CN202172306U - Power distribution network transformer running state graphical supervision system - Google Patents

Abstract

The utility model discloses a graphical monitoring system for the operation state of a distribution network transformer, which is composed of a collector for collecting data from metering terminal equipment, a central control computer for receiving data and displaying the data in an image display mode, and a connecting line. A software control system is installed in the control computer to control the action of the metering terminal equipment. The central control calculation is equipped with a display screen. The WEB window page displayed on the display screen of the central control computer is graphical information displayed in a graphical manner; the graphical information is provided by the display The geographical figure of the location of the distribution transformer is composed of different color blocks to show the current status of the distribution transformer. The colors of different color blocks show the level index of the load rate of different distribution transformers; according to the level index of the load rate of each distribution transformer And the corresponding status color, the software control system and the central control computer classify and arrange the distribution transformers in different levels.

Description

Graphical Monitoring System of Transformer Operation Status in Distribution Network

technical field

The utility model relates to a graphical monitoring system for the operation state of distribution network transformers, in particular to a system which utilizes a multi-dimensional information display module to graphically display the operation state of distribution network transformers in a WEB window and monitors the state of distribution transformers . the

Background technique

Power supply enterprises are one of the important sectors of the national economy. With the rapid development of the national economy and the continuous improvement of people's living standards, the demand for electricity in our country is also increasing. In recent years, in the power system, the remote monitoring and control technology of substations, high-voltage transmission lines and other main network equipment has changed from the initial PTU equipment, SCADA (real-time data acquisition) system to the current integrated automation system, EMS (energy management), equipment quality And system functions are quite mature. In terms of low-voltage distribution network, because the number of low-voltage distribution lines, distribution equipment, load equipment, etc. is much larger than that of the main network, and the structure is more intricate, there is still no distribution network monitoring and control system with mature technology and stable performance. Widely used, or limited to local pilot applications. In particular, the monitoring technology for the operating status of distribution network transformers is not fully mature. The current inspection of the operating status of distribution network transformers is mainly through manual and regular on-site load measurement. Due to the large number of distribution network transformers, it is impossible to carry out all-weather inspections. Data monitoring records; and a distribution transformer only collects data for one day, which has low reference value and poor accuracy. Vulnerable to weather. The existing monitoring method can only obtain the total load capacity and power consumption information of each city, township, and power supply station through regular reports, but it cannot understand the current load concentration in a certain area intuitively in real time, where the power consumption is The load is high, and it is necessary to send personnel to the site to conduct a long-term investigation and then provide a preliminary assessment report, which is time-consuming and the data is not accurate enough. the

In view of the above situation, the applicant is committed to how to display the operating status of the distribution network transformer in real time, and monitor the distribution transformer, so as to accurately, quickly and real-time understand the usage of the distribution transformer in a certain area. According to the electricity load situation, the electricity consumption in the area is classified and graded. the

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a distribution network transformer operating state monitoring system that is easy to use, directly and intuitively displayed, and can quickly and accurately display power consumption conditions. the

The technical solution of the utility model to solve the prior art is: a graphical monitoring system for the operation status of the distribution network transformer, which is composed of a collector for data collection of metering terminal equipment, a central control computer for receiving data and displaying data in an image display mode, and Composed of connection lines, the central control computer is installed with a software control system to control the action of the metering terminal equipment, the central control computer is provided with a display screen, and the WEB window page displayed on the display screen of the central control computer is graphical information displayed in a graphical manner; The graphical information of the distribution transformer is composed of geographic graphics showing the location of the distribution transformer and different color blocks to show the current status of the distribution transformer. The colors of different color blocks show the load rate index of different distribution transformers; Load rate level index and corresponding state color, software control system and central control computer classify and classify distribution transformers. the

