摘要
研究了压电振动能量回收电路中串联电感同步开关电路,对开关的控制策略进行优化。首先建立机电耦合模型,通过等效电路建模分析法得到压电振动系统的电学模型;利用Multisim软件建立振动能量回收系统的仿真模型和开关控制电路仿真模型。以负载作为储能元件,分析了压电片受夹电容电压与负载电压的变化。与标准能量回收电路相比,其输出功率提高近4倍。
The series inductance synchronous switch circuit in piezoelectric vibration energy recovery circuit wasstudied,the switch control strategy was optimized.Firstly,an electromechanical coupling model was established and the electrical model of the piezoelectric vibration system was obtained by the method of equivalent circuit modeling analysis.Then,the simulation model of vibration energy recovery system and switch control circuit were established by Multisim.Taking load as energy storage element,the variation of clamping capacitance voltage and load voltage were analyzed.Compared with the standard energy recovery circuit,its output power is increased nearly 4 times.
作者
曲鹏超
沈辉
孙枫磊
QU Peng-chao;SHEN Hui;SUN Feng-lei(School of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China)
出处
《青岛大学学报（自然科学版）》
CAS
2020年第2期6-10,共5页
Journal of Qingdao University(Natural Science Edition)
基金
山东省自然科学基金(批准号:ZR2017MEE039)资助。
关键词
串联SSHI
振动能量回收
压电效应
serial SSHI
vibration energy recovery
piezoelectric effect
