Electric energy metering system detection equipment

Abstract

The utility model discloses electric energy metering system detection equipment, relates to the technical field of power equipment, and mainly aims to solve the problem of poor detection effectiveness of an existing electric energy metering system. The equipment comprises a detection terminal and a detection device group, and the detection terminal performs data communication with the detection device group and is used for receiving detection data of a plurality of to-be-detected units in the electric energy metering system acquired by the detection device group so as to perform equipment detection based on the detection data; the detection device group comprises a plurality of detection devices and is used for collecting detection data of a plurality of units to be detected in the electric energy metering system.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to electric energy metering system detection equipment. Background Art

[0002] With the continuous expansion of the scale of smart substation construction, the digital electric energy metering system has become the mainstream metering system with its advantages of networking of secondary equipment and standardized communication model. In order to ensure the normal use of the digital electric energy metering system, it is necessary to conduct a systematic test on it to ensure the normal use of its functions. At present, due to the separation of acquisition and operation of the digital electric energy metering system and the introduction of communication technology, the existing digital electric energy metering system usually adopts a separate detection method, that is, the function of the original electric energy meter is split into several devices such as electronic transformers, merging units and digital electric energy meters, that is, a single test is performed on each unit. However, due to the mutual coupling between the mechanisms of each unit, the various parts of the entire system are inseparable, and it is difficult to accurately detect the digital electric energy metering system with a single unit test, which will result in a large detection error, thereby reducing the effectiveness of the electric energy metering system detection. Utility Model Content

[0003] In view of this, the utility model provides an electric energy metering system detection device, the main purpose of which is to solve the problem of poor effectiveness of existing electric energy metering system detection.

[0004] According to one aspect of the utility model, there is provided an electric energy metering system detection device, characterized in that it comprises: a detection terminal, a detection device group,

[0005] The detection terminal performs data communication with the detection device group, and is used to receive detection data of a plurality of units to be detected in the electric energy metering system collected by the detection device group, so as to perform equipment detection based on the detection data;

[0006] The detection device group includes a plurality of detection devices, which are used to collect detection data of a plurality of units to be detected in the electric energy metering system.

[0007] Furthermore, the detection device group includes a first detection device, a second detection device, and a third detection device.

[0008] The first detection device performs data communication with the electronic mutual inductor in the electric energy metering system;

[0009] The second detection device performs data communication with a merging unit in the electric energy metering system;

[0010] The third detection device performs data communication with the digital electric energy meter in the electric energy metering system.

[0011] Furthermore, the first detection device is used to receive a first detection instruction and feed back the first detection data collected from the electronic transformer to the detection terminal;

[0012] The second detection device is used to receive a second detection instruction and feed back the second detection data collected by the merging unit to the detection terminal;

[0013] The third detection device is used to receive a third detection instruction and feed back the third detection data collected from the digital electric energy meter to the detection terminal.

[0014] Furthermore, the first detection device includes a voltage booster, a current booster, and an electronic transformer communication protocol converter, the voltage booster and the current booster are connected to the primary side of the electronic transformer, and the electronic transformer communication protocol converter is connected to the secondary side of the electronic transformer, and is used to send the output signal of the electronic transformer to the detection terminal.

[0015] Furthermore, the second detection device includes a programmable power source and a merging unit communication protocol converter, the programmable power source is connected to the input side of the merging unit, and the merging unit communication protocol converter is connected to the output side of the merging unit, and is used to send the output signal of the merging unit to the detection terminal.

[0016] Furthermore, the third detection device includes a message transmitter and a digital electric energy meter communication protocol converter, the message transmitter is connected to the input side of the digital electric energy meter, and the digital electric energy meter communication protocol converter is connected to the pulse output end of the electric energy meter, for sending the output signal of the digital electric energy meter to the detection terminal.

[0017] Furthermore, the detection terminal includes a message parser and an error calculator, the message parser receives output signals of the first detection device, the second detection device, and the third detection device, and the error calculator is used to perform error calculation on the detection data.

