CN115201662A - Thyristor voltage monitoring board detecting system and equipment - Google Patents
Thyristor voltage monitoring board detecting system and equipment Download PDFInfo
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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- G01R31/2836—Fault-finding or characterising
- G01R31/2843—In-circuit-testing
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Abstract
The application relates to a thyristor voltage monitoring board detection system and equipment. Thyristor voltage monitoring board detecting system includes: the low-voltage input interface is used for inputting a low-voltage direct current signal; the output loop is respectively connected with the low-voltage input interface and the input interface of the thyristor voltage monitoring board, and is used for generating a test signal according to the low-voltage direct current signal and outputting the test signal to the input interface of the thyristor voltage monitoring board; the interaction module is used for generating a control instruction; and the control loop is respectively connected with the output interface, the output loop and the interaction module of the thyristor voltage monitoring board and used for generating a control signal based on the control instruction, transmitting the control signal to the output loop so as to control the duration of the test signal and detecting the thyristor voltage monitoring board according to the pulse signal. Because the thyristor voltage monitoring board detection system of this application adopts low voltage direct current signal just can accomplish the detection to thyristor voltage monitoring board to can improve the security.
Description
Technical Field
The application relates to the technical field of electrical equipment detection, in particular to a thyristor voltage monitoring plate detection system and equipment.
Background
With the rapid development of power grid construction, a large batch of extra-high voltage direct current transmission projects are built and put into operation successively. Converter valves are also continuously developed as key equipment in direct current transmission projects. The thyristor is a core component of the converter valve, which determines the current capacity of the converter valve, and a desired system voltage can be obtained by connecting a plurality of thyristors in series. A Thyristor Voltage Monitoring (TVM) board may be used to monitor whether voltages at two ends of a Thyristor are normal, and if the TVM board fails, the safety of the Thyristor may be affected, so that a detection device of the TVM board is generally used to detect the TVM board. However, the current detection equipment for the TVM board needs to detect the TVM board by using a high-voltage power supply, and has a problem of low safety.
Disclosure of Invention
In view of the above, it is necessary to provide a thyristor voltage monitoring board detection system and device capable of improving safety.
In a first aspect, the present application provides a thyristor voltage monitoring plate detection system. Thyristor voltage monitoring board detecting system includes:
the low-voltage input interface is used for inputting a low-voltage direct current signal;
the output loop is respectively connected with the low-voltage input interface and the input interface of the thyristor voltage monitoring board, and is used for generating a test signal according to the low-voltage direct current signal and outputting the test signal to the input interface of the thyristor voltage monitoring board; the thyristor voltage monitoring board generates a pulse signal based on the test signal;
the interaction module is used for generating a control instruction;
the control loop is respectively connected with the output interface of the thyristor voltage monitoring board, the output loop and the interaction module, and is used for generating a control signal based on the control instruction, transmitting the control signal to the output loop so as to control the duration time of the test signal, and detecting the thyristor voltage monitoring board according to the pulse signal;
the interaction module is also used for displaying the detection result of the control loop.
In one embodiment, the output circuit comprises:
the boosting module is connected with the low-voltage input interface and used for receiving the low-voltage direct current signal and boosting the low-voltage direct current signal;
the inversion module is connected with the boosting module and is used for converting the low-voltage direct-current signals subjected to boosting processing into alternating-current signals;
the impedance matching network is connected with the inversion module and used for generating the test signal according to the alternating current signal;
and the output control module is respectively connected with the input end of the thyristor voltage monitoring board, the impedance matching network and the control loop, and is used for receiving the test signal and the control signal, outputting the test signal to the input interface of the thyristor voltage monitoring board, and controlling the duration of the test signal according to the control signal.
In one embodiment, the test signal comprises a first test signal and a second test signal, the thyristor voltage monitoring board comprises a first input interface and a second input interface, and the output module outputs the first test signal to the first input interface of the thyristor voltage monitoring board and outputs the second test signal to the second input interface of the thyristor voltage monitoring board; the impedance matching network includes:
the alternating current voltage division network is respectively connected with the first input interface of the thyristor voltage monitoring board and the inversion module, and is used for generating the first test signal according to the alternating current signal and outputting the first test signal to the first input interface of the thyristor voltage monitoring board;
and the direct current voltage division network is respectively connected with the second input interface of the thyristor voltage monitoring board and the inversion module, and is used for generating the second test signal according to the alternating current signal and outputting the second test signal to the second input interface of the thyristor voltage monitoring board.
