Large-capacity SVG closed-type air cooling system

An air-cooled system and large-capacity technology, applied in the direction of cooling/ventilation/heating transformation, power electronics modification, etc., can solve the problems of low heat dissipation efficiency, SVG outage, low heat generation density, etc., achieve high heat dissipation efficiency and ensure reliability performance, the effect of low inlet air temperature

Pending Publication Date: 2017-12-05
STATE GRID HUNAN ELECTRIC POWER +3
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AI Technical Summary

Problems solved by technology

[0004] At present, large-capacity SVGs generally use water cooling to dissipate heat. The water cooling method has high heat dissipation efficiency, but requires a large number of water inlet and outlet pipe joints, and there is a large risk of water leakage. Once water leakage will cause equipment insulation failure, the reliability is low.
The air-cooling method has no risk of water leakage, but the existing air-cooling method is currently only suitable for small-capacity SVGs with low heat generation densi

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  • Large-capacity SVG closed-type air cooling system
  • Large-capacity SVG closed-type air cooling system
  • Large-capacity SVG closed-type air cooling system

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[0023] The present invention will be further described in detail below with reference to the drawings and specific embodiments of the specification.

[0024] Such as Figure 1 to Figure 3 As shown, an embodiment of the large-capacity SVG closed air cooling system of the present invention includes an SVG power cabinet group 1, a heat exchange air cabinet 2 and a refrigeration unit 3. The heat exchange air cabinet 2 is provided with a uniform wind resistance delivery The air duct 21 and the return air duct 22, the SVG power cabinet group 1 is arranged between the supply air duct 21 and the return air duct 22 and communicate with each other, the refrigeration unit 3 is connected to the heat exchange air cabinet 2, and the SVG power cabinet Group 1 includes multiple power cabinets 11 connected in parallel. Each power cabinet 11 is provided with a symmetrical air inlet 111 and an air outlet 112. Each air inlet 111 is connected to the air supply duct 21, and each air outlet 112 is conn...

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Abstract

The invention discloses a large-capacity SVG closed-type air-cooling system, which includes a SVG power cabinet group, a heat-exchanging air cabinet and a refrigeration unit. The heat-exchanging air cabinet is provided with an air supply duct and a return air duct with uniform wind resistance. The SVG power cabinet group is set between the air supply duct and the return air duct and communicates with each other. The refrigeration unit is connected to the heat exchange air cabinet. The SVG power cabinet group includes multiple power cabinets connected in parallel. Symmetrical air inlets and air outlets, each air inlet is connected with the air supply duct, and each air outlet is connected with the return air duct. The system has the advantages of high heat dissipation efficiency, strong adaptability and high reliability.

Description

technical field [0001] The invention mainly relates to the field of electrical engineering, in particular to a large-capacity SVG closed air cooling system. Background technique [0002] With the rapid development of new energy power generation and UHV transmission technology, the demand for large-capacity dynamic reactive power compensation equipment in the power grid is becoming increasingly urgent. Among all kinds of equipment capable of quickly providing dynamic reactive power compensation, Static Synchronous Generator (SVG) has attracted widespread attention because of its fast dynamic response and small grid-connected harmonics. [0003] During the operation of SVG, due to the certain conduction voltage drop of the semiconductor switching device itself, about 1% of the active power loss will be generated during the operation of the SVG. Only by cooling the heat dissipation system can the SVG be overheated and damaged. [0004] At present, large-capacity SVGs generall...

Claims

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Application Information

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IPC IPC(8): H05K7/20
CPCH05K7/20909
Inventor 陆佳政黄清军李波谭艳军朱思国朱远
Owner STATE GRID HUNAN ELECTRIC POWER
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