As a further design of the aforementioned technical scheme: the different color blocks shown in the WEB window of the display screen of the central control computer are composed of at least one of blue, green, yellow, red and black; the blue represents the distribution transformer The load index is load rate ≤ 40%, which means that there is no load access restriction. At this time, the distribution transformer has not yet reached the economical operation state. Users are welcome to report for installation and use of electricity, and users are encouraged to use electricity; green means that the load index of the distribution transformer is 40 < load rate ≤ 60%, it means that the distribution transformer is in the economical operation range, there is no load access restriction, and users are still welcome to apply for power consumption; yellow means that the load index of the distribution transformer is 60% < load rate ≤ 80% , indicating that the distribution transformer is still in the range of economical operation, but attention should be paid to properly controlling the access load capacity, and users can continue to report for installation and power consumption; red indicates that the load index of the distribution transformer is 80% < load rate ≤ 100%, It means that the distribution transformer is at a high load level, and the load access capacity must be strictly controlled, and attention must be paid to controlling power consumption; black means that the load index of the distribution transformer is the load rate > 100%, which means that the distribution transformer has been overloaded and is not allowed When re-connected to the load, the power consumption must be strictly controlled, and the overload operation cannot be performed for a long time. It is necessary to increase the capacity or transfer the load as soon as possible, reduce the load rate of the distribution transformer to a safe value, and avoid equipment damage. the

The load rate is the ratio of the maximum load to the rated load of the distribution transformer. It is the health index of the distribution transformer operation and the load access limit index. It is used to reflect whether the distribution transformer is close to the limit operation. The higher the value, the distribution transformer The greater the load, or even overloaded operation, will cause damage to the distribution transformer. The utility model uses different color blocks to visually display the meaning of the load rate index data of each distribution transformer, referred to as "4681 rule", and uses this rule to monitor the operation status of the distribution network transformer in real time, which greatly saves on-site investigation and measurement. The workload of the load, the timely and accurate discovery of hidden dangers in the operation of the equipment, the early arrangement of the transformation plan, and the improvement of the level of equipment operation and maintenance. the

As a further design of the aforementioned technical solution: the WEB window of the display screen of the central control computer can display a list, which shows the rated load capacity, maximum load value and its appearance time, load and load capacity of each distribution transformer in a certain area. rate; and the real-time load rate of the distribution transformer of a specific user can be queried on the WEB window of the display screen, the daily load rate change data list record of the specific user, and the load rate change curve. The above functions can display detailed data records of grid power supply and user electricity consumption, depict various power parameter change curves of a certain area or a certain user, perform statistical analysis and calculation of various data and display the results in a list. The professionalism of the data Strong. the

As a further design of the aforementioned technical solution: the geographic graphics displayed on the WEB window page displayed on the display screen of the central control computer are displayed by mixing and superimposing vector graphics and image images, and the color blocks of the distribution transformer are colored by the distribution density of point objects For display, according to the density distribution, the color depth is superimposed and displayed, and the point release information is converted into a colored display of the surface area. the

The graphical monitoring system for the operation state of distribution network transformers of the utility model displays the status of distribution transformers with different color blocks, and intuitively reflects the load rate index of the corresponding distribution transformers according to the color display of the color blocks; Classify and classify distribution transformers according to the load rate status. In particular, whether the load points in a certain area are distributed or highly concentrated, whether they are concentrated in a certain section of the power supply line or the entire line is relatively average, how large is the load coverage of the line power supply, and whether the users are on the mountain, beside the road or near the river, etc. Distribution characteristic information, this monitoring method can well display these data macroscopically, effectively reduce the workload of professional analysis and calculation data screening and investigation, source location, etc., and improve analysis efficiency and accuracy. the

Description of drawings

Fig. 1 is the frame diagram of monitoring system of the present utility model;

Fig. 2 is a schematic diagram showing different color blocks in the display screen of the monitoring system of the present invention to represent the status of the distribution transformer;

Fig. 3 is a schematic diagram of a graph showing the daily load rate of distribution transformers on the display screen of the monitoring system of the present invention.

Detailed ways

Provide a best embodiment of the present utility model below in conjunction with accompanying drawing. the

Example 1

This embodiment relates to a graphical monitoring system for the operation status of distribution network transformers. As shown in FIG. The central control computer is equipped with a software control system to control the action of the metering terminal equipment. The central control computer is provided with a display screen 3. The WEB window page displayed on the display screen of the central control computer is graphical information displayed in a graphical manner; The graphic information described above is composed of geographic graphics showing the location of distribution transformers and different color blocks to show the current status of distribution transformers. The colors of different color blocks show the load rate index of different distribution transformers; according to the distribution transformers The level index of the load rate and the corresponding state color, the software control system and the central control computer classify and classify the distribution transformers.

