车载传感器压电和电磁混合式自供电技术  

Vehicle Sensor Self-Powered Technology Research of Electromagnetic and Piezoelectric Hybrid Mode

作　　者：桑英军[1,2] 范媛媛[1] 吴尚光 李曼[1] 王业琴[1] SANG Ying-jun FAN Yuan-yuan WU Shang-guang LI Man WANG Ye-qin(Faculty of Automation, Huaiyin Institute of Technology, Jiangsu Huaiau 223003, China Electrical Engineering Scholl, Southeast University, Nanjing 210096, China)

机构地区：[1]淮阴工学院自动化学院,江苏淮安223003 [2]东南大学电气工程学院,南京210096

出　　处：《北京邮电大学学报》2016年第3期132-135,142,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金青年基金项目(51307070;51505173);江苏省教育厅项目(14KJB510006)

摘　　要：研究了一种用于车载传感器自供电的压电和电磁复合式能量收集技术,给出了系统的数学模型,分析了系统共振频率与系统结构参数的关系,设计了一套压电和电磁复合式能量收集装置.实验结果表明,数学模型基本反映了系统的输出特性,在共振频率为18 Hz,加速度为0.5 g时,复合式能量收集装置的最大负载功率为3.75 m W,相比于采用单一电磁技术时的最大负载功率3.2 m W增加了17%.The piezoelectric and electromagnetic energy harvesting technology for vehicle sensors selfpowered was studied. The mathematical models for the composite energy collection system was put forword,and the relationship about the resonance frequency of the system was analyzed with regard to the system configuration parameters. A piezoelectric and electromagnetic energy harvesting device was designed. Experiment shows it has good agreement with the analytical results in trend. The maximum of load power of the composite harvester achieves 3. 75 m W at the resonant frequency of 18 Hz with acceleration of 0. 5 g,and is increased by 17% compared with 3. 2 m W of the single electromagnetic technique.

关 键 词：环境振动 能量收集 压电能量转换 电磁能量转换 最优负载 

分 类 号：TN919[电子电信—通信与信息系统]