CN112104088A - Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof - Google Patents
Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof Download PDFInfo
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- CN112104088A CN112104088A CN202011107666.9A CN202011107666A CN112104088A CN 112104088 A CN112104088 A CN 112104088A CN 202011107666 A CN202011107666 A CN 202011107666A CN 112104088 A CN112104088 A CN 112104088A
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- fixed value
- constant value
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- embedded cpu
- secondary circuit
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- 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
- H02J13/00028—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 involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/006—Calibration or setting of parameters
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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
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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
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides an intelligent substation protection and secondary circuit handheld patrol instrument and a working method thereof. The invention has low overall power consumption and is convenient and easy to carry, can intelligently identify the import of the fixed value list in various formats, and can automatically generate the check and check report of the consistency of the fixed value and the pressing plate.
Description
Technical Field
The invention relates to the technical field of routing inspection of secondary equipment such as intelligent substation relay protection and the like, in particular to an intelligent substation protection and secondary circuit handheld routing inspection instrument and a working method thereof.
Background
The checking work of the current fixed value and the pressure plate mainly depends on manual recording, analysis and comparison, and for a long time, the checking work mode of the fixed value pressure plate of the protection device is as follows: and 2 protection personnel read the state of the fixed value pressing plate by one person, the other person operates on the device, the fixed value pressing plate is stored after input is finished, then 2 persons exchange roles and carry out primary check, after no error occurs, the operator prints the fixed value list in the device, and 2 persons are in a group, and the fixed value list and the printed fixed value list are checked one by one to complete secondary check.
The working method requires much manpower and consumes a lot of time and energy of staff. For example, a 220kV line, at least 4 people in a group, can be completed in about 40 minutes; one 220kV three-turn change for about 90 minutes; a 500kV line can be completed in about 100 minutes; a500 kV three-turn transformer is about 200 minutes, and the higher the voltage level is, the longer the time is, because the more complicated the configuration is, the more setting items are.
For some abnormal signals found in the fixed value routing inspection, the problems can be timely found and inspected only by the fact that operating personnel have certain experience and professional ability. Therefore, the problems of low efficiency, large workload, poor timeliness, low accuracy and the like exist when the routing inspection work is carried out manually, phenomena of missing note, missing judgment and the like can occur, and hidden dangers are left for equipment operation. With the enlargement of the scale of the power grid, the data volume of the relay protection needing to be patrolled and examined in the operation is increased day by day, and the workload of the operating personnel is increased continuously.
Disclosure of Invention
The invention provides an intelligent substation protection and secondary circuit handheld patrol instrument and a working method thereof, aiming at the technical problems that at present, the patrol work carried out manually has low efficiency, large workload, poor timeliness, low accuracy and the like, and phenomena of omission of notes, omission of judgments and the like may occur, and hidden dangers are left for equipment operation.
In order to solve the above problems, the technical solution of the present invention is realized as follows:
the utility model provides an appearance is patrolled and examined to intelligent substation protection and secondary circuit hand-held type, includes operating panel and handle, handle and operating panel fixed connection, the last touch display screen that is provided with of operating panel, operating panel upper portion are provided with the network interface subassembly, and operating panel one side is provided with the data transmission interface subassembly, is provided with embedded CPU system in the operating panel, and embedded CPU system is connected with touch display screen, network interface subassembly, data transmission interface subassembly, storage component and FPGA chip respectively.
Preferably, the network interface component comprises an optical ethernet interface, the embedded CPU system is connected to the substation control layer switch through the MMS communication service module and the optical ethernet interface, and the substation control layer switch is connected to each protection device.
Preferably, the data transmission interface component comprises a first USB interface, a second USB interface and a switching value expansion interface, the first USB interface is connected with the embedded CPU system through a DOM interface, the first USB interface is used for importing an SCD file, a delivered EXCEL fixed value list, a PDF fixed value list, an XML fixed value list and a CSV/TXT fixed value list, and the second USB interface is used for exporting a fixed value template; the storage component comprises a TF card, an ND-Flash storage disk and a DDR storage disk.
Preferably, the upper part of the operation panel is provided with a GPS antenna, one side of the operation panel is provided with a switch-on/off button and an alarm, the GPS antenna and the alarm are both connected with the embedded CPU system, and the power supply is connected with the embedded CPU system through the switch-on/off button.
The working method of the intelligent substation protection and secondary circuit handheld patrol instrument comprises the following steps:
s1, importing an SCD file and a distributed EXCEL fixed value list, a PDF fixed value list, an XML fixed value list or a CSV/TXT fixed value list through a first USB interface, analyzing the SCD file by utilizing a DOM interface and transmitting the SCD file to an embedded CPU system;
s2, automatically reading all constant value items and constant value ranges in each protection device through an MMS communication service module;
s3, reading the fixed value items according to the step S2, automatically producing the fixed value template, exporting the fixed value template through a second USB interface or automatically uploading the fixed value template after being connected to master station management and control software;
and S4, automatically comparing the constant value list read in the steps S1 and S2 with the constant value items read by each protection device, and controlling an alarm to give an alarm by the embedded CPU system when the constant value list is inconsistent with the constant value items read by each protection device.
Preferably, the working method for automatically comparing the constant value list in step S4 with the constant value items read by each protection device includes the following steps:
a1, firstly, carrying out statistical classification on standardized constant value lists, identifying standardized constant value list formats by using a VTD (virtual terminal identification) analysis technology or an OCR (optical character recognition) mode recognition technology, extracting constant value information, forming a database file of a fixed format with device models as a classification, and carrying out mapping association with the constant values of corresponding IED devices to achieve a primary mapping permanent application effect and provide a basis for automatic one-key comparison;
a2, reading the fixed value on line, setting the fixed value as a standard fixed value after manually confirming that the fixed value is correct for the first time, and solidifying the fixed value into a database, wherein the fixed values read on line subsequently are compared with the fixed values read on line;
a3, automatically comparing the constant value database file read on line with the constant value single database file, when the files are not consistent, the embedded CPU system controls the alarm to give an alarm.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the SCD file and the fixed value list are led in from the outside, the MMS communication service module of the IEC61850 communication protocol automatically reads the fixed value items in each protection device to automatically compare with the led fixed value list for fixed value, an alarm is given out when the fixed value items are inconsistent, the template can be automatically generated after the fixed value items are read, the fixed value items can be led out through the USB port or automatically uploaded after being connected to the master station management and control software, the routing inspection efficiency is high, the overall power consumption is low, the carrying is convenient, the intelligent identification is carried out on the leading-in of the fixed value lists in various formats, the problems of low efficiency, large workload, poor timeliness, low accuracy and the like in the conventional routing inspection work carried out manually are solved, the phenomena of missing records, missing judgments and the like can occur, and the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a side view of fig. 1.
Fig. 4 is a schematic block diagram of the present invention.
In the figure, 1 is an operation panel, 2 is a touch display screen, 3 is an optical ethernet port, 4 is a GPS antenna, 5 is a switching value expansion interface, 6 is an alarm, 7 is a first USB interface, 8 is a second USB interface, and 9 is a power on/off button.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1: as shown in fig. 1, the intelligent substation protection and secondary circuit handheld patrol instrument comprises an operation panel 1 and a handle, wherein the handle is fixedly connected with the operation panel 1, and a patrol instrument embedded LINUX operation system is used for realizing debugging, upgrading and reliable and stable operation of software based on multithreading technology, and the embedded software adopts the LINUX operation system so as to provide stable and reliable multitask and good expansibility support for application software. The embedded software adopts a modularized and layered design idea, various applications are induced and designed according to the relation of data streams, independent processes are adopted to complete the design as much as possible, and data/information is exchanged among the processes through a 'soft bus' technology so as to improve the stability, reliability and expandability of the device software. The database aims to adopt embedded MySQL or SqlLite to standardize various data management.
