CN106771794B - Multifunctional virtual relay protection experiment complete equipment - Google Patents

Abstract

The invention relates to the technical field of electrical equipment, in particular to a multifunctional virtual relay protection experiment complete device. The invention discloses a multifunctional virtual relay protection experiment complete device which comprises a computer 1, a computer 2, a data acquisition card 1, a data acquisition card 2, a data acquisition card 3, a data acquisition card 4, a data acquisition card 5, a data acquisition card 6, a display screen 1 and a display screen 2, wherein the computer 2 is connected with the data acquisition card 1; the relay protection tester can be simulated by the computer 1 and the data acquisition card 1, the relay protection device can be simulated by the computer 2 and the data acquisition card 2, the wiring detection of the relay protection test can be carried out by the data acquisition card 3 to the data acquisition card 6 in cooperation with the computer 1 and the computer 2, the corresponding relation between the terminal of the simulated relay protection tester and the simulated relay protection device and the terminal of the data acquisition card 1 and the terminal of the simulated relay protection device can be respectively displayed by the display screen 1 and the display screen 2, and the experiments of various relay protection devices can be completed by one set of device.

Description

Multifunctional virtual relay protection experiment complete set

technical field

The invention relates to the technical field of electrical equipment, in particular to a multifunctional virtual relay protection experiment complete set.

Background technique

The relay protection device is an automatic device that reflects the fault or abnormal working state of the electrical equipment in the power system, and acts on the circuit breaker to trip or send a signal. According to regulations, any electrical equipment is not allowed to be put into operation without a relay protection device.

In order to ensure the correct operation of the relay protection device, it is necessary to test the relay protection device very carefully in all stages of development, production, installation acceptance, regular and supplementary inspection. The level of relay protection test personnel will directly affect the test results of relay protection devices. Therefore, it is necessary to establish a relay protection laboratory for test personnel to train and study to improve the test level.

There are many kinds of relay protection devices, and the construction of a fully functional laboratory needs to occupy a large laboratory area; relay protection devices are expensive, especially the protection devices of ultra-high voltage and ultra-high voltage equipment. The cost of the laboratory is huge; the relay protection device is updated quickly. With the update of the actual equipment on site, the laboratory relay protection device also needs to be updated, and the construction pressure is huge. Therefore, it is very necessary to build a relay protection laboratory with less capital and a smaller footprint.

Contents of the invention

The technical problem to be solved by the present invention is to provide a complete set of multifunctional virtual relay protection experiments, which can complete various relay protection device experiments with one set of devices, and reduce the construction and update costs of relay protection laboratories.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a multifunctional virtual relay protection experiment complete set, comprising: computer 1, computer 2, data acquisition card 1, data acquisition card 2, data acquisition card 3, data Acquisition card 4, data acquisition card 5, data acquisition card 6, display screen 1, and display screen 2;

Computer 1 is respectively connected with described computer 2, data acquisition card 1, data acquisition card 3, data acquisition card 5, and display screen 1; Described computer 2 is respectively connected with described computer 1, data acquisition card 2, data acquisition card 4. The data acquisition card 6 and the display screen 2 are connected in communication; the data acquisition card 1 is respectively connected to the computer 1 and the data acquisition card 3 in communication, and is electrically connected to the data acquisition card 2; the data acquisition card 2 is connected to the Described computer 2, data acquisition card 4 communication connections, are electrically connected with data acquisition card 1; Described data acquisition card 3 is connected with described data acquisition card 5, computer 1 communication connection; Described data acquisition card 4 is connected with described computer 2, The data acquisition card 6 is connected in communication; the data acquisition card 5 is connected in communication with the computer 1 ; the data acquisition card 6 is connected in communication with the computer 2 .

Described data acquisition card 1 and data acquisition card 2 have the input and output function of analog quantity and digital quantity simultaneously; Described data acquisition card 3 and data acquisition card 4 have the input and output function of digital quantity; Described data acquisition card 5 and data The acquisition card 6 has an analog input and output function.

