非接触式摩擦纳米发电机电荷补偿方法  

Charge Compensation Method of Non-Contact Triboelectric Nanogenerator

作　　者：卢锐 魏铠 孙文 张宇航 赵洪波 何高法[1] Lu Rui;Wei Kai;Sun Wen;Zhang Yuhang;Zhao Hongbo;He Gaofa(School of Mechanical and Power Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;Institute of Intelligent Manufacturing,Chongqing Vocational College of Light Industry,Chongqing 400065,China)

机构地区：[1]重庆科技学院机械与动力工程学院,重庆401331 [2]重庆轻工职业学院智能制造学院,重庆400065

出　　处：《微纳电子技术》2023年第4期574-581,共8页Micronanoelectronic Technology

基　　金：重庆市教育委员会科学技术研究重点项目(KJZD-K202101504);重庆市教育委员会科学技术研究项目(KJQN202206402);重庆科技学院硕士研究生创新计划项目(YKJCX2120305)。

摘　　要：摩擦纳米发电机(TENG)是一种很有前途的环境能量收集装置,由于其发电原理为不同材料间的相互接触摩擦,使得材料磨损严重,严重降低了设备的机械耐久性和电能输出稳定性。非接触式TENG是解决材料磨损最直接有效的方法,但非接触式TENG会因为电荷量衰减而导致发电效率降低。基于此,利用摩擦电极间接触力响应的滞后特性,结合凸轮装置的行程控制方法,通过电极间低-高-低接触压力的周期性转换,实现对非接触式TENG的电荷补偿。经电荷补偿后非接触式TENG的电压增加了约50 V,电荷量增加了约20 nC,在最佳负载电阻下功率密度增加了约6 mW/m^(2),有效地提高了非接触式TENG的输出性能。此外,该电荷补偿方法可以在无需改变任何激励条件下自动切换工作模式,为非接触式TENG有效地进行电荷补偿,可为摩擦纳米发电机的寿命提升研究提供参考。The triboelectric nanogenerator(TENG)is a promising device for harvesting energy from the environment.The power generation principle of the TENG is the contact friction between different materials,so the material wear is serious,which seriously reduces the mechanical durability and power output stability of the equipment.The non-contact TENG is the most direct and effective way to solve the problem of material wear,but the power generation efficiency of the non-contact TENG will decreases due to the decay of the amount of the charge.Based on this,by using the hysteresis characteristic of the contact force response between the friction electrodes,and combing with the stroke control method of the cam device,the charge compensation of the non-contact TENG was achieved through the cyclic transition of low-high-low contact pressure between the electrodes.After the charge compensation,the voltage of the non-contact TENG increases by about 50 V,the amount of the charge increases by about 20 nC,and the power density increases by about 6 mW/m^(2) at the optimum load resistance,effectively improving the output performance of the non-contact TENG.In addition,the charge compensation method can automatically switch the operating mode without changing any excitation conditions,providing effective charge compensation for the non-contact TENG,which can provide a reference for the study of the life enhancement of TENGs.

关 键 词：非接触式摩擦纳米发电机 凸轮装置 接触力响应滞后特性 电荷补偿 模式转换 

分 类 号：TM619[电气工程—电力系统及自动化]