In one embodiment, the thyristor voltage monitoring board detection system is further configured with a photoelectric input interface, the photoelectric input interface is connected with the output interface of the thyristor voltage monitoring board, and the output loop comprises:
the pulse width identification module is connected with the photoelectric input interface and used for determining the pulse width of the pulse signal;
the pulse counting module is connected with the photoelectric input interface and used for determining the pulse number of the pulse signal;
the integrated processing module is respectively connected with the output control module, the pulse width identification module, the pulse counting module and the interaction module, and is used for generating the control signal according to the control instruction, outputting the control signal to the output control module, and detecting the thyristor voltage monitoring board according to the pulse width of the pulse signal and the pulse number of the pulse signal to obtain the detection result;
and the state feedback module is connected with the integrated processing module and used for receiving the detection result output by the integrated processing module and feeding the detection result back to the interaction module.
In one embodiment, the interaction module comprises:
the screen display unit is connected with the state feedback module and used for displaying the detection result;
the lamplight unit is connected with the state feedback module and is used for displaying the detection result;
and the button interaction unit is connected with the integrated processing module and used for generating the control instruction and outputting the control instruction to the integrated processing module.
In one embodiment, the thyristor voltage monitoring board detection system further comprises an electrical output interface, and the electrical output interface is respectively connected with the output control module and the input interface of the thyristor voltage monitoring board.
In one embodiment, the thyristor voltage monitoring board detection system further comprises a power supply device, the power supply device is respectively connected with the low-voltage input interface and the output loop, and the power supply device is used for supplying power to the output loop.
In one embodiment, the power supply device includes:
the voltage reduction module is connected with the low-voltage input interface and used for carrying out voltage reduction processing on the low-voltage direct current signal;
and the voltage stabilizing module is respectively connected with the voltage reducing module and the output loop and is used for stabilizing the voltage of the low-voltage direct current signal after voltage reduction.
In one embodiment, the thyristor voltage monitoring board detection system further comprises a battery, the battery is respectively connected with the low-voltage input interface, the power supply device and the control loop, and the battery is used for charging by using the low-voltage direct-current signal and supplying power to the power supply device and the control loop when the low-voltage input interface is powered off.
In one embodiment, the thyristor voltage monitoring board detection system further comprises a battery management unit, and the battery management unit is respectively connected with the low-voltage input interface and the battery and is used for monitoring the state of the battery.
Above-mentioned thyristor voltage monitoring board detecting system includes: the low-voltage input interface is used for inputting a low-voltage direct current signal; the output loop is respectively connected with the low-voltage input interface and the input interface of the thyristor voltage monitoring board, and is used for generating a test signal according to the low-voltage direct current signal and outputting the test signal to the input interface of the thyristor voltage monitoring board; the thyristor voltage monitoring board generates a pulse signal based on the test signal; the interaction module is used for generating a control instruction; the control loop is respectively connected with the output interface of the thyristor voltage monitoring board, the output loop and the interaction module, and is used for generating a control signal based on the control instruction, transmitting the control signal to the output loop so as to control the duration time of the test signal, and detecting the thyristor voltage monitoring board according to the pulse signal; the interaction module is also used for displaying the detection result of the control loop. Because the thyristor voltage monitoring board detection system of this application adopts low voltage direct current signal just can accomplish the detection to thyristor voltage monitoring board to can improve the security.
In a second aspect, the present application further provides a thyristor voltage monitoring board detection device, which is characterized in that the thyristor voltage monitoring board detection device includes a power adapter and a thyristor voltage monitoring board detection system according to any one of the above embodiments; wherein,
the power adapter is connected with the low-voltage input interface and used for converting commercial power into a low-voltage direct current signal and inputting the low-voltage direct current signal to the low-voltage input interface.
The thyristor voltage monitoring board detection device comprises a power adapter and the thyristor voltage monitoring board detection system according to any one of the embodiments; the power adapter is connected with the low-voltage input interface and used for converting mains supply into a low-voltage direct-current signal and inputting the low-voltage direct-current signal to the low-voltage input interface. Because the thyristor voltage monitoring board detection equipment of the application adopts the low-voltage direct current signal to complete the detection of the thyristor voltage monitoring board, thereby improving the safety.
