Development of an Energy Regenerative Damper using Resonant Circuit

主动振动控制因其具有较高的减振能力而逐渐被应用于减振。但它需要很高的能量消耗。相反，振动是一种能量，执行器是能量转换器。那么，利用振动能量并将其再生为电能的想法可以带来高成本和高效率。在振动系统中应用音圈电机，将能量再生为倍压充电电路。能量被再生用于执行器的高速运动。然而，阻尼器有一个死区，对系统产生较高的谐波干扰，并且阻尼器的阻尼性很低。然后在执行器和充电电路之间引入电谐振电路。它有望减小非线性效应，并对低振幅振动提供有效的阻尼力。为了设计谐振电路，推导了最优调谐条件。但所设计的谐振电路体积大，不实用。最后在驱动器和充电电路之间引入了PWM型升压斩波电路。当振动能量被很好地再生时，蓄热式阻尼器工作得很好。

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.