CN217335206U

CN217335206U - Portable relay protection constant value inspection device

Info

Publication number: CN217335206U
Application number: CN202220929977.1U
Authority: CN
Inventors: 宁小波; 汪勤; 吴旻; 杨灵; 高虎; 刘林; 潘勇; 王宁; 宋元超
Original assignee: State Grid Sichuan Electric Power Transmission And Transformation Construction Co ltd
Current assignee: State Grid Sichuan Electric Power Transmission And Transformation Construction Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-30
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to a portable relay protection constant value inspection device, which comprises an upper computer module, a data acquisition board and a power module; the upper computer module comprises an upper computer comprehensive processing board, a liquid crystal screen driving board in communication connection with the upper computer comprehensive processing board, a keyboard board and a trackball board, wherein the keyboard board and the trackball board are connected with the input end of the upper computer comprehensive processing board; the output end of the data acquisition board is connected with the input end of the upper computer comprehensive processing board, the acquired data information of the relay protection device is transmitted to the upper computer module, and the power supply output end of the power supply module is connected with the power supply input ends of the upper computer module and the data acquisition board. The utility model discloses an adopt the interior relay protection equipment general interface design of transformer substation, can be directly continuous with the interior relevant equipment of transformer substation, alleviate staff's wiring complexity and work load. The CPU circuit of the core part of the hardware circuit adopts a modularized and plug-in design method to realize the direct application of the module board card on other products.

Description

Portable relay protection constant value inspection device

Technical Field

The utility model relates to an intelligent transformer substation technical field especially relates to a portable relay protection constant value inspection device.

Background

With the advanced development of smart power grids in China, the construction technology of the smart substation serving as a core part is mature day by day, wherein the relay protection device serves as one of the guarantee technologies for stable and reliable operation of the power system, and the advancement and the working stability of the technology must be guaranteed.

The correct action data of the fixed value base point protection device are protected, the accuracy of the action data is guaranteed to be the first task of operation and maintenance personnel, then, the relay protection devices in the intelligent station are numerous, the fixed values of the devices are adjusted along with the change of the operation mode and the operation condition, and the working intensity of the operation and maintenance personnel is increased; at present, the mode is checked one by one to the most artifical work of patrolling and examining of intelligent station relay protection definite value, there are inefficiency, easy mistake leak, waste time and energy scheduling problem, however, according to the general operation regulation requirement of national grid company, must carry out the pertinence inspection to the protection definite value of new delivery or the back equipment of overhauing and checking, the mode that the traditional manual inspection was checked is too lagged behind, be not conform to electric power system intellectuality, automatic development demand, consequently, how the problem that the mode exists is checked to traditional manual inspection, need consider at present stage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a portable relay protection definite value inspection device, the transformer substation of being convenient for fortune dimension personnel is convenient, quick, accurate carry out relay protection device definite value check work.

The purpose of the utility model is realized through the following technical scheme: a portable relay protection constant value inspection device comprises an upper computer module, a data acquisition board and a power supply module; the upper computer module comprises an upper computer comprehensive processing board, a liquid crystal screen driving board in communication connection with the upper computer comprehensive processing board, a keyboard board and a trackball board, wherein the keyboard board and the trackball board are connected with the input end of the upper computer comprehensive processing board; the output end of the data acquisition board is connected with the input end of the upper computer comprehensive processing board, the acquired data information of the relay protection device is transmitted to the upper computer module, and the power supply output end of the power supply module is connected with the power supply input end of the upper computer module and the data acquisition board.

The data acquisition board comprises a communication interface board and a straight line communication board; one end of the communication interface board is connected with one end of the in-line communication board, the other end of the communication interface board is connected with the data output end of the relay protection device, and the other end of the in-line communication board is connected with the input end of the upper computer comprehensive processing board.

The communication interface board comprises an electric network interface, an RS232 interface and an RS485 serial port which are connected with the relay protection equipment, and the other ends of the electric network interface, the RS232 interface and the RS485 serial port are in communication connection with the straight line.