Drawings
FIG. 1 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 2 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 3 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 4 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 5 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 6 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 7 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
FIG. 8 is a schematic structural diagram of a thyristor voltage monitoring board detection system in one embodiment;
fig. 9 is a schematic structural diagram of a thyristor voltage monitoring board detection device in one embodiment.
Description of reference numerals:
the system comprises a 1-thyristor voltage monitoring board detection system, a 10-low voltage input interface, a 20-output loop, a 201-boosting module, a 202-inversion module, a 203-impedance matching network, a 204-output control module, a 2031-alternating current voltage division network, a 2032-direct current voltage division network, a 30-interaction module, a 301-screen display unit, a 302-light unit, a 303-button interaction unit, a 40-control loop, a 401-pulse width identification module, a 402-pulse counting module, a 403-integrated processing module, a 404-state feedback module, a 50-photoelectric input interface, a 60-electric output interface, a 70-power supply device, a 701-voltage reduction module, a 702-voltage stabilization module, an 80-battery, a 90-battery management unit, a 2-thyristor voltage monitoring board, a 21-input interface, a 211-first input interface, a 212-second input interface, a 22-output interface and a 3-power adapter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a thyristor voltage monitoring board detection system 1, comprising: low voltage input interface 10, output circuit 20, interaction module 30 and control circuit 40.
The low-voltage input interface 10 is used for inputting a low-voltage direct-current electrical signal.
Optionally, the voltage of the low-voltage direct-current signal may be a safe voltage in a range of 5V to 50V, and the voltage in the range can ensure safety in the use process. Preferably, the voltage of the low-voltage direct-current signal may be 24V. Of course, the voltage of the low-voltage dc signal may also be other values as long as the voltage can satisfy the usage requirement and the safety of the thyristor voltage monitoring board detection system 1 at the same time, and the embodiment is not limited herein.
It should be noted that, in the conventional technology, the detection device of the thyristor voltage monitoring board 2 needs to use several input power supplies to detect the thyristor voltage monitoring board, and the manufacturing cost is high. The high-voltage power supply is also included, the voltage of the high-voltage power supply can reach 10kV, and if a detector accidentally gets an electric shock in the detection process, safety accidents are easily caused, so that the safety of the traditional technology is low. And this application only needs a power can accomplish the detection to thyristor voltage monitoring board to can reduce cost. And the voltage of the low-voltage direct current signal adopted by the application is safe voltage within the range of 5V-50V, so that the safety can be improved.
The output loop 20 is respectively connected with the low-voltage input interface 10 and the input interface 21 of the thyristor voltage monitoring board 2, and is used for generating a test signal according to the low-voltage direct-current signal and outputting the test signal to the input interface 21 of the thyristor voltage monitoring board 2; the thyristor voltage monitoring board 2 generates a pulse signal based on the test signal.
The Thyristor Voltage Monitoring (TVM) board 2 includes functions of positive Voltage Monitoring, negative Voltage Monitoring, and Thyristor (BOD) Voltage Monitoring.
Alternatively, the width of the pulse signal may be 3 μ s,6 μ s,12 μ s. When the TVM board normally operates, a pulse signal of 6 mu s is output when the waveform of the input voltage crosses zero to a positive half cycle, and the TVM board corresponds to a positive voltage monitoring function; outputting a pulse signal of 3 mus when the waveform of the input voltage crosses zero to a negative half cycle, and corresponding to a negative voltage monitoring function; when the positive voltage of the input voltage reaches 6500V, a pulse signal of 12 mus is output, corresponding to the BOD monitoring function. Therefore, the waveform of the input voltage of the TVM plate during working is simulated by the test signal in an equivalent simulation mode through the output loop 20, so that the TVM plate is triggered to send out pulse signals with different pulse widths. Whether the working state of the TVM plate is normal or not can be judged by detecting pulse signals with different pulse widths sent by the TVM plate.
Alternatively, the generation of different test signals through the output circuit 20 may trigger the TVM board to emit pulse signals with different pulse widths. For example, the TVM board may be triggered by the test signal to simultaneously emit pulse signals with pulse widths of 3 μ s,6 μ s, and 12 μ s, or may be triggered by the test signal to emit pulse signals with pulse widths of only 3 μ s. The TVM board may be triggered to generate pulse signals with different pulse widths according to different test scenarios, which is not limited herein.
