CN217278652U

CN217278652U - Portable electric energy quality monitoring device

Info

Publication number: CN217278652U
Application number: CN202120677976.8U
Authority: CN
Inventors: 王纯; 刘春晖; 杨朋威; 陈肖璐; 辛亮; 兰月; 陈浩然; 鲍音夫; 冯旭
Original assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Eastern Inner Mongolia Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Eastern Inner Mongolia Power Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-08-23
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a portable electric energy quality monitoring device, which comprises an operation processing module, wherein the operation processing module is respectively connected with an electric parameter acquisition module, a communication module and a power module, and the power module is connected with a large-capacity battery module; the electric parameter acquisition module is connected with a distribution line of a power distribution system. The operation processing module is connected with an FPGA. Compared with the conventional portable electric energy quality device, the increased high-capacity battery module can support the portable electric energy quality device to continuously operate for 7-10 days, so that the problem of difficulty in source acquisition in more scenes, particularly in power distribution network scenes, is solved.

Description

Portable electric energy quality monitoring device

Technical Field

The utility model belongs to the technical field of electric power system, especially, relate to a portable electric energy quality monitoring device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In recent years, a large number of power electronic devices are widely used in power grid links for power generation, power transmission, power utilization and the like, a large number of power electronic devices are used for photovoltaic power, wind power and the like in a power generation side, and high-voltage direct-current power transmission, high-speed rails and the like also have the characteristic of power electronization, so that the problem of power quality of a power grid is more prominent.

Because the power quality problem relates to a plurality of links of power generation, transformation, transmission, distribution, power utilization and the like, it is unrealistic to install so many power quality on-line monitoring devices to acquire power quality information of corresponding measuring points, and the conventional compromise scheme is to carry out regular monitoring through portable power quality, usually for one week. However, in many scenarios it is very difficult for a portable power quality device to access a power supply, especially on the distribution network side.

Get the problem of electric difficulty to current portable harmonic monitoring device, the utility model provides an increase the large capacity battery in current device.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a portable electric energy quality monitoring device, it can solve a plurality of environments of measurationing and get the problem of power difficulty.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable power quality monitoring device comprising:

the operation processing module is respectively connected with the electrical parameter acquisition module, the communication module and the power supply module, and the power supply module is connected with a high-capacity battery module; the electric parameter acquisition module is connected with a distribution line of a power distribution system.

Furthermore, the operation processing module is connected with an FPGA.

Furthermore, the electrical parameter acquisition module outputs the acquired signals to the operation processing module.

Further, the operation processing module is connected to the server through a communication module.

Further, the large-capacity battery module includes an R6 battery pack.

Further, the R6 battery pack adopts a series-connection-first and parallel-connection structure.

Furthermore, the power module is electrically connected with the operation processing module, the electrical parameter acquisition module and the communication module.

Furthermore, the device also comprises a touch control module, and the touch control module is connected with the operation processing module.

Further, the device also comprises a storage module.

Furthermore, the storage module comprises a SATA hard disk and is connected with the operation processing module and the FPGA.

The utility model has the advantages that:

the utility model discloses a portable electric energy quality monitoring devices, it is complicated to portable electric energy quality operational environment, has the power supply difficulty scheduling problem of getting, adopts large capacity battery module, and the battery that uses can charge repeatedly, can charge to large capacity battery module when power module inserts external power supply, and power module is its power supply by large capacity battery module when not inserting external power supply. Compared with the existing portable power quality device, the added high-capacity battery module can support the portable power quality device to continuously operate for 7-10 days, and the problem that the source of a plurality of scenes, particularly power distribution network scenes, is difficult to obtain is solved.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic structural diagram of a portable power quality monitoring device according to an embodiment of the present invention;

fig. 2 an embodiment of the present invention provides a large capacity battery module structure diagram of a portable power quality monitoring device.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like should be understood in a broad sense, and may be fixedly connected, or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