The memory interface circuit comprises an interface chip, one end of the interface chip is connected with the upper computer comprehensive processing board, and the other end of the interface chip is connected with the SD card.

The keyboard board comprises 5 paths of key circuits, and each path of key circuit is connected with 5 keys to form a 5 multiplied by 5 matrix type key circuit; the 5 x 5 matrix type key circuit is connected with the upper computer comprehensive processing board.

The utility model has the advantages of it is following: a portable relay protection constant value inspection device adopts a portable case, a large-size screen and a movable design, is convenient for operation and maintenance personnel to carry, can be repeatedly used for constant value checking work of different transformer substations, and saves the investment cost of transformer substation hardware and the cost of the operation and maintenance personnel. By adopting the design of the universal interface of the relay protection equipment in the transformer substation, the relay protection equipment can be directly connected with the relevant equipment in the transformer substation, and the wiring complexity and the workload of workers are reduced. The CPU circuit of the core part of the hardware circuit adopts a modularized and plug-in design method to realize the direct application of the module board card on other products.

Drawings

FIG. 1 is a schematic diagram of the principle structure of the present invention;

fig. 2 is a schematic block diagram of the design of an external communication interface circuit;

FIG. 3 is a schematic diagram of a memory circuit design;

FIG. 4 is a schematic diagram of a circuit design of a keypad board;

FIG. 5 is a schematic diagram of an application scenario;

in the figure: the system comprises a communication interface board 1, a straight-line communication board 2, an upper computer comprehensive processing board 3, a keyboard board 4, a trackball board 5 and a liquid crystal screen driving board 6.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1, the portable relay protection constant value inspection device comprises an upper computer module, a data acquisition board and a power module; the upper computer module comprises an upper computer comprehensive processing board 3, a liquid crystal screen driving board 6 in communication connection with the upper computer comprehensive processing board 3, a keyboard board 4 connected with the input end of the upper computer comprehensive processing board 3 and a trackball board 5, wherein the liquid crystal screen driving board 6 drives a display screen to display the automatic comparison result of the fixed value of the relay protection device; the output of data acquisition board with the input of host computer integrated processing board 3 is connected, and the relay protection equipment's that will gather data information transmits to the host computer module in, power module's power supply output with the power supply input of host computer module and data acquisition board is connected.

Further, the upper computer comprehensive processing board 3 adopts a core processing plus data storage design. The data storage comprises the step of storing the imported standard fixed value data and the imported running fixed value data in a fixed value item name + fixed value content mode. The core processing module is used for processing the collected operation fixed value data and the standard fixed value data obtained by importing and analyzing, and specifically comprises automatic association and automatic comparison.

Wherein, the step that host computer integrated processing board 3 handled data does:

step 1, calling standard fixed value data from a data storage area;

step 2, calling operation fixed value data from a data storage area;

step 3, automatically comparing the standard fixed value data with the operation fixed value data;

and 4, forming a fixed value checking report.

The data acquisition board comprises a communication interface board 1 and a straight-line communication board 2; one end of the communication interface board 1 is connected with one end of the in-line communication board 2, the other end of the communication interface board is connected with a data output end of the relay protection device, and the other end of the in-line communication board 2 is connected with an input end of the upper computer comprehensive processing board 3.

The communication interface board comprises a power network interface, an RS232 interface and an RS485 serial port which are connected with the relay protection equipment, and the other ends of the power network interface, the RS232 interface and the RS485 serial port are in communication connection with the straight line.

Further, as shown in fig. 2, the electrical network interface is designed by adopting a PHY chip with a model number of RTL8211E, network data can be transmitted through a CAT 5UTP cable and a CAT 3UTP cable, and the chip is used for data communication between the MAC and the PHY. The utility model discloses an adopt the straight winding displacement mode to communicate to internal communication.