And the interaction module 30 is used for generating a control instruction.
And the control loop 40 is respectively connected with the output interface 22 of the thyristor voltage monitoring board 2, the output loop 20 and the interaction module 30, and is used for generating a control signal based on the control instruction, transmitting the control signal to the output loop 20 to control the duration of the test signal, and detecting the thyristor voltage monitoring board 2 according to the pulse signal.
The number of pulse signals with different pulse widths sent by the TVM board and the duration of the test signal generally have a functional relationship. For example, if the test signal triggers the TVM board to continuously emit the pulse signal with the pulse width of 3 μ s, and the duration of the test signal is 5 periods, the number of the pulse signals emitted by the TVM board in the 5 periods is usually fixed, and at this time, it is only required to detect whether the number of the pulse signals corresponding to the pulse signal with the pulse width of 3 μ s is the same as the theoretical calculated value, so as to determine whether the positive voltage monitoring function of the TVM board is normal.
The interactive module 30 is further configured to display the detection result of the control loop 40.
Above-mentioned thyristor voltage monitoring board detecting system 1 includes: a low-voltage input interface 10 for inputting a low-voltage direct-current signal; the output loop 20 is respectively connected with the low-voltage input interface 10 and the input interface 21 of the thyristor voltage monitoring board 2, and is used for generating a test signal according to the low-voltage direct-current signal and outputting the test signal to the input interface 21 of the thyristor voltage monitoring board 2; the thyristor voltage monitoring board 2 generates a pulse signal based on the test signal; an interaction module 30 for generating a control instruction; the control loop 40 is respectively connected with the output interface 22 of the thyristor voltage monitoring board 2, the output loop 20 and the interaction module 30, and is used for generating a control signal based on the control instruction, transmitting the control signal to the output loop 20 to control the duration of the test signal, and detecting the thyristor voltage monitoring board 2 according to the pulse signal; the interactive module 30 is further configured to display the detection result of the control loop 40. Because the thyristor voltage monitoring plate detection system 1 of this application adopts low voltage direct current signal just can accomplish the detection to thyristor voltage monitoring plate 2 to can improve the security.
In one embodiment, as shown in FIG. 2, the output loop 20 includes: a boost module 201, an inverter module 202, an impedance matching network 203, and an output control module 204.
And the boosting module 201 is connected with the low-voltage input interface 10 and is used for receiving the low-voltage direct-current signal and boosting the low-voltage direct-current signal.
For example, taking the low-voltage dc signal as 24V as an example, the boosting module 201 may boost the low-voltage dc signal of 24V into a low-voltage dc signal of 140V. Of course, the voltage of the low-voltage dc signal after the boosting process is still far lower than that of the high-voltage power supply used in the conventional technology although the voltage is increased. In addition, because the boosting module 201 is embedded in the thyristor voltage monitoring plate detection system 1, detection personnel cannot directly contact the system in the detection process, and therefore safety can be guaranteed.
And the inverter module 202 is connected with the boosting module 201 and is used for converting the low-voltage direct-current signals subjected to boosting processing into alternating-current signals.
For example, taking the voltage of the low-voltage dc signal after the voltage boosting process as 140V, the inverter module 202 may convert the 140V low-voltage dc signal into a 100V ac signal.
And the impedance matching network 203 is connected with the inverter module 202 and is used for generating a test signal according to the alternating current signal.
Optionally, the impedance matching network 203 may generate different test signals in an equivalent simulation manner, so as to trigger the TVM board to generate pulse signals with different pulse widths.
And the output control module 204 is connected with the input end of the thyristor voltage monitoring board 2, the impedance matching network 203 and the control loop 40, and is configured to receive the test signal and the control signal, output the test signal to the input interface 21 of the thyristor voltage monitoring board 2, and control the duration of the test signal according to the control signal.
Optionally, the output control module 204 may control on/off of the test signal according to the control signal, so as to control the duration of the test signal.
