Power transmission line galloping information reconstruction method based on compressed sensing
A compressed sensing and transmission line technology, applied in the identification of patterns in signals, instruments, measurement devices, etc., can solve problems such as increased investment and equipment maintenance costs, difficulty in obtaining intuitive data, and increased gravitational load on transmission lines.
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[0032] Simulation Example 1: When the transverse wind load acts on the transmission line, the wire will produce an up and down acceleration motion, thereby being affected by the aerodynamic moment and twisting, and galloping will occur when the torsional frequency reaches a certain condition. When the transmission line gallops and reaches stability, the vibration waveforms in the horizontal direction and the vertical direction are approximately simple harmonics, and the vibration frequencies in the two directions are consistent, but the amplitude in the horizontal direction is small, and the vibration in the vertical direction is the main one. Therefore, only Considering the vibration in the vertical direction, when the galloping is stable, the amplitude in the vertical direction and the maximum amplitude A, the span L, the galloping half-wave number n (n=1,2,3,), the galloping position x on the wire, the galloping The relationship between frequency f and time t can be expresse...
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