The virtual relay protection tester driver, the display screen 1 driver, and the first wiring inspection program are preset in the computer 1; the virtual relay protection device driver, the display screen 2 driver are preset in the computer 2 program, and the second wiring inspection program.

Both display screen 1 and display screen 2 are LED display screens.

The advantages and effects of the present invention are: a multifunctional virtual relay protection experiment complete set of the present invention, including computer 1, computer 2, data acquisition card 1, data acquisition card 2, data acquisition card 3, data acquisition card 4. Data acquisition card 5, data acquisition card 6, display screen 1, and display screen 2; the relay protection tester can be simulated by computer 1 and data acquisition card 1, and the relay protection device can be simulated by computer 2 and data acquisition card 2 , through the data acquisition card 3 to the data acquisition card 6 cooperate with the computer 1 and the computer 2 to carry out the wiring detection of the relay protection test, and display the terminals of the simulated relay protection tester and the relay protection device through the display screen 1 and the display screen 2 respectively The corresponding relationship with the terminals in the data acquisition card 1 and the data acquisition card 2 can complete various relay protection device experiments with one set of devices, reducing the construction and update costs of the relay protection laboratory.

Description of drawings

Below in conjunction with accompanying drawing, the present invention is described in further detail:

Fig. 1 is the structural diagram of the multifunctional virtual relay protection experiment complete set of the present invention;

Fig. 2 is the main interface of the virtual relay protection tester of the multifunctional virtual relay protection experiment complete set of the present invention;

Fig. 3 is the model selection interface of the virtual relay protection device of the multifunctional virtual relay protection experiment complete set of the present invention;

Fig. 4 is the display interface of the virtual relay protection device of the multifunctional virtual relay protection experiment complete set of the present invention;

Fig. 5 is a circuit diagram of the multi-functional virtual relay protection experiment complete set of the present invention when carrying out the relay protection test of the DL-32 current relay.

Detailed ways

As shown in Fig. 1, the present invention provides a kind of multifunctional virtual relay protection experimental complete set, comprising: computer 1, computer 2, data acquisition card 1, data acquisition card 2, data acquisition card 3, data acquisition card 4, data Acquisition card 5, data acquisition card 6, display screen 1, and display screen 2;

Computer 1 is respectively connected with described computer 2, data acquisition card 1, data acquisition card 3, data acquisition card 5, and display screen 1; Described computer 2 is respectively connected with described computer 1, data acquisition card 2, data acquisition card 4. The data acquisition card 6 and the display screen 2 are connected in communication; the data acquisition card 1 is respectively connected to the computer 1 and the data acquisition card 3 in communication, and is electrically connected to the data acquisition card 2; the data acquisition card 2 is connected to the Described computer 2, data acquisition card 4 communication connections, are electrically connected with data acquisition card 1; Described data acquisition card 3 is connected with described data acquisition card 5, computer 1 communication connection; Described data acquisition card 4 is connected with described computer 2, The data acquisition card 6 is connected in communication; the data acquisition card 5 is connected in communication with the computer 1 ; the data acquisition card 6 is connected in communication with the computer 2 .

Preferably, both the display screen 1 and the display screen 2 are LED display screens.

Specifically, the computer 2 is used to form a relay protection device; the computer 1 is used to form a relay protection tester, and the data acquisition card 1 is used to cooperate with the computer 1 to form a relay protection tester. It not only has analog input and output functions, but also has digital input and output functions; the data acquisition card 2 is used to cooperate with the computer 2 to form a relay protection device. This acquisition card not only has analog input and output functions, but also has Digital input and output functions; the data acquisition card 3 has only digital input and output functions, and is used to cooperate with the computer 1 and computer 2 to judge whether the wiring in the relay protection test is correct; the data acquisition card 4 only has digital input and output function, used to cooperate with computer 1 and computer 2 to judge whether the wiring in the relay protection test is correct; the data acquisition card 5 only has analog input and output functions, and is used to cooperate with computer 1 to judge whether the wiring in the relay protection test is correct; Acquisition card 6 only has analog input and output functions, and is used to cooperate with computer 2 to judge whether the wiring in the relay protection test is correct; display screen 1 is used to display when computer 1 executes a certain program, the terminal position of data acquisition card 1 corresponds The terminal of the relay protection tester; the display screen 2 is used to display the terminal of the relay protection device corresponding to the terminal of the data acquisition card 2 when the computer 2 executes a certain program.

