CN111007354A - Power-off fault real-time positioning method for distribution room based on power acquisition terminal - Google Patents
Power-off fault real-time positioning method for distribution room based on power acquisition terminal Download PDFInfo
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- CN111007354A CN111007354A CN201911220162.5A CN201911220162A CN111007354A CN 111007354 A CN111007354 A CN 111007354A CN 201911220162 A CN201911220162 A CN 201911220162A CN 111007354 A CN111007354 A CN 111007354A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 21
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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Abstract
The invention discloses a power failure fault real-time positioning method for a distribution room based on a power acquisition terminal, which comprises the following steps: 1. determining a power acquisition terminal deployment scheme, 2 deploying the terminal and recording information, 3 generating a topological relation graph by a master station system, 4 alarming an event, and 5 positioning and reporting a monitoring fault point. According to the power-off monitoring system, the power acquisition terminals are arranged on the meter box and the outlet cabinet to monitor power failure or power on, the power acquisition terminals report the power failure or power on to the master station in real time, the master station updates the topological fault map in time and locates fault points, the fault range is marked, the power supply condition of a transformer area can be visually and effectively monitored in real time, the power failure range is marked when a power failure occurs, a power supply unit is efficiently helped to provide fault point information, faults are checked, power utilization is recovered, and the satisfaction degree of power utilization customers is.
Description
Technical Field
The invention relates to a power failure fault real-time positioning method for a transformer area based on a power acquisition terminal, and belongs to the technical field of power monitoring.
Background
At present, the power grid line structure in China is complex, the environment is diversified and changeable, when a power failure fault occurs in a power supply line, the fault occurrence position needs to be checked section by section, the working strength is high, the rush repair time is delayed, and the power supply reliability is influenced.
Currently, the judgment of the power failure condition of a terminal running on site is generated according to the power supply condition of the terminal, the power failure condition of the whole distribution area cannot be objectively reflected, and the judgment mode can generate a corresponding power failure event only under the condition of mains power failure and cannot timely reflect a fault point; the utilization of the terminal power failure information in the aspect of the master station is only limited to the recording and displaying of a single terminal, and the power failure condition of the whole distribution area cannot be reflected without further analysis according to corresponding information. In order to monitor the operation status of the distribution room by using the power failure information of the terminal, the power failure/power up event of the existing terminal needs to be integrally planned and monitored, and the function of the main station is improved.
Therefore, the invention provides a power failure fault real-time positioning method for a distribution room based on a power acquisition terminal.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a power failure fault real-time positioning method for a transformer area based on a power acquisition terminal, namely, when a power failure fault occurs in the transformer area, a fault point can be quickly positioned, the fault can be checked, the power consumption can be recovered, and the satisfaction degree of power consumption customers can be improved, so that the problems can be solved, and the technical scheme is as follows:
the power failure fault real-time positioning method for the distribution room based on the power acquisition terminal comprises the following steps:
the method comprises the following steps: determining a power acquisition terminal deployment scheme: carrying out electric power investigation and data collection on the monitoring area, recording the topological relation of electric power equipment of the monitoring area, wherein the electric power equipment comprises a transformer, an outlet cabinet, a branch box and a meter box, and determining the deployment scheme of the electric power acquisition terminal of the monitoring area according to the topological relation;
step two: deploying the terminal and recording information: corresponding electric power acquisition terminals are respectively deployed in a meter box and an outlet cabinet of a monitoring area, and the serial number and the deployment position information of the acquisition terminals are recorded;
step three: the master station system generates a topological relation graph: recording the topological relation of the power equipment, the related power acquisition terminal number and the position information into a master station system, and generating a topological relation graph of a monitoring area by the master station;
step four: and (3) event alarming: when a power failure or power-on event occurs on site, the power acquisition terminal actively alarms to the master station and reports the specific situation of the event;
step five: positioning and reporting a monitoring fault point: and the master station locates a fault point for the power failure or power-on event reported by the power acquisition terminal and updates a fault monitoring topological relation graph in real time.
Furthermore, in the fourth step, the voltage acquisition module of the power acquisition terminal converts the commercial power into a low voltage acceptable by the metering chip through the voltage transformer, the metering chip converts the low voltage into a digital signal and sends the digital signal to the MCU unit, and the MCU unit reads the digital signal and obtains the monitored real voltage through the conversion of the proportionality coefficient.
