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Transient fault and defect discharge fault simulation test platform and data analysis method

Active Publication Date: 2022-07-12
智联新能电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this stage, for the monitoring of line hidden dangers, a new line hidden danger monitoring system based on traveling wave monitoring has emerged in the transmission network. The precise location of hidden danger points can be realized by monitoring the discharge traveling wave signal. There is a large difference between them, and the defect monitoring system suitable for the transmission network cannot be applied to the distribution network line. Research on waveform characteristics, and establish a distribution network defect monitoring system based on this. At present, experimental research on distribution network faults is usually carried out jointly on the basis of real-type lines, which is time-consuming and laborious, and requires cooperation with multiple parties to carry out work. At the same time, there are no relevant projects and technical research results for the simulation test of transient faults and defect discharges in the distribution network

Method used

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  • Transient fault and defect discharge fault simulation test platform and data analysis method
  • Transient fault and defect discharge fault simulation test platform and data analysis method
  • Transient fault and defect discharge fault simulation test platform and data analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] like figure 1 , figure 2 As shown, a transient fault and defect discharge fault simulation test platform, including:

[0069] High-voltage side simulated wire 1, first insulating member 2, landing gear 3, low-voltage side simulated wire 4, second insulating member 5, power distribution network power supply 6, two uniform wires 7 and test sample 8;

[0070] The high-voltage side simulated wire 1 is erected on the landing gear 3 through the first insulating member 2, and the first insulating member 2 is used to support the high-voltage side simulated wire 1, wherein the first insulating member 2 can select multiple insulators;

[0071] The low-voltage side simulated wire 4 is suspended above the high-voltage side simulated wire 1 through the second insulating member 5, and the second insulating member 5 can choose an insulating rope;

[0072] The clearance distance between the high-voltage side analog wire 1 and the low-voltage side analog wire 4 can be adjusted throug...

Embodiment 2

[0078] like figure 2 As shown, this embodiment is a further improvement made on the basis of Embodiment 1, and the details are as follows:

[0079] The power distribution network power supply 6 is simulated by the neutral point grounding module 610 and the three-phase AC test transformer power supply 620. The three-phase AC test transformer power source 620 generates AC voltages of different phases, and is equipped with the neutral point grounding module 610 to simulate different grounding modes. The distribution network power supply 6.

Embodiment 3

[0081] This embodiment is a further improvement carried out on the basis of Embodiment 2, as follows:

[0082] A remote control system is installed on the neutral point grounding module 610, and there is a remote control type high-voltage switch. The grounding scheme of the neutral point of the three-phase AC test transformer power supply during the test can be selected remotely through the remote control.

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Abstract

The invention relates to a transient fault and defect discharge fault simulation test platform, comprising: a high-voltage side simulated wire, which is erected on a landing gear through a first insulating member; a low-voltage side simulated wire, which is suspended on the high-voltage side through a second insulating member Above the simulation wire; the power distribution network power supply, which is connected to the high-voltage side simulation wire; two uniform wires are connected to both ends of the low-voltage side simulation wire, and each uniform wire is grounded; the test sample is arranged in Between the high voltage side analog wire and the low voltage side analog wire. The beneficial effects are as follows: the test platform adopts the low-voltage side simulated wire to be suspended, and the low-voltage side simulated wire is grounded through two uniformly textured wires. The impedance transition makes the wave impedance of the entire test loop continuous, which can effectively avoid the measurement error / distortion caused by the traveling wave refraction phenomenon.

Description

technical field [0001] The invention relates to the field of power distribution networks, in particular to a simulation test platform for transient faults and defective discharge faults and a data analysis method. Background technique [0002] The power distribution network is mostly located in the urban economic circle and is an important part of the power grid that directly faces users. Its safe and reliable operation has always been the focus of power grid operation and maintenance. Distribution network line faults are usually divided into permanent metal ground faults, transient faults and defect discharge faults. Among them, distribution network metal ground faults can be effectively monitored through distribution network automated feeder terminals or distribution network fault indicators. There is currently no effective means to monitor sexual faults and defect discharge faults. [0003] At this stage, for the monitoring of line hidden dangers, a new line hidden dange...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/086G01R31/088Y04S10/52
Inventor 唐锋潘松淡汉民刘德平彭洋殷志江
Owner 智联新能电力科技有限公司