Power supply side perturbation-based power grid user and transformer relation online dynamic supervision system and method

Abstract

The invention relates to a power supply side perturbation-based power grid user and transformer relation on-line dynamic supervision method, which comprises an electric quantity perturbator, an electric power meter reading system and an intelligent identification system, wherein the electric quantity perturbator is installed at a transformer end of a power supply network and used for performing controlled perturbation on the electric quantity parameter change of an output power supply; the electric power meter reading system is used for remotely observing the data change of the user electric meter end; and the intelligent identification system is used for intelligently identifying the correlation between the electric quantity parameters of the user electric meter side and the electric quantity parameters subjected to perturbation of the power supply side of the transformer end. With the power supply side perturbation-based power grid user and transformer relationship online dynamic supervision system and method, online dynamic intelligent monitoring can be realized; according to the device and the method, only one electric quantity perturbator needs to be installed on the power supply side of the power grid transformer, an existing electric power meter reading system of an electric power company is utilized, no device needs to be installed on the power utilization side, and theaim of dynamically monitoring the household-transformer relationship online can be achieved through intelligent identification software.

Description

technical field [0001] The invention relates to the field of power monitoring, in particular to the field of substation monitoring, and specifically refers to an online dynamic monitoring system and method for the relationship between power grid users and transformers based on power supply side perturbation. Background technique [0002] The electric energy produced by the power plant in the power system is supplied to the user through the transmission, transformation and power supply links of the power grid. In the process of transmitting and distributing electrical energy, each component in the power grid (such as transformers, transmission lines, compensation and adjustment equipment, and measurement and protection devices, etc.) consumes a certain amount of electrical energy. [0003] A low-voltage station area refers to the power supply range or area of ​​a distribution transformer. The scope of line loss calculation in the low-voltage station area starts from the watt...

AI Technical Summary

Problems solved by technology

[0004] In recent years, with the continuous progress of urbanization, the number of residential areas has continued to increase, the power load has increased, and the number of newly-added station areas has increased. Many problems have been exposed in management, such as some low-voltage households breaching the contract to use electricity, privately setting up This will not only cause the meter reader to be unable to accurately determine which transformer the electric energy meter of the household belongs to during the meter reading process, but also affect the completion of the line loss index in the station area

At the same time, due to the ambiguity of the ownership of customer files, disputes over measurement and creditor's rights among customers have been triggered, which has affected the image of power supply companies and increased the operating risks of power supply companies. At the same time, the corporate benefits of power supply companies have also been affected to a certain extent.

At the same time, due to the frequent changes caused by the construction and development of the power grid in recent years (such as relocation, expansion, cutover, and distribution of points), the increase in the number of power users, and the change of users' electricity addresses, the relationship between user stations and districts has changed.

However, due to limited conditions, such as line intersections, buried lines, etc., it is difficult to update the affiliation information of user meters and household substations in a timely manner, which affects the accuracy of basic data of the power grid.

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