The preset software program in the computer 1 mainly includes three parts, and the first part is the driver program of the virtual relay protection tester, which is responsible for starting the relevant parts of the data acquisition card 1; the second part is the driver program of the LED display screen, It is responsible for starting the subtitle display of the display screen 1; the third part is the first wiring inspection program, which is responsible for starting the relevant parts of the data acquisition card 3 and the data acquisition card 5, and is used to judge whether the wiring is correct. The preset software program in the computer 2 also mainly includes three parts, the first part is the driver program of the virtual relay protection device, which includes several subroutines, which are responsible for starting the relevant parts of the data acquisition card 2, and each subroutine makes the data acquisition card 2 The meaning of the corresponding actual relay protection device hardware is different, and when different subroutines are started, the data acquisition card 2 and the computer 2 cooperate to become different virtual relay protection devices; the second part is the driver program of the display screen 2, which is responsible for starting the display The subtitle display on screen 2 also includes several subroutines, each subroutine causes the display screen 2 to display different subtitles, and when different subroutines are started, the display screen 2 is used to display the actual relay protection corresponding to the connection terminals of the data acquisition card 2 at this time. The terminal content of the device; the third part is the second wiring inspection program, which is responsible for starting the relevant parts of the data acquisition card 4 and the data acquisition card 6, and is used to judge whether the wiring is correct.

Specifically, when adopting the present invention to test, the computer 1 is turned on, and after entering the main program, the display screen 1 will display the interface shown in Figure 2, in which the data display part is completely the same as the real relay protection tester, mainly including Voltage, current, digital input, output and other functions are displayed. "Pre-test" and "Start experiment" are two buttons. After completing the connection between the virtual relay protection tester and the virtual relay protection device, use the Check the wiring before the test starts and start the test formally.

Specifically, turn on the computer 2, and after entering the main program, the display screen 2 will display the interface shown in Figure 3. Figure 3 shows various types of relay protection devices, and the models of relay protection devices that users test according to their needs are shown in Figure 3. Select the corresponding relay protection device model in the displayed interface, and then the display screen 2 will display the interface shown in Figure 4. The relay protection device display interface will display the conditions of each terminal of the selected model of relay protection device.

Further, referring to FIG. 5 , in order to illustrate the present invention more clearly, the present invention will be further described below using a preferred embodiment of the present invention. The preferred embodiment of the present invention is to utilize this relay protection experiment suit to carry out DL-32 type current relay action characteristic experiment,

The specific test process is:

1. Turn on computer 1 and computer 2, enter the main program of computer 1 and computer 2 respectively, and then select the relay protection device to be tested on computer 2, here select "DL-32 current relay", at this time, the display Screen 1 and display screen 2 are displayed according to the requirements of the relay protection experiment (the program is set in advance), the purpose of which is to make the hardware identification of the virtual instrument clearer.

2, carry out wiring according to experimental principle, display screen 1 and display screen 2 shown, concrete as shown in Figure 5, the data acquisition card 2 that Ia, In, X1, X2 terminals of described data acquisition card 1 are connected respectively 8, 2, 1, 3 terminals, the 4 terminals of the data acquisition card 2 are connected to the 6 terminals, the normally open contacts 1 and 2 of the data acquisition card 3 are respectively connected to the terminals Y5-1 and Y5-2 terminals of the data acquisition card 5 , the normally open contacts 1 and 4 of the data acquisition card 4 are respectively connected to terminals Y6-1 and Y6-4 of the data acquisition card 6.