[0018] Furthermore, the data communication is a control bus using wireless communication.

[0019] By means of the above technical solution, the technical solution provided by the embodiment of the utility model has at least the following advantages:

[0020] The utility model provides an electric energy metering system detection device. Compared with the prior art, the utility model embodiment comprises: a detection terminal and a detection device group. The detection terminal performs data communication with the detection device group and is used for receiving detection data of a plurality of units to be detected in the electric energy metering system collected by the detection device group, so as to perform equipment detection based on the detection data; the detection device group comprises a plurality of detection devices, which are used for collecting the detection data of a plurality of units to be detected in the electric energy metering system, so that the electric energy metering system detection device has an overall detection function in addition to a separation test function, and does not need repeated wiring, which can effectively shorten the detection time, reduce labor costs, and improve detection efficiency, thereby improving the ability to evaluate the overall performance of a digital electric energy metering system.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of the structure of an electric energy metering system detection device provided by an embodiment of the utility model is shown;

[0024] Figure 2 A schematic diagram of the structure of a detection device group provided by an embodiment of the utility model is shown;

[0025] Figure 3 A schematic diagram of the structure of a first detection device provided by an embodiment of the utility model is shown;

[0026] Figure 4 A schematic diagram of the structure of a second detection device provided by an embodiment of the utility model is shown;

[0027] Figure 5 A schematic diagram of the structure of a third detection device provided by an embodiment of the utility model is shown;

[0028] Figure 6 A schematic diagram of the structure of a detection terminal provided by an embodiment of the utility model is shown;

[0029] Figure 7A schematic diagram of data interaction between a digital electric energy metering system and a digital electric energy metering system provided by an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0030] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0031] The utility model embodiment provides an electric energy metering system detection device, such as Figure 1 As shown, the device comprises: a detection terminal 11, a detection device group 12,

[0032] The detection terminal 11 performs data communication with the detection device group 12, and is used to receive detection data of multiple units to be detected in the electric energy metering system collected by the detection device group 12, so as to perform equipment detection based on the detection data;

[0033] The detection device group 12 includes a plurality of detection devices for collecting detection data of a plurality of units to be detected in the electric energy metering system.

[0034] In the embodiment of the utility model, the electric energy metering system is an intelligent, digital electric energy metering device used to detect and measure electric energy in the power system. Among them, the detection device group includes multiple detection devices, each detection device is used to collect detection data for multiple units to be detected in the electric energy metering system, and the multiple units to be detected may include electronic mutual inductors, merging units, and digital electric energy meters of the electric energy metering system. In addition, in the embodiment of the utility model, a control bus in a wireless communication mode can be used for data communication between the detection terminal and the detection device to achieve efficient data transmission.

[0035] It should be noted that after receiving the detection data transmitted by the detection device group, the detection terminal performs error calculation on the detection data, which can be obtained by using existing error calculation, such as (true value-reference value) / reference value, without specific limitation.

[0036] In another embodiment of the present invention, in order to further define and illustrate, as Figure 2 As shown, the detection device group 12 includes a first detection device 1201, a second detection device 1202, and a third detection device 1203.

[0037] The first detection device 1201 performs data communication with the electronic mutual inductor in the electric energy metering system;

[0038] The second detection device 1202 performs data communication with the merging unit in the electric energy metering system;

[0039] The third detection device 1203 performs data communication with the digital electric energy meter in the electric energy metering system.

[0040] In order to complete the overall detection accuracy of each unit to be detected in the electric energy metering system, in the embodiment of the utility model, the detection device group includes three detection devices, namely, a first detection device, a second detection device, and a third detection device. Among them, the first detection device communicates data with the electronic mutual inductor in the electric energy metering system, the second detection device communicates data with the merging unit in the electric energy metering system, and the third detection device communicates data with the digital electric energy meter in the electric energy metering system. The above data communications can all be carried out through wireless communication to accurately and quickly transmit the detection data.

