CN217305511U

CN217305511U - Be applied to measurement trouble electric quantity and pursue supplementary auxiliary assembly of processing

Info

Publication number: CN217305511U
Application number: CN202220044440.7U
Authority: CN
Inventors: 孔潇安; 王曙平; 姚旭东; 丁琰; 蔡雪峰; 潘磊落; 周水平; 王华祥; 王子文; 江健
Original assignee: State Grid Zhejiang Electric Power Co Ltd Hangzhou Lin'an District Power Supply Co
Current assignee: State Grid Zhejiang Electric Power Co Ltd Hangzhou Lin'an District Power Supply Co
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-08-26
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a be applied to measurement trouble electric quantity and pursue supplementary auxiliary assembly who handles, including casing, processing module, still include collection module, battery module, storage module, display module, button module and wireless communication module, collection module, battery module, storage module, display module, button module and wireless communication module connect processing module, collection module includes sampling circuit and AD converting circuit, AD converting circuit's output connection processing module, sampling circuit is used for gathering three-phase voltage Ua, Ub, Uc respectively to and three-phase current Ia, Ib, Ic. The beneficial effects of the utility model include: simple structure, measurement accuracy can realize following up this basic function of benefit electric quantity, utilizes wireless communication module and interactive module, can provide more convenient and the wider working method of suitability, improves work efficiency.

Description

Be applied to auxiliary assembly that measurement trouble electric quantity was pursued and is mended processing

Technical Field

The utility model relates to a power grid maintenance technical field, in particular to be applied to auxiliary assembly that measurement trouble electric quantity chases after and mends processing.

Background

Under some special conditions, the metering accuracy of the electric energy meter may be problematic, so that the electric quantity metering is inaccurate, the compensation scheme is usually adopted to estimate the electric quantity loss by taking instantaneous power as average power, the compensation scheme has large error when the load change is large, the electric quantity in the period of time cannot be accurately metered, the electric quantity can be estimated only through manpower, and a plurality of electricity utilization customers do not recognize the calculated compensation electric quantity, so that reasonable and fair electricity utilization transactions of electric power enterprises and the electricity utilization customers are influenced.

In the prior art, the utility model of publication No. CN209927921U discloses a monitor for compensating for the fault electric quantity of a metering loop, which comprises an external current unit, a CT data acquisition unit, a DSP digital signal processor unit, a communication unit, an auxiliary power supply unit, an alarm output unit, a PT data acquisition unit, an external voltage unit and a standby PT data acquisition unit; the independent network port and the RS485 port are adopted for output, and the electric quantity acquisition terminal can be connected, so that the functions of remote charging and monitoring are realized. Still like the utility model discloses a CN202770886U utility model discloses an electric quantity chases after and mends equipment, the electric quantity chases after and mends equipment and is equipped with the casing, is equipped with a plurality of communication serial ports, control panel and touch display screen on the casing, be equipped with in the casing with communication serial ports connection's mainboard, be equipped with the treater on the mainboard, the treater chases after to electric energy metering device's error electric quantity, realizes being qualified for the next round of competitions unusually when electric energy metering device is qualified for the next round of competitions, makes electric energy measurement and actual power consumption appear when deviation or even seriously unbalance, and convenient and fast chases after to the electric quantity.

However, the above-mentioned technology is single in function, lacks the wireless communication means, and the use is loaded down with trivial details, and work efficiency is lower.

SUMMERY OF THE UTILITY MODEL

Problem to prior art work efficiency is low, the utility model provides a be applied to measurement trouble electric quantity and pursue supplementary auxiliary assembly who handles has increased the wireless communication function on the basis of original error electric quantity pursuit supplementary function to optimize whole use and experienced, can improve work efficiency.

The technical proposal of the utility model is as follows.

