HEV锂离子串联电池组混合均衡策略研究  

Hybrid equalization of series HEV lithium-ion batteries

作　　者：吴铁洲[1,2] 陈学广[1] 张杰[2] 孙杨[2] 

机构地区：[1]华中科技大学控制科学与工程系,湖北武汉430074 [2]湖北工业大学电气与电子工程学院,湖北武汉430068

出　　处：《华中科技大学学报（自然科学版）》2011年第2期102-104,119,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家高科技研究发展计划资助项目(2007AA11A103)

摘　　要：针对HEV中电池组的不一致性这一影响电池组性能、降低电池组寿命的问题,研究了多绕组变压器磁性均衡模型以及多原边绕组DC-DC均衡模型的电路和工作原理,为了得到较好的均衡效果,提出了一种2级均衡系统,第1级均衡模块采用多绕组变压器磁性均衡电路,第2级均衡模块采用多原边绕组变压器均衡电路.实验结果表明2级均衡系统有效减小了HEV中锂离子电池组充放电的不均衡性,适用于HEV混合动力汽车.The imbalance of HEV （hybrid-electric vehicle） batteries is one of the major reasons for their performance and lifetime descending. Thus, circuit and principle of multi-winding transformer magnetic equalization model and multiple primary winding DC-DC （direct current） equalization model were studied. In order to get a better balance effect, a two stages balance system was proposed. The first stage is the multi-winding transformer magnetic equalization model, and the second stage is the multiple primary winding transformer equalization model. Experimental results show that two stages balance system can reduce the imbalance of HEV batteries effectively which is suitable for HEV vehicles.

关 键 词：蓄电池 混合动力汽车 锂离子电池组 多绕组变压器磁性均衡 多原边绕组变压器均衡 混合均衡 

分 类 号：TP17[自动化与计算机技术—控制理论与控制工程]