CN112968525B - Converter valve submodule on-site operation and maintenance system and method - Google Patents
Converter valve submodule on-site operation and maintenance system and method Download PDFInfo
- Publication number
- CN112968525B CN112968525B CN202110253941.6A CN202110253941A CN112968525B CN 112968525 B CN112968525 B CN 112968525B CN 202110253941 A CN202110253941 A CN 202110253941A CN 112968525 B CN112968525 B CN 112968525B
- Authority
- CN
- China
- Prior art keywords
- unit
- fault
- sub
- control unit
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 93
- 238000007781 pre-processing Methods 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 27
- 238000011084 recovery Methods 0.000 claims description 16
- 230000008439 repair process Effects 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
-
- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a converter valve submodule on-site operation and maintenance system and a method, which are characterized by comprising the following steps: the system comprises a plurality of sub-module units, a valve base control layer and a background display and control unit; each sub-module unit is connected with the valve base control layer through an optical fiber, and the valve base control layer carries out state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit; and the background display and control unit is electrically connected with the valve base control layer and is used for displaying related information sent by the valve base control layer, converting the related information into a control system under the power-off maintenance state of the converter valve and carrying out power-on function test on each sub-module unit. The invention can be widely applied to the field of flexible direct current transmission.
Description
Technical Field
The invention relates to a flexible direct current converter valve submodule field operation maintenance system and a flexible direct current converter valve submodule field operation maintenance method, which are suitable for a modular multilevel converter submodule in the field of flexible direct current transmission.
Background
The core equipment of the flexible direct current transmission technology is a converter valve, the sub-modules are basic power units of the modularized multi-level converter valve, various primary power devices and secondary control board cards are integrated, the converter valve is composed of dozens of elements, the intelligentization and integration degree is high, the number of the sub-modules contained in a single converter valve is large and generally reaches thousands of levels, and therefore the sub-modules are large in on-site operation and maintenance task amount and high in operation difficulty.
At present, a complete system is not formed for operation, maintenance and overhaul of the flexible-straight converter valve sub-module, and for different manufacturers, the operation, maintenance and overhaul of the converter valve have no general flow and system, so that the operation, maintenance and overhaul efficiency is seriously influenced. With the application of the flexible straight converter valve increasing, an efficient operation and maintenance system is necessary.
Disclosure of Invention
Aiming at the problems of untimely operation and maintenance of the sub-modules, multiple maintenance operation procedures and high execution difficulty in the prior art, the invention provides the on-site operation and maintenance system and method for the converter valve sub-modules, which can carry out intelligent operation and maintenance on the converter valve sub-modules and effectively improve the operation, maintenance and maintenance efficiency of the converter valve sub-modules.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect of the present invention, a converter valve submodule field operation and maintenance system is provided, which includes:
the system comprises a plurality of sub-module units, a valve base control layer and a background display and control unit;
each sub-module unit is connected with the valve base control layer through an optical fiber, and the valve base control layer carries out state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit;
the background display and control unit is electrically connected with the valve base control layer and used for displaying relevant information sent by the valve base control layer, converting the information into a control system under the power failure maintenance state of the converter valve and carrying out power-on function test on each sub-module unit.
Further, the valve base control layer comprises an online monitoring unit, a fault early warning unit, a fault preprocessing unit and a control unit;
the online monitoring unit is used for monitoring each sub-module unit in real time through optical fibers and respectively sending obtained monitoring data to the fault early warning unit and the fault preprocessing unit;
the fault early warning unit is used for carrying out data arrangement and on-line comparison on the received monitoring data, comparing the received monitoring data with a preset expert knowledge base to generate a fault early warning signal and transmitting the fault early warning signal to the background display and control unit;
the fault preprocessing unit is used for preprocessing the received monitoring data and the control information generated by the control unit and transmitting the processing result to the background display and control unit;
the control unit is used for collecting the key fault information of the sub-module unit, making corresponding judgment and processing according to the collected key fault information, and simultaneously sending monitoring and processing information to the background display and control unit.
Further, when the online monitoring unit monitors each sub-module unit in real time, the monitoring data includes the switching frequency, the version number, the operating temperature, and the capacitance value parameter of each sub-module unit.