As shown in Figure 2, the different color blocks shown in the WEB window of the display screen of the central control computer are composed of at least one of blue, green, yellow, red and black; the blue represents the load index of the distribution transformer It means that the load rate is ≤40%, which means that there is no load access restriction. At this time, the distribution transformer has not yet reached the economical operation state. Users are welcome to report for installation and use of electricity, and users are encouraged to use electricity; green means that the load index of the distribution transformer is 40<load If the ratio is ≤60%, it means that the distribution transformer is in the economic operation range, and there is no load access restriction, and users are welcome to apply for installation and power consumption; yellow means that the load index of the distribution transformer is 60%<load ratio≤80%, which means that the distribution transformer The power transformer is still in the range of economic operation, but attention should be paid to properly controlling the access load capacity, and users can continue to apply for power consumption; red means that the load index of the distribution transformer is 80% < load rate ≤ 100%, indicating that the power distribution The voltage transformer is at a high load level, and the load access capacity must be strictly controlled, and attention must be paid to the control of power consumption; black means that the load index of the distribution transformer is the load rate > 100%, indicating that the distribution transformer has been overloaded and is not allowed to be connected again The load must be strictly controlled, and it cannot be overloaded for a long time. It is necessary to increase the capacity or transfer the load as soon as possible, reduce the load rate of the distribution transformer to a safe value, and avoid equipment damage. the

The load rate is the ratio of the maximum load to the rated load of the distribution transformer. It is the health index of the distribution transformer operation and the load access limit index. It is used to reflect whether the distribution transformer is close to the limit operation. The higher the value, the distribution transformer The greater the load, or even overloaded operation, will cause damage to the distribution transformer. The utility model uses different color blocks to visually display the meaning of the load rate index data of each distribution transformer, referred to as "4681 rule", and uses this rule to monitor the operation status of the distribution network transformer in real time, which greatly saves on-site investigation and measurement. The workload of the load, the timely and accurate discovery of hidden dangers in the operation of the equipment, the early arrangement of the transformation plan, and the improvement of the level of equipment operation and maintenance. the

As shown in Figure 3, the WEB window of the display screen of the central control computer can display a list, which shows the rated load capacity, maximum load value, time of occurrence, and load rate of each distribution transformer in a certain area; On the WEB window of the display screen, query the real-time load rate of the distribution transformer of the specific user, the list record of the daily load rate change data of the specific user, and the load rate change curve. The above functions can display detailed data records of grid power supply and user electricity consumption, depict various power parameter change curves of a certain area or a certain user, perform statistical analysis and calculation of various data and display the results in a list. The professionalism of the data Strong. the

The geographical graphics displayed on the WEB window page displayed on the display screen of the central control computer are displayed by mixing and superimposing vector graphics and image images. The color blocks of distribution transformers are displayed in color with the distribution density of point objects, and the color is adjusted according to the density distribution. Depth overlay display, convert point release information into surface area color display. the

As shown in Figure 1, the different color blocks intuitively show the meaning of the load rate index data of each distribution transformer, referred to as the "4681 rule", which is used to monitor the operating status of the distribution network transformer in real time, which greatly saves on-site investigation , Measure the workload of the load, timely and accurately discover hidden dangers in the operation of the equipment, arrange the transformation plan early, and improve the level of equipment operation and maintenance. the

In addition to the implementation of the above technical solutions, any graphical monitoring method for the operation status of distribution network transformers similar to the technical solutions of the present utility model also falls within the scope of protection of the present utility model. the

Claims (1)

1. The graphical monitoring system for the operation status of distribution network transformers is characterized in that: a collector (1) for data collection of metering terminal equipment, a central control computer (2) for receiving data and displaying the data in an image display mode, and Composed of connecting wires, the central control computer is provided with a display screen (3).

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