基于PSSH电路的悬架系统馈能发电研究

Research on Suspension System Feeding Power Generation Based on PSSH Circuit

车辆行驶时因路面不平整引起车身振动的能量,可通过悬架系统的阻尼以热能形式耗散.为了提升车辆系统能源利用率,悬架振动能量回收技术越来越受到关注.提出了一种针对直线电机的振动能量回收电路——并联同步开关能量回收(parallel synchronous switch harvesting,PSSH)电路,完成了该电路在恒定激振位移下回收功率的理论分析和计算.对标准能量回收电路、并联同步开关能量回收电路进行仿真比较并进行实验验证.结果表明,并联同步开关能量回收电路的回收功率与负载的变化无关且始终保持在较高的水平,具有优越的性能.

When the vehicle is running,the energy of the body vibration caused by the uneven road surface is dissipated in the form of heat energy through the damping of the suspension system in the past.In order to improve the energy utilization rate of the vehicle system,the suspension vibration energy recovery technology has attracted more and more attention.This paper proposes a vibration energy recovery circuit for linear motors,a parallel synchronous switch harvesting(PSSH)circuit,and completes the theoretical analysis and calculation of the circuit’s recovery power under constant excitation displacement.The standard energy recovery circuit and the parallel synchronous switch energy recovery circuit are simulated and compared and verified by experiments.The results show that the recovered power of the parallel synchronous switching energy recovery circuit has nothing to do with the change of the load,that it always maintains a high level,and,that it has superior performance.