The utility model provides an auxiliary assembly for processing is mended to measurement trouble electric quantity, includes casing, processing module, still includes collection module, battery module, storage module, display module, button module and wireless communication module, collection module, battery module, storage module, display module, button module and wireless communication module connect processing module, collection module includes sampling circuit and AD converting circuit, processing module is connected to AD converting circuit's output, sampling circuit is used for gathering three-phase voltage Ua, Ub, Uc respectively to and three-phase current Ia, Ib, Ic.

The utility model discloses possess battery module, start when can not working a telephone switchboard, storage module can save historical data, consequently can realize looking up historical data's function at any time, and wireless communication module can realize like the wireless connection of printer with other equipment, the print data of being convenient for, improves work efficiency.

Preferably, the sampling circuit is divided into voltage sampling and current sampling, the voltage sampling comprises an A-phase voltage input port, a B-phase voltage input port, a C-phase voltage input port and three groups of phase voltage dividing circuits, and the current sampling comprises an A-phase current CT sampling port, a B-phase current input port, a C-phase current input port and three groups of phase current CT sampling circuits.

Preferably, the phase voltage division circuit comprises a plurality of serially connected division resistors, in the phase current CT sampling circuit, one end of a resistor R98 and one end of a resistor R99 are connected with an a-5A port of the phase current CT sampling circuit, one end of a resistor R100 and one end of a resistor R101 are connected with an a-500/1000a port, the other ends of the resistor R99 and the resistor R100 are connected with an AGND port, the other ends of the resistor R98 and the resistor R101 are connected with an a/D conversion circuit and are respectively connected with AGND through a capacitor C95 and a capacitor C98, and the circuit structures of the phase B current CT sampling circuit and the phase C current CT sampling circuit are consistent with the phase a current CT sampling circuit.

Preferably, in the acquisition module, the a/D conversion circuit includes a metering chip ADE7878 and its operating circuit.

Preferably, the wireless communication module is a bluetooth module. Can be used to connect the printer or the display device of bluetooth of strip, improve work efficiency.

Preferably, the mobile phone further comprises an interaction module, and the display module and the key module are connected with the processing module through the interaction module. The interactive module can share the processing pressure of the processing module, improve the response speed of the equipment, provide a hardware basis for the optimization of the human-computer interactive operation and facilitate the subsequent optimization.

Preferably, the interaction module comprises a chip STM32F407VE and an operating circuit thereof.

The beneficial effects of the utility model include: simple structure, measurement accuracy can realize following up this basic function of benefit electric quantity, utilizes wireless communication module and interactive module, can provide more convenient and the wider working method of suitability, improves work efficiency.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of an acquisition module according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a battery module according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a memory module according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of an interactive module according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a display module according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a key module according to an embodiment of the present invention;

fig. 8 is a schematic circuit diagram of a bluetooth module according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.

In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.

Example (b):

as shown in fig. 1, the auxiliary device for the compensation processing of the measured fault electric quantity comprises a housing, a processing module S203, an acquisition module S300, a battery module S204, a storage module S205, a display module S207, a key module S208 and a wireless communication module S211, wherein the acquisition module, the battery module, the storage module, the display module, the key module and the wireless communication module are connected with the processing module,

the embodiment is also provided with a satellite time service module S209 and a satellite time service module S485.

As shown in fig. 2, the acquisition module includes a sampling circuit and an a/D conversion circuit, an output end of the a/D conversion circuit is connected to the processing module, and the sampling circuit is respectively used for acquiring three-phase voltages Ua, Ub, Uc and three-phase currents Ia, Ib, Ic. The sampling circuit is divided into voltage sampling and current sampling, the voltage sampling comprises an A phase voltage input port, a B phase voltage input port, a C phase voltage input port and three groups of phase voltage divider circuits, and the current sampling comprises an A phase current CT sampling port, a B phase current input port, a C phase current input port and three groups of phase current CT sampling circuits.