Further, the control unit comprises a segment control unit and a core control unit;
the segment control unit monitors the key fault information of each sub-module unit in a corresponding range through optical fibers, controls each corresponding sub-module unit according to a control instruction issued by the core control unit and the key state information of the sub-module unit, and transmits a control result to the fault preprocessing unit 10 and the core control unit;
the core control unit receives the key fault information monitored by each sectional control unit, judges the state of the whole converter valve, immediately reacts when serious faults occur, informs the monitoring and processing information to the background display and control unit, adjusts the control instruction according to the return information of all the sectional control units, and then sends the control instruction to each sectional control unit.
Furthermore, the valve base control layer is integrated with a bearing cabinet, a power supply line, an air switch and a power converter of the online monitoring unit, the fault early warning unit, the fault preprocessing unit, the sectional control unit and the core control unit.
Furthermore, a sub-module test unit is further arranged in the valve base control layer and used for receiving the instruction from the background display and control unit under the power failure maintenance state of the converter valve, analyzing the instruction and issuing the analyzed instruction to the corresponding sub-module unit, so that the basic function test of the sub-module unit is realized.
Furthermore, the operation maintenance and overhaul system also comprises a submodule quick recovery unit, wherein the submodule quick recovery unit is used for quickly detecting the submodule unit with a common fault when the converter valve is subjected to power failure overhaul, and quickly positioning a fault point of the submodule unit to realize quick recovery of the submodule unit.
Furthermore, the sub-module quick recovery unit is connected with each sub-module unit through a quick recovery connecting line to temporarily supply energy, control and monitor the circuit for each sub-module unit.
The second aspect of the invention provides a converter valve submodule field operation and maintenance method, which comprises the following steps:
1) the method comprises the steps that a converter valve sub-module field operation maintenance system is arranged and comprises a plurality of sub-module units, a valve base control layer and a background display and control unit; the valve base control layer comprises an online monitoring unit, a fault early warning unit, a fault preprocessing unit and a control unit;
2) the online monitoring unit in the valve base control layer monitors each sub-module unit in real time, and performs state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit based on real-time monitoring data;
3) when the converter valve sub-modules need to be overhauled, the background display and control unit is matched with the valve base control layer, and power-on function test is carried out on each sub-module unit.
Further, in the step 2), the method for monitoring each sub-module unit in real time by the online monitoring unit in the valve base control layer, and performing state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit based on real-time monitoring data includes the following steps:
2.1) the online monitoring unit monitors each submodule unit in real time and sends the obtained online monitoring data to the fault early warning unit and the fault preprocessing unit;
2.2) each segment control unit monitors the key fault information of each sub-module unit in the corresponding range in real time through optical fibers and sends the obtained key fault information to a fault preprocessing unit and a core control unit;
2.3) the fault preprocessing unit preprocesses the online monitoring data and the key fault information sent by the online monitoring unit and the segment control unit and then sends the preprocessed online monitoring data and the key fault information to the background display and control unit;
2.4) the fault early warning unit carries out data arrangement and on-line comparison on the received monitoring data, compares the received monitoring data with a preset expert signal to generate a fault early warning signal, and transmits the fault early warning signal to the background display and control unit in an electric signal form;
2.5) after the core control unit receives the key fault information monitored by each sectional control unit, judging the integral state of the converter valve, reacting when serious fault occurs, informing the background display and control unit of the monitored and processed information, adjusting the control instruction by the core control unit according to the return information of all the sectional control units, and then sending the control instruction to each sectional control unit;
2.6) the background display and control unit displays the received various information.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. the invention provides a converter valve sub-module on-site operation and maintenance system which can carry out intelligent operation and maintenance on a converter valve sub-module, has the characteristics of high integration level, high intelligent degree and the like, can greatly improve the operation and maintenance working efficiency, and simultaneously ensures the accuracy and reliability. 2. The invention realizes real-time monitoring of each sub-module unit data by arranging the on-line monitoring unit, and comprises information of monitoring the switching frequency, the version number, the operating temperature, the capacitance value and the like of each sub-module unit. 3. The invention is provided with the fault early warning unit, can carry out latent fault early warning according to monitoring data, realizes early warning on single communication fault, version number fault, frequency overrun, high temperature rise, abnormal capacity value and the like, and does not destroy the running state of the sub-modules. 4. The flexible direct converter valve submodule field operation and maintenance system has a maintenance mode, when a converter valve is maintained, the maintenance mode is used for directly operating the submodule without damaging the wiring of the submodule, and the manual operation risk is not introduced during maintenance. 5. The flexible direct converter valve submodule field operation maintenance system provided by the invention is provided with a data expert knowledge base, fault types of submodules are stored in a traversing manner, comprehensive analysis is carried out after the data are received, and the data are compared according to a knowledge base format to realize fault type judgment. 6. The flexible straight converter valve submodule on-site operation maintenance system has a fault grading processing mechanism, and the system automatically synthesizes and grades fault categories, so that priority processing of serious faults and fine processing of general faults are realized, and the operation reliability of converter valve equipment is ensured to the greatest extent. 7. The flexible direct converter valve submodule field operation maintenance system is provided with a submodule quick recovery unit, further detection of general faults of the submodule is achieved, early warning information is synthesized, possible submodule fault elements are processed in advance, faults are prevented from being exposed in operation, and the availability of the converter valve is improved.