As shown in fig. 1, the portable power quality monitoring device of the present embodiment includes:

the operation processing module is respectively connected with the electrical parameter acquisition module, the communication module and the power supply module, and the power supply module is connected with a high-capacity battery module; the electric parameter acquisition module is connected with a distribution line of a power distribution system. The operation processing module is connected with an FPGA. The electrical parameter acquisition module outputs the acquired signals to the operation processing module. The operation processing module is connected to the server through the communication module. The large-capacity battery module includes an R6 battery pack. The R6 battery pack adopts a structure of first connecting in series and then connecting in parallel. The power module is electrically connected with the operation processing module, the electrical parameter acquisition module and the communication module. The touch control module is connected with the operation processing module. The device also comprises a storage module. The storage module comprises an SATA hard disk and is connected with the operation processing module and the FPGA.

As an example of the manner in which the device may be used,

the portable electric energy quality monitoring device comprises a double-loop electric parameter acquisition module, an FPGA, an operation processing module, a GPS module, a communication module, an SATA hard disk and a gigabit Ethernet interface, wherein the FPGA is connected with the electric parameter acquisition module and used for synchronous acquisition, the operation processing module is connected with the FPGA and used for real-time data processing/man-machine interaction, the operation processing module is an embedded microprocessor, the GPS module is connected with the operation processing module and used for providing a standard clock signal, the communication module is connected with the operation processing module and used for remote uploading of data, the SATA hard disk is connected with the operation processing module and used for storing data with large capacity, and the gigabit Ethernet interface is connected with the operation processing module and used for wired network communication.

The electric parameter acquisition module converts the voltage and current of the three-phase four-wire or three-phase three-wire into corresponding digital signals. And the FPGA reads the digital signal converted by the electrical parameter acquisition module. When the FPGA is in charge of synchronous sampling, the sampling interval is required to be adjusted according to the voltage and current frequency on the loop, so that the number of sampling points in each signal period is the same, and the high accuracy of subsequent amplitude and phase operation is further ensured.

And the operation processing module is responsible for receiving the sampling value read by the FPGA and obtaining the power quality state of each loop after the real-time value is operated. When an abnormal event occurs, the operation processing module records real-time waveforms, abnormal information and the like before and after the abnormal time to the SATA hard disk, and informs contacts in a mode of uploading the waveforms, the abnormal information and the like to a server, a mobile phone client and the like through the communication module or a gigabit Ethernet interface, and the SATA hard disk is used for storage, so that the problem that the capacity of the monitoring device is insufficient is thoroughly solved. Of course, in practical applications, other kinds of storage media having a mass storage function may be selected.

The time synchronization mode of the GPS module is adopted to ensure that the time of the monitoring equipment is consistent with that of the monitoring system, and the time synchronization error can realize microsecond deviation. The utility model discloses the electric energy quality condition of multiple spot can be monitored at same moment, be convenient for seek the position of taking place the electric energy quality, have long-range upward send function, storage capacity not have the restriction, guarantee monitoring facilities and system clock synchronous. PPS signals extended by the GPS module are respectively connected to the operation processing module and the FPGA, so that the time height synchronization of the multiprocessor can be ensured.

The communication module can be a Bluetooth module, a WIFI module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module and the like. Through setting up multiple wireless communication mode, not only can satisfy different users' demand, also can satisfy the demand of different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires the height to communication quality.

The GPRS module is a 4G module. When the abnormity happens, the abnormity is automatically uploaded to the server through the 4G module, and the client is informed.

The portable electric energy quality monitoring device further comprises a touch control module, and the touch control module is connected with the operation processing module and used for providing touch operation. The portable power quality monitoring device also comprises a liquid crystal display module, wherein the liquid crystal display module is connected with the operation processing module and is used for displaying the power quality state. The design of a large screen display and a touch screen is adopted, so that the user can conveniently use and observe the electric energy quality event.

In this embodiment, the FPGA, the operation processing module, the GPS module, the SATA hard disk, and the gigabit ethernet interface all adopt structures in the prior art.

