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Flexible DC converter station

A flexible DC and converter station technology, applied in power transmission AC network, substation/distribution device housing, substation/switchgear cooling/ventilation, etc. The layout is mixed and other problems, so as to achieve the effect of convenient operation and maintenance, improved reliability and safety, and clear partition.

Active Publication Date: 2014-07-30
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a flexible DC converter station for the problem that the electrical layout of the DC converter station is outdoors and the electrical layout is mixed, which causes inconvenience in operation and maintenance.

Method used

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Embodiment Construction

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...

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Abstract

A flexible DC converter station comprises an AC / DC power distribution device and an AC / DC power distribution device chamber used for arranging the AC / DC power distribution device. The AC / DC power distribution device chamber is formed by arranging a first chamber body and a second chamber body in a stacked mode. The AC / DC power distribution device comprises an AC GIS power distribution device unit, a coupling transformer unit, a starting loop and valve reactor unit, a converter valve unit and a DC field unit. The function division of the all-indoor flexible DC converter station is definite and reasonable, operation and maintenance are convenient, space is utilized to the maximum degree, the land utilization rate is increased, and land occupation is reduced. Because all devices of the converter station are arranged indoors, on the basis of meeting the requirements for safety and reliability, the influences on the electrical devices by the external environment are effectively reduced, the reliability and the safety of the converter station of the electrical devices are improved, the manufacturing difficulty of the electrical devices is lowered, and cost is cut down.

Description

technical field [0001] The invention relates to the technical field of flexible direct current transmission systems, in particular to a flexible direct current converter station. Background technique [0002] Flexible direct current transmission (VSC-HVDC) technology is a new type of direct current transmission technology based on voltage source converter (VSC), controllable turn-off device and pulse width modulation (PWM) technology. Compared with traditional DC transmission, it has technical advantages such as flexible and convenient control, improved system stability, increased system dynamic reactive power reserve, improved power quality, and saved construction land. It is suitable for grid-connected renewable energy, asynchronous interconnection, and urban grid power supply And many other aspects. [0003] The DC converter station is the most important part of the DC transmission technology field. Since the main electrical equipment of the DC converter station is quite...

Claims

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Application Information

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IPC IPC(8): H02J3/36H02B1/30H02B1/56
CPCY02E60/60
Inventor 李扶中周敏贺艳芝郭金川王宏斌陈冰冯晓东张劲松
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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