CN216792727U

CN216792727U - Central control device testing device with carrier receiver

Info

Publication number: CN216792727U
Application number: CN202220367892.9U
Authority: CN
Inventors: 沈扬; 李培宜; 何华伟; 温富光; 邹宇
Original assignee: Nanjing SAC Automation Co Ltd
Current assignee: Nanjing SAC Automation Co Ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-06-21
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses a central control device testing device with a carrier receiver, which belongs to the technical field of power system relay protection testing. The utility model greatly increases the data transmission distance and reduces the use number of routers. The carrier connector is adopted to connect, so that the test efficiency is improved, and the test environment is attractive.

Description

Central control device testing device with carrier receiver

Technical Field

The utility model relates to a central control device testing device with a carrier receiver, and belongs to the technical field of power system relay protection testing.

Background

With the increasing of the investment of China on carbon peak reaching and carbon neutralization, the demand of enterprises for self-building micro-grids increases, micro-grid systems (hereinafter referred to as micro-grids) become more and more important, and the scale of the micro-grid systems also becomes larger and larger. The micro-grid system needs to collect the electric quantities of a plurality of electric elements of various new energy devices to realize a control function.

In order to test the functions of the developed microgrid system, it is a typical practice of each manufacturer to develop a special central control device, and the testing device applies an electrical quantity to the central control device. The testing device is uniformly managed by testing control software running on an upper computer, and the testing software of the upper computer communicates with the central control device through an industrial Ethernet port interface to issue testing data and testing commands. The method is similar to the way that a plurality of relay protection testers are managed simultaneously through one computer. The testing software can be used for simultaneously applying electrical quantity to a plurality of central control devices so as to realize the functional test of the microgrid.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a central control device testing device with a carrier receiver, which greatly increases the data transmission distance and reduces the using number of routers. The carrier connector is adopted to connect, so that the test efficiency is improved, and the test environment is attractive.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a central control device testing device with a carrier receiver, which comprises a CPU module, wherein the output end of the CPU module is connected with an FPGA module, the input end of the CPU module is connected with the carrier receiver, the input end of the FPGA module is connected with a DI module, and the output end of the FPGA module is respectively connected with a D/A module and a DO module.

Furthermore, the testing device is connected with a central control device through a testing cable, and the central control device is in communication connection with a PC running with testing control software through a router.

Further, a plurality of the test devices correspond to a PC, and test control software running on the PC is capable of accessing each test device, the test control software being configured to send test commands and test data to the carrier receiver.

Further, the CPU module is configured to analyze the test command and the test data of the carrier receiver and send the analyzed test command and test data to the FPGA module.

Furthermore, the FPGA module is used for acquiring the input of the DI module and the output of the real-time DO module in real time according to the analyzed test command and test data, and calculating the size of the output analog sampling value in real time and outputting the D/A module.

Further, the CPU module runs with a vxworks system.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses a central control device with a carrier receiver, test control software running on an upper computer generates test data and a test command, and carrier communication is adopted to greatly increase the data transmission distance and reduce the use number of routers compared with Ethernet port connection. The carrier connector is adopted to connect, so that the test efficiency is improved, and the test environment is attractive.

Drawings

Fig. 1 is a schematic diagram of a central control device with a carrier receiver according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the operation of the central control device with a carrier receiver according to the embodiment of the present invention.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The embodiment is as follows:

a central control device test device with carrier receiver, wherein the test device has carrier receiver, realizes the communication between PC and central control device by using router as intermediate medium, and uses router to establish a network, and the notebook computer and central control device are added into the network. The test control software on the notebook computer can access each test device through the network cable, respectively control the analog quantity output and the switching value output of each test device, and realize the function test of the stability control system.

The testing device comprises a CPU module adopting a vxworks system, the output end of the CPU module is connected with an FPGA module for real-time acquisition, calculation and output, the input end of the CPU module is connected with a carrier receiver for receiving test data and test commands sent by test control software, the input end of the FPGA module is also connected with a DI module for acquiring input signals, and the output end of the FPGA module is respectively connected with a D/A module for outputting analog quantity and a DO module for outputting output signals.

It should be noted that, when the testing device of the central control device with the carrier receiver is used, firstly, the test control software running on the PC sends test data and test commands to the central control device through the carrier, the software interface of the test control software is similar to the software interface of the traditional relay protection tester, the test software organizes data through the interface, then the test command and the test data of the test control software are sent to a central control device, the carrier receiver receives the test command and the test data of the test control software and sends the test command and the test data to a CPU module in the central control device, then, the CPU module analyzes the test command and the test data of the carrier receiver and sends the test command and the test data to the FPGA module, and acquires the input of the DI module and the output of the DO module in real time by means of the strong computing capability of the FPGA module, and calculates the size of the sampling value of the output analog quantity in real time and outputs the D/A module.

The utility model uses the test control software running on the upper computer to generate the test data and the test command, and adopts carrier communication to greatly increase the data transmission distance and reduce the use number of routers compared with the Ethernet port connection. The carrier connector is adopted to connect, so that the test efficiency is improved, and the test environment is attractive.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The testing device is characterized by comprising a CPU module, wherein the output end of the CPU module is connected with an FPGA module, the input end of the CPU module is connected with a carrier receiver, the input end of the FPGA module is connected with a DI module, and the output end of the FPGA module is respectively connected with a D/A module and a DO module.

2. The central control unit test device with a carrier receiver of claim 1, wherein the test device is connected to the central control unit through a test cable, and the central control unit is communicatively connected to a PC running test control software through a router.

3. The apparatus of claim 1, wherein a plurality of said test devices correspond to a PC, and wherein each test device is accessible to test control software running on the PC, said test control software being adapted to send test commands and test data to the carrier receiver.

4. The apparatus as claimed in claim 3, wherein the CPU module is configured to parse the test command and the test data of the carrier receiver and send the parsed test command and test data to the FPGA module.

5. The device as claimed in claim 4, wherein the FPGA module is configured to collect the DI module input and the real-time DO module output in real time according to the analyzed test command and test data, and calculate the output analog sampling value and the D/A module output in real time.

6. The apparatus of claim 1, wherein the CPU module runs a vxworks system.