In one embodiment, the test signal includes a first test signal and a second test signal, as shown in fig. 3, the thyristor voltage monitoring board 2 includes a first input interface 211 and a second input interface 212, the output module outputs the first test signal to the first input interface 211 of the thyristor voltage monitoring board 2, and outputs the second test signal to the second input interface 212 of the thyristor voltage monitoring board 2; the impedance matching network 203 includes an ac voltage divider network 2031 and a dc voltage divider network 2032. The alternating-current voltage dividing network 2031 is connected to the first input interface 211 of the thyristor voltage monitoring board 2 and the inverter module 202, and is configured to generate a first test signal according to the alternating-current signal and output the first test signal to the first input interface 211 of the thyristor voltage monitoring board 2; the dc voltage dividing network 2032 is connected to the second input interface 212 of the thyristor voltage monitoring board 2 and the inverter module 202, respectively, and is configured to generate a second test signal according to the ac signal, and output the second test signal to the second input interface 212 of the thyristor voltage monitoring board 2.
It should be noted that, the TVM board may generally include two input interfaces 21, and the power source normally input to the TVM board is an ac power of 2kV and 50Hz, and the ac power is input to other circuits of the TVM board after being divided by the dc voltage and the ac voltage so that the TVM board normally operates. In the present application, through an equivalent simulation mode, the dc voltage dividing network 2032 and the ac voltage dividing network 2031 included in the impedance matching network 203 simulate a first test signal and a second test signal required for normal operation of the TVM board, so as to trigger the TVM board to generate pulse signals with different pulse widths.
In one embodiment, as shown in fig. 4, the thyristor voltage monitoring board detection system 1 is further configured with an optical-electrical input interface 50, the optical-electrical input interface 50 is connected to the output interface 22 of the thyristor voltage monitoring board 2, and the output circuit 20 includes: a pulse width identification module 401, a pulse counting module 402, an integrated processing module 403, and a state feedback module 404.
And the pulse width identification module 401 is connected with the photoelectric input interface 50 and is used for determining the pulse width of the pulse signal.
And the pulse counting module 402 is connected with the photoelectric input interface 50 and used for determining the pulse number of the pulse signal.
Among other things, the optoelectronic input interface 50 can be used to convert a pulse signal in the form of an optical pulse into a pulse signal in the form of an electrical pulse. The pulse signal generated by the TVM board is a pulse signal in the form of an optical pulse, and the pulse signal that can be received by the pulse width recognition module 401 and the pulse counting module 402 is a pulse signal in the form of an electrical pulse, so that the pulse signal needs to be converted by the optical-electrical input interface 50.
And the integrated processing module 403 is connected with the output control module 204, the pulse width recognition module 401, the pulse counting module 402 and the interaction module 30, and is configured to generate a control signal according to the control instruction, output the control signal to the output control module 204, and detect the thyristor voltage monitoring board 2 according to the pulse width of the pulse signal and the pulse number of the pulse signal, so as to obtain a detection result.
Optionally, the integrated processing module 403 may include an Advanced RISC Machine (ARM) chip. For example, the integrated processing module 403 may be an ARM32 chip.
Optionally, the pulse width of the pulse signal of the integrated processing module 403 determines the abnormal function of the TVM board, for example, if the pulse width of the pulse signal theoretically sent by the TVM board is 3 μ s, but the pulse width of the pulse signal actually sent by the TVM board is 2 μ s, the integrated processing module 403 may determine that the positive voltage detection function of the TVM board is abnormal.
Optionally, the integrated processing module 403 may determine the duration of the test signal according to the control instruction sent by the interaction module 30, as above, since the duration of the test signal has a functional relationship with the width of the pulse signal, the integrated processing module 403 may calculate the theoretical pulse number of the pulse signal according to the duration of the test signal, and compare the theoretical pulse number of the pulse signal with the pulse number of the received pulse signal, if the two are consistent, it is determined that the TVM board is normal, and if the two are not consistent, it is determined that the TVM board is abnormal, so as to obtain the detection result.
Further, the integrated processing module 403 may also determine the abnormal function of the TVM board according to the pulse width of the pulse signal and the corresponding pulse number, for example, if the integrated processing module 403 determines that the theoretical pulse number of the pulse signal with the pulse width of 3 μ s does not coincide with the received pulse number, it is determined that the positive voltage detection function of the TVM board is abnormal.
And a state feedback module 404, connected to the integrated processing module 403, configured to receive the detection result output by the integrated processing module 403, and feed the detection result back to the interaction module 30.
In one embodiment, as shown in FIG. 5, the interaction module 30 includes: a screen display unit 301, a light unit 302, and a button interaction unit 303.
