Semi-passive vibration control with the Synchronized Switching Damping on Inductor (SSDI) technique has attracted significant attention in recent years. However, the damping performance of the SSDI technique will be decreased by the lag in detection of switching time. In order to detect switching time without lag, the paper proposes a self-powered semi-passive vibration damping system based on self-sensing approach. In the proposed technique, the switching control signal is obtained by properly processing the voltage of one piezoelectric element which is also used for vibration damping at the same time. Compared with other self-powered SSDI techniques, the proposed approach can detect switching time without lag, while keeping simplicity of implementation with a small number of piezoelectric elements. The proposed technique is also experimentally implemented by a self-powered circuit in the paper. The theoretical analysis, the experimental validation and the drawback of the proposed technique are discussed in the paper.

近年来，采用电感器同步开关阻尼 (SSDI) 技术的半无源振动控制引起了广泛关注。然而，SSDI 技术的阻尼性能会因切换时间检测的滞后而降低。为了无滞后地检测开关时间，本文提出了一种基于自感知方法的自供电半被动减振系统。在所提出的技术中，通过适当处理一个同时也用于减振的压电元件的电压来获得切换控制信号。与其他自供电 SSDI 技术相比，所提出的方法可以无延迟地检测开关时间，同时使用少量压电元件保持实现的简单性。所提出的技术也在论文中通过自供电电路实验性地实现。本文讨论了所提出技术的理论分析、实验验证和缺点。