Multi-user electricity utilization information acquisition system

Abstract

A multi-user electricity utilization information acquisition system comprises an acquisition master station, the acquisition master station is in communication connection with an acquisition end, and the acquisition end comprises an intelligent fusion terminal in communication connection with the acquisition master station, and a transformer area general meter and a plurality of multifunctional meters which are connected with the intelligent fusion terminal; the input ends of the intelligent fusion terminal and the transformer area master meter are connected to the wire outlet end of the transformer area master switch, the wire inlet end of the transformer area master switch is connected with the transformer, the wire outlet end of the transformer area master switch is connected with the plurality of low-voltage branch switches and the intelligent capacitor, and the multifunctional instrument is arranged corresponding to the low-voltage branch switches and is connected to the wire outlet ends of the low-voltage branch switches; a single low-voltage branch switch is connected to a secondary main switch, the wire outlet end of the secondary main switch is connected with a plurality of secondary branch switches, the secondary branch switches are connected to a user meter box through low-voltage switches, and the user meter box is connected to a user. After the multifunctional instrument is installed, the multifunctional instrument and the intelligent fusion terminal realize full coverage of a distribution network area. Acquisition of minute-level operation data of five levels including a transformer, a low-voltage main switch, a branch switch, a low-voltage cable branch box and a meter can be realized, and full information perception of each level from a distribution transformer to a client is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity consumption information collection, in particular to a multi-user electricity consumption information collection system. Background Art

[0002] In order to facilitate the collection, processing and real-time monitoring of end-user electricity consumption data, the State Grid has been promoting the construction of a multi-user electricity consumption information collection system. However, in the existing system, the substation can only realize data collection at three levels of "transformer → low-voltage main switch → meter", which cannot achieve full coverage, and cannot realize full information perception from distribution transformers to customers at all levels. Therefore, it is unable to provide strong basic data support when conducting low-voltage fault analysis, line loss analysis, low (over) voltage analysis, and three-phase imbalance analysis. Utility Model Content

[0003] In order to solve the above-mentioned problem that the multi-user electricity consumption information collection data cannot fully cover the whole process, the utility model provides a multi-user electricity consumption information collection system.

[0004] The technical solution of this utility model is as follows:

[0005] A multi-user electricity consumption information collection system includes a collection main station, the collection main station is communicatively connected to a collection terminal, the collection terminal includes an intelligent fusion terminal communicatively connected to the collection main station, and a substation master meter and a plurality of multifunctional meters connected to the intelligent fusion terminal;

[0006] The input end of the intelligent fusion terminal and the area master meter is connected to the outgoing end of the area master switch, and the incoming end of the area master switch is connected to the transformer, and the outgoing end is connected to a plurality of low-voltage branch switches and intelligent capacitors, and the multifunctional meter is arranged corresponding to the low-voltage branch switch and connected to the outgoing end of the low-voltage branch switch;

[0007] A single low-voltage branch switch is connected to a secondary main switch, a plurality of secondary branch switches are connected to the outlet of the secondary main switch, and each of the secondary branch switches is connected to a user meter box through a low-voltage switch, and the user meter box is connected to the user.

[0008] By setting up a multi-function instrument to connect the secondary branch switch and connect it to the intelligent fusion terminal, other required basic data can be supplemented, that is, more levels of operation data collection can be achieved.

[0009] The model of the multi-function instrument is YS-525DT series multi-function instrument.

[0010] In order to enable the low-voltage switch to collect electricity consumption information of more users, a single low-voltage switch can be connected to the incoming terminals of multiple user meter boxes at the same time.

[0011] The specific structure of the above-mentioned acquisition main station is that the acquisition main station includes an acquisition front-end machine connected to the acquisition terminal, the output end of the acquisition front-end machine is connected to the database server and the application server, and the application server is connected to the workstation.

[0012] In order to achieve encryption, the acquisition front-end is provided with an encryption machine.

[0013] The specific structural design of the above database server is that the database server and the application server are bidirectionally connected, and the data server includes a primary database server and a secondary database server.

[0014] In order to avoid data loss, the database server also includes a backup server.

[0015] The communication method in the above structure is that the intelligent fusion terminal adopts RS485 communication.

[0016] As a preferred solution, the multifunctional meter supports three-phase three-wire and three-phase four-wire.

[0017] The communication protocol of the multifunctional instrument is that the multifunctional instrument adopts the Modbus communication protocol.

[0018] The beneficial effect of the utility model is that the utility model is a multi-user electricity consumption information collection system. On the basis of the existing system, a multi-function meter is added and connected to each secondary switch, and then the full coverage of the distribution network area is achieved through the intelligent fusion terminal. The above system can realize the five-level minute-level operation data collection of "transformer → low-voltage main switch → branch switch → low-voltage cable junction box → meter", realizing full information perception from distribution transformer to customer levels, and can provide basic data support for low-voltage fault analysis, line loss analysis, low (over) voltage analysis, and three-phase imbalance analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0020] In the attached picture:

[0021] Figure 1 This is a schematic diagram of the wiring structure of the utility model; DETAILED DESCRIPTION

[0022] like Figure 1 A multi-user electricity consumption information collection system shown includes a collection main station, which is used to collect various information and store various information data. The above-mentioned collection main station is an existing conventional design, so the specific principle is not repeated here.

[0023] And the specific structure of the above-mentioned collection main station is that the collection main station includes a collection front-end machine connected to the collection end, the collection front-end machine is used to transmit the collection instructions transmitted by the workstation, and in order to achieve encryption and protect data, the collection front-end machine is provided with an encryption machine. Afterwards, the output end of the collection front-end machine is connected to the database server and the application server, and the application server is connected to the workstation. The function of the above-mentioned database server is to store data, and it can send electricity consumption data information to the application server and then transmit it to the workstation.

