增强型双中间电容压电能量回收电路的优化设计  

Optimal Design of Piezoelectric Energy Harvesting Circuit with Enhanced Double Intermediate Capacitors

作　　者：丁晓亮 沈辉[1] 曲鹏超 DING Xiao-liang;SHEN Hui;QU Peng-chao(School of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,青岛266071

出　　处：《青岛大学学报（自然科学版）》2021年第1期54-58,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。

摘　　要：为提高压电振动能量回收系统接口电路的回收功率,设计了一种增强型双中间电容能量回收(E-DICH)接口电路并优化了开关的控制电路和控制策略。建立了E-DICH的电路仿真模型,通过等效电路建模的分析方法推导了E-DICH的回收功率表达式;利用Multisim仿真软件对该电路进行建模与仿真得到E-DICH的回收功率;通过实验验证了仿真的正确性。研究结果表明,E-DICH的回收功率与负载无关,其最大回收功率约为SEH电路的6倍和SECE电路的2倍。In order to improve the harvested power of the interface circuit of piezoelectric vibration energy harvesting system,an enhanced double intermediate capacitor energy harvesting(E-DICH)interface circuit was designed,and the control circuit and control strategy of the switch were optimized.The circuit simulation model of E-DICH was established,and the expression of harvested power of E-DICH was deduced by the analysis method of equivalent circuit modelling.Multisim simulation software was used to model and simulate the circuit,and the harvested power of E-DICH was obtained.The simulation results show that the harvested power of E-DICH is independent of load,and the maximum harvested power is about 6 times of SEH circuit and 2 times of SECE circuit.

关 键 词：振动能量回收 压电效应 E-DICH 

分 类 号：TM619[电气工程—电力系统及自动化] TN384[电子电信—物理电子学]