A method for measuring and controlling vibration and noise of a magnetron reactor

Abstract

The invention discloses a method for measuring and controlling the vibration noise of a magnetron reactor. The technical solution adopted in the present invention is: the vibration sensor is closely attached to the outer surface of the fuel tank of the magnetron reactor, and is used to collect vibration and noise signals; the industrial computer processes the collected vibration and noise signals using a signal decomposition algorithm based on the vibration attribute of the signal, specifically Including: building a dictionary with different oscillation attributes by adjusting the quality factor, extracting the harmonic components in the vibration noise signal, and analyzing and processing the extracted vibration noise signal to generate a damping adjustment signal; the damping adjustment signal is transmitted to the damping adjustable shock absorber The control unit adjusts the damping parameters of the adjustable damping shock absorber to realize the regulation and control of the damping of the adjustable damping shock absorber. The invention uses the signal decomposition based on the signal oscillation property to establish a vibration detection and control method of the magnetic control reactor, thereby realizing the vibration reduction and noise reduction and safe operation of the magnetic control reactor.

Description

technical field [0001] The invention belongs to the field of reactive power compensation of power systems, relates to a magnetron reactor, in particular to a method for measuring and controlling vibration and noise of the magnetron reactor. Background technique [0002] Magnetron reactor is a kind of reactive power compensation equipment widely used in high-voltage power transmission system. It has excellent working characteristics. It can not only improve the power factor and system stability of the grid, but also limit high-frequency voltage. In addition, compared with other reactive power compensation equipment, magnetron reactor has many advantages such as low cost, high efficiency, long life and so on. Due to its working principle and the particularity of its iron core structure, the noise problem of the magnetron reactor is becoming more and more serious, and the generated near-field sound pressure level reaches 75-80dB(A), which makes the noise in substations and othe...

AI Technical Summary

Problems solved by technology

Due to its working principle and the particularity of the iron core structure, the noise problem of the magnetron reactor is becoming more and more serious, and the near-field sound pressure level generated reaches 75-80dB(A), which makes the noise in the substation and other places exceed the standard, and affects the quality of life of the surrounding residents.

[0003] The noise of the magnetron reactor comes from the magnetostriction of the iron core, and the rigid connection between the iron core and the fuel tank is generally adopted, and the vibration is basically not attenuated after being transmitted to the fuel tank, resulting in a large vibration of the fuel tank wall

At present, the general noise reduction measures are to change the connection between the iron core and the fuel tank to a flexible connection or to use a sound insulation cover made of sound-absorbing materials through the installation of spring vibration isolators. The reduction effect of the equipment varies greatly, and the latter will affect the daily maintenance of the equipment, especially the fire protection problem in the event of a fire accident.

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