[0041] Specifically, after the first detection device communicates data with the electronic transformer, it is used to receive the first detection instruction sent by the detection terminal, so as to start the collection of the first detection data of the electronic transformer based on the first detection instruction, and feed back the collected first detection data to the detection terminal. Correspondingly, the second detection device is used to receive the second detection instruction sent by the detection terminal, so as to start the collection of the second detection data of the merging unit based on the second detection instruction, and feed back the collected second detection data to the detection terminal. In addition, the third detection device and the digital electric energy meter are used to receive the third detection instruction sent by the detection terminal, so as to start the collection of the third detection data of the digital electric energy meter based on the third detection instruction, and feed back the collected third detection data of the digital electric energy meter to the detection terminal.

[0042] In another embodiment of the utility model, in order to further define and illustrate, in order to enable the first detection device to effectively collect the detection data of the electronic mutual inductance,

[0043] The first detection device includes a voltage booster, a current booster, and an electronic transformer communication protocol converter. The voltage booster and the current booster are connected to the primary side of the electronic transformer, and the electronic transformer communication protocol converter is connected to the secondary side of the electronic transformer, and is used to send the output signal of the electronic transformer to the detection terminal.

[0044] The detection terminal sends the first detection instruction of the electronic transformer to the first detection device through the control bus. After the first detection device receives the first detection instruction, Figure 3As shown, a current booster and a voltage booster are used to send signals to an electronic transformer, and the first detection data output by the electronic transformer is transmitted to a detection terminal through an electronic transformer communication protocol converter. Preferably, the rated current of the current booster is 600A, the rated voltage of the voltage booster is 110kV, the electronic transformer communication protocol converter is compatible with the communication protocol specified in the IEC 60044-8 standard, and the control bus is a wireless communication method.

[0045] In another embodiment of the utility model, in order to further define and illustrate, in order to enable the second detection device to effectively collect the detection data of the merging unit,

[0046] The second detection device includes a programmable power source and a merging unit communication protocol converter, the programmable power source is connected to the input side of the merging unit, and the merging unit communication protocol converter is connected to the output side of the merging unit, and is used to send the output signal of the merging unit to the detection terminal.

[0047] The detection terminal sends the second detection instruction of the merging unit to the second detection device. After the second detection device receives the second detection instruction, Figure 4 As shown, a program-controlled power source is used to send a signal to the merging unit, and the second detection data output by the merging unit is transmitted to the detection terminal through the merging unit communication protocol converter. Preferably, the rated current output by the program-controlled power source is 5A, the rated voltage is 57.7V, the merging unit communication protocol converter is compatible with the communication protocol specified in the IEC 61850-9-2LE standard, and the control bus is a wireless communication method.

[0048] In another embodiment of the utility model, in order to further define and illustrate, in order to enable the third detection device to effectively collect detection data of the digital electric energy meter,

[0049] The third detection device includes a message transmitter and a digital electric energy meter communication protocol converter, the message transmitter is connected to the input side of the digital electric energy meter, and the digital electric energy meter communication protocol converter is connected to the pulse output end of the electric energy meter, and is used to send the output signal of the digital electric energy meter to the detection terminal.

[0050] The detection terminal sends the third detection instruction of the digital electric energy meter to the third detection device. After the third detection device receives the third detection instruction, Figure 5 As shown, a message transmitter is used to send a signal to a digital electric energy meter, and the third detection data of the digital electric energy meter is transmitted to a detection terminal as a pulse output through a digital electric energy meter protocol converter, and the control bus is a wireless communication mode.

[0051] In another embodiment of the utility model, for further limitation and explanation, the detection terminal includes a message parser and an error calculator, the message parser receives output signals of the first detection device, the second detection device, and the third detection device, and the error calculator is used to perform error calculation on the detection data.

