CN109149613A - A kind of extra-high voltage direct-current transmission converter valve and its monitoring system - Google Patents
A kind of extra-high voltage direct-current transmission converter valve and its monitoring system Download PDFInfo
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- CN109149613A CN109149613A CN201710510543.1A CN201710510543A CN109149613A CN 109149613 A CN109149613 A CN 109149613A CN 201710510543 A CN201710510543 A CN 201710510543A CN 109149613 A CN109149613 A CN 109149613A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/36—Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H02J13/0096—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Alarm Systems (AREA)
Abstract
本发明涉及一种特高压直流输电换流阀及其监测系统，其中的监测系统包括在换流阀阀塔的各阀层上设定位置安装的监测子设备，监测子设备至少包括热成像摄像头。本发明通过将各个监测子设备设置在换流阀阀塔的对应阀层上，减小了监测子设备与阀塔之间的距离，各个监测子设备通过对各自对应一层换流阀阀塔内的器件运行状态进行监测，实现了对换流阀阀塔内部的在线监测，有效提高了监测系统的监测可靠性和自动化水平。
The invention relates to an ultra-high voltage direct current transmission converter valve and a monitoring system thereof, wherein the monitoring system includes monitoring sub-equipment installed at set positions on each valve layer of a converter valve valve tower, and the monitoring sub-equipment at least includes a thermal imaging camera . The present invention reduces the distance between the monitoring sub-devices and the valve tower by arranging each monitoring sub-device on the corresponding valve layer of the valve tower of the converter valve. The operation status of the devices inside the device is monitored, and the online monitoring of the inside of the converter valve tower is realized, which effectively improves the monitoring reliability and automation level of the monitoring system.
Description
Technical field
The present invention relates to a kind of extra-high voltage direct-current transmission converter valve and its monitoring systems, belong to power electronics field.
Background technique
Since National energy distribution is serious unbalanced with electric load distribution, extra-high voltage direct-current transmission, which has, to be suitble at a distance
It transmits electricity, the advantages that small, achievable Asynchronous Interconnection is lost, extra-high voltage direct-current transmission is developed rapidly in China, constitutes me
The important component of state's power grid main grid structure.Converter valve is one of core equipment of extra-high voltage direct-current transmission, and effect is to rectify
It stands convert alternating current at direct current, in Inverter Station DC power conversion at alternating current.Converter valve equipment once breaks down, no
It will result only in the stoppage in transit of DC transmission engineering, may result in the fire safety evaluating accident of converter valve or valve hall under serious conditions.
In order to improve converter valve equipment operation stability and reliability, there are two types of present monitoring means: one is the changes of current
Operation maintenance personnel of standing periodically integrally surveys converter valve valve tower using handheld infrared camera by the tour corridor at the top of valve hall
Temperature is maked an inspection tour；Another kind is that valve hall side walls installation monitoring camera carries out video surveillance, valve hall inner valve in two kinds of monitoring means
Tower 1, tour corridor 2 and monitoring 3 relative position schematic diagram of camera are as shown in Figure 1.As shown in Figure 1, due to being limited to converter valve
The safety factors such as the voltage environment of 500kV are up to about, monitoring device can only view valve tower far from valve tower in both measures
The a small amount of component of peripheral edge, can not view the operating status of a large amount of components inside valve tower, and monitoring reliability is poor.
Summary of the invention
The object of the present invention is to provide a kind of extra-high voltage direct-current transmission converter valve and its monitoring systems, for solving converter valve
The existing peripheral monitoring device of valve tower is unable to monitor this technical problem of the operating status of converter valve valve tower internal components.
In order to solve the above technical problems, the present invention provides a kind of monitoring system of extra-high voltage direct-current transmission converter valve, packet
The sub- equipment of monitoring that setting position is installed in each valve layer of converter valve valve tower is included, the sub- equipment of monitoring includes at least thermal imaging
Camera.
Further, which further includes monitoring host, and the sub- equipment of monitoring communicates to connect the monitoring host.
Further, the thermal imaging camera is infrared thermal imaging camera.
Further, the sub- equipment of monitoring further includes visible image capturing head.
Further, which further includes the power supply device of each sub- equipment of monitoring of connection.
Further, the power supply device is using each sub- equipment of monitoring of optical-fibre channel connection.
