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Flexible direct current convertor station valve hall anti-misoperation door interlock system

A technology of door interlocking and converter stations, which is applied in the direction of DC network circuit devices, power transmission AC networks, electrical components, etc., can solve the problems of incomplete equipment operation status, personal safety, flexible DC system outage, and insufficient effective prevention of switching The operation and maintenance personnel of the flow station entered the valve hall by mistake, etc.

Active Publication Date: 2016-06-15
STATE GRID FUJIAN ELECTRIC POWER CO LTD +2
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  • Abstract
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AI Technical Summary

Problems solved by technology

The gate of the valve hall of the IGBT converter valve adopts this kind of ordinary microcomputer five-proof lock. Since it is based on the incomplete operation status of the equipment, it is not enough to effectively prevent the operation and maintenance personnel of the converter station from entering the valve hall by mistake. operation, which may lead to possible personal safety problems, and further cause serious consequences such as outage of the flexible DC system

Method used

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  • Flexible direct current convertor station valve hall anti-misoperation door interlock system

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Embodiment Construction

[0018] Best practice:

[0019] Refer to the attached figure 1 , a door interlock system for preventing misoperation of the valve hall of a flexible DC converter station, including the following components:

[0020] Converter station control and protection system, which controls and protects the entire converter station system, and provides electrical logic blocking contact BS for whether the valve hall door is allowed to be opened;

[0021] The door interlock device includes a first door interlock device and a second door interlock device. The first door interlock device includes a management key, a first door interlock and a first auxiliary door mechanically linked with the first door interlock. Contact Y1; the second door interlock device is a hall door interlock device, which includes a hall key, the second door interlock, the second auxiliary contact Y2 mechanically linked with the second door interlock, and the first auxiliary contact Y2. The operation button associated...

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Abstract

The invention relates to a flexible direct current convertor station door lock system, especially relates to a flexible direct current convertor station valve hall anti-misoperation door interlock system. Based on a real state of a convertor station master control system, only when the convertor station master control system confirms that the present flexible direct current system is in an off-stream state and devices in the valve hall are in an uncharged state, the door interlock system can be further started. In the meantime, taking an access state of a valve hall key as a judgment, whether the valve hall door is opened really reflects the state of the valve hall door, and a protection system is controlled by the convertor station to control whether operation is charged. The flexible direct current convertor station valve hall anti-misoperation door interlock system has advantages that the 100% real state of the valve hall door rather than a simulation state in a microcomputer background is provided, a reversed locking function is set in each step of operation, the operation must be performed according to a correct operation sequence of an electrical device, and an anti-misoperation purpose of the valve hall is realized through an electrical logic locking loop, so that the misjudgment and misoperation of operators can be really avoided, and the safety and reliability of the operation of a flexible direct current power transmission system is improved.

Description

technical field [0001] The invention relates to a door lock system of a flexible DC converter station, in particular to a door interlock system for preventing misoperation of a valve hall of a flexible DC converter station. Background technique [0002] Flexible DC transmission is a new type of DC transmission after AC transmission and traditional high-voltage DC transmission. It is currently the most controllable and adaptable transmission technology in the world. It provides an effective technology for upgrading the performance of smart grids. means. It is different from the traditional high-voltage direct current transmission technology in that it uses a fully-controlled semiconductor device IGBT converter valve for AC and DC conversion, which can control active power and reactive power, and has no special requirements for the AC system at both ends. [0003] In the valve hall of the flexible DC converter station, the core electrical equipment of the converter station, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/36H02J1/00
CPCH02J1/00H02J3/36Y02E60/60
Inventor 郑家松林国新陈文兴尹元陈晓捷林传伟魏志强黄皖生王素芳黄黎琴陈盼陈旭海李刚王鋆
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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