CN204389628U - A kind of electric network fault automatic positioning equipment based on Multi-information acquisition - Google Patents

Abstract

The utility model discloses a power grid fault automatic positioning device based on multi-information fusion, which comprises a distribution transformer alarm information collection unit for judging the first range of the fault area; an FTU alarm information collection unit for collecting FTU within the first range of the fault area The alarm information narrows the fault area to the second range; the 95598 artificial platform information collection unit collects the user’s alarm information in the second range of the fault area, and narrows the fault area to the third range; the fault indicator information collection unit, in the In the third range of the fault area, the fault is accurately located on a certain line or a certain part of the line; the data switch, through the power communication network and distribution transformer alarm information collection unit, FTU alarm information collection unit, 95598 manual platform The information collection unit and the fault indicator information collection unit are respectively connected; the upper computer, which is connected with the data switch, locates the faulty component and displays the positioning result.

Description

A power grid fault automatic location device based on multi-information fusion

technical field

The utility model relates to the field of distribution networks of electric power systems, in particular to an automatic fault location device for power grids based on multi-information fusion.

Background technique

At present, after the distribution network fails, there are many information that can be used for fault location, such as fault indicator information, distribution transformer fault information, 95598 manual platform, FTU alarm information and distribution network topology. This information is currently only used for fault diagnosis is limited to fault indicators. If the information collection system of the fault indicator fails, or if the fault indicator is not installed in a certain area, it is difficult to implement the technology of fault location in the distribution network. In addition, due to the large variety of electrical equipment in the distribution network, short lines, many branch lines, and complex types of switchgear equipment, some early switchgear equipment has rough manufacturing technology, poor quality and performance, and its protection and control automation is far inferior to that of the transmission network. , so the probability of its failure is much greater than that of the transmission network, which affects the improvement of the reliability of the grid power supply. Based on the above analysis, the utility model is dedicated to integrating all available distribution network fault-related information to locate the distribution network fault, so as to improve the power supply reliability of the distribution network.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model proposes a power grid fault automatic positioning device based on multi-information fusion, which is used to realize the intelligence of fault positioning, and can be used as a reference for operators to improve the analysis ability of distribution network accidents and Power supply reliability, through the method of narrowing the fault area step by step, the purpose of quickly locating the fault is achieved.

In order to achieve the above object, the utility model adopts the following technical solutions:

A power grid fault automatic location device based on multi-information fusion, including: distribution transformer alarm information collection unit, which is responsible for collecting distribution transformer information, when a fault occurs in a certain area, an alarm message is generated, and this area constitutes the first place to judge the fault area scope;

FTU alarm information collection unit, which collects FTU alarm information in the first range of the fault area, and narrows the fault area into a second range;

95598 artificial station information collection unit, which collects the alarm information of electricity users within the second range of the fault area, and narrows the fault area to the third range;

A fault indicator information collection unit, which collects fault information within the third range of the fault area, and accurately locates the fault on a certain line or a certain part of the line;

A data switch, which is connected to the distribution transformer alarm information collection unit, the FTU alarm information collection unit, the 95598 artificial platform information collection unit and the fault indicator information collection unit respectively through the power communication network;

The upper computer, which is connected to the data switch, uses the obtained fault information on the distribution network topology to locate the faulty component, and displays the positioning result.

The distribution transformer alarm information collection unit includes a distribution transformer monitoring terminal module, which collects and controls distribution transformer information in real time.

The information of the electric transformer includes voltage, current and power parameters of the electric transformer.

The first range of the fault area is a number of blocks including distribution transformer alarm information.

The FTU alarm information collection unit includes a feeder terminal module, which is arranged on an outdoor feeder, and a transmitter is also arranged in the feeder terminal module.

The second range of the fault area is a certain line containing FTU alarm information and a certain block around the line.

The 95598 manual platform information collection unit includes a 95598 manual platform information collection module, a control module and a delivery module, the 95598 manual platform information collection module collects 95598 manual platform information and transmits it to the control unit, and the control module obtains 95598 manual platform information Then send it to the data switch through the information delivery module.