Drawings
FIG. 1 is a diagram of a converter valve sub-module field operation and maintenance system in an embodiment of the present invention;
FIG. 2 is a flow chart of a hierarchical overhaul of converter valve sub-modules in an embodiment of the invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example 1
As shown in fig. 1, the on-site operation, maintenance and repair system for a converter valve sub-module provided in this embodiment includes: a plurality of sub-module units 1, a valve base control layer 7 and a background display and control unit 6. Each sub-module unit 1 is connected with a valve base control layer 7 through optical fibers, and the valve base control layer 7 carries out state monitoring, fault early warning, fault preprocessing and control on each sub-module unit; the background display and control unit 6 is electrically connected with the valve base control layer 7 and is used for displaying relevant information sent by the valve base control layer 7, converting the information into a control system under the power failure maintenance state of the converter valve, and carrying out power-on function test on each sub-module unit 1 to assist the maintenance work of each sub-module unit 1.
Further, the valve base control layer 7 comprises an online monitoring unit 2, a fault early warning unit 4, a fault preprocessing unit 10 and a control unit. The online monitoring unit 2 is used for monitoring each sub-module unit 1 in real time through optical fibers and respectively sending obtained monitoring data to the fault early warning unit 4 and the fault preprocessing unit 10; the fault early warning unit 4 is used for carrying out data arrangement and on-line comparison on the received monitoring data, comparing the received monitoring data with a preset expert signal to generate a fault early warning signal, and transmitting the fault early warning signal to the background display and control unit 6 in an electric signal form; the fault preprocessing unit 10 is used for preprocessing the received real-time monitoring data and the key fault information sent by the control unit and transmitting the processing result to the background display and control unit 6 in the form of an electric signal; the control unit is used for collecting the key fault information of the sub-module unit 1, making corresponding judgment and processing based on the collected key fault information, and simultaneously sending the monitoring and processing information to the background display and control unit 6.
Further, when the online monitoring unit 2 monitors each sub-module unit 1 in real time, the monitoring data includes parameters of each sub-module unit 1, such as switching frequency, version number, operating temperature, capacitance value, and the like.
Further, the control unit includes a plurality of segment control units 3 and a core control unit 5. Each segment control unit 3 monitors key fault information (such as a communication state, a bypass state and a sub-module voltage) of each sub-module unit 1 in a corresponding range through optical fibers, controls each corresponding sub-module unit 1 according to a control instruction issued by a core control unit 5 and the key state information of the sub-module unit 1, processes a signal with a small delay requirement, and transmits a processing result to a fault preprocessing unit 10 and the core control unit 5; the core control unit 5 receives the key fault information monitored by each segment control unit 3, judges the state of the whole converter valve, immediately makes a response when a serious fault occurs (for example, the number of switching sub-modules is large, the core control unit simultaneously receives the information of a plurality of segment control units), can make system operation without the participation of operation and maintenance personnel, informs the monitored and processed information to the background display and control unit 6, and the core control unit 5 simultaneously adjusts the control instruction according to the return information of all the segment control units 3 and then sends the control instruction to the segment control units 3.
Further, the valve base control layer 7 integrates a load cabinet, a power supply line, an air switch, a power converter and the like of the online monitoring unit 2, the fault early warning unit 4, the fault preprocessing unit 10, the control unit and the like.
Further, a sub-module test unit 11 is further arranged in the valve base control layer 7, and in the state of power failure maintenance of the converter valve, the sub-module test unit 11 receives the instruction from the background display and control unit 6, analyzes the instruction and sends the instruction to the corresponding sub-module unit 1, so that the basic function test of the sub-module unit 1 can be realized without damaging the wiring of the sub-module unit 1.
Furthermore, the operation maintenance system further comprises a submodule fast recovery unit 8, the submodule fast recovery unit 8 is used for carrying out fast detection on the submodule unit 1 with a common fault according to fault information collected by the background display and control unit 6 when the converter valve is in power failure maintenance, the fault point of the submodule unit 1 can be located fast, and fast recovery of the submodule unit 1 is achieved.
