CN112485551A - Line loss monitoring system and method - Google Patents
Line loss monitoring system and method Download PDFInfo
- Publication number
- CN112485551A CN112485551A CN202011043293.3A CN202011043293A CN112485551A CN 112485551 A CN112485551 A CN 112485551A CN 202011043293 A CN202011043293 A CN 202011043293A CN 112485551 A CN112485551 A CN 112485551A
- Authority
- CN
- China
- Prior art keywords
- line loss
- module
- line
- electric quantity
- monitoring system
- 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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
Abstract
The invention relates to a line loss monitoring system, which comprises a line loss monitoring module, an electric quantity acquisition module, a line loss abnormity analysis module and a data storage module, wherein all the modules are connected through a data line; the line loss monitoring module comprises an electric quantity data processing module, a line loss calculating module and a display module which are mutually connected through a data line; the electric quantity acquisition module is connected with the plurality of electric quantity acquisition nodes through the wireless transceiving module. The system collects electric quantity data through an electric quantity collecting point, the electric quantity data are transmitted to the line loss monitoring module through the data line, the line loss monitoring module calculates actual line loss and theoretical line loss, results are displayed, meanwhile, the calculation results are transmitted to the line loss abnormity analysis module, the line loss abnormity analysis module analyzes the calculation results, if abnormity occurs, an alarm is given and an abnormity analysis report is made, real-time monitoring can be accurately and quickly carried out on line loss, and the working efficiency of workers is improved.
Description
Technical Field
The invention belongs to the technical field of monitoring line loss, and particularly relates to a line loss monitoring system and a line loss monitoring method.
Background
The line loss refers to energy loss generated by transmission of electric energy through a power transmission line, and specifically, active power consumed by resistance and conductance.
Along with the reduction of global primary energy, the problem of reducing the line loss is increasingly prominent, and the first problem of reducing the line loss is to find the line loss in time, monitor and alarm the line loss and take corresponding measures, thereby reducing the line loss from the source. However, in the prior art, there is no accurate and simple device for monitoring the line loss, and the requirement of monitoring and alarming the line loss cannot be met. This is a disadvantage of the prior art.
In view of the above, the present invention provides a line loss monitoring system and method; it is very necessary to solve the above-mentioned defects existing in the prior art.
Disclosure of Invention
The present invention is directed to a system and a method for monitoring line loss, which are designed to solve the above-mentioned problems.
A line loss monitoring system comprises a line loss monitoring module, an electric quantity acquisition module, a line loss abnormity analysis module and a data storage module; the line loss monitoring module comprises an electric quantity data processing module, a line loss calculating module and a display module;
the line loss monitoring module is connected to the electric quantity acquisition module, the line loss abnormity analysis module and the data storage module, and the data storage module is also connected to the electric quantity acquisition module and the line loss abnormity analysis module.
Preferably, the electric quantity acquisition module is connected with a plurality of electric quantity acquisition nodes through the wireless transceiver module, specifically, the electric quantity measuring device is connected with the electric quantity acquisition module through the wireless transceiver module, and electric quantity data can be transmitted efficiently and remotely.
Preferably, the electric quantity acquisition node comprises 3 electric quantity measuring devices; the electric quantity measuring device comprises electrodes and a current transformer, wherein the electrodes are respectively hung on A, B, C three phases of a measured line.
Preferably, the line loss calculation module calculates the actual line loss and the theoretical line loss by a calculation method. The actual line loss calculation method comprises the following steps: the actual line loss is the on-grid power-off-grid power, and the actual line loss rate is 100%. The theoretical line loss calculation method adopts a load flow calculation method, and specifically comprises the following steps: the power loss of the line, the transformer, the capacitor and the reactor equipment is calculated firstly, then the power loss is multiplied by the time to obtain the electric energy loss in the corresponding time period, and then the electric energy loss in each time period is summed to obtain the total electric energy loss of the line.
Preferably, the display module is a liquid crystal display.
Preferably, the line loss anomaly analysis module includes a line loss anomaly analysis unit and a line loss anomaly analysis library. The line loss abnormity analysis unit is connected with the line loss calculation module through a data line and is used for carrying out abnormity analysis on real-time actual line loss; the line loss abnormity analysis library is used for pre-analyzing all abnormal reasons which possibly cause line loss abnormity in each area in the power grid and line loss deviation ranges caused by the abnormal reasons, and constructing a mapping relation between each abnormal reason and the corresponding line loss deviation range.
A line loss monitoring method comprises the following steps:
s1, the electrodes are combined with a current transformer to measure the line current, the collected current signals and voltage phase signals are respectively sent to an electric quantity data processing module to carry out electric energy metering, and the result obtained by metering is sent to a line loss calculation module and a display module in real time through a data line;
s2, the line loss calculation module calculates actual line loss and theoretical line loss through a calculation method;
s3, the line loss abnormity analysis unit obtains actual line loss through the data line, compares the actual line loss with a preset normal line loss range, and sends a line loss alarm signal to the display module and the staff if the actual line loss exceeds the normal line loss range;
and S4, analyzing the line loss abnormal reason of the area with the line loss abnormal by using a pre-constructed line loss abnormal analysis library to obtain a corresponding abnormal reason analysis report.
The invention has the beneficial effects that the invention provides a line loss monitoring system and a monitoring method, the actual line loss and the theoretical line loss are calculated by acquiring the electric quantity data, the line is monitored in real time, the reason of the line loss is found out by analysis, the improvement is convenient, and the line loss management level is improved.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic diagram of a line loss monitoring system.
Fig. 2 is a schematic structural diagram of the power collection module.
Fig. 3 is a flow chart of the operation of the line loss monitoring system.
1 is an electric quantity acquisition module; 2 is a line loss monitoring module; 21 is an electric quantity data processing module; 22 is a line loss calculation module, and 23 is a display module; 3 is a data storage module; 4, a line loss abnormity analysis module; 41 is a line loss abnormality analysis unit; 42 is a line loss abnormity analysis library; 5 is a wireless receiving and transmitting module; and 6 is an electric quantity acquisition node.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1, a line loss monitoring system includes a line loss monitoring module 2, an electric quantity collecting module 1, a line loss abnormality analyzing module 4, and a data storage module 3, which are connected by data lines; the line loss monitoring module 2 comprises an electric quantity data processing module 21, a line loss calculating module 22 and a display module 23 which are connected with each other through a data line.
Fig. 1-2 are schematic structural diagrams illustrating that the electric quantity collection module 1 is connected with part of the electric quantity collection points 6 through the wireless transceiver module 5, and one electric quantity collection module 1 is connected with a plurality of electric quantity collection nodes 6. The electric quantity acquisition node 6 comprises 3 electric quantity measuring devices, and the electric quantity measuring devices are connected with the electric quantity acquisition module 1 through the wireless transceiver module 5. The electric quantity measuring device comprises electrodes and a current transformer, wherein the electrodes are respectively hung on A, B, C three phases of a measured line.
As shown in fig. 1-3, the work flow of the monitoring system is as follows: firstly, measuring line current by combining an electrode with a current transformer, respectively sending acquired current signals and voltage phase signals to an electric quantity data processing module 21 for electric energy metering, and transmitting the result obtained by metering to a line loss calculation module 22 and a display module 23 in real time through a data line; then, the line loss calculation module 22 calculates the actual line loss and the theoretical line loss through a calculation method; then, the line loss abnormality analysis unit 41 obtains actual line loss through the data line, compares the actual line loss with a preset normal line loss range, and sends a line loss alarm signal to the display module and the staff if the actual line loss exceeds the normal line loss range; and finally, analyzing the line loss abnormal reason of the area with the line loss abnormal by utilizing a pre-constructed line loss abnormal analysis library 42 to obtain a corresponding abnormal reason analysis report.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A line loss monitoring system is characterized by comprising a line loss monitoring module, an electric quantity acquisition module, a line loss abnormity analysis module and a data storage module; the line loss monitoring module comprises an electric quantity data processing module, a line loss calculating module and a display module; the line loss monitoring module is connected to the electric quantity acquisition module, the line loss abnormity analysis module and the data storage module, and the data storage module is also connected to the electric quantity acquisition module and the line loss abnormity analysis module; the electric quantity acquisition module is connected with the plurality of electric quantity acquisition nodes through the wireless transceiving module.
2. The line loss monitoring system of claim 1, wherein the power harvesting node comprises 3 power measurement devices.
3. The line loss monitoring system of claim 2, wherein the electricity measuring device comprises electrodes and a current transformer, and the electrodes are respectively hung on A, B, C three phases of the measured line.
4. The line loss monitoring system of claim 1, wherein the line loss calculation module calculates the actual line loss and the theoretical line loss by a calculation method.
5. The line loss monitoring system of claim 1, wherein the display module is a liquid crystal display.
6. The line loss monitoring system of claim 1, wherein the line loss anomaly analysis module comprises a line loss anomaly analysis unit and a line loss anomaly analysis library.
7. The line loss monitoring system according to claim 6, wherein the line loss abnormality analysis unit is connected to the line loss calculation module through a data line to perform abnormality analysis on real-time actual line loss.
8. A line loss monitoring method is characterized by comprising the following steps:
s1, the electrodes are combined with a current transformer to measure the line current, the collected current signals and voltage phase signals are respectively sent to an electric quantity data processing module to carry out electric energy metering, and the result obtained by metering is sent to a line loss calculation module and a display module in real time through a data line;
s2, the line loss calculation module calculates actual line loss and theoretical line loss through a calculation method;
s3, the line loss abnormity analysis unit obtains actual line loss through the data line, compares the actual line loss with a preset normal line loss range, and sends a line loss alarm signal to the display module and the staff if the actual line loss exceeds the normal line loss range;
and S4, analyzing the line loss abnormal reason of the area with the line loss abnormal by using a pre-constructed line loss abnormal analysis library to obtain a corresponding abnormal reason analysis report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043293.3A CN112485551A (en) | 2020-09-28 | 2020-09-28 | Line loss monitoring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043293.3A CN112485551A (en) | 2020-09-28 | 2020-09-28 | Line loss monitoring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112485551A true CN112485551A (en) | 2021-03-12 |
Family
ID=74920071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011043293.3A Pending CN112485551A (en) | 2020-09-28 | 2020-09-28 | Line loss monitoring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112485551A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336721A (en) * | 2022-01-06 | 2022-04-12 | 国网湖北省电力有限公司营销服务中心(计量中心) | Loss state grading early warning method for converter station of direct current transmission system |
| CN114336721B (en) * | 2022-01-06 | 2024-04-26 | 国网湖北省电力有限公司营销服务中心(计量中心) | Hierarchical early warning method for loss state of converter station of direct current transmission system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958654A (en) * | 2016-07-13 | 2016-09-21 | 广东电网有限责任公司 | Real-time monitoring method and system for line loss rate |
| CN206863138U (en) * | 2017-05-31 | 2018-01-09 | 吴子佳 | A kind of intelligent line loss detector |
| CN110806518A (en) * | 2019-10-21 | 2020-02-18 | 国网四川省电力公司成都供电公司 | Transformer area line loss abnormal motion analysis module and operation method thereof |
| CN111224469A (en) * | 2019-12-31 | 2020-06-02 | 深圳供电局有限公司 | Transmission line loss monitoring and early warning method, device, equipment and medium |
| CN111693795A (en) * | 2020-03-30 | 2020-09-22 | 贵州电网有限责任公司 | Intelligent electric meter-based transformer area line loss rate evaluation and abnormity judgment method |
-
2020
- 2020-09-28 CN CN202011043293.3A patent/CN112485551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958654A (en) * | 2016-07-13 | 2016-09-21 | 广东电网有限责任公司 | Real-time monitoring method and system for line loss rate |
| CN206863138U (en) * | 2017-05-31 | 2018-01-09 | 吴子佳 | A kind of intelligent line loss detector |
| CN110806518A (en) * | 2019-10-21 | 2020-02-18 | 国网四川省电力公司成都供电公司 | Transformer area line loss abnormal motion analysis module and operation method thereof |
| CN111224469A (en) * | 2019-12-31 | 2020-06-02 | 深圳供电局有限公司 | Transmission line loss monitoring and early warning method, device, equipment and medium |
| CN111693795A (en) * | 2020-03-30 | 2020-09-22 | 贵州电网有限责任公司 | Intelligent electric meter-based transformer area line loss rate evaluation and abnormity judgment method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336721A (en) * | 2022-01-06 | 2022-04-12 | 国网湖北省电力有限公司营销服务中心(计量中心) | Loss state grading early warning method for converter station of direct current transmission system |
| CN114336721B (en) * | 2022-01-06 | 2024-04-26 | 国网湖北省电力有限公司营销服务中心(计量中心) | Hierarchical early warning method for loss state of converter station of direct current transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Wide-area frequency monitoring network (FNET) architecture and applications | |
| CN103472331B (en) | A kind of photovoltaic generation fault diagnosis system based on photovoltaic physical model | |
| CN202177681U (en) | System for positioning fault of DC transmission line | |
| CN106291030B (en) | A kind of distribution network metering guard system | |
| CN101266263B (en) | Electric power metrological supervision system and supervision method | |
| CN110311709B (en) | Fault judgment method for electricity consumption information acquisition system | |
| CN104267373A (en) | Gateway meter assessment device | |
| CN110703009B (en) | Abnormal analysis and processing method for line loss rate of transformer area | |
| CN202049215U (en) | High-voltage power transmission line fault on-line monitoring system based on simple wavelet algorithm | |
| CN102497030A (en) | Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof | |
| CN102944741B (en) | Abnormal power usage monitoring method based on local power reference | |
| CN110736957B (en) | Online detection system and method for electric energy metering device based on clock synchronization | |
| CN109375120A (en) | The monitoring method of alternating current is scurried into DC power system | |
| CN102901868A (en) | Method for electric energy acquisition system data checking | |
| CN103983848B (en) | A kind of capacitor resonant tank early warning system based on capacitor branches monitoring point and method for early warning | |
| CN207424136U (en) | A kind of arrester on-line monitoring system | |
| CN112485551A (en) | Line loss monitoring system and method | |
| CN113075474A (en) | Electric energy measuring system and method | |
| CN210534318U (en) | Remote online monitoring system of gateway electric energy metering device | |
| CN202383482U (en) | Machine room dynamic analysis system | |
| CN104850751B (en) | A kind of current quality appraisal procedure | |
| KR20180057920A (en) | system for monitoring and analyzing photovoltaic efficiency | |
| CN203084169U (en) | Energy storage system monitoring device of photovoltaic power generation storage battery | |
| CN103513221B (en) | Secondary voltage drop/secondary load on-Line Monitor Device and system and monitoring method thereof | |
| CN207301195U (en) | A kind of busbar voltage sampler of arrester on-line 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: 20210312 |