Furthermore, when the power is off on site in the fourth step, the power acquisition terminal runs and is switched to the standby power supply provided by the super capacitor from the mains supply for supplying power, the GPRS module of the power acquisition terminal reports the power failure fault to the master station, and the power acquisition terminal receives the reply information of the master station and stops reporting the power failure event.
Further, when the field is powered on in the fourth step, the power acquisition terminal resumes operation and actively reports the power-on event to the master station.
Furthermore, the master station updates the topological relation graph of the distribution area in real time according to the power failure event reported by the power acquisition terminal in the fifth step, and the power failure range is marked in red.
Further, the master station updates the power failure range marked with the red mark to black according to the power-on event reported by the power acquisition terminal, indicates that the power failure range recovers power supply, and updates the topological relation diagram of the distribution room again.
Further, the voltage acquisition frequency of the MCU unit is 800 HZ.
Has the advantages that:
the power failure fault real-time positioning method based on the power acquisition terminal can intuitively and effectively monitor the power supply condition of the power distribution area in real time, mark the power failure range when the power failure fault occurs, efficiently help a power supply unit to provide fault point information, troubleshoot the fault, recover power utilization and improve the satisfaction degree of power utilization customers.
Drawings
FIG. 1 is a schematic flow chart of the present invention,
fig. 2 is a real-time fault monitoring topology relationship diagram of the present invention.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
The scheme of the invention is described in detail below by combining the deployment of the power acquisition terminal and the monitoring of the main station of the intermediate substation of Changzhou 10kV Juhu home # 1.
Example 1:
step 1: determining the power supply range of a 10kV lake gathering homestead #1 intermediate substation, performing field investigation and data collection on the transformer area, determining the topological relation among the transformer, the outgoing line cabinet, the branch box and the meter box of the transformer area, and accordingly determining the deployment scheme of the power acquisition terminal.
Step 2: according to the deployment scheme, 26 electric power acquisition terminals and 3 outgoing line cabinet acquisition terminals are respectively installed on a meter box, and information such as the number and the deployment position of the related acquisition terminals is recorded.
And step 3: and (3) recording the topological relation of the distribution area in the step (1) and the information such as the number, the deployment position and the like of the relevant power acquisition terminal in the step (2) into a master station system, and generating a topological relation graph of the distribution area by the master station.
And 4, step 4: when a power failure/power up event occurs on site, the power acquisition terminal can actively report the corresponding event to the master station, and the method specifically comprises the following steps:
step 4.1: a voltage acquisition module of the power acquisition terminal converts commercial power into low voltage acceptable by a metering chip through a voltage transformer, converts the low voltage into digital signals through the metering chip, and obtains the monitored real voltage through conversion of a calculated proportionality coefficient after the MCU unit reads the digital signals.
Step 4.2: the frequency of the acquired voltage of the MCU is 800HZ, once the mains supply is powered down, the power acquisition terminal operates a standby power supply mode switched to the super capacitor by the mains supply, meanwhile, the power failure fault of the power acquisition terminal is reported to the master station through the GPRS module, the power acquisition terminal receives reply confirmation information of the master station, the reporting of the power failure event is stopped, and the reporting of the power failure event to the master station is ensured.
Step 4.3: and the mains supply resumes to supply power, and the power acquisition terminal actively reports the power-on event to the master station after resuming to operate.
And 5: and the master station updates the fault monitoring topological graph in real time according to the power-off/on events reported by the power acquisition terminal and locates fault points. The method specifically comprises the following steps:
step 5.1: the master station system updates the topological graph of the distribution room in real time according to the power failure event reported by the power acquisition terminal, marks the power failure range in red, and is convenient for a power supply unit to quickly locate a failure point, check the failure and recover power utilization.
Step 5.2: and the master station system updates the power failure range with the red mark to be black according to the power-on event reported by the power acquisition terminal, and indicates that the power failure range recovers power supply.
Step 5.3: and the power supply unit can monitor the power supply condition of the distribution area in real time according to the topology fault map updated by the master station in real time to the distribution area, so that the power supply reliability is ensured.
According to the power supply monitoring system and method, the power acquisition terminal is arranged on the meter box to monitor power failure or power supply, the power acquisition terminal reports the power failure or power supply to the master station in real time, the master station updates the topological fault map in time and locates fault points, the fault range is marked, the power supply condition of a distribution area can be monitored visually and effectively in real time, the power failure range is marked when a power failure occurs, a power supply unit is helped to provide fault point information efficiently, faults are checked, power utilization is recovered, and the satisfaction degree of power utilization customers is.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A power failure fault real-time positioning method for a distribution room based on a power acquisition terminal is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: determining a power acquisition terminal deployment scheme: carrying out electric power investigation and data collection on the monitoring area, recording the topological relation of electric power equipment of the monitoring area, wherein the electric power equipment comprises a transformer, an outlet cabinet, a branch box and a meter box, and determining the deployment scheme of the electric power acquisition terminal of the monitoring area according to the topological relation;
step two: deploying the terminal and recording information: corresponding electric power acquisition terminals are respectively deployed in a meter box and an outlet cabinet of a monitoring area, and the serial number and the deployment position information of the acquisition terminals are recorded;
step three: the master station system generates a topological relation graph: recording the topological relation of the power equipment, the related power acquisition terminal number and the position information into a master station system, and generating a topological relation graph of a monitoring area by the master station;
step four: and (3) event alarming: when a power failure or power-on event occurs on site, the power acquisition terminal actively alarms to the master station and reports the specific situation of the event;
step five: positioning and reporting a monitoring fault point: and the master station locates a fault point for the power failure or power-on event reported by the power acquisition terminal and updates a fault monitoring topological relation graph in real time.
2. The power failure fault real-time positioning method based on the power acquisition terminal of claim 1, characterized in that: and in the fourth step, a voltage acquisition module of the power acquisition terminal converts the commercial power into low voltage acceptable by a metering chip through a voltage transformer, the metering chip converts the low voltage into a digital signal and sends the digital signal to an MCU (micro control unit), and the MCU reads the digital signal and obtains the monitored real voltage through conversion of a proportionality coefficient.
3. The power failure fault real-time positioning method based on the power acquisition terminal of claim 1, characterized in that: when the power failure occurs in the site in the fourth step, the power acquisition terminal runs and is switched to the standby power supply provided by the super capacitor through mains supply power supply, the GPRS module of the power acquisition terminal reports the power failure fault to the master station, and the power acquisition terminal receives the reply information of the master station and stops reporting of the power failure event.
4. The power failure fault real-time positioning method based on the power acquisition terminal of claim 1, characterized in that: and when the field is powered on in the fourth step, the power acquisition terminal resumes running and actively reports the power-on event to the master station.
5. The power failure fault real-time positioning method based on the power acquisition terminal of claim 1, characterized in that: and in the fifth step, the master station updates the topological relation graph of the distribution room in real time according to the power failure event reported by the power acquisition terminal, and the power failure range is marked in red.
6. The power failure fault real-time positioning method based on the power acquisition terminal of claim 1, characterized in that: and in the fifth step, the master station updates the power failure range of the red mark to black according to the power-on event reported by the power acquisition terminal, indicates that the power failure range recovers power supply, and updates the topological relation graph of the distribution room again.
7. The power failure fault real-time positioning method based on the power acquisition terminal of claim 2, characterized in that: the frequency of the voltage collected by the MCU unit is 800 HZ.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220162.5A CN111007354A (en) | 2019-12-03 | 2019-12-03 | Power-off fault real-time positioning method for distribution room based on power acquisition terminal |
| PCT/CN2020/095233 WO2021109524A1 (en) | 2019-12-03 | 2020-06-09 | Transformer area power failure fault real-time locating method based on electric power collection terminal |
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| CN201911220162.5A CN111007354A (en) | 2019-12-03 | 2019-12-03 | Power-off fault real-time positioning method for distribution room based on power acquisition terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112130015A (en) * | 2020-09-08 | 2020-12-25 | 中国联合网络通信集团有限公司 | Intelligent monitoring fault analysis method and system for power distribution equipment |
| WO2021109524A1 (en) * | 2019-12-03 | 2021-06-10 | 江苏智臻能源科技有限公司 | Transformer area power failure fault real-time locating method based on electric power collection terminal |
| CN113189519A (en) * | 2021-03-29 | 2021-07-30 | 深圳市科陆电子科技股份有限公司 | Power failure detection method and system for platform area outgoing line and storage medium |
| CN113283041A (en) * | 2021-05-21 | 2021-08-20 | 石家庄科林电气股份有限公司 | Power failure area rapid studying and judging method based on multi-source information fusion perception algorithm |
| CN113589103A (en) * | 2021-08-03 | 2021-11-02 | 贵州电网有限责任公司 | Method for judging power failure of user in real time based on terminal power failure alarm |
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