Research on the Method for Extracting Three-Dimensional Vibration Signals of Oil-Immersed Core Reactors Based on Visual Enhancement

The oil-immersed core reactor is widely used in power systems, and vibration, along with the internal mechanical defects it causes, is one of the key issues faced in equipment operation and maintenance. By analyzing the vibration signals of the reactor, it is possible to assess the equipment's condition and diagnose defects. Traditional methods of vibration measurement have certain limitations. Therefore, this paper proposes and validates a method for extracting three-dimensional vibration signals of oil-immersed core reactors based on visual enhancement. A vibration measurement platform for the reactor has been established. The effectiveness of the proposed method in extracting the vibration modes of reactors operating at 95%, 100%, and 105% of rated voltage has been investigated. The results show that the measured vibration modes have a structural similarity of 0.9139 with those obtained by sensors, and the vibration mode extraction results do not fluctuate with changes in operating voltage, verifying the reliability of this method for extracting vibration modes of oil-immersed core reactors.