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Near-field control active noise reduction system for oil-immersed amorphous alloy transformer

A technology of amorphous alloy and noise reduction system, which is applied in the direction of transformer/inductor noise damping, etc., to achieve the effect of eliminating noise vibration, good noise reduction effect, and low hardware requirements

Active Publication Date: 2013-03-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an active noise reduction system suitable for oil-immersed amorphous alloy transformers with good noise reduction effect and low cost in view of the effectiveness and cost of noise elimination in amorphous alloy transformers.

Method used

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  • Near-field control active noise reduction system for oil-immersed amorphous alloy transformer
  • Near-field control active noise reduction system for oil-immersed amorphous alloy transformer

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, an active noise reduction system for an oil-immersed amorphous alloy transformer with near-field control includes an actuator 2, a vibration detector 3, and a controller 5, wherein the controller includes a power converter 6, a microprocessor 7. The driving circuit 8 and the shaping and amplifying circuit 9; the actuator 2 and the vibrator 3 are installed on the four sides of the oil-immersed amorphous alloy transformer oil tank 1 with large amplitude and large area on the front, rear, left, and right planes , the fuel tank 1 is equipped with a fuel tank radiator 4, the actuator 2 and the vibrating device 3 are arranged in pairs and installed adjacently, a single actuator 2 and the vibrating device 3 constitute a single-channel system, multiple actuators 2 and The vibrator 3 constitutes a multi-channel system;...

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Abstract

The invention discloses a near-field control active noise reduction system for an oil-immersed amorphous alloy transformer. The near-field control active noise reduction system comprises an actuator, a vibration measuring device and a controller, wherein the controller comprises a power converter, a microprocessor, a driving circuit and a shaping and amplifying circuit; and the actuator and the vibration measuring device are mounted at the side surface of an oil tank of the oil-immersed amorphous alloy transformer, the vibration measuring device is connected with the shaping and amplifying circuit, the shaping and amplifying circuit is connected with the input port of the microprocessor, the output port of the microprocessor is electrically connected with the driving circuit, the driving circuit is connected with the power converter, and the power converter is connected with the actuator. According to the near-field control active noise reduction system, the actuator and the vibration measuring device are arranged on the wall of the oil-immersed amorphous alloy transformer in pair and carry out near-field initiative vibration control on the amorphous transformer, and the purpose of noise reduction is realized by eliminating noise vibration.

Description

technical field [0001] The invention belongs to the technical field of active noise control, and in particular relates to an active noise reduction system of an oil-immersed amorphous alloy transformer. Background technique [0002] In my country's power system, line loss accounts for about 7% of the total power generation, and the loss of distribution transformers accounts for about 1 / 3. With the continuous deepening of my country's energy-saving and consumption-reducing policies, the development of energy-saving, low-noise, and intelligent distribution transformer products has been encouraged and supported by the state. Among them, the amorphous alloy distribution transformer is made of a new type of magnetic material-amorphous alloy. The transformer made of iron core is 70-80% lower than the no-load loss of the silicon steel sheet iron core transformer, and the no-load current is reduced by about 80%. It meets the national industrial policy and the requirements of power gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/33
Inventor 张建忠孙琛黄佳骏夏兵沈秀芬沈召源陈玉婷
Owner SOUTHEAST UNIV