A Self-Powered Double U-Finger MME Resonator Capable of Wirelessly Capturing Abnormal Message in Smart Grid Networks.

ABSTRACT: The magneto-mechano-electric (MME) coupling principle plays an important role in synchronously harvesting magnetic energy and monitoring safe operation in the distribution grid and the Power Internet of Things (PIoT). In this study, an MME resonator is presented, containing two crossed U-fingers made of piezoelectric phase-elastic beams with different lengths and magnet masses, operating in symmetric, decoupling dual bending modes. One U-finger resonating at 50 Hz serves as energy harvester (EH), while the other resonating at 185 Hz acts as current or magnetic sensor, enabling the resonator to simultaneously and wirelessly capture 50 Hz stray magnetic field (H_{AC ,50 Hz}) energy and ground fault message of power lines by injecting an additional non-grid-frequency (185 H

SUBMITTER: Zheng X 

PROVIDER: S-EPMC12463033 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature