CN113759693A - System and method for verifying time synchronization system of transformer substation - Google Patents
System and method for verifying time synchronization system of transformer substation Download PDFInfo
- Publication number
- CN113759693A CN113759693A CN202110886836.6A CN202110886836A CN113759693A CN 113759693 A CN113759693 A CN 113759693A CN 202110886836 A CN202110886836 A CN 202110886836A CN 113759693 A CN113759693 A CN 113759693A
- Authority
- CN
- China
- Prior art keywords
- module
- data
- time
- substation
- power supply
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
Abstract
The invention discloses a system and a method for calibrating a time synchronization system of a transformer substation. The invention transmits the acquired time data of the in-station equipment to a detection analysis module; the positioning time service module transmits the received time data to the detection analysis module; the data receiving and converting module transmits the converted data to the detection and analysis module; the detection analysis module receives the time data of each module, and the data comparison is carried out through the comparison analysis unit; when the substation equipment time synchronization system is detected to be out of order, the substation equipment time synchronization data is updated, calibrated and corrected through the time synchronization control module, and faults of the substation equipment time synchronization system are eliminated in time.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a system and a method for verifying a time synchronization system of a transformer substation.
Background
The power grid system is a time-related system, the actions of a breaker and a protection device are required for the systematic analysis of the operation and the accident of the power grid, the time sequence of the occurrence of various events is required, and a substation providing the time sequence is essential for the time synchronization system. The substation time synchronization system is very important, and is used for synchronizing time of equipment such as a fault recorder, a relay protection device, a measurement and control device and a background monitoring system, so that the equipment operates based on a uniform time reference, and the requirements of fault recording, real-time data acquisition time consistency, time sequence recording (SOE) and the like are met, and the process and the reason of various events can be accurately analyzed. In an intelligent substation, the time setting precision required by the substation for the time setting system is less than 1us, and the importance of the time setting system is more and more prominent. When merging units are cascaded, each merging unit receives time tick signals of the same time synchronizer, and the abnormal time tick system causes the urgent defect of synchronous abnormal alarm of the merging units. For the line pilot differential protection and the bus differential protection, if a certain merging unit is abnormal in time pair, even protection malfunction may be caused. However, the existing transformer substation lacks a corresponding checking device for the time synchronization system, and cannot judge whether the time synchronization system of each device runs normally.
For example, chinese patent CN105407317A, published 2016, 3, 16, discloses a video monitoring and time synchronization system based on an intelligent substation, which includes a video monitoring network server, a WEB browsing server, a GPS time synchronizer and a full digital IPC system. The all-digital IPC system is arranged at the intelligent substation end and carries out network NTP time synchronization through a high-speed communication data network; the intelligent substation is based on IEC61850 technical protocol, supports NTP (network time protocol) (SNTP), and directly clocks the video monitoring host computer of the intelligent substation through a network switch. The method is mainly aimed at time synchronization adjustment of video monitoring, cannot provide support for time synchronization of other power equipment of the transformer substation, lacks a detection device for a time synchronization system of the transformer substation, and cannot judge whether the time synchronization system of the transformer substation is in failure.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem that whether a time synchronization system of equipment in a substation fails or not cannot be judged due to the fact that the current time synchronization system of the substation lacks a corresponding checking device is solved. The transformer substation time synchronization system calibration system and method can calibrate the transformer substation time synchronization system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a calibration system of transformer substation time tick system, is including the collection module, location time service module, data reception conversion module, detection analysis module that are used for gathering substation equipment time data and be used for correcting the time tick control module of transformer substation equipment time data, collection module with detection analysis module connects, data reception conversion module with location time service module connects, detection analysis module respectively with location time service module data reception conversion module with time tick control module connects.
A calibration system of a substation time synchronization system collects substation equipment time data through a collection module and transmits the collected data to a detection analysis module; the positioning time service module transmits the received time data to the detection analysis module; the data receiving and converting module carries out data conversion on the data received by the positioning time service module and transmits the converted data to the detection and analysis module; the detection analysis module receives the time data of each module, and the data comparison is carried out through the comparison analysis unit; when the substation equipment time synchronization system is detected to have faults, the time synchronization control module is used for updating, calibrating and correcting time synchronization data of the substation equipment. The detection analysis module can also be provided with a timing unit to periodically start a verification program of the substation equipment time synchronization system.
Preferably, the detection and analysis module comprises an in-station data receiving unit, a time service data receiving unit, a conversion data receiving unit and a comparison and analysis unit, the in-station data receiving unit is connected with the acquisition module, the time service data receiving unit is connected with the positioning time service module, the conversion data receiving unit is connected with the data receiving and conversion module, and the comparison and analysis unit is respectively connected with the in-station data receiving unit, the time service data receiving unit and the conversion data receiving unit. The time data of the equipment in the station, the satellite time service data and the time service converted data are respectively acquired through the data receiving unit, the time service data receiving unit and the conversion data receiving unit in the station, and the sampling comparison is carried out through the integration of the comparison and analysis unit, so that whether the equipment time service system has a fault or not is judged.
Preferably, the system further comprises a data storage module for storing a time calibration record, and the data storage module is connected with the comparative analysis unit. The data storage module stores the time synchronization calibration record data, so that the time synchronization fault reason can be conveniently extracted and analyzed in the later period.
Preferably, the system further comprises a power supply module, wherein the power supply module comprises an external power supply unit and an internal power supply unit, the external power supply unit is connected with the internal power supply unit, and the external power supply unit and the internal power supply unit are both connected with the detection and analysis module. The power is supplied by two power supply modes of the external power supply unit and the internal power supply unit, and the external power supply unit is powered by the internal power supply unit when the external power supply unit is powered off, so that the influence of external power off on the system is prevented.
Preferably, the internal power supply unit comprises an energy storage battery subunit and a boosting power supply subunit, and the energy storage battery subunit is connected with the detection and analysis module through the boosting power supply subunit. The energy storage battery subunit can adopt a rechargeable lithium battery to store energy, and the energy storage battery subunit is connected with the external power supply unit to charge the lithium battery.
Preferably, the system further comprises a liquid crystal display module, and the liquid crystal display module is connected with the detection analysis module. The liquid crystal display module is mainly used for displaying time, and an operator can conveniently and visually check whether an error fault occurs in the time synchronization system.
A method for verifying a time synchronization system of a transformer substation is provided, and the method comprises the following steps:
s1: the method comprises the steps that time data of substation equipment are collected through a collection module, and the collected data are transmitted to a detection analysis module;
s2: the positioning time service module transmits the received time data to the detection analysis module;
s3: the data receiving and converting module carries out data conversion on the data received by the positioning time service module and transmits the converted data to the detection and analysis module;
s4: the detection analysis module receives the time data of each module, and the data comparison is carried out through the comparison analysis unit;
s5: when the substation equipment time synchronization system is detected to have faults, time synchronization data calibration and correction are carried out on the substation equipment through the time synchronization control module.
The substation equipment is provided with a time synchronization system, the time service data receiving unit and the conversion data receiving unit in the detection and analysis module receive data in a consistent manner, but the time service data receiving unit and the conversion data receiving unit are different from the acquired time data of the substation equipment, the time synchronization system on the substation equipment is in fault, and the detection and analysis module updates and corrects the equipment time when the substation equipment is idle through the time synchronization control module.
The substantial effects of the invention are as follows: the invention collects the time data of the transformer substation equipment through the collection module and transmits the collected data to the detection analysis module; the positioning time service module transmits the received time data to the detection analysis module; the data receiving and converting module carries out data conversion on the data received by the positioning time service module and transmits the converted data to the detection and analysis module; the detection analysis module receives the time data of each module, and the data comparison is carried out through the comparison analysis unit; when the substation equipment time synchronization system is detected to be out of order, the substation equipment time synchronization data is updated, calibrated and corrected through the time synchronization control module, and faults of the substation equipment time synchronization system are eliminated in time.
Drawings
FIG. 1 is a schematic composition diagram of the present embodiment;
FIG. 2 is a flowchart illustrating the steps performed in this embodiment.
Wherein: 1. the system comprises an acquisition module, 2, a positioning time service module, 3, a data receiving and converting module, 4, a detection and analysis module, 5, a time service control module, 6, a data storage module, 7, a power supply module, 8, a liquid crystal display module, 9, an in-station data receiving unit, 10, a time service data receiving unit, 11, a converted data receiving unit, 12, a comparison and analysis unit, 13, an external power supply unit, 14, an energy storage battery subunit, 15 and a boosting power supply subunit.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
A checking system of a substation time synchronization system is shown in figure 1 and comprises a collecting module 1 used for collecting substation equipment time data, a positioning time service module 2, a data receiving and converting module 3, a detection and analysis module 4 and a time synchronization control module 5 used for correcting the substation equipment time data, wherein the time synchronization control module 5 can be connected with a time calculation module of the substation equipment so that the time of correcting the substation equipment is changed through the time synchronization control module 5 when the time calculation of the substation equipment fails. The acquisition module 1 is connected with the detection analysis module 4, the data receiving conversion module 3 is connected with the positioning time service module 2, the detection analysis module 4 comprises an in-station data receiving unit 9, a time service data receiving unit 10, a conversion data receiving unit 11 and a comparison analysis unit 12, the in-station data receiving unit 9 is connected with the acquisition module 1, the time service data receiving unit 10 is connected with the positioning time service module 2, the conversion data receiving unit 11 is connected with the data receiving conversion module 3, and the comparison analysis unit 12 is respectively connected with the in-station data receiving unit 9, the time service data receiving unit 10 and the conversion data receiving unit 11. The in-station data receiving unit 9, the time service data receiving unit 10 and the conversion data receiving unit 11 are used for respectively acquiring in-station equipment time data, satellite time service data and time service converted data, and the in-station equipment time service data, the satellite time service data and the time service converted data are integrated through the comparison and analysis unit 12 to be sampled and compared with each other, so that whether the equipment time service system has a fault or not is judged.
The detection analysis module 4 is respectively connected with the positioning time service module 2, the data receiving and converting module 3 and the time synchronization control module 5. The positioning time service module 2 can be a medium ATGM332D satellite positioning time service module 2, the module can work at-40-85 ℃, the receiving sensitivity is up to-160 dBm, the Beidou/GPS satellite positioning signals can be received only by placing the mushroom head of the receiving antenna outside a window, and the module is provided with an EEPROM and a battery and can store ephemeris data. The standard SMA antenna interface can be switched, the wiring is flexible, accurate and quick, the power consumption is low, and the working requirements of the transformer substation are met.
The data receiving and converting module 3 can receive Beidou/GPS dual-mode satellite signals as external reference signals through an internal B code receiving module, time frequency synchronization is carried out on the module by using external time frequency signals, an STM32F4 single chip microcomputer is adopted to finish the acquisition, demodulation and generation of the time signals, IRIG-B (DC) code signals and 1PPS (second signal) synchronization pulse signals are generated. And the photoelectric conversion modules (HFBR-2412 and HFBR-1414) and the SNTP module are integrated on the PCB. The module carries out photoelectric interconversion on the input IRIG-B code electric signal or optical signal, namely the IRIG-B electric signal is input to output an IRIG-B code optical signal, the IRIG-B optical signal is input to output an IRIG-B code electric signal, and the module has the advantages of high voltage isolation, electromagnetic interference resistance, lightning stroke resistance and the like.
The detection and analysis module 4 is also connected with the liquid crystal display module 8, and the liquid crystal display module 8 is mainly used for displaying time, so that an operator can more intuitively check whether an error fault occurs in the time synchronization system. The detection and analysis module 4 may further set a timing unit to periodically start a calibration procedure for the substation equipment timing system.
The system also comprises a data storage module 6 and a power supply module 7, wherein the data storage module 6 is used for storing the time synchronization calibration records, and the data storage module 6 is connected with the comparative analysis unit 12. The data storage module 6 stores the time setting calibration record data, so that the time setting fault reason can be conveniently extracted and analyzed in the later period. The power supply module 7 comprises an external power supply unit 13 and an internal power supply unit, the external power supply unit 13 is connected with the internal power supply unit, and the external power supply unit 13 and the internal power supply unit are both connected with the detection and analysis module 4. The external power supply unit 13 and the internal power supply unit supply power in two power supply modes, and the internal power supply unit supplies power when the external power supply unit 13 is powered off, so that the system is prevented from being influenced by external power off. The internal power supply unit comprises an energy storage battery subunit 14 and a boosting electronic supply unit 15, and the energy storage battery subunit 14 is connected with the detection analysis module 4 through the boosting electronic supply unit 15. The energy storage battery subunit 14 can use a rechargeable lithium battery to store energy, and the energy storage battery subunit 14 is connected with the external power supply unit 13 to charge the lithium battery.
A method for verifying a time synchronization system of a transformer substation utilizes the system, as shown in FIG. 2, and comprises the following steps:
s1: the method comprises the steps that time data of the substation equipment are collected through a collection module 1, and the collected data are transmitted to a detection analysis module 4;
s2: the positioning time service module 2 transmits the received time data to the detection analysis module 4;
s3: the data receiving and converting module 3 carries out data conversion on the data received by the positioning time service module 2 and transmits the converted data to the detection and analysis module 4;
s4: the detection analysis module 4 receives the time data of each module, and the data comparison is carried out through the comparison analysis unit 12;
s5: when the substation equipment time synchronization system is detected to have faults, time synchronization data calibration correction is carried out on the substation equipment through the time synchronization control module 5.
The substation equipment is provided with a time synchronization system, the time service data receiving unit 10 and the conversion data receiving unit 11 in the detection and analysis module 4 receive data in a consistent manner, but the time service data is different from the acquired time data of the substation equipment, and the time synchronization system on the substation equipment breaks down, the detection and analysis module 4 updates and corrects the equipment time when the substation equipment is idle through the time synchronization control module 5, namely the correct time is transmitted to the substation equipment through the time synchronization control module 5, and the time of the substation equipment is updated.
In the embodiment, the acquisition module 1 acquires the time data of the substation equipment, and transmits the acquired data to the detection analysis module 4; the positioning time service module 2 transmits the received time data to the detection analysis module 4; the data receiving and converting module 3 carries out data conversion on the data received by the positioning time service module 2 and transmits the converted data to the detection and analysis module 4; the detection analysis module 4 receives the time data of each module, and the data comparison is carried out through the comparison analysis unit 12; when the substation equipment time synchronization system is detected to be out of order, the substation equipment is updated, calibrated and corrected according to the time synchronization data through the time synchronization control module 5, and the fault of the substation equipment time synchronization system is eliminated in time.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a check-up system of transformer substation time tick system, its characterized in that, including collection module (1) that is used for gathering transformer substation equipment time data, location time service module (2), data reception conversion module (3), detection analysis module (4) and time tick control module (5) that is used for correcting transformer substation equipment time data, collection module (1) with detection analysis module (4) are connected, data reception conversion module (3) with location time service module (2) are connected, detection analysis module (4) respectively with location time service module (2) data reception conversion module (3) with time tick control module (5) are connected.
2. The verification system of the substation time synchronization system according to claim 1, wherein the detection analysis module (4) comprises an in-station data receiving unit (9), a time service data receiving unit (10), a conversion data receiving unit (11) and a comparison analysis unit (12), the in-station data receiving unit (9) is connected with the acquisition module (1), the time service data receiving unit (10) is connected with the positioning time service module (2), the conversion data receiving unit (11) is connected with the data receiving conversion module (3), and the comparison analysis unit (12) is respectively connected with the in-station data receiving unit (9), the time service data receiving unit (10) and the conversion data receiving unit (11).
3. A verification system for a substation time tick system according to claim 1 or 2 further comprising a data storage module (6) for storing time tick calibration records, wherein the data storage module (6) is connected to the comparative analysis unit (12).
4. The substation time synchronization system verification system according to claim 1 or 2, further comprising a power supply module (7), wherein the power supply module (7) comprises an external power supply unit (13) and an internal power supply unit, the external power supply unit (13) is connected with the internal power supply unit, and both the external power supply unit (13) and the internal power supply unit are connected with the detection and analysis module (4).
5. A verification system for a substation time synchronization system according to claim 4, wherein the internal power supply unit comprises an energy storage battery subunit (14) and a voltage boosting and power supplying electronic unit (15), and the energy storage battery subunit (14) is connected with the detection and analysis module (4) through the voltage boosting and power supplying electronic unit (15).
6. A verification system for a substation time tick system according to claim 1 or 2 or 5, characterized by further comprising a liquid crystal display module (8), wherein the liquid crystal display module (8) is connected with the detection analysis module (4).
