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Novel intelligent dynamic hybrid reactive power compensation device

A hybrid reactive power compensation and intelligent dynamic technology, applied in reactive power adjustment/elimination/compensation, circuit devices, harmonic reduction devices, etc., can solve problems such as high cost, rising device cost, and price restrictions on power devices

Active Publication Date: 2015-03-25
JIANGSU FANGCHENG ELECTRIC SCI & TECHCO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of pure active large-capacity reactive power generator has the disadvantage of high cost due to the price limit of power devices. With the increase of compensation capacity, the cost of the device will rise in steps

Method used

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  • Novel intelligent dynamic hybrid reactive power compensation device
  • Novel intelligent dynamic hybrid reactive power compensation device
  • Novel intelligent dynamic hybrid reactive power compensation device

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Embodiment Construction

[0048] see Figure 1~Figure 5 , a new type of intelligent dynamic hybrid reactive power compensation device of the present invention, which includes a cabinet body 1, an SVG unit 2 and an SVC unit 3 are arranged on the cabinet body 1, and the SVG unit 2 is arranged above the SVC unit 3, and the The SVG unit 2 includes an SVG cabinet 2.3, and the front side of the SVG cabinet 2.3 is provided with a main circuit breaker 2.15, an isolation transformer 2.8, a contactor 2.16, a contactor 2.7, a pre-charging resistor 2.6, and a reactor in sequence from left to right 2.5, discharge resistor 2.17 and filter capacitor 2.4, the main circuit breaker 2.15 is located above the isolation transformer 2.8, the discharge resistor 2.17 is located above the filter capacitor 2.4, and the rear side of the SVG cabinet 2.3 is sequentially provided with a main controller from left to right board 2.14, sampling Hall 2.13, adapter board 2.12, IGBT module 2.11, absorbing capacitor 2.10 and laminated bus...

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Abstract

The invention relates to a novel intelligent dynamic hybrid reactive power compensation device. The novel intelligent dynamic hybrid reactive power compensation device comprises an SVG unit (2) and an SVC unit (3). A main circuit breaker (2.15), an isolation transformer (2.8), a first contactor (2.16), a second contactor (2.7), pre-charging resistors (2.6), reactors (2.5), discharging resistors (2.17) and filter capacitors (2.4) are arranged on the front side of the SVG unit (2). A main control panel (2.14), sampling Halls (2.13), adapter plates (2.12), IGBT modules (2.11), absorption capacitors (2.10) and a lamination bus bar (2.9) are arranged on the rear side of a SVG cabinet (2.3). The SVC unit (3) is composed of a fuse (3.1), a thyristor (3.2), an independent-compensation capacitor (3.3) and a joint-compensation capacitor (3.4). By means of the novel intelligent dynamic hybrid reactive power compensation device, the small-capacity SVG and the large-capacity SVC are combined and controlled to run in a coordinative mode, and the rapid characteristic of the SVG and the steady-state performance of the SVC are brought into full play.

Description

technical field [0001] The invention relates to a novel intelligent dynamic hybrid reactive compensation device, which belongs to the technical field of power electronics. Background technique [0002] All places where low-voltage transformers are installed and next to large-scale electrical equipment should be equipped with reactive power compensation devices, especially those industrial mines, enterprises, and residential areas with low power factors must be installed. Large-scale asynchronous motors, transformers, welding machines, punching machines, lathes, air compressors, presses, cranes, smelting, rolling steel, rolling aluminum, large switches, electric irrigation equipment, electric locomotives, etc. are especially needed. In addition to incandescent lighting in residential areas, air conditioners and refrigerators are also consumption objects that cannot be ignored for reactive power. The power consumption situation in rural areas is relatively bad. In most areas,...

Claims

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Application Information

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IPC IPC(8): H02J3/18H02J3/01
CPCH02B1/26H02J3/1864Y02E40/10Y02E40/40
Inventor 张建兴包虎平
Owner JIANGSU FANGCHENG ELECTRIC SCI & TECHCO
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