Development of an Energy Regenerative Damper using Resonant Circuit

主动振动控制由于具有较高的阻尼性能，已逐渐被用于抑制振动。但它需要很高的能量耗散。相反，振动是一种能量，执行器是一种能量转换器。然后，利用振动能量并将其再生为电能的想法可以导致高成本节约和效率。一个音圈电机应用于振动系统，将能量再生到双电压充电电路中。能量再生用于执行器的高速运动。但该阻尼器存在死区，对系统产生较大的谐波干扰，且阻尼很低。然后在执行器和充电电路之间引入电谐振电路。期望能减少非线性效应，并对低振幅振动提供有效的阻尼力。为了设计谐振电路，导出了最优调谐条件。但所设计的谐振电路体积大，不实用。最后在执行器和充电电路之间引入PWM型升压斩波器。再生阻尼器在振动能量再生良好的情况下工作效果良好。

Active vibration control has been gradually used to suppress vibration because of its high damping capability. But it requires high energy dissipation. On the contrary, vibration is a kind of energy and the actuator is an energy converter. Then the idea of utilizing the vibrating energy and regenerating it to electric power can lead to high cost saving and efficiency. A voice-coil motor is applied to the vibrating system to regenerate energy into a double voltage charging circuit. The energy is regenerated for high speed motion of the actuator. However, the damper has a dead zone causing higher harmonic disturbance to the system and the damping is very low. Then an electric resonant circuit is introduced between the actuator and the charging circuit. It is expected to reduce the nonlinear effect and to give an efficient damping force to the low amplitude vibration. To designing the resonant circuit, an optimal tuning condition is derived. But the designed resonant circuit is big and not practical. Finally PWM type step-up chopper is introduced between the actuator and charging circuit. The regenerative damper works very good while the vibrating energy is well regenerated.