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DC field conductor structure of +/- 160 kV flexible DC converter station

A technology of flexible direct current and conductor structure, which is applied in the direction of direct current network circuit devices, busbar/line layout, electrical components, etc., and can solve the problems of polluted environment and high synthetic electric field intensity on the ground

Active Publication Date: 2014-06-18
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 DC field conductor structure of ±160kV flexible DC converter station for the problems of active power loss and radio interference during power transmission, high ground synthetic electric field intensity, and environmental pollution.

Method used

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  • DC field conductor structure of +/- 160 kV flexible DC converter station
  • DC field conductor structure of +/- 160 kV flexible DC converter station
  • DC field conductor structure of +/- 160 kV flexible DC converter station

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Embodiment Construction

[0019] 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.

[0020] 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

The invention provides a DC field conductor structure of a + / - 160 kV flexible DC converter station. The DC field conductor structure comprises at least one DC field conductor and electrical devices where the DC field conductors can be erected on. The top of each electrical device is provided with a fixing point for installation of the DC field conductor. The distance between each fixing point and the mounting surface of the corresponding electrical device ranges from 6.5 meters to 7.5 meters. In this way, the DC field conductor will not generate coronas or the generated coronas are small, the DC field conductor is not prone to malfunction and damage, and the reliability and stability of the flexible DC converter station are improved. In addition, on the premise of not increasing corona loss, the total electric field strength of the ground below the conductor, the ion current density of the ground below the conductor and limiting values of electromagnetic environment such as radio interference generated by the conductor can be met, the electromagnetic pollution is little, the design scheme of the electrical devices in a DC transmission project is optimized, and the construction cost of the electrical devices is saved.

Description

technical field [0001] The invention relates to a flexible DC transmission system, in particular to a DC field conductor structure of a ±160kV flexible DC 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 (PW meter) technology. Compared with traditional direct current 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 component in the field of DC transmission technology. The DC field conductor of the flexible DC converter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/20H02G5/00H02J1/00
Inventor 李扶中周敏贺艳芝岳云峰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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