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Reactor vibration signal acquisition system and vibration signal characteristic frequency extraction method

A vibration signal and characteristic frequency technology, applied in the direction of instruments, electric devices, electromagnetic means, etc., can solve the problem that the vibration signal of the reactor cannot be accurately and quickly identified, and achieve the effect of reducing the amount of calculation and quickly extracting

Inactive Publication Date: 2019-08-27
STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH
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Problems solved by technology

However, the collection and analysis of vibration signals by experiments cannot accurately and quickly identify the vibration signals of the reactor in various states

Method used

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  • Reactor vibration signal acquisition system and vibration signal characteristic frequency extraction method
  • Reactor vibration signal acquisition system and vibration signal characteristic frequency extraction method
  • Reactor vibration signal acquisition system and vibration signal characteristic frequency extraction method

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Embodiment Construction

[0024] In order to better understand the essence of the present invention, the present invention will be further elaborated below in conjunction with specific embodiment and accompanying drawing

[0025] Such as figure 1 As shown, it is a schematic structural diagram of a reactor vibration signal acquisition system provided by an embodiment of the present invention, including a plurality of vibration sensors for collecting reactor vibration signals and a data acquisition card for transmitting the collected vibration signals to a host computer . Specifically, each vibration sensor can be bound or pasted around the reactor iron core, winding and fuel tank. The optional installation positions include: the middle of the upper yoke of the iron core, the outer side of the middle of the side yoke, the upper surface of the magnetic shield above the coil, and the upper surface of the side yoke. The center, the upper surface of the core cake. The vibration sensor can be a piezoelectri...

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Abstract

The invention relates to a reactor vibration signal acquisition system and a vibration signal characteristic frequency extraction method. The vibration signals of the reactor are collected through vibration sensors arranged on the periphery of an iron core, a winding and the oil tank of the reactor, and the vibration signal characteristic frequency is extracted through fast Fourier transform. Thereactor vibration signal acquisition system provided by the invention can quickly and accurately acquire the vibration signal of the reactor, and provides a reliable theoretical basis for later faultdiagnosis based on the vibration signal; and the reactor vibration signal characteristic frequency extraction method provided by the invention adopts a fast Fourier transform method, so that the calculation amount is reduced, and the reactor signal characteristic frequency can be extracted more quickly.

Description

technical field [0001] The invention relates to a reactor vibration signal acquisition system and a vibration signal characteristic frequency extraction method, belonging to the field of reactor signal analysis and processing. [0002] Background technique: [0003] High-voltage shunt reactors play the role of preventing power frequency voltage rise and reactive power compensation in the power grid, and are widely installed in substations. However, with the increasing capacity and volume of the reactor, its vibration problem becomes more prominent. In engineering practice, vibration signals are often collected through experiments, and vibration signals are analyzed and processed to find measures to reduce vibration. However, it is impossible to accurately and quickly identify the vibration signals of the reactor in various states by collecting and analyzing the vibration signals by means of experiments. Contents of the invention [0004] The invention provides a method fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/08
CPCG01H11/08
Inventor 戴锋朱超郝宝欣陈昊李义峰
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH
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