The present invention also provides a kind of extra-high voltage direct-current transmission converter valve, including converter valve valve tower and monitoring system, the prisons
Examining system includes the sub- equipment of monitoring that setting position is installed in each valve layer of converter valve valve tower, and the sub- equipment of monitoring is at least wrapped
Include thermal imaging camera.
Further, which further includes monitoring host, and the sub- equipment of monitoring communicates to connect the monitoring host.
Further, the thermal imaging camera is infrared thermal imaging camera.
Further, the sub- equipment of monitoring further includes visible image capturing head.
Further, which further includes the power supply device of each sub- equipment of monitoring of connection.
Further, the power supply device is using each sub- equipment of monitoring of optical-fibre channel connection.
The beneficial effects of the present invention are:
By the way that each sub- equipment of monitoring to be arranged in the correspondence valve layer of converter valve valve tower, the sub- equipment of monitoring and valve are reduced
The distance between tower, each sub- equipment of monitoring is by supervising the operative state in respective respective layer converter valve valve tower
It surveys, realizes the monitoring reliability for effectively increasing monitoring system to the on-line real time monitoring inside converter valve valve tower and automatic
Change horizontal.
Also, since converter valve is in high voltage and serious electromagnetic interference environment, and cannot after the sub- equipment of installation monitoring
The factors such as the electrical characteristic of valve tower are influenced, each sub- equipment design requirement of monitoring meets the conditions such as simple and compact and low-power consumption, no
Have an image-capable, the image data monitored is sent to monitoring host by each sub- equipment of monitoring, by monitoring host into
Row is uniformly processed, and effectively reduces the energy consumption of each sub- equipment of monitoring, enormously simplifies the hardware design for monitoring sub- equipment.
Detailed description of the invention
Fig. 1 is the schematic diagram of monitoring device relative position in valve hall in existing monitoring measure；
Fig. 2 is the structure chart of the monitoring system of extra-high voltage direct-current transmission converter valve of the present invention；
Fig. 3 is the flow chart that the faults of monitoring system of extra-high voltage direct-current transmission converter valve of the present invention diagnoses.
Specific embodiment
With reference to the accompanying drawing and specific embodiment detailed description of the preferred embodiments.
The embodiment of the monitoring system of extra-high voltage direct-current transmission converter valve:
As shown in Fig. 2, the monitoring system of extra-high voltage direct-current transmission converter valve includes monitoring host and in converter valve valve tower
Each valve layer on setting position installation the sub- equipment of monitoring, the sub- equipment of each monitoring connect with main-machine communication is monitored.
Wherein, monitoring sub- equipment includes two kinds of cameras of thermal imaging and visible light, two kinds of camera shootings in the sub- equipment of the monitoring
Head carries out panorama to lower layer's valve tower with shorter time interval timing and takes pictures.In the present embodiment, thermal imaging camera is infrared
Thermal imaging camera.
Since converter valve is in high voltage and serious electromagnetic interference environment, and cannot be influenced after the sub- equipment of the monitoring is installed
The factors such as the electrical characteristic of valve tower, the design requirement of the sub- equipment of the monitoring meet the conditions such as simple and compact and low-power consumption, do not have
Image-capable, completion carry out image data at united analysis by being sent to monitoring host equipment in fiber optic communication after taking pictures
Reason.
In addition, further including the power supply device of each sub- equipment of monitoring of energy supply connection in monitoring system, changed in order to avoid coming from
The high-voltage electrical apparatus interference of valve is flowed, which provides energy to sub- equipment is monitored by optical-fibre channel.
Monitoring host, which is received, monitors the infrared thermal imaging data and visible images number that sub- equipment sends over by each
According to, and two kinds of data are handled, and then judge whether each layer converter valve valve tower occurs temperature fault and structure failure,
If temperature anomaly failure or textural anomaly failure occur for converter valve valve tower, corresponding warning information is issued.Monitoring host may be used also
To control to adjust the frequency of the sub- equipment acquisition visible images data of each monitoring and acquire the frequency of infrared temperature data.
In addition, being stored with the valve tower figure under normal operating condition and various failure operation status conditions in monitoring host equipment
As data model, the excess temperature threshold of accurate location, major electrical components in the image data model comprising valve tower components' placement
The detailed datas such as value, main element Ageing Model.
