基于压电陶瓷的轨道振动能量采集方法

Collecting Method of Track Vibration Energy Based on Piezoelectric Ceramic

提出一种轨道竖向振动能量采集的新方法。基于轨道竖向振动的激励模型,建立轨道竖向振动理论模型;基于压电陶瓷,建立轨道振动能量转换耦合模型。初步探讨了轨道振动能量采集对轨道安全性的影响,同时对轨道振动能量采集的规模和最佳负载进行了初步估算。结果表明,电能以短暂、爆发性的方式输出,需要匹配快速能量回收电路与储能元件。所提出的轨道振动能量采集方法为轨道竖向振动能量采集、回收和再利用提供了一种可能的途径。

A new method to recycle the vertical vibration energy of track is innovatively proposed, then a theoretical model of track vertical vibration is established based on the track vertical vibration of the incentive model, a track vi- bration energy conversion coupling model is established based on the piezoelectric ceramic. The influence of track vibration energy collecting over rail transit safety is prelim- inarily discussed, the optimum external load and the piezo- electric ceramic power-generating capacity are estimated. The results show that the output of electric power is mo- mentary and explosive, so quick energy recovery circuit and energy storage components are needed. This research ex- plores new ways of track vibration energy collecting and lays a theoretical basis for track vertical vibration energy recycling.