3. After the wiring is completed, click the "pre-detection" button in the interface of computer 1 at this time. Since computer 1 and computer 2 have a communication relationship, at this time, computer 2 will also proceed according to the pre-programmed schedule. The program control in the computer 2 makes the terminals on the data acquisition card 6: Y6-1 and Y6-4 generate current, and the current values are different, for example, the current on Y6-1 is 5mA, and the current on Y6-4 is 10mA. The normally open contacts 1 and 2 of the data acquisition card 3 are closed, and the normally open contacts 1 and 4 of the data acquisition card 4 are closed. At this time, if the experimenter's wiring is correct, the terminal Y5-1 of the data acquisition card 5 receives a current of 10 mA, and the terminal Y5-2 receives a current of 5 mA, and the data acquisition card 5 transmits this data to the computer 1. The judgment program preset in the computer 1 receives the electric current of 10mA from the terminal Y5-1 of the data acquisition card 5, and receives the electric current of 5mA on the terminal Y5-2, then judges that the wiring is correct, otherwise it is considered that the wiring is wrong.

4. If the computer 1 judges that the wiring is wrong, the experimental operator needs to check the wiring, check and adjust the wiring before performing the above steps until the wiring is correct. If the computer 1 judges that the wiring is correct, it will prompt the experiment operator to proceed to the next step.

5. After completing the "pre-test" according to the computer prompt, press the "start experiment" button. At this time, no current occurs on the data acquisition card 6, and the normally open contacts of the data acquisition card 3 and the data acquisition card 4 are opened again. The data acquisition card 1 is controlled by the program of the computer 1, and the corresponding current can be applied to carry out normal experiments.

By checking the wiring before starting the test, the virtual relay protection device can be protected from burning out the hardware due to wrong wiring.

In the above detection, the reason why only the wiring of Ia and In is checked is that the current of these two wiring terminals is in place. If the wiring is wrong, it will cause damage to the instrument, and even if the passive terminal is wiring wrong, it will not cause damage. A fatal error that damages components. Here, it is designed not to detect, which can firstly save hardware, and secondly, because the wiring method in the relay protection experiment may not be unique, such detection will greatly occupy hardware and software resources.

The present invention is not limited to the above-mentioned embodiments, which are only exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

Claims (2)

1. The utility model provides a multi-functional virtual relay protection experiment outfit, its characterized in that includes: the system comprises a computer 1, a computer 2, a data acquisition card 1, a data acquisition card 2, a data acquisition card 3, a data acquisition card 4, a data acquisition card 5, a data acquisition card 6, a display screen 1 and a display screen 2;

the computer 1 is respectively in communication connection with the computer 2, the data acquisition card 1, the data acquisition card 3, the data acquisition card 5 and the display screen 1; the computer 2 is respectively in communication connection with the computer 1, the data acquisition card 2, the data acquisition card 4, the data acquisition card 6 and the display screen 2; the data acquisition card 1 is respectively in communication connection with the computer 1 and the data acquisition card 3 and is electrically connected with the data acquisition card 2; the data acquisition card 2 is in communication connection with the computer 2 and the data acquisition card 4 and is electrically connected with the data acquisition card 1; the data acquisition card 3 is in communication connection with the computer 1 and the data acquisition card 5; the data acquisition card 4 is in communication connection with the computer 2 and the data acquisition card 6; the data acquisition card 5 is in communication connection with the computer 1; the data acquisition card 6 is in communication connection with the computer 2;

the data acquisition card 1 and the data acquisition card 2 have the input and output functions of analog quantity and digital quantity at the same time; the data acquisition card 3 and the data acquisition card 4 have the input and output functions of digital quantity; the data acquisition card 5 and the data acquisition card 6 have the input and output functions of analog quantity;

a virtual relay protection tester driving program, a display screen 1 driving program and a first wiring checking program are preset in the computer 1; the computer 2 is preset with a virtual relay protection device driving program, a display screen 2 driving program and a second wiring checking program.

2. The multifunctional virtual relay protection experimental complete set of device as claimed in claim 1, wherein the display screen 1 and the display screen 2 are both LED display screens.

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