The third range of the fault area is a certain line containing manual alarm information or a certain cell containing manual alarm information.

The fault indicator information collection unit includes a fault indicator and a sensor, and the sensor detects the current in the power supply line in real time.

The upper computer is connected with the data switch through the data bus.

The beneficial effects of the utility model are:

(1) Since the information collection equipment is exposed outdoors all the year round and the operating environment is poor, some information cannot be collected. The utility model uses four information collection systems to collect fault data, which increases the fault tolerance of the positioning device;

(2) Locate distribution network faults through multiple data sources. If a certain type of data cannot reach the data acquisition end due to transmission errors or line damage, other data can be used to locate the fault, which improves the utilization of fault information. rate, ensuring the reliability of fault location;

(3) After the fault, a preliminary analysis can be given on the cause of the fault and the degree of fault impact. The analysis results can assist the operator to establish a timely and effective fault repair strategy for the distribution network and improve the reliability of the power supply of the distribution network.

Description of drawings

Fig. 1 is the structural representation of the grid fault automatic location device of the present utility model;

Fig. 2 is a schematic diagram of the positioning ranges of the four collection systems of the present invention.

Among them, 1. Distribution transformer alarm information collection unit; 2. FTU alarm information collection unit; 3. 95598 artificial platform information collection unit; 4. Fault indicator information collection unit; 5. Power communication network; 6. Data switch; 7. Data bus; 8. Host computer; 9. Distribution transformer alarm information to delineate fault areas; 10. FTU alarm information to delineate fault areas; 11. 95598 manual station information to delineate fault areas; 12. Fault indicator information to delineate fault areas .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, the multi-information fusion-based power grid fault automatic location device of the present invention includes distribution transformer alarm information collection unit 1, FTU alarm information collection system 2, 95598 artificial platform information collection unit 3 and fault indicator information collection Unit 4, the distribution transformer alarm information collection unit 1, the FTU alarm information collection system 2, the 95598 manual platform information collection unit 3 and the fault indicator information collection unit 4 are respectively connected to the data switch 6 through the power communication network 5; the data The switch 6 is connected with the upper computer 8 through the data bus 7 .

Among them, the distribution transformer alarm information collection unit 1 is responsible for collecting the voltage, current and power parameters of the distribution transformer. When a fault occurs in a certain area, the downstream distribution transformer voltage and power parameters become zero, and then generate alarm information. The area containing the distribution transformer alarm information constitutes the first range for judging the fault area, usually including several blocks.

The FTU alarm information collection unit 2 is responsible for collecting FTU alarm information. The FTU is usually connected to the switch on the column of a certain line. When the FTU detects a fault current, it will trip the switch on the column and send out an alarm message; therefore, through the FTU alarm information The fault can be delineated on a certain line and within a certain block around the line.

95598 artificial station information collection unit 3 collects user alarm information. When a certain living area generates a manual alarm due to a power outage, the 95598 artificial station will locate the artificial alarm information on a certain line or a certain community, thereby further reducing the number of faulty components. scope.

The fault indicator information collection unit 4 judges the fault area by the fault indicator hanging on the line, and by the fault indicator information, the fault can be accurately positioned on a certain line, or on a certain part of the line.

The power communication network 5 collects the information of the distribution transformer alarm information collection unit 1, the FTU alarm information collection system 2, the 95598 manual platform information collection unit 3 and the fault indicator information collection unit 4 through the power communication optical cable.

The data switch 6 connects the power communication network and the data bus of the dispatching center, and acts as an intermediate bridge.

The data bus 7 is located in the dispatch center and plays the role of data collection.

The upper computer 8 locates the faulty component by using the obtained fault information on the topology of the distribution network, and displays the positioning result.

Although the positioning accuracy of the fault indicator information collection unit, 95598 manual platform information collection unit, FTU alarm information collection unit, and distribution transformer alarm information collection unit gradually decreases, that is, if the fault indicator information can be collected, the other three information You can also accurately locate the faulty component without using it. However, because the fault indicator information collection unit needs to place a fault indicator on each line, many local power bureaus have not installed it. Therefore, multiple systems need to be used together to achieve the versatility of the entire positioning device. In addition, because the information collection equipment is exposed outdoors all the year round and the operating environment is poor, some information cannot be collected. Therefore, the utility model uses four information collection systems to collect fault data, which increases the fault tolerance of the positioning device.

When a fault occurs, the fault indicator information collection unit, 95598 manual platform information collection unit, FTU alarm information collection unit and distribution transformer alarm information collection unit shown in Figure 1 will detect the alarm information. The collected alarm information will be collected to the host computer through the power communication network. The upper computer is responsible for locating the distribution network fault, and divides the alarm information into 4 priority levels, the fault indicator information collection is level 1, the 95598 manual platform information is level 2, the FTU alarm information is level 3, and the distribution transformer alarm information for level 4. The higher the priority information, the more accurate the fault location. If all the alarm information of level 1-4 is collected, since the fault indicator information has the highest priority, locate the fault according to the fault indicator information, and so on. And the positioning result is displayed on the monitor of the upper computer for the emergency repair team to repair the faulty line.

Figure 2 shows the impact of the fault indicator information collection unit, 95598 artificial platform information collection unit, FTU alarm information collection unit, and distribution transformer alarm information collection unit on the accuracy of distribution network fault location. It can be seen from Figure 2 that all the alarm information of levels 1-4 has been collected. Since the fault indicator information has the highest priority, the fault location is divided according to the fault indicator information, and the fault areas are divided into distribution transformers from large to small. Fault area 9 is defined by alarm information, fault area 10 is defined by FTU alarm information, fault area 11 is defined by 95598 manual information, and fault area 12 is defined by fault indicator information. Among them, the fault indicator information is the most accurate for fault location, and the distribution transformer alarm information is the worst for fault location accuracy.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (10)

1. the electric network fault automatic positioning equipment based on Multi-information acquisition, it is characterized in that, comprising: distribution transforming warning message collector unit, it is responsible for the information of collecting substation transformer, when breaking down generation warning message in a certain region, this region forms first scope in failure judgement region;

FTU warning message collector unit, it collects FTU warning message in the first scope of fault zone, fault zone is dwindled into the second scope;

95598 manual board information collection unit, it is in the second scope of fault zone, collects the warning message of electricity consumption user, fault zone is dwindled into the 3rd scope;

Fault detector information collection unit, it collects the failure message within the scope of this in the 3rd scope of fault zone, fault is positioned at accurately on certain circuit or in certain part of circuit;

Data switching exchane, it is connected with fault detector information collection unit with described distribution transforming warning message collector unit, FTU warning message collector unit, 95598 manual board information collection unit respectively by power telecom network;

Host computer, it is connected with data switching exchane, power distribution network topology utilizes the failure message of acquisition carry out localizing faults element, and is shown by positioning result.

2. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, described distribution transforming warning message collector unit, comprise distribution transformer monitoring terminal module, it carries out Real-time Collection and control to the information of substation transformer.

3. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, is characterized in that, the information of described piezoelectric transformer, comprises the voltage of piezoelectric transformer, electric current and power parameter.

4. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, the first scope of described fault zone is several blocks including substation transformer warning message.

5. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, described FTU warning message collector unit, comprises line feed terminals module, it is placed on outdoor feeder line, is also provided with transmitter in described line feed terminals module.

6. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, the second scope of described fault zone is include certain circuit of FTU warning message and certain block of this circuit periphery.

7. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, described 95598 manual board information collection unit, comprise 95598 manual board information acquisition modules, control module and issue module, described 95598 manual board information acquisition modules gather 95598 manual board information and are sent to control module, and control module issues module by information after obtaining 95598 manual board information and is sent to data switching exchane.

8. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, the 3rd scope of described fault zone is include certain circuit of artificial warning message or include certain community of artificial warning message.

9. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, described fault detector information collection unit, comprises fault detector and sensor, and described sensor detects electric current in supply line in real time.

10. a kind of electric network fault automatic positioning equipment based on Multi-information acquisition as claimed in claim 1, it is characterized in that, described host computer is connected with data switching exchane by data bus.