河北科技大学学报2018，Vol.39Issue(1)：9-16,8.DOI:10.7535/hbkd.2018yx01002
主动式压电俘能电路研究分析
Analysis of active piezoelectric energy harvester
摘要
Abstract
Most of the existing piezoelectric traps are designed for a narrow frequency range of vibration,but the surrounding environment has a very wide frequency range,and the frequency may also be subject to change,causing the problem of difficult to achieve energy capture or capture inefficiency.In order to solve problem,a new T-type piezoelectric cantilever is proposed as a capture energy structure in the paper.To begin with the aspects of structural design and circuit design,the static analysis, modal analysis and resonance analysis of the structure are carried out and the natural frequency and excitation frequency of the device are analyzed.The design and calculation of the power consumption and the loss of the components of the circuit are ana-lyzed by the simulation and verification of the active capture energy circuit,and the active and passive techniques are compared and analyzed,the simulation of the active capture circuit is verified by analyzing the power consumption of the circuit and the maximum power obtained by the active technology is 5 times of that of the passive technology.And then the voltage-controlled active boundary control method can be used for interface circuit design,taking the initiative to use each piezoelectric transduc-tion cycle triggered by the electrical boundary conditions to effectively increase the input piezoelectric pump energy,and then increase output power.The way of utilizing the active trapping of piezoelectric materials is innovated,which has a positive effect on the development of piezoelectric traps.关键词
传感器技术/压电效应/固有频率/激振力频率/俘能电路Key words
sensor technology/piezoelectric effect/natural frequency/exciting force frequency/energy harvesting circuit分类
信息技术与安全科学引用本文复制引用
崔宜梁,王海峰,李蒙,孙凯利,李春雨..主动式压电俘能电路研究分析[J].河北科技大学学报,2018,39(1):9-16,8.基金项目
国家自然科学基金(51405255) （51405255）
山东省科技发展计划(政策引导类项目)(2012YD04038) （政策引导类项目）
山东省高等学校科技计划项目(J12LN95) （J12LN95）
