voltage of battery got a good consistency in this equalization method.