介电型电活性聚合物能量收集方法研究  

Energy Harvesting of Dielectric Electroactive Polymer Transducer

作　　者：朱银龙[1] 王化明[2] 周宏平[1] 

机构地区：[1]南京林业大学机械电子工程学院,南京210037 [2]南京航空航天大学机电学院,南京210016

出　　处：《农业机械学报》2015年第9期362-367,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(51305209);江苏省自然科学基金资助项目(BK20130979;BK2011735);中国博士后科学基金资助项目(2013M541678);江苏省博士后科学基金资助项目(1302052C)

摘　　要：介电型电活性聚合物(DEAP)作为一种新型智能材料,与风力、水力相结合,可作为一种新的能量收集方法。研究DEAP能量收集的可行性,讨论了DEAP的发电机理和工作过程。根据换能器工作状态的形变过程,利用弹性大变形理论建立了DEAP换能器的数学模型,通过对模型的求解计算出换能器推程、回程的力-位移曲线。据此,得出DEAP换能单元工作过程输入的机械能、发电量和相应能量转换效率。提出了一种多换能器集成使用以提高系统发电效率的方法。理论分析和试验数据表明:初始电压和拉伸位移是影响发电量、能量转换效率的关键因素。随着多换能单元的应用,系统的总效率可提高到28%以上。同时,外界输入扭矩的数值波动越来越小。As a category of electroactive polymers, dielectric electroactive polymer （DEAP） has been referred to as ＂ artificial muscles＂ owning to their excellent overall performances including large deformation, high energy density and high speed of response. As a new smart material, dielectric electroactive polymer can be used as a new energy harvesting method to transform mechanical energy into electrical energy when being combined with wind power and water power. The energy harvesting mechanisms and working cycles of dielectric electroactive polymer generator were investigated. Based on the analysis of energy conversion cycle, circular energy conversion unit was implemented to conduct analysis and experiment. The mathematic model of cone dielectric electroactive polymer generator was developed. With the proposed model, the force-strokes of dielectric electroactive polymer generator in the stretching process and retracting process were determined. Analytical results indicate the generated energy and efficiency increase as the bias voltage and displacement increase in a certain range of bias

关 键 词：介电型电活性聚合物 换能器 发电特性 能量转换 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置] TB381[自动化与计算机技术—控制科学与工程]