Further, the sub-module quick recovery unit 8 is connected with each sub-module unit 1 through a quick recovery connecting line 9, and temporarily supplies power, controls and monitors lines for each sub-module unit 1.
Example 2
The embodiment provides a converter valve submodule on-site operation, maintenance and repair method, which comprises the following steps:
1) setting a converter valve submodule on-site operation and maintenance system, wherein the system comprises a plurality of submodule units, a valve base control layer and a background display and control unit; the valve base control layer comprises an online monitoring unit, a fault early warning unit, a fault preprocessing unit and a control unit, and the control unit comprises a segmented control unit and a core control unit.
2) And the online monitoring unit in the valve base control layer monitors each sub-module unit in real time, and performs state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit based on real-time monitoring data.
Specifically, the method comprises the following steps:
and 2.1) the online monitoring unit monitors each submodule unit in real time and sends the obtained online monitoring data to the fault early warning unit and the fault preprocessing unit.
2.2) each segment control unit monitors the key fault information of each sub-module unit in the corresponding range in real time through optical fibers and sends the obtained key fault information to the fault preprocessing unit 10 and the core control unit 5;
and 2.3) the fault preprocessing unit preprocesses the online monitoring data and the key fault information sent by the online monitoring unit and the segment control unit and then sends the preprocessed online monitoring data and the key fault information to the background display and control unit 6.
The method for preprocessing the online monitoring data and the key fault information sent by the online monitoring unit and the sectional control unit by the fault preprocessing unit comprises the following steps:
2.3.1) carrying out grading processing on the received online monitoring data and the key fault information, and dividing the received online monitoring data and the key fault information into two types of alarm information and quick processing information. As shown in fig. 2, the online monitoring data collected by the online monitoring unit is data with low real-time requirement, the collection time is long, the data size is large, the data is used for monitoring the data related to the long-term operation reliability of the submodule, the system operation cannot be influenced when the data are abnormal, the submodule can still be in a working state, but still can generate alarm information, and the maintenance personnel can conveniently process the data when the power failure occurs.
The key fault information data (namely the monitoring data of the interface unit) monitored by the segmented control unit is data content with high real-time requirement, and measures must be taken for the submodule immediately after an abnormality occurs, so that the normal operation of the converter valve is ensured not to be influenced, and the rapid processing information is generated.
2.3.2) carrying out data synthesis after carrying out OR operation on the alarm information and the quick processing information, namely analyzing whether the alarm information and the quick processing information have relevance or not, and sending a preprocessing result to a background display and control unit 6.
And 2.4) the fault early warning unit carries out data sorting and online comparison on the received monitoring data, compares the received monitoring data with a preset expert signal to generate a fault early warning signal, and transmits the fault early warning signal to the background display and control unit 6 in an electric signal form.
2.5) after the core control unit 5 receives the key fault information monitored by each segment control unit 3, the state of the whole converter valve is judged, the monitored and processed information is informed to the background display and control unit 6, and the core control unit 5 adjusts the control instruction according to the return information of all the segment control units 3 and then sends the control instruction to each segment control unit 3.
2.6) the background display and control unit 6 displays the received various information.
3) When the converter valve sub-modules need to be overhauled, the background display and control unit is matched with the valve base control layer, and power-on function test is carried out on each sub-module unit.
