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Precise multi-dimensional material linkage utilization method based on Internet of Things in power system

A technology of power system and Internet of Things, applied in the field of material data, can solve the problems of inability to confirm whether components meet the replacement standards, inability to purchase directly, waste of resources, etc.

Active Publication Date: 2021-09-24
STATE GRID ZHEJIANG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the components in secondary equipment are non-standard parts and cannot be directly purchased in the market
However, in the prior art, idle components cannot be removed from the secondary equipment in use for maintenance.
This results in a huge waste of resources
[0004] Even if the functional components can be disassembled on the existing equipment, there are three problems that need to be solved urgently in this process: 1. When a functional component needs to be replaced, the operator does not know where else to replace it except the warehouse. Replacement functional components are available
2. Even if you know that there are replaceable functional components in the familiar range, it is impossible to determine whether this functional component can be removed and used, and it is impossible to confirm whether the component meets the replacement standards
3. Under the premise of ensuring the first two items, it cannot be guaranteed that the cost of such replacement is lower than that of purchasing new components

Method used

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  • Precise multi-dimensional material linkage utilization method based on Internet of Things in power system
  • Precise multi-dimensional material linkage utilization method based on Internet of Things in power system
  • Precise multi-dimensional material linkage utilization method based on Internet of Things in power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A network communication module in the power distribution DTU distribution network automation terminal in a switching station cannot work normally, and this problem was found during the inspection. At this time, the diagnosis needs to replace the network communication module. At this time, through the material management and control platform to obtain the geographical location of the idle functional components that meet the needs, it happens that there is another power distribution DTU distribution network automation terminal with a redundant network communication module in the switching station, and the network communication module is in an idle state. . Check the idle network communication module again, and find that it has been tested during installation and has not been actually used since then. The service life of the distribution DTU distribution network automation terminal corresponding to the network communication module is 4 years. In this way, the relative se...

Embodiment 2

[0044] An insulation switch in the central ring network cabinet of a substation was found to be overheated during three consecutive inspections, and it was judged that a fault occurred and needed to be replaced. There are no unused spare isolating switches in the database that can be replaced. There is also no limited isolation switch in the certain substation. Therefore, we can only find whether there is an insulating switch that can be used among the insulating switches that have been used and are now idle in the nearby work area. The definition of the nearby work area is to choose within the range where the calculated cost of replacement and logistics is lower than the cost of newly purchasing the functional component.

[0045] Such as image 3 , Figure 4 As shown, in order to obtain the sample points of the data set scanned according to the distance order from the database, first take p0(3,3) and define it as the core point.

[0046] 1) Define the neighborhood of p0 a...

Embodiment 3

[0054] Example 3: In the substation described in Example 2, it was found that another middle ring network cabinet had an insulating switch that failed, and the purchased service life of the insulating switch was 5 years. At this time, take p0'(5,5) as the core point and continue to scan the sample points of the data set sequentially.

[0055] 1) Calculate the neighborhood of p0’, and calculate the distance from each point to p0’, such as d(p0’,p12)=sqrt(1+0)=1.

[0056] 2) Define the neighborhood of p0' as 1.8, and set MinPts() to MinPts(3). Since the functional component is used for a long time, a large range can be opened in the selection range of the relative remaining life.

[0057] 3) According to the distance from each sample point to p0’, obtain the required set of object points {p0’, p9, p10, p12}.

[0058] 4) During the calculation, it is found that p9 is already located in cluster C1, so p9 is skipped, and finally the object point set {p0’,p10,p12} meeting the requ...

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Abstract

In order to overcome the problem of high cost and low efficiency of secondary equipment failure maintenance in the prior art, the present invention provides a precise multi-dimensional material linkage utilization method based on the Internet of Things in the power system, which finely splits the secondary equipment of power, and for the operation process The components in the secondary equipment are separately managed and controlled, and the functional components that have been idle for a long time and still have a long service life are identified and displayed on the material management platform. If necessary, the functional components are removed and provided to other When using the equipment, ensure that the disassembled functional components can at least meet the basic performance requirements. On the premise of ensuring the performance of functional components, the cost of replacing functional components is quantified, compared with the cost of purchasing new accessories, and finally the optimal solution is proposed. The whole process of the invention ensures fine management of materials, makes full use of purchased and idle equipment functional components, and reduces the cost of equipment maintenance.

Description

technical field [0001] The invention relates to the technical field of materials dataization, and in particular to a precise multi-dimensional material linkage utilization method based on the Internet of Things in a power system. Background technique [0002] Power secondary equipment is an auxiliary equipment for monitoring, measuring, controlling, protecting and regulating the primary equipment in the power system. That is, equipment that is not directly connected to electrical energy. It has a wide range of applications, and the cost of updating and maintaining is high. Although the asset department is responsible for the procurement and asset management of secondary equipment in the prior art, since the asset department of a large enterprise is not a technical staff, it can only purchase, update, and scrap operations according to the requirements of the business department. It is impossible to independently determine whether there are still exploitable components in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/00G06Q10/06G06Q50/06
CPCG06Q10/0631G06Q10/20G06Q50/06
Inventor 马宇辉李明谭云燕刘畅王婧应学斌楼伟杰葛军萍高瞻陈瑜丁宏琳蒋晓华吴健超吴建锋
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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