Abstract
A method of active vibration control using regenerated vibration energy, i.e., the self-powered active vibration control is proposed. In this system, vibration energy is regenerated by an electric generator that is called energy regenerative damper, and is stored in a condenser. An actuator realizes active vibration control using the energy stored in the condenser. A variable-value resistance is used to control output force of the actuator. Since the damping coefficient of the energy regenerative damper is uncertain when it regenerates vibration energy, it is required for the controller to be robust to the parameter uncertainty; H∞ control method is applied to the system. Through experiments, the self-powered active control system is shown to have stability robustness to the uncertainty of the damping coefficient of the energy regenerative damper and have better isolation performance than that of a semi-active and a passive control system.
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