As shown in fig. 4, a touch display screen 2 is embedded in the operation panel 1, a network interface component is arranged on the upper portion of the operation panel 1, a data transmission interface component is arranged on one side of the operation panel 1, and an embedded CPU system is arranged in the operation panel 1 and is respectively connected with the touch display screen 2, the network interface component, the data transmission interface component, the storage component and the FPGA chip.
The network interface component comprises an Ethernet interface 3, the embedded CPU system is connected with a substation control layer switch of the transformer substation through an MMS communication service module and the Ethernet interface 1, secondary data of the IED equipment of the intelligent transformer substation is acquired on line through an IEC61850-MMS protocol, and the substation control layer switch is respectively connected with each protection device.
As shown in fig. 2 and fig. 3, the data transmission interface component includes a first USB interface 7, a second USB interface 8, and a switching value extension interface 5, the first USB interface 7 is connected to the embedded CPU system through a DOM interface, the full name of DOM is Document Object Model, i.e. Document Object Model, and W3C organizes a way of recommending XML processing. In an application, a DOM-based XML parser converts an XML document into a set of object models, commonly referred to as a DOM tree, and the application performs operations on XML document data by operating on the object models. Through the DOM interface, an application can access any part of data in the XML document at any time, so this mechanism using the DOM interface is also called a random access mechanism; the storage component comprises a TF card, an ND-Flash storage disk and a DDR storage disk.
The upper part of the operation panel 1 is provided with a GPS antenna 4, one side of the operation panel 1 is provided with a switch-on/off button 9 and an alarm 6, the GPS antenna 4 and the alarm 6 are both connected with the embedded CPU system, and the power supply is connected with the embedded CPU system through the switch-on/off button 9.
Example 2: the working method of the intelligent substation protection and secondary circuit handheld patrol instrument comprises the following steps:
s1, importing an SCD file and a distributed EXCEL fixed value list, a PDF fixed value list, an XML fixed value list or a CSV/TXT fixed value list through a first USB interface 7, analyzing the SCD file by utilizing a DOM interface and transmitting the SCD file to the embedded CPU system;
s2, automatically reading all constant value items and constant value ranges in each protection device through an MMS communication service module;
s3, reading the fixed value items according to the step S2, automatically producing the fixed value template, exporting the fixed value template through a second USB interface 8 or automatically uploading the fixed value template after being connected to master station management and control software;
s4, automatically comparing the constant value list read in the steps S1 and S2 with the constant value items read by each protection device to obtain a constant value, and controlling an alarm to give an alarm by the embedded CPU system when the constant value list is inconsistent with the constant value items read by each protection device; the working method for automatically comparing the constant value list with the constant value items read by the protection devices comprises the following steps:
a1, firstly, carrying out statistical classification on standardized constant value lists, identifying standardized constant value list formats by using a VTD (virtual terminal identification) analysis technology or an OCR (optical character recognition) mode recognition technology, extracting constant value information, forming a database file of a fixed format with device models as a classification, and carrying out mapping association with the constant values of corresponding IED devices to achieve a primary mapping permanent application effect and provide a basis for automatic one-key comparison;
a2, reading the fixed value on line, setting the fixed value as a standard fixed value after manually confirming that the fixed value is correct for the first time, and solidifying the fixed value into a database, wherein the fixed values read on line subsequently are compared with the fixed values read on line;
a3, automatically comparing the constant value database file read on line with the constant value single database file, when the files are not consistent, the embedded CPU system controls the alarm to give an alarm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides an appearance is patrolled and examined to intelligent substation protection and secondary circuit hand-held type, includes operating panel (1) and handle, handle and operating panel (1) fixed connection, its characterized in that, be provided with touch display screen (2) on operating panel (1), operating panel (1) upper portion is provided with the network interface subassembly, and operating panel (1) one side is provided with the data transmission interface subassembly, is provided with embedded CPU system in operating panel (1), and the embedded CPU system is connected with touch display screen (2), network interface subassembly, data transmission interface subassembly, storage component and FPGA chip respectively.
2. The intelligent substation protection and secondary circuit handheld patrol instrument according to claim 1, wherein the network interface component comprises an optical ethernet port (3), the embedded CPU system is connected with a substation control layer switch of the substation through the MMS communication service module and the optical ethernet port (1), and the substation control layer switch of the substation is respectively connected with each protection device.