The specific workflow of the monitoring system of above-mentioned extra-high voltage direct-current transmission converter valve as shown in figure 3, specifically include with
Lower step:
(1) infrared thermal imaging camera of each sub- equipment of monitoring carries out temperature to this layer of converter valve valve tower according to first frequency
Degree carries out picture number to this layer of converter valve valve tower according to second frequency according to acquisition, the visible image capturing head of each sub- equipment of monitoring
Monitoring host is sent to according to acquisition, and by collected temperature data and image data.
Wherein, in normal course of operation, first frequency is higher than second frequency.It is, monitoring infrared in sub- equipment
Camera is with higher frequency collection valve tower temperature data, to diagnose with the presence or absence of abnormal excess temperature in valve tower, for main monitoring
Measure；Visible image capturing head is with lower frequency collection valve tower image data, to monitor the knot in valve tower During Process of Long-term Operation
Structure is abnormal.
(2) monitoring host receives the infrared thermal imaging temperature data that each sub- equipment of monitoring sends over, and according to the temperature
Degree is it is judged that whether every layer of converter valve valve tower occurs temperature fault；If temperature fault occurs, monitoring host control, which increases, to be corresponded to
Monitor the frequency that sub- equipment carries out image data acquiring.
Specifically, monitoring host equipment is receiving after the infrared thermal imaging data for monitoring sub- equipment acquisition, to figure
It is calculated as data are filtered with temperature transition, by comparing the components' placement position in the valve tower iconic model saved,
The temperature value of major electrical components is parsed, diagnosis is then compared with preset overtemperature alarm data whether there is tender feeling
Condition.If it is determined that there is abnormal excess temperature, then temperature anomaly pre-warning signal is issued to operation maintenance personnel in time, while controlling the sub- equipment of monitoring
Visible images frequency acquisition is improved, the current real-time status of valve tower is remotely checked for operation maintenance personnel, accurately to formulate processing meaning
See.
(3) monitoring host receives the visible images data that each sub- equipment of monitoring sends over, and according to the picture number
It is judged that every layer of converter valve valve tower whether recurring structure abnormal failure；If generating mechanism abnormal failure, textural anomaly early warning is issued
Signal.
Specifically, monitoring host equipment is receiving after the visible images data for monitoring sub- equipment acquisition, to figure
After carrying out the pretreatment such as image enhancement, image denoising, image sharpening, Image Edge-Detection and segmentation, then carry out characteristics of image
Analysis and identification, obtain further details of valve tower structured data.
It is in vibrational state because will drive entire valve tower when the reactor in valve tower flows through a few kiloampere rated current, for a long time
Operation easily causes the problems such as element connection loosens.Due to the valve tower picture number being stored in monitoring host equipment under normal condition
According to model, monitoring sub- equipment installation position, valve tower shape and internal element layout is it is known that host equipment only need to be by current valve
Tower image data and the valve tower image data of the normal operating condition saved compare and analyze, and can be diagnosed to be current valve tower
Whether middle element loosens, major electrical components are with the presence or absence of structure changes such as displacements.Textural anomaly failure has occurred if being diagnosed to be,
Then issue textural anomaly pre-warning signal；If restoring the corresponding visible images for monitoring sub- equipment if non-recurring structure failure
Sample frequency.
In addition, being also added into artificial intelligence process mechanism in monitoring host equipment, accumulated by self-learning capability improper
Various characteristics under state, improve trouble diagnosibility.
The monitoring system of above-mentioned extra-high voltage direct-current transmission converter valve can realize the inside in-service monitoring to converter valve valve tower,
It effectively increases converter valve equipment and makes an inspection tour automatization level；And can find in time with early warning component initial failure, effectively mention
High equipment operational reliability.
The embodiment of extra-high voltage direct-current transmission converter valve:
Extra-high voltage direct-current transmission converter valve includes converter valve valve tower and monitoring system, due to monitoring system specific structure with
And function realizes that process specifically gives in the embodiment of the monitoring system of extra-high voltage direct-current transmission converter valve, herein no longer
It repeats.
