Magnetically controlled reactor vibration noise measurement and control method

Abstract

The invention discloses a magnetically controlled reactor vibration noise measurement and control method. According to the technical scheme, a vibration sensor is tightly attached to the outer surfaceof an oil tank of a magnetically controlled reactor and used for collecting vibration noise signals; an industrial personal computer processes acquired vibration noise signals by adopting a signal decomposition algorithm based on signal vibration attributes; and the method specifically comprises the following steps: constructing dictionaries with different oscillation attributes by adjusting quality factors, extracting harmonic components in the vibration noise signals, and analyzing and processing the extracted vibration noise signals to generate damping adjustment signals; and transmittingthe damping adjustment signal to a damping-adjustable shock absorber control unit to adjust the damping parameter of the damping-adjustable shock absorber, so that the damping of the damping-adjustable shock absorber is adjusted and controlled. The vibration detection and control method of the magnetically controlled reactor is established by utilizing signal decomposition based on signal oscillation attributes, so that vibration and noise reduction and safe operation of the magnetically controlled reactor are realized.

Description

technical field [0001] The invention belongs to the field of reactive power compensation in electric power systems, and relates to a magnetron reactor, in particular to a method for measuring and controlling vibration and noise of a magnetron reactor. Background technique [0002] Magnetically controlled reactor is a kind of reactive power compensation equipment widely used in high-voltage transmission system. It has excellent working characteristics. It can not only improve the power factor of the power grid and system stability, but also limit high-frequency voltage. In addition, compared with other reactive power compensation equipment, the magnetron reactor has many advantages such as low cost, high efficiency, and long life. Due to its working principle and the particularity of the 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 th...

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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