And the screen display unit 301 is connected with the state feedback module 404 and is used for displaying the detection result.
The detection result may include a missing pulse width and a missing pulse number of the pulse signal. Of course, the detection result may also include other information, and this embodiment is not limited herein.
Alternatively, the screen display unit 301 may include an LCD display screen.
And the light unit 302 is connected with the state feedback module 404 and is used for displaying the detection result.
Alternatively, the light unit 302 may include an LED light. Further, the light unit 302 may include three different color indicator lights to display different operation states and detection results. For example, a red indicator light may indicate abnormal testing, a green indicator light may indicate normal testing, and a yellow indicator light may indicate testing.
And the button interaction unit 303 is connected to the integrated processing module 403, and is configured to generate a control instruction and output the control instruction to the integrated processing module 403.
Alternatively, the tester may input a control command through the button interaction unit 303 to control the duration of the test signal.
In one embodiment, as shown in fig. 6, the thyristor voltage monitoring board detection system 1 further includes an electrical output interface 60, and the electrical output interface 60 is connected to the output control module 204 and the input interface 21 of the thyristor voltage monitoring board 2, respectively.
In an embodiment, with continuing reference to fig. 6, the thyristor voltage monitoring board detecting system 1 further includes a power supply device 70, the power supply device 70 is respectively connected to the low voltage input interface 10 and the output circuit 20, and the power supply device 70 is configured to supply power to the output circuit 20.
Alternatively, the power supply device 70 may be connected to each module included in the output circuit 20 to supply power to each module included in the output circuit 20.
In one embodiment, with continued reference to fig. 6, the power supply device 70 includes a voltage step-down module 701 and a voltage regulation module 702.
And the voltage reduction module 701 is connected with the low-voltage input interface 10 and is used for performing voltage reduction processing on the low-voltage direct current signal.
It should be noted that, since the voltage required by the output loop 20 is usually lower than the low-voltage dc signal, the voltage reduction module 701 is further required to perform voltage reduction processing on the low-voltage dc signal.
Optionally, taking the low-voltage dc signal as 24V as an example, the voltage-reducing module 701 may convert the low-voltage dc signal from 24V to 5V or 3.3V, so as to meet the power consumption requirement of each module of the output circuit 20.
And the voltage stabilizing module 702 is respectively connected with the voltage reducing module 701 and the output loop 20, and is used for performing voltage stabilizing processing on the low-voltage direct-current signals subjected to voltage reducing processing.
Since the power supply device 70 of the present application can complete power supply to the output circuit 20 by using the low-voltage dc signal, an additional power supply source is not required, and thus the cost can be further reduced.
In one embodiment, as shown in fig. 7, the thyristor voltage monitoring board detection system 1 further includes a battery 80, the battery 80 is respectively connected to the low voltage input interface 10, the power supply device 70, and the control loop 40, and the battery 80 is configured to be charged by a low voltage dc signal and to supply power to the power supply device 70 and the control loop 40 when the low voltage input interface 10 is powered off.
Optionally, the low-voltage electrical signal output by the battery 80 is direct current, and the voltage range is 5V-50V. Preferably, the low voltage signal output by the battery 80 is a 24V low voltage electrical signal.
It should be noted that, in the conventional art, because a high-voltage power supply needs to be used, if there is no high-voltage power supply in the overhaul field, the TVM plate needs to be detached first and then brought back for detection, and the TVM plate needs to be installed again after the detection is finished, so that the conventional art still has the problem of low convenience. And thyristor voltage monitoring board detecting system 1 of this application is owing to still built-in battery 80, both can directly utilize the low pressure direct current signal of low pressure input interface 10 input to detect when using, also can utilize the low-voltage signal of battery 80 output to detect when low pressure input interface 10 does not have input, consequently can directly carry thyristor voltage monitoring board detecting system 1 to the detection scene, can be about to TVM board installation back immediately after carrying out the function detection to the TVM board that dismantles, thereby this application can also improve the convenience. In addition, because thyristor voltage monitoring board detecting system 1 simple structure, volume of this application are light and handy, can put into the knapsack and carry, consequently can further improve the convenience.
In one embodiment, as shown in fig. 8, the thyristor voltage monitoring board detecting system 1 further includes a battery management unit 90, and the battery management unit 90 is connected to the low voltage input interface 10 and the battery 80 respectively for monitoring the state of the battery 80.