Under the thinking that the present invention provides, to above-mentioned implementation by the way of being readily apparent that those skilled in the art
Technological means in example is converted, is replaced, is modified, and is played the role of and the basic phase of relevant art means in the present invention
Goal of the invention that is same, realizing is also essentially identical, and the technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, this
Kind technical solution is still fallen in protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510543.1A CN109149613A (en) | 2017-06-28 | 2017-06-28 | A kind of extra-high voltage direct-current transmission converter valve and its monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510543.1A CN109149613A (en) | 2017-06-28 | 2017-06-28 | A kind of extra-high voltage direct-current transmission converter valve and its monitoring system |
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|---|---|
| CN109149613A true CN109149613A (en) | 2019-01-04 |
Family
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| CN201710510543.1A Pending CN109149613A (en) | 2017-06-28 | 2017-06-28 | A kind of extra-high voltage direct-current transmission converter valve and its monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702799A (en) * | 2017-08-10 | 2018-02-16 | 许继集团有限公司 | A kind of converter valve valve tower |
| CN112304364A (en) * | 2020-09-24 | 2021-02-02 | 许继集团有限公司 | Panoramic inspection method for energy-consuming converter valve and monitoring device for energy-consuming converter valve |
| WO2021047223A1 (en) * | 2019-09-10 | 2021-03-18 | 许继集团有限公司 | High-voltage direct current power transmission converter valve tower provided with fire monitoring functions |
| CN112824841A (en) * | 2019-11-19 | 2021-05-21 | 许继集团有限公司 | Valve tower temperature monitoring system and method |
| CN113341284A (en) * | 2021-06-15 | 2021-09-03 | 国网上海市电力公司 | Operation detection device of extra-high voltage direct current transmission converter valve |
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| CN104022577A (en) * | 2014-06-21 | 2014-09-03 | 中国能源建设集团广东省电力设计研究院 | Flexible DC transmission system converter station control protection method and structure |
| CN104935897A (en) * | 2015-07-07 | 2015-09-23 | 国网上海市电力公司 | Infrared intelligent online monitoring system for direct-current convertor station valve hall |
| CN105092058A (en) * | 2015-05-12 | 2015-11-25 | 江苏宝亨新电气有限公司 | On-line temperature monitoring system for high tension switchgear, and monitoring method thereof |
| CN205229338U (en) * | 2015-12-01 | 2016-05-11 | 中国南方电网有限责任公司超高压输电公司广州局 | Take redundant silicon controlled rectifier change of current valve system emission of light detection loop |
| CN106017733A (en) * | 2016-08-04 | 2016-10-12 | 南京南瑞继保电气有限公司 | Temperature online monitoring device and method for modular multi-level converter valve |
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2017
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| CN104022577A (en) * | 2014-06-21 | 2014-09-03 | 中国能源建设集团广东省电力设计研究院 | Flexible DC transmission system converter station control protection method and structure |
| CN105092058A (en) * | 2015-05-12 | 2015-11-25 | 江苏宝亨新电气有限公司 | On-line temperature monitoring system for high tension switchgear, and monitoring method thereof |
| CN104935897A (en) * | 2015-07-07 | 2015-09-23 | 国网上海市电力公司 | Infrared intelligent online monitoring system for direct-current convertor station valve hall |
| CN205229338U (en) * | 2015-12-01 | 2016-05-11 | 中国南方电网有限责任公司超高压输电公司广州局 | Take redundant silicon controlled rectifier change of current valve system emission of light detection loop |
| CN106017733A (en) * | 2016-08-04 | 2016-10-12 | 南京南瑞继保电气有限公司 | Temperature online monitoring device and method for modular multi-level converter valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702799A (en) * | 2017-08-10 | 2018-02-16 | 许继集团有限公司 | A kind of converter valve valve tower |
| CN107702799B (en) * | 2017-08-10 | 2020-02-21 | 许继集团有限公司 | A converter valve tower with implanted imaging function |
| WO2021047223A1 (en) * | 2019-09-10 | 2021-03-18 | 许继集团有限公司 | High-voltage direct current power transmission converter valve tower provided with fire monitoring functions |
| CN112824841A (en) * | 2019-11-19 | 2021-05-21 | 许继集团有限公司 | Valve tower temperature monitoring system and method |
| CN112304364A (en) * | 2020-09-24 | 2021-02-02 | 许继集团有限公司 | Panoramic inspection method for energy-consuming converter valve and monitoring device for energy-consuming converter valve |
| CN113341284A (en) * | 2021-06-15 | 2021-09-03 | 国网上海市电力公司 | Operation detection device of extra-high voltage direct current transmission converter valve |
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Application publication date: 20190104 |