As shown in fig. 3, the integrated processing board further comprises a memory interface circuit, wherein the memory interface circuit comprises an interface chip, one end of the interface chip is connected with the upper computer integrated processing board, and the other end of the interface chip is connected with the SD card. The memory interface circuit adopts an interface chip with the model number of TXS02612RTWR and is suitable for SD cards of various manufacturers.

As shown in fig. 4, the keyboard board includes 5 paths of key circuits, and each path of key circuit is connected with 5 keys to form a 5 × 5 matrix type key circuit; the 5 x 5 matrix type key circuit is connected with the upper computer comprehensive processing board, and an expansion IO port of a CPU is not required to be additionally added.

As shown in fig. 5, do the utility model discloses an use scene schematic diagram, including substation control layer equipment, MMS data network, wall equipment, SV/GOOSE net, process layer equipment, the definite value inspection device passes through the MMS net and acquires relay protection device and is transporting definite value content at present, simultaneously, channels into standard definite value list to with both relevance, automatic check compare, finally, show relay protection definite value and patrol and examine the result.

The method for acquiring the running fixed value of the relay protection device by the fixed value inspection device comprises the following steps of firstly acquiring a configuration file of the relay protection device by importing an SCD, analyzing and acquiring a communication address of the device, analyzing and capturing message information of the relay protection device, and finally acquiring the current running fixed value.

Wherein, the mode that the definite value inspection device acquireed standard definite value is for leading-in standard definite value list and analysis, the utility model discloses support the definite value list of leading-in formats such as WORD, EXCEL, CSV, TXT.

The utility model discloses a working process does: the method comprises the steps that specific information of a relay protection device in a station is extracted to a local database through an SCD file of an intelligent substation, and communication parameters of equipment are obtained; extracting the standard constant value single content to a local database by importing a standard constant value list issued by scheduling, and storing the standard constant value single content by using a constant value item name and the constant value content; the portable fixed value inspection device obtains the fixed value data of the relay protection device in operation based on the communication address of the relay protection device and stores the data by the name of a fixed value item and the content of the fixed value; the portable fixed value inspection device automatically associates the name of the operation fixed value item with the name of the standard fixed value item and automatically compares the fixed value content; the portable constant value inspection device displays the comparison result and derives a comparison report.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a portable relay protection definite value inspection device which characterized in that: the device comprises an upper computer module, a data acquisition board and a power supply module; the upper computer module comprises an upper computer comprehensive processing board, a liquid crystal screen driving board in communication connection with the upper computer comprehensive processing board, a keyboard board and a trackball board, wherein the keyboard board and the trackball board are connected with the input end of the upper computer comprehensive processing board; the output end of the data acquisition board is connected with the input end of the upper computer comprehensive processing board, the acquired data information of the relay protection device is transmitted to the upper computer module, and the power supply output end of the power supply module is connected with the power supply input end of the upper computer module and the data acquisition board.

2. The portable relay protection constant value inspection device according to claim 1, wherein: the data acquisition board comprises a communication interface board and a straight-line communication board; one end of the communication interface board is connected with one end of the in-line communication board, the other end of the communication interface board is connected with the data output end of the relay protection device, and the other end of the in-line communication board is connected with the input end of the upper computer comprehensive processing board.

3. The portable relay protection constant value inspection device according to claim 2, wherein: the communication interface board comprises an electric network interface, an RS232 interface and an RS485 serial port which are connected with the relay protection equipment, and the other ends of the electric network interface, the RS232 interface and the RS485 serial port are in communication connection with the straight line.

4. The portable relay protection constant value inspection device according to claim 1, wherein: the memory interface circuit comprises an interface chip, one end of the interface chip is connected with the upper computer comprehensive processing board, and the other end of the interface chip is connected with the SD card.

5. The portable relay protection constant value inspection device according to claim 1, wherein: the keyboard board comprises 5 paths of key circuits, and each path of key circuit is connected with 5 keys to form a 5 x 5 matrix type key circuit; the 5 x 5 matrix type key circuit is connected with the upper computer comprehensive processing board.