As an example of the manner in which the device may be used,

the power quality monitoring device comprises an operation processing module 10, an electrical parameter acquisition module 20, a power supply module 30, a communication module 40 and a large-capacity battery module 50;

the electrical parameter acquisition module 20 and the communication module 40 are respectively electrically connected with the operation processing module 10, the electrical parameter acquisition module 20 is also connected with a distribution line of a power distribution network system, the large-capacity battery module 50 is connected with the power supply module 30, and the power supply module 30 is also electrically connected with the operation processing module 10 and the communication module 40;

and the large-capacity battery module 50 is used for outputting a power supply to support the operation processing module 10, the electrical parameter acquisition module 20, the power supply module 30 and the communication module 40 when the power supply module cannot obtain an external power supply, so that the portable electric energy quality device can run for a long time.

The electric parameter acquisition module 20 is used for acquiring the electric parameters of the distribution lines of the power distribution network system and outputting electric parameter acquisition signals to the operation processing module 10;

and the operation processing module 10 is configured to send each acquired signal to the power quality analysis server through the communication module 40 in real time.

The power module 30 is used for providing working power for each module in the power quality monitoring device.

The battery module 50 is constructed by connecting a plurality of batteries in series and then connecting them in parallel, as shown in fig. 2. The module has k batteries connected in series to form a group, and m groups of k batteries are connected in parallel. The series connection ensures that the voltage meets the requirement, and the parallel connection increases the battery capacity. To improve battery availability, a rechargeable R6 battery is preferably used.

As an example of the manner in which the device may be used,

the electric parameter acquisition module adopts the three-phase electric parameter acquisition module of prior art, and the module includes three-phase multiloop electric parameter acquisition unit, model YFC-303G, three-phase multiloop electric parameter acquisition unit is divided into mutual-inductor row and acquisition unit two parts from the structure, acquisition unit can gather the electric current in the three-phase three-loop, voltage, frequency, total active power, total reactive power, total power factor, active power, reactive power, each looks active power, total apparent power, each looks reactive power, parameters such as each looks power factor, can replace 3 three-phase multi-functional kilowatt-hour meters.

Alternatively,

the electric parameter acquisition module selects a three-phase electric quantity module (model: KHEQ-IVPZ) of the spread navigation technology to acquire three-phase alternating current parameters including phase voltage, line voltage, current, power, electric energy, frequency, phase angle, power factor and other parameters.

Three-phase ac voltage input range: 200V and 380V. A larger range can be extended by the voltage transformer. The voltage multiplying power setting can be completed.

Three-phase alternating current input range: 5A, 15A, 20A, 60A, etc., a larger range can be extended by the current transformer. The current multiplying power setting can be completed.

The sampling bit number is 24 bits. The precision of current, voltage and power is better than 1%. Electric energy, active level 1 and reactive level 2.

The module scanning period is fast and can reach 20 times per second.

Working temperature: -40 to +85 ℃.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable power quality monitoring device, comprising:

the operation processing module is respectively connected with the electrical parameter acquisition module, the communication module and the power supply module, and the power supply module is connected with a high-capacity battery module; the electric parameter acquisition module is connected with a distribution line of a power distribution system;

the high-capacity battery module comprises an R6 battery pack, and the R6 battery pack is connected in series and then in parallel.

2. The portable power quality monitoring device according to claim 1, wherein the operation processing module is connected with an FPGA.

3. The portable power quality monitoring device of claim 2, wherein the electrical parameter acquisition module outputs the acquired signal to the operation processing module.

4. The portable power quality monitoring device of claim 3, wherein the computing processing module is connected to the server through a communication module.

5. The portable power quality monitoring device of claim 1, wherein the power module is electrically connected to the operation processing module, the electrical parameter acquisition module and the communication module.

6. The portable power quality monitoring device of claim 1, further comprising a touch control module, wherein the touch control module is connected to the arithmetic processing module.

7. The portable power quality monitoring device of claim 1, further comprising a storage module.

8. The portable power quality monitoring device of claim 7, wherein the storage module comprises a SATA hard disk and is connected to the arithmetic processing module and the FPGA.