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Power quality comprehensive treatment device

A comprehensive management and power quality technology, applied in circuit devices, emergency protection circuit devices, substation/distribution device enclosures, etc., can solve the problems of inconvenient installation, maintenance and replacement, troublesome expansion, single function, etc., to reduce equipment weight, Good practicability and the effect of reducing pollution

Active Publication Date: 2019-03-29
恒一电气集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current APF, SVG, and SPC products have a single function, and only have a separate reactive power compensation, or filter harmonics, or adjust three-phase unbalanced functions, and the above functions cannot be selected in combination or at the same time. Some products have power quality problems above. Solved, but there are problems such as large volume, heavy weight, high power consumption, troublesome expansion, inconvenient installation, maintenance and replacement, etc.

Method used

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Examples

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Embodiment 1）

[0020] Figure 1 to Figure 4 A specific embodiment of the invention is shown in which figure 1 It is a structural schematic diagram of the present invention; figure 2 It is a structural schematic diagram of the front panel of the present invention; image 3 It is a schematic diagram of AC sampling and protection in the present invention; Figure 4 It is a schematic diagram of IGBT and fan control in the present invention.

[0021] See Figure 1 to Figure 4 , a device for comprehensive management of power quality, comprising a device lower case 1 and a device upper case (not shown, this is the structure of the prior art) covered on the device lower case, under the device Both the front panel 2 and the back panel 3 of the housing are fixed with a strip-shaped heat dissipation window 4, and a plug-in aviation plug 5 is fixed on the back panel of the lower housing of the device, and a 37-pin plug-in aviation plug is adopted, which is convenient Hot plugging; a display screen...

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Abstract

The invention discloses a power quality comprehensive treatment device. The device includes a device lower shell body and a device upper shell body covering the device lower shell body; strip-shaped heat dissipation windows are fixed on a front face plate and a back face plate of the device lower shell body; a plug-in type aviation plug is fixed on the back face plate of the device lower shell body; a display screen used for displaying an interactive interface and state is fixed on the front face plate of the device shell body; and a control unit, a driving unit, a switching power supply module and a power board inversion unit are fixed in the device lower shell body, and the control unit is connected to the power board inversion unit via the driving unit. The power quality comprehensive treatment device is reasonable in structure arrangement, is not only conducive to saving space and reducing the occupied volume, but also is conducive to ensuring safety and stability of usage, is conducive to reducing pollution in electric power lines, and is strong in applicability and good in practicability.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a comprehensive control device for power quality. Background technique [0002] Most of the electrical loads in the grid are inductive loads, such as motors. During operation, the power factor is low, the line current increases, and the power loss increases. In addition, there are electrical equipment that generate harmonics in the power grid, such as frequency converters, which transmit harmonics to the power grid, resulting in harmonic pollution and power quality problems; in other places, due to unbalanced load distribution, phase-to-phase current imbalance will occur. The neutral line current is large, resulting in low transformer efficiency. These are problems that need to be solved urgently. The current APF, SVG, and SPC products have a single function, and only have a separate reactive power compensation, or filter harmonics, or adjust three...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/56H02B1/26H02H3/10H02H3/20H02J3/00H02J3/01
CPCH02B1/26H02B1/565H02H3/10H02H3/20H02J3/00H02J3/01Y02E40/40
Inventor 林锡洪李文杰林佳昊郑伟
Owner 恒一电气集团有限公司
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