[0024] In order to avoid the problem that the database server cannot be used after a failure, the specific structure of the database server is designed as follows: the database server and the application server are connected in a two-way communication, and the data server includes a main database server and a secondary database server. Under normal circumstances, the main database server works, and when the main database server fails to work properly, the secondary database server replaces the main database server to work to ensure that the acquisition master station can work properly. When both of the above servers fail to work, they need to be shut down for maintenance.

[0025] At the same time, in view of the above situation, in order to avoid data loss, the database server also includes a backup server. The backup server can synchronously store all data information and call data information according to demand when there is a need.

[0026] Afterwards, different from the existing structure, which is also the design focus of this patent, the collection main station is connected to the collection end, and the collection end includes an intelligent fusion terminal connected to the collection main station and a substation main meter and multiple multi-function instruments connected to the intelligent fusion terminal. The existing conventional system only sets up the substation main meter and connects the substation main switch, but the data that can be collected by the above method is limited and cannot provide strong data support in various analyses. The intelligent fusion terminal and multi-function instrument added in this patent can effectively solve the above problems.

[0027] The specific design method is that the input end of the intelligent fusion terminal and the substation master meter is connected to the outgoing end of the substation master switch, and the incoming end of the substation master switch is connected to the transformer, and the outgoing end is connected to multiple low-voltage branch switches and intelligent capacitors, and the multi-function meter is arranged corresponding to the low-voltage branch switch and connected to the outgoing end of the low-voltage branch switch;

[0028] Afterwards, a single low-voltage branch switch is connected to a secondary main switch, and a plurality of secondary branch switches are connected to the outlet end of the secondary main switch. The secondary branch switches are all connected to the user meter box through the low-voltage switch, and the user meter box is connected to the user. In order to enable the low-voltage switch to collect electricity consumption information of more users, a single low-voltage switch can be connected to the incoming ends of multiple user meter boxes at the same time.

[0029] Under normal circumstances, there is no dedicated detection instrument behind the low-voltage branch switch. However, the present invention, by providing a multifunctional instrument, can connect with it and count various data information, thereby providing data support in various system analyses.

[0030] In other words, add a multifunctional instrument and connect each secondary switch, and then achieve full coverage of the distribution network area through the intelligent fusion terminal. The above system can realize minute-level operation data collection at five levels of "transformer → low-voltage main switch → branch switch → low-voltage cable junction box → meter", realizing full information perception from distribution transformer to customer levels, and can provide basic data support for low-voltage fault analysis, line loss analysis, low (over) voltage analysis, and three-phase imbalance analysis.

[0031] Moreover, the above-mentioned multifunctional instruments and intelligent fusion terminals are all products of our company and can play their due roles in various practical tests.

[0032] And in the above structure, the model of the multifunctional instrument is, and the multifunctional instrument is a YS-525DT series multifunctional instrument.

[0033] Moreover, the communication mode in the above structure is that the intelligent fusion terminal adopts RS485 communication. And in order to facilitate various working environments, the multifunctional instrument supports three-phase three-wire and three-phase four-wire. Finally, it should be noted that the communication protocol of the above multifunctional instrument is that the multifunctional instrument adopts Modbus communication protocol.

Claims

1. A multi-user electricity consumption information collection system, characterized in that: It includes a collection main station, the collection main station is connected to a collection terminal in communication, and the collection terminal includes an intelligent fusion terminal connected to the collection main station in communication, and a station area master meter and a plurality of multifunctional instruments connected to the intelligent fusion terminal; The input end of the intelligent fusion terminal and the area master meter is connected to the outgoing end of the area master switch, and the incoming end of the area master switch is connected to the transformer, and the outgoing end is connected to a plurality of low-voltage branch switches and intelligent capacitors, and the multifunctional meter is arranged corresponding to the low-voltage branch switch and connected to the outgoing end of the low-voltage branch switch; A single low-voltage branch switch is connected to a secondary main switch, a plurality of secondary branch switches are connected to the outlet of the secondary main switch, and each of the secondary branch switches is connected to a user meter box through a low-voltage switch, and the user meter box is connected to the user.

2. A multi-user electricity consumption information collection system according to claim 1, characterized in that: The multifunctional instrument is a YS-525DT series multifunctional instrument.

3. A multi-user electricity consumption information collection system according to claim 1, characterized in that: A single low-voltage switch can be connected to the incoming terminals of multiple user meter boxes at the same time.

4. A multi-user electricity consumption information collection system according to claim 1, characterized in that: The acquisition main station includes an acquisition front-end processor connected to the acquisition terminal, the output terminal of the acquisition front-end processor is connected to a database server and an application server, and the application server is connected to a workstation.

5. A multi-user electricity consumption information collection system according to claim 4, characterized in that: The collection front-end machine is provided with an encryption machine.

6. A multi-user electricity consumption information collection system according to claim 4, characterized in that: The database server and the application server are bidirectionally connected, and the data server includes a primary database server and a secondary database server.

7. A multi-user electricity consumption information collection system according to claim 4, characterized in that: The database server also includes a backup server.

8. A multi-user electricity consumption information collection system according to claim 1, characterized in that: The intelligent fusion terminal adopts RS485 communication.

9. A multi-user electricity consumption information collection system according to claim 2, characterized in that: The multifunctional meter supports three-phase three-wire and three-phase four-wire.

10. A multi-user electricity consumption information collection system according to claim 2, characterized in that: The multifunctional instrument adopts Modbus communication protocol.

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