7. A method for verifying a time synchronization system of a substation by using the system as claimed in any one of claims 1-6, comprising the following steps:
s1: the method comprises the steps that time data of the substation equipment are collected through a collection module (1), and the collected data are transmitted to a detection analysis module (4);
s2: the positioning time service module (2) transmits the received time data to the detection analysis module (4);
s3: the data receiving and converting module (3) carries out data conversion on the data received by the positioning time service module (2), and transmits the converted data to the detection and analysis module (4);
s4: the detection analysis module (4) receives the time data of each module, and the data comparison is carried out through the comparison analysis unit (12);
s5: when the substation equipment time synchronization system is detected to have faults, time synchronization data calibration correction is carried out on the substation equipment through the time synchronization control module (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886836.6A CN113759693A (en) | 2021-08-03 | 2021-08-03 | System and method for verifying time synchronization system of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886836.6A CN113759693A (en) | 2021-08-03 | 2021-08-03 | System and method for verifying time synchronization system of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113759693A true CN113759693A (en) | 2021-12-07 |
Family
ID=78788440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110886836.6A Pending CN113759693A (en) | 2021-08-03 | 2021-08-03 | System and method for verifying time synchronization system of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113759693A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203135907U (en) * | 2013-01-31 | 2013-08-14 | 福建省电力有限公司 | Time quality monitoring system |
| CN203465541U (en) * | 2013-05-09 | 2014-03-05 | 武汉三江中电科技有限责任公司 | Beidou/GPS double-time service source-based failure time recording device |
| CN104280642A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Intelligent substation equipment detecting method based on satellite timing synchronization |
| CN105511255A (en) * | 2015-12-02 | 2016-04-20 | 北京七维航测科技股份有限公司 | Lossless switching clock source equipment |
| CN106773635A (en) * | 2016-12-27 | 2017-05-31 | 天津七六四通信导航技术有限公司 | A kind of time service precision detecting system and implementation method |
| CN113037458A (en) * | 2021-03-02 | 2021-06-25 | 中国地震局地球物理研究所 | High-precision synchronous time service system |
-
2021
- 2021-08-03 CN CN202110886836.6A patent/CN113759693A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203135907U (en) * | 2013-01-31 | 2013-08-14 | 福建省电力有限公司 | Time quality monitoring system |
| CN203465541U (en) * | 2013-05-09 | 2014-03-05 | 武汉三江中电科技有限责任公司 | Beidou/GPS double-time service source-based failure time recording device |
| CN104280642A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Intelligent substation equipment detecting method based on satellite timing synchronization |
| CN105511255A (en) * | 2015-12-02 | 2016-04-20 | 北京七维航测科技股份有限公司 | Lossless switching clock source equipment |
| CN106773635A (en) * | 2016-12-27 | 2017-05-31 | 天津七六四通信导航技术有限公司 | A kind of time service precision detecting system and implementation method |
| CN113037458A (en) * | 2021-03-02 | 2021-06-25 | 中国地震局地球物理研究所 | High-precision synchronous time service system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102361356B (en) | System and method for testing remote communication volume of transformer substation testing-controlling device | |
| CN102006159B (en) | Multi-slave clock sampling value multi-interface synchronizing system based on IEEE1588 | |
| CN107346995A (en) | Clock synchronizing method based on power information acquisition terminal | |
| CN203909162U (en) | Electric energy quality collection apparatus | |
| CN201425705Y (en) | Electric power system time synchronizer | |
| CN201425704Y (en) | Satellite synchronous main clock device | |
| CN108693493B (en) | Calibration method for standard power quality monitoring device | |
| CN203465541U (en) | Beidou/GPS double-time service source-based failure time recording device | |
| CN113992294A (en) | Clock management control method and device in electricity consumption information acquisition system | |
| CN113391544A (en) | Time synchronization system calibration device and method based on Beidou GPS | |
| CN113391543A (en) | Time synchronization system calibration device based on Beidou GPS | |
| CN106646122A (en) | Line distribution monitoring system based on wireless transmission and synchronization sampling method | |
| CN107300849A (en) | The measuring method and on-line monitoring system of a kind of precision clock | |
| CN111579918B (en) | Sampling synchronous correction method for transient recording type fault indicator | |
| CN113759693A (en) | System and method for verifying time synchronization system of transformer substation | |
| CN113031028A (en) | Intelligent terminal for timing by using multi-satellite timing system and timing method | |
| CN202340147U (en) | Remote signaling quantity testing system of measuring and control device of power substation | |
| CN204789827U (en) | Intelligent substation merging cells error testing arrangement that keeps time | |
| CN113721446A (en) | Centralized time synchronization management system and method for transformer substation | |
| CN211015875U (en) | Collection equipment with accurate time setting function | |
| CN114114134A (en) | Time synchronization method of intelligent electric energy meter | |
| CN206710493U (en) | The system that Multipoint synchronous measures micro-current | |
| Zheng et al. | Research on clock synchronization technology of metering equipment based on satellite communication and wide area hierarchical aggregation | |
| CN218068611U (en) | Distribution terminal big dipper time setting device | |
| CN215956385U (en) | High-precision LX-day servo feed subsystem for ocean information remote sensing monitoring |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211207 |