[0052] Among them, the detection terminal pole uses an error calculator to calculate the single error and overall error of the electronic transformer, merging unit, and digital energy meter, such as Figure 6 As shown, preferably, the message parser can be compatible with the communication protocol specified in the IEC 60044-8 standard and the IEC 61850-9-2LE standard, and the error calculator can calculate the current, voltage, and electric energy errors. At the same time, the single error and the overall error can be calculated based on the existing error method, and the utility model does not make specific limitations.

[0053] In a specific scenario of the present invention, Figure 7 As shown, the digital electric energy metering system detection device, which serves as an electric energy metering system detection device, collects detection data of the electronic mutual inductor, the merging unit, and the digital electric energy meter in the digital electric energy metering system through the first detection device, the second detection device, and the third detection device, respectively, and performs error detection through the control bus return value detection terminal.

[0054] The utility model provides an electric energy metering system detection device. Compared with the prior art, the utility model embodiment comprises: a detection terminal and a detection device group. The detection terminal performs data communication with the detection device group and is used for receiving detection data of a plurality of units to be detected in the electric energy metering system collected by the detection device group, so as to perform equipment detection based on the detection data; the detection device group comprises a plurality of detection devices, which are used for collecting the detection data of a plurality of units to be detected in the electric energy metering system, so that the electric energy metering system detection device has an overall detection function in addition to a separation test function, and does not need repeated wiring, which can effectively shorten the detection time, reduce labor costs, and improve detection efficiency, thereby improving the ability to evaluate the overall performance of a digital electric energy metering system.

[0055] Obviously, those skilled in the art should understand that the above modules or steps of the utility model can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. In this way, the utility model is not limited to any specific combination of hardware and software.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric energy metering system detection device, characterized in that: include: Detection terminal, detection device group, The detection terminal performs data communication with the detection device group, and is used to receive detection data of a plurality of units to be detected in the electric energy metering system collected by the detection device group, so as to perform equipment detection based on the detection data; The detection device group includes a plurality of detection devices, which are used to collect detection data of a plurality of units to be detected in the electric energy metering system.

2. The device according to claim 1, characterized in that The detection device group includes a first detection device, a second detection device, and a third detection device. The first detection device performs data communication with the electronic mutual inductor in the electric energy metering system; The second detection device performs data communication with a merging unit in the electric energy metering system; The third detection device performs data communication with the digital electric energy meter in the electric energy metering system.

3. The device according to claim 2, characterized in that The first detection device is used to receive a first detection instruction and feed back the first detection data collected from the electronic transformer to the detection terminal; The second detection device is used to receive a second detection instruction and feed back the second detection data collected by the merging unit to the detection terminal; The third detection device is used to receive a third detection instruction and feed back the third detection data collected from the digital electric energy meter to the detection terminal.

4. The device according to claim 2, characterized in that The first detection device includes a voltage booster, a current booster, and an electronic transformer communication protocol converter. The voltage booster and the current booster are connected to the primary side of the electronic transformer, and the electronic transformer communication protocol converter is connected to the secondary side of the electronic transformer, and is used to send the output signal of the electronic transformer to the detection terminal.

5. The device according to claim 2, characterized in that The second detection device includes a programmable power source and a merging unit communication protocol converter, the programmable power source is connected to the input side of the merging unit, and the merging unit communication protocol converter is connected to the output side of the merging unit, and is used to send the output signal of the merging unit to the detection terminal.

6. The device according to claim 2, characterized in that The third detection device includes a message transmitter and a digital electric energy meter communication protocol converter, the message transmitter is connected to the input side of the digital electric energy meter, and the digital electric energy meter communication protocol converter is connected to the pulse output end of the electric energy meter, and is used to send the output signal of the digital electric energy meter to the detection terminal.

7. The device according to claim 2, characterized in that The detection terminal includes a message parser and an error calculator. The message parser receives output signals of the first detection device, the second detection device, and the third detection device. The error calculator is used to perform error calculation on the detection data.

8. The device according to any one of claims 1 to 7, characterized in that: The data communication is a control bus using a wireless communication method.

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