In fig. 2, the phase voltage dividing circuit includes a plurality of serially connected dividing resistors, in the phase current CT sampling circuit, one end of a resistor R98 and one end of a resistor R99 are connected to an a-5A port of the phase current CT sampling circuit, one end of a resistor R100 and one end of a resistor R101 are connected to an a-500/1000a port, the other ends of the resistor R99 and the resistor R100 are connected to an AGND port, the other ends of the resistor R98 and the resistor R101 are connected to an a/D conversion circuit and are connected to AGND through a capacitor C95 and a capacitor C98, and the circuit structures of the phase B current CT sampling circuit and the phase C current CT sampling circuit are the same as those of the phase a current CT sampling circuit.

In the acquisition module of this embodiment, the a/D conversion circuit includes a metering chip ADE7878 and its operating circuit.

As shown in fig. 3, the present embodiment includes a battery module, which can be started when the battery module is not connected to a power line, the storage module of fig. 4 can store historical data, so that the function of looking up the historical data at any time can be realized, the wireless communication module can be wirelessly connected to other devices such as a printer, which is convenient for data printing, and the work efficiency is improved.

As shown in fig. 5, the display module and the key module are connected to the processing module through the interactive module. The interactive module can share the processing pressure of the processing module, improve the response speed of the equipment, provide a hardware basis for the optimization of the human-computer interactive operation and facilitate the subsequent optimization. In this embodiment, the interaction module includes a chip STM32F407VE and its operating circuit. The display module is shown in fig. 6, and the key module is shown in fig. 7.

In this embodiment, the wireless communication module is a bluetooth module shown in fig. 8. Can be used to connect the printer or the display device of belt bluetooth, improve work efficiency.

This embodiment simple structure, measurement are accurate, can realize following up this basic function of benefit electric quantity, utilize wireless communication module and interactive module, can provide more convenient and the wider working method of suitability, improve work efficiency.

Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions.

Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an auxiliary assembly for measurement trouble electric quantity is mended processing, includes casing, processing module, its characterized in that still includes collection module, battery module, storage module, display module, button module and wireless communication module, collection module, battery module, storage module, display module, button module and wireless communication module connect processing module, collection module includes sampling circuit and AD converting circuit, processing module is connected to AD converting circuit's output, sampling circuit is used for gathering three-phase voltage Ua, Ub, Uc respectively to and three-phase current Ia, Ib, Ic.

2. The auxiliary equipment applied to the measured fault electric quantity compensation processing is characterized in that the sampling circuit is divided into a voltage sampling circuit and a current sampling circuit, the voltage sampling circuit comprises an A-phase voltage input port, a B-phase voltage input port, a C-phase voltage input port and three groups of phase voltage bleeder circuits, and the current sampling circuit comprises an A-phase current CT sampling port, a B-phase current input port, a C-phase current input port and three groups of phase current CT sampling circuits.

3. The auxiliary equipment for the supplementary processing of the metered fault power is characterized in that the phase voltage divider circuit comprises a plurality of serially connected divider resistors, in the phase current CT sampling circuit, one end of a resistor R98 and a resistor R99 is connected with an A-5A port, one end of a resistor R100 and a resistor R101 is connected with an A-500/1000A port, the other end of a resistor R99 and the other end of a resistor R100 are connected with an AGND port, the other end of a resistor R98 and the other end of a resistor R101 are connected with an A/D conversion circuit and are respectively connected with AGND through a capacitor C95 and a capacitor C98, and the circuit structures of the phase B current CT sampling circuit and the phase C current CT sampling circuit are consistent with the phase A current CT sampling circuit.

4. The auxiliary device applied to the compensation processing of the metering failure electric quantity of the claim 2 is characterized in that in the acquisition module, the A/D conversion circuit comprises a metering chip ADE7878 and a working circuit thereof.

5. The auxiliary device for supplementary processing of metering failure electric quantity according to claim 1, wherein the wireless communication module is a bluetooth module.

6. The auxiliary device applied to the compensation processing of the metering failure electric quantity is characterized by further comprising an interaction module, wherein the display module and the key module are connected with the processing module through the interaction module.

7. The auxiliary device applied to the compensation processing of the metering failure electric quantity is characterized in that the interaction module comprises a chip STM32F407VE and an operating circuit thereof.