Alternatively, the battery management unit 90 may be configured to monitor the temperature, the charge/discharge condition, the remaining capacity, and other conditions of the battery 80.
In an embodiment, as shown in fig. 9, the present application further provides a thyristor voltage monitoring board detection device, which is characterized in that the thyristor voltage monitoring board detection device includes a power adapter 3 and the thyristor voltage monitoring board detection system 1 according to any one of the above embodiments; wherein,
the power adapter 3 is connected to the low-voltage input interface 10, and is configured to convert the commercial power into a low-voltage dc signal and input the low-voltage dc signal to the low-voltage input interface 10.
It can be understood that, since the commercial power is usually used in a daily electricity environment, and the commercial power is usually 220V alternating current (of course, the voltage of the commercial power may be other values), the commercial power needs to be converted into a low-voltage direct current signal by the power adapter 3. Optionally, taking the example that the commercial power is 220V alternating current and the low-voltage direct-current signal is 24V direct current, the power adapter 3 may convert the commercial power of 220V alternating current into a low-voltage direct-current signal of 24V direct current, so as to input the low-voltage direct-current signal of 24V direct current into the low-voltage input interface 10 of the thyristor voltage monitoring board detection system 1.
Optionally, the low-voltage input interface 10 may also be directly connected to other low-voltage dc power supplies, and at this time, the power adapter 3 is not needed, as long as it is ensured that the input is a low-voltage dc signal meeting requirements, which is not limited herein in this embodiment.
Optionally, the power adapter 3 may further include a voltage-reducing circuit module and a rectifying and filtering module, and the commercial power may be subjected to voltage reduction processing by the voltage-reducing circuit module, and then subjected to rectifying and filtering processing by the rectifying and filtering module to be finally converted into a low-voltage direct-current signal.
The thyristor voltage monitoring board detection device comprises a power adapter 3 and the thyristor voltage monitoring board detection system 1 of any one of the embodiments; the power adapter 3 is connected to the low-voltage input interface 10, and is configured to convert the commercial power into a low-voltage dc signal and input the low-voltage dc signal to the low-voltage input interface 10. Because the thyristor voltage monitoring board detection equipment of this application adopts low voltage direct current signal just can accomplish the detection to thyristor voltage monitoring board 2 to can improve the security.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (11)
1. The utility model provides a thyristor voltage monitoring board detecting system which characterized in that, thyristor voltage monitoring board detecting system includes:
the low-voltage input interface is used for inputting a low-voltage direct current signal;
the output loop is respectively connected with the low-voltage input interface and the input interface of the thyristor voltage monitoring board, and is used for generating a test signal according to the low-voltage direct current signal and outputting the test signal to the input interface of the thyristor voltage monitoring board; the thyristor voltage monitoring board generates a pulse signal based on the test signal;
the interaction module is used for generating a control instruction;
the control loop is respectively connected with the output interface of the thyristor voltage monitoring board, the output loop and the interaction module, and is used for generating a control signal based on the control instruction, transmitting the control signal to the output loop so as to control the duration time of the test signal, and detecting the thyristor voltage monitoring board according to the pulse signal;
the interaction module is also used for displaying the detection result of the control loop.
2. The thyristor voltage monitoring board detection system of claim 1, wherein the output loop comprises:
the boosting module is connected with the low-voltage input interface and used for receiving the low-voltage direct-current signal and boosting the low-voltage direct-current signal;
the inversion module is connected with the boosting module and used for converting the low-voltage direct-current signals subjected to boosting processing into alternating-current signals;
the impedance matching network is connected with the inversion module and used for generating the test signal according to the alternating current signal;
and the output control module is respectively connected with the input end of the thyristor voltage monitoring board, the impedance matching network and the control loop, and is used for receiving the test signal and the control signal, outputting the test signal to the input interface of the thyristor voltage monitoring board, and controlling the duration of the test signal according to the control signal.
3. The thyristor voltage monitoring board detection system of claim 2, wherein the test signal comprises a first test signal and a second test signal, the thyristor voltage monitoring board comprises a first input interface and a second input interface, the output module outputs the first test signal to the first input interface of the thyristor voltage monitoring board and outputs the second test signal to the second input interface of the thyristor voltage monitoring board; the impedance matching network includes:
the alