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Power distribution network fault detection and positioning analysis system

A technology of distribution network fault and analysis system, applied in the field of distribution network, can solve the problems of normal power consumption of low-voltage residential users and many fault repairs, so as to reduce the workload of inspection, objective and intelligent monitoring, and high efficiency. Effect

Inactive Publication Date: 2019-03-12
安徽网华信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the peak summer season every year, the electricity load of residents increases sharply, and there are many emergency repairs. The normal power consumption of low-voltage residential users has a great impact

Method used

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  • Power distribution network fault detection and positioning analysis system
  • Power distribution network fault detection and positioning analysis system
  • Power distribution network fault detection and positioning analysis system

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-4 As shown, the distribution network fault detection and location analysis system according to the embodiment of the present invention includes a monitoring data collection module 1, a fault detection and location module 2, a monitoring module 3 and a mobile terminal unit 4, and the monitoring data collection module 1 communicates The network 5 is connected with the fault detection and positioning module 2, and the fault detection and positioning module 2 is respectively connected with the monitoring module 3 and the mobile terminal unit 4 through the GPRS wireless communication module 7;

[0028] Wherein, the monitoring data acquisition module 1 includes a current transformer 8, an arc-shaped iron core current sensor 9, a three-phase fault signature generator 10, a photoelectric conversion unit 11, an information acquisition unit 12, a central data processing unit 13, Data analysis unit 14 and line selection analysis module 15, the fault detection and...

Embodiment 2

[0031] Such as Figure 1-2 As shown, the security environment intelligent module 28 is used to provide multiple sets of point-to-point high-speed optical fiber communication interfaces, through the rapid exchange of status and fault information between adjacent protection modules, quickly locate and isolate faults in the distribution network operation line, and ensure power distribution network security.

[0032] Such as figure 2 Shown, the frequency of current signal and voltage signal, amplitude, phase and the time sequence of change; And compare the simultaneity of each three-phase fault characteristic generator, determine that described three-phase fault characteristic generator 10 takes place when all consistent The simulated fault signal is correct.

[0033] Such as figure 2As shown, the photoelectric conversion unit 11 is used to convert the acquired electrical signal into an optical signal, and store and send the converted optical information.

[0034] Such as ...

Embodiment 3

[0036] Such as image 3 As shown, the substation operating environment state monitoring module 29 includes a GPRS communication data receiving and sending front-end processor 33 connected in sequence, a line selection device for fault grounding of distribution network lines, a line selection analysis module 34 and a data analysis and processing module 35 .

[0037] Such as Figure 4 As shown, the monitoring electrical information collection system 26 includes a device status display unit 36 ​​and a fault location display unit 6 connected in sequence, and the device status display unit 36 ​​is used to display the health status of the device in real time; the fault location The display unit 6 is used to display the specific location of the equipment in the fault state.

[0038] Such as figure 2 As shown, the information collection unit 12 uses an ARM chip to analyze and process the data information obtained by the information collection unit 12, and communicate with the backg...

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Abstract

The invention discloses a power distribution network fault detection and positioning analysis system. The system comprises a monitoring data collecting module, a fault detection positioning module, amonitoring module and a mobile terminal unit; the monitoring data collecting module is connected with the fault detection positioning module through a communication network, the fault detection positioning module is connected with the fault detection positioning module through a cable, and the fault detection positioning module is connected with the monitoring module and the mobile terminal unit through a GPRS wireless communication module. The system has the advantages that a big polling worker can perform rapid on-site troubleshooting and fault removal, a mobile phone of a line polling worker is used, by means of mobile phone background software of the polling worker, the background software can obtain related information for fault removal, rapid fault recovery and power supply are facilitated, real-time and objective intelligent monitoring, evaluation and fault positioning can be performed on the health state of a power distribution network main device, the automatic degree is high,and the efficiency is high.

Description

technical field [0001] The invention relates to the field of distribution networks, in particular to a distribution network fault detection and location analysis system. Background technique [0002] During the peak summer season every year, the electricity load of residents increases sharply, and there are many emergency repairs. The normal power consumption of low-voltage residential users has a great impact. When power supply reliability has become an important service indicator for power companies, how to quickly locate fault points, eliminate faults, quickly restore residents' power supply, and reduce residents' power outage time is related to the power company's commitment to society and the practice of corporate values. [0003] In some fault situations, the role of residential properties and outsourcing engineering teams is to rule out the possible location of the fault point. If a set of fault rapid location method or system for low-voltage distribution network c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/086Y04S10/52
Inventor 吴涛
Owner 安徽网华信息科技有限公司
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