混合动力工程机械镍氢蓄电池充放电控制策略研究  

Research on Charge and Discharge Control Strategy of MH-NI for Hybrid Construction Machinery

作　　者：贾月 周德俭[1] 冯志君[1] 

机构地区：[1]广西工学院机械工程学院,广西柳州545006

出　　处：《机械工程师》2013年第8期84-86,共3页Mechanical Engineer

基　　金：广西重点实验室主任课题(桂科能11-031-12-011);广西自然科学基金重点项目(2011GXNSFF018004)

摘　　要：针对混合动力工程机械充放电频繁,蓄电池必须能够快速吸收发动机多余功率的问题,提出了一种混合动力用镍氢电池充放电模糊控制方法。根据镍氢电池特性构建了蓄电池充放电的系统框图,设计了二维模糊控制器,以蓄电池额定电压与实测电压差ΔU以及电压差变化率ΔU/Δt为输入变量,输出变量为充电电压的变化量R,建立模糊控制规则表。仿真结果表明,该控制策略能够快速地吸收多余功率和释放电量提供动力,满足混合动力工程机械复杂工况的需要。In order to enalbe the battery to absorb the exeess power of engine,a fuzzy control strategy is proposed aimed at frequently of the battery charge.According to the charging properties of NI-MH battery,the charging and discharging system is built ,two-dimensional fuzzy controller is designed with the input variables are the voltage difference of rated voltage and measured vohage,the change rate of vohage,output variable is the change of the charging voltage R,the fuzzy control rules table is established.Simulation results show that the control strategy can quickly absorb the excess power and release power, and meet the needs of complex working conditions of the hybrid construction machinery.

关 键 词：混合动力 镍氢电池 模糊控制 充放电 

分 类 号：TM912[电气工程—电力电子与电力传动]