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Noise assessment and noise optimization method and device for electric reactor

A reactor and noise technology, applied in the field of reactor noise evaluation and optimization, can solve the problems of poor heat dissipation of the reactor, increase the production cost, increase the weight of the product, etc., and achieve a simple and effective evaluation method, reduce weight, and avoid noise reduction devices. Effect

Active Publication Date: 2019-03-15
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a reactor noise evaluation method, optimization method, and device to overcome the problem of reactor noise reduction in the prior art by adding a heavy noise reduction device, which easily leads to poor heat dissipation of the reactor, and also Increase product weight and increase production costs and other issues

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  • Noise assessment and noise optimization method and device for electric reactor
  • Noise assessment and noise optimization method and device for electric reactor
  • Noise assessment and noise optimization method and device for electric reactor

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Embodiment 1

[0036] An embodiment of the present invention provides a reactor noise evaluation method, such as figure 1 As shown, the reactor noise evaluation method includes:

[0037] Step S1: Obtain basic parameter information of each coil in the reactor to be tested. Specifically, the basic parameter information includes: the effective value of the harmonic current of each coil at different preset frequencies, the magnetic induction intensity, the number of turns of the coil, the length of the coil, the cross-sectional area of ​​the wire, and the like.

[0038] Step S2: Calculate the maximum displacement of each coil respectively according to the basic parameter information. Specifically, the mass points on each coil will be displaced under the influence of electromagnetic force, and the maximum displacement reflects the maximum amplitude of coil vibration.

[0039] Step S3: Calculate the effective value of the vibration velocity of each coil according to the maximum displacement and ...

Embodiment 2

[0076] An embodiment of the present invention provides a reactor noise optimization method, such as Figure 5 As shown, the reactor noise optimization method includes:

[0077] Step S5: Evaluate the noise level of the reactor to be optimized by using the reactor noise evaluation method in Embodiment 1. Each coil of the reactor to be optimized has parameters such as the number of turns of the coil and the cross-sectional area of ​​the wire.

[0078] Step S6: judging whether the noise level meets the preset noise requirement.

[0079] Step S7: When the noise level satisfies the preset noise requirement, determine the design parameters of the reactor to be optimized according to the current parameters of the number of coil turns and the cross-sectional area of ​​the wire.

[0080] By executing the above steps S5 to S7, the reactor noise optimization method provided by the embodiment of the present invention realizes the optimal design of reactor parameters, reduces the noise lev...

Embodiment 3

[0091] An embodiment of the present invention provides a reactor noise evaluation device, such as Figure 7 As shown, the reactor noise evaluation device includes:

[0092] The parameter information obtaining module 1 is used to obtain the basic parameter information of each coil in the reactor to be tested. For details, refer to the relevant description of step S1 in Embodiment 1.

[0093] The maximum displacement calculation module 2 is used to calculate the maximum displacement of each coil according to the basic parameter information. For details, refer to the relevant description of step S2 in Embodiment 1.

[0094] The vibration speed effective value calculation module 3 is used to calculate the vibration speed effective value of each coil according to the maximum displacement and basic parameter information. For details, refer to the relevant description of step S3 in Embodiment 1.

[0095] The noise level evaluation module 4 is used for evaluating the noise level o...

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Abstract

The invention provides a noise assessment and noise optimization method and device for an electric reactor. The noise assessment method for the electric reactor comprises the steps that basic parameter information of each coil in a to-be-measured electric reactor is acquired; according to the basic parameter information, the maximum displacement of each coil is calculated respectively; according to the maximum displacement and the basic parameter information, an effective value of the vibration velocity of each coil is calculated; according to the effective value of the vibration velocity of each coil, the noise level of the to-be-measured electric reactor is evaluated. The noise assessment and noise optimization method and device for the electric reactor have the advantages that the problem that the noise cannot be evaluated in the early design phase of the electric reactor, the assessment method is simple and effective, a basis is provided for performing noise optimization on the electric reactor subsequently, and the noise assessment and noise optimization method and device have guiding significance for noise reduction design of a smoothing reactor.

Description

technical field [0001] The invention relates to the technical field of reactor noise reduction, in particular to a reactor noise evaluation and optimization method and device. Background technique [0002] The dry-type smoothing reactor is connected in series between the converter valve and the DC line. It belongs to the equipment inside the converter station and is one of the most important equipment for high-voltage direct current transmission. It has the functions of limiting the sudden change of DC current, reducing the harmonic component, and smoothing the ripple of DC current. In addition to the DC part, the current flowing through each reactor also contains non-negligible high-order harmonic components, which become one of the main factors of noise sources in the converter station. Reactor noise has become a problem that cannot be ignored. [0003] From the equipment point of view, noise reduction usually adopts two noise reduction measures, that is, noise reduction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/26G01H17/00
CPCG01H17/00G01R29/26
Inventor 李婷婷巩少岩纪锋周建辉高冲蒋春霞赵金城
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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