The invention divides the fault grade into two grades of serious fault and general fault, wherein, the processing scheme of the serious grade is to replace elements, the processing scheme of the general grade is to adopt a rapid fault positioning unit 8 to further position fault points, and determine the processing scheme according to the positioning result.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (6)
1. The utility model provides a field operation and maintenance system of converter valve submodule piece which characterized in that includes:
the system comprises a plurality of sub-module units, a valve base control layer and a background display and control unit;
each sub-module unit is connected with the valve base control layer through an optical fiber, and the valve base control layer carries out state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit;
the background display and control unit is electrically connected with the valve base control layer and used for displaying relevant information sent by the valve base control layer, converting the information into a control system under the power failure maintenance state of the converter valve and carrying out power-on function test on each sub-module unit;
the valve base control layer comprises an online monitoring unit, a fault early warning unit, a fault preprocessing unit and a control unit; the online monitoring unit is used for monitoring each sub-module unit in real time through optical fibers and respectively sending obtained monitoring data to the fault early warning unit and the fault preprocessing unit; the fault early warning unit is used for carrying out data arrangement and on-line comparison on the received monitoring data, comparing the received monitoring data with a preset expert knowledge base to generate a fault early warning signal and transmitting the fault early warning signal to the background display and control unit; the fault preprocessing unit is used for preprocessing the received monitoring data and the control information generated by the control unit and transmitting the processing result to the background display and control unit; the control unit is used for collecting the key fault information of the sub-module unit, making corresponding judgment and processing according to the collected key fault information, and simultaneously sending monitoring and processing information to the background display and control unit;
the control unit comprises a segmentation control unit and a core control unit; the segment control unit monitors the key fault information of each sub-module unit in a corresponding range through optical fibers, controls each corresponding sub-module unit according to a control instruction issued by the core control unit and the key state information of the sub-module unit, and transmits a control result to the fault preprocessing unit and the core control unit; the core control unit receives the key fault information monitored by each sectional control unit, judges the state of the whole converter valve, reacts when serious faults occur, informs the monitoring and processing information to the background display and control unit, adjusts control instructions according to the return information of all the sectional control units, and then sends the control instructions to each sectional control unit;
the sub-module testing unit is used for receiving the instruction from the background display and control unit under the power failure maintenance state of the converter valve, analyzing the instruction and issuing the analyzed instruction to the corresponding sub-module unit to realize the basic function test of the sub-module unit;
the operation maintenance and overhaul system further comprises a submodule quick recovery unit, wherein the submodule quick recovery unit is used for quickly detecting the submodule unit with a common fault when the converter valve is in power failure overhaul, and quickly positioning a fault point of the submodule unit to realize quick recovery of the submodule unit.
2. The converter valve submodule field operation and maintenance overhauling system of claim 1, wherein when the online monitoring unit monitors each submodule unit in real time, the monitoring data at least comprises one of switching frequency, version number, operating temperature and capacitance value parameter of each submodule unit.
3. The on-site operation and maintenance system for the converter valve submodule according to claim 1, wherein a bearing cabinet, a power supply line, an air switch and a power converter of the on-line monitoring unit, the fault early warning unit, the fault preprocessing unit, the sectional control unit and the core control unit are integrated in the valve base control layer.
4. The converter valve submodule field operation maintenance system of claim 1, wherein said submodule fast recovery unit is connected to each submodule unit through a fast recovery connection line for temporarily supplying power, control and monitoring lines to each submodule unit.
5. The converter valve sub-module on-site operation, maintenance and repair method based on the converter valve sub-module on-site operation, maintenance and repair system of claim 1 is characterized by comprising the following steps:
1) setting a converter valve sub-module on-site operation and maintenance system, wherein the converter valve sub-module on-site operation and maintenance system comprises a plurality of sub-module units, a valve base control layer and a background display and control unit; the valve base control layer comprises an online monitoring unit, a fault early warning unit, a fault preprocessing unit and a control unit;
2) the online monitoring unit in the valve base control layer monitors each sub-module unit in real time, and performs state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit based on real-time monitoring data;
3) when the converter valve sub-modules need to be overhauled, the background display and control unit is matched with the valve base control layer, and power-on function test is carried out on each sub-module unit.