3. The intelligent substation protection and secondary circuit handheld patrol instrument according to claim 1, wherein the data transmission interface component comprises a first USB interface (7), a second USB interface (8) and a switching value expansion interface (5), wherein the first USB interface (7) is connected with the embedded CPU system through a DOM interface; the storage component comprises a TF card, an ND-Flash storage disk and a DDR storage disk.
4. The intelligent substation protection and secondary circuit handheld patrol instrument according to any one of claims 1-3, wherein a GPS antenna (4) is arranged on the upper portion of the operation panel (1), a power on/off button (9) and an alarm (6) are arranged on one side of the operation panel (1), the GPS antenna (4) and the alarm (6) are both connected with the embedded CPU system, and a power supply is connected with the embedded CPU system through the power on/off button (9).
5. The working method of the intelligent substation protection and secondary circuit handheld patrol instrument according to claim 4, characterized by comprising the following steps:
s1, importing an SCD file and a distributed EXCEL fixed value sheet, a PDF fixed value sheet, an XML fixed value sheet or a CSV/TXT fixed value sheet through a first USB interface (7), analyzing the SCD file by utilizing a DOM interface and transmitting the SCD file to the embedded CPU system;
s2, automatically reading all constant value items and constant value ranges in each protection device through an MMS communication service module;
s3, reading the fixed value items according to the step S2, automatically producing the fixed value template, exporting the fixed value template through a second USB interface (8) or automatically uploading the fixed value template after being connected to master station management and control software;
and S4, automatically comparing the constant value list read in the steps S1 and S2 with the constant value items read by each protection device, and controlling an alarm to give an alarm by the embedded CPU system when the constant value list is inconsistent with the constant value items read by each protection device.
6. The working method of the intelligent substation protection and secondary circuit handheld patrol instrument according to claim 5, wherein the working method of automatically comparing the constant value list with the constant value items read by each protection device in step S4 comprises the following steps:
a1, firstly, carrying out statistical classification on standardized constant value lists, identifying standardized constant value list formats by using a VTD (virtual terminal identification) analysis technology or an OCR (optical character recognition) mode recognition technology, extracting constant value information, forming a database file of a fixed format with device models as a classification, and carrying out mapping association with the constant values of corresponding IED devices to achieve a primary mapping permanent application effect and provide a basis for automatic one-key comparison;
a2, reading the fixed value on line, setting the fixed value as a standard fixed value after manually confirming that the fixed value is correct for the first time, and solidifying the fixed value into a database, wherein the fixed values read on line subsequently are compared with the fixed values read on line;
a3, automatically comparing the constant value database file read on line with the constant value single database file, when the files are not consistent, the embedded CPU system controls the alarm to give an alarm.
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| CN202011107666.9A CN112104088A (en) | 2020-10-16 | 2020-10-16 | Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof |
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| CN202011107666.9A CN112104088A (en) | 2020-10-16 | 2020-10-16 | Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113672531A (en) * | 2021-07-12 | 2021-11-19 | 贵阳锐泰电力科技有限公司 | Handheld terminal with fixed value modification and check functions |
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| CN211014619U (en) * | 2019-11-11 | 2020-07-14 | 广东电网有限责任公司茂名供电局 | Fixed value checking system for portable protection device of digital transformer substation |
| CN111475919A (en) * | 2020-03-12 | 2020-07-31 | 中国南方电网有限责任公司 | Automatic modeling method of protection device constant value calculation model based on ICD file |
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- 2020-10-16 CN CN202011107666.9A patent/CN112104088A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107247195A (en) * | 2017-07-06 | 2017-10-13 | 国网辽宁省电力有限公司沈阳供电公司 | Hand-held nuclear phase instrument and nuclear-phase method applied to intelligent substation |
| CN211014619U (en) * | 2019-11-11 | 2020-07-14 | 广东电网有限责任公司茂名供电局 | Fixed value checking system for portable protection device of digital transformer substation |
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