6. The converter valve submodule on-site operation, maintenance and repair method of claim 5, wherein the method comprises the following steps: in the step 2), the method for monitoring each sub-module unit in real time by the online monitoring unit in the valve base control layer, and performing state monitoring, fault early warning, fault preprocessing and corresponding control on each sub-module unit based on real-time monitoring data comprises the following steps:
2.1) the online monitoring unit monitors each submodule unit in real time and sends the obtained online monitoring data to the fault early warning unit and the fault preprocessing unit;
2.2) each segment control unit monitors the key fault information of each sub-module unit in the corresponding range in real time through optical fibers and sends the obtained key fault information to a fault preprocessing unit and a core control unit;
2.3) the fault preprocessing unit preprocesses the online monitoring data and the key fault information sent by the online monitoring unit and the segment control unit and then sends the preprocessed online monitoring data and the key fault information to the background display and control unit;
2.4) the fault early warning unit carries out data arrangement and on-line comparison on the received monitoring data, compares the received monitoring data with a preset expert signal to generate a fault early warning signal, and transmits the fault early warning signal to the background display and control unit in an electric signal form;
2.5) after the core control unit receives the key fault information monitored by each sectional control unit, judging the integral state of the converter valve, reacting when serious fault occurs, informing the background display and control unit of the monitored and processed information, adjusting the control instruction by the core control unit according to the return information of all the sectional control units, and then sending the control instruction to each sectional control unit;
2.6) the background display and control unit displays the received various information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253941.6A CN112968525B (en) | 2021-03-09 | 2021-03-09 | Converter valve submodule on-site operation and maintenance system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253941.6A CN112968525B (en) | 2021-03-09 | 2021-03-09 | Converter valve submodule on-site operation and maintenance system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112968525A CN112968525A (en) | 2021-06-15 |
| CN112968525B true CN112968525B (en) | 2022-05-31 |
Family
ID=76277141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110253941.6A Active CN112968525B (en) | 2021-03-09 | 2021-03-09 | Converter valve submodule on-site operation and maintenance system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112968525B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114547539A (en) * | 2022-02-18 | 2022-05-27 | 国网冀北电力有限公司 | Maintenance decision method and device for flexible direct current converter valve |
| CN117451288B (en) * | 2023-10-16 | 2024-05-10 | 国网经济技术研究院有限公司 | Fault diagnosis method and device for offshore flexible straight platform valve cold main circulating pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081883A1 (en) * | 2013-12-05 | 2015-06-11 | 国家电网公司 | Valve monitor system applicable to high-capacity mmc flexible high-voltage direct-current transmission |
| CN109582004A (en) * | 2018-12-06 | 2019-04-05 | 中电普瑞电力工程有限公司 | Intelligent measurement platform |
| CN111459136A (en) * | 2020-04-03 | 2020-07-28 | 全球能源互联网研究院有限公司 | Closed-loop testing device and testing method for flexible direct-current valve base control equipment |
-
2021
- 2021-03-09 CN CN202110253941.6A patent/CN112968525B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081883A1 (en) * | 2013-12-05 | 2015-06-11 | 国家电网公司 | Valve monitor system applicable to high-capacity mmc flexible high-voltage direct-current transmission |
| CN109582004A (en) * | 2018-12-06 | 2019-04-05 | 中电普瑞电力工程有限公司 | Intelligent measurement platform |
| CN111459136A (en) * | 2020-04-03 | 2020-07-28 | 全球能源互联网研究院有限公司 | Closed-loop testing device and testing method for flexible direct-current valve base control equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112968525A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112968525B (en) | Converter valve submodule on-site operation and maintenance system and method | |
| CN107633670B (en) | Acquisition abnormity diagnosis method adopting acquisition operation and maintenance knowledge base | |
| CN116155956B (en) | Multiplexing communication method and system based on gradient decision tree model | |
| CN109242104A (en) | A kind of system for analyzing real-time discovering device failure exception using data | |
| CN111723646B (en) | Method and device for remotely assisting in maintaining equipment | |
| CN112434826A (en) | Intelligent analysis and early warning system for operation and maintenance faults of charging facilities of charging pile | |
| CN112561238A (en) | Pumped storage power station auxiliary equipment state health evaluation system and method | |
| CN113285358A (en) | Power distribution cabinet accident monitoring and alarming method and system | |
| CN114740343B (en) | Real-time detection system for circuit breaker | |
| CN116316613A (en) | Power equipment operation monitoring method, system, electronic equipment and storage medium | |
| CN117639251A (en) | Intelligent online monitoring system for high-voltage switch cabinet | |
| CN110350660B (en) | Online monitoring method and system for relay protection function pressing plate | |
| CN113471864A (en) | Transformer substation secondary equipment field maintenance device and method | |
| JP2018036970A (en) | Facility management system, facility management method, and program | |
| CN111222582B (en) | Method and system for extracting defect mode of relay protection device | |
| CN116147878A (en) | Large-scale low-temperature wind tunnel safety interlocking method, device and storage medium | |
| CN115237719A (en) | Early warning method and system for reliability of server power supply | |
| CN115587312A (en) | Fault point positioning method and system based on multi-dimensional big data analysis | |
| CN114896096A (en) | Data center equipment fault prediction system and method based on image recognition algorithm | |
| CN114837902A (en) | Health degree evaluation method, system, equipment and medium for wind turbine generator | |
| CN115129957A (en) | Distribution network holographic data visualization display system and method | |
| CN114094708A (en) | Power grid equipment association warning method and system | |
| CN113807690A (en) | Online evaluation and early warning method and system for operation state of regional power grid regulation and control system | |
| CN112104497A (en) | Terminal management method, device, system, server, terminal and storage medium | |
| CN116545961B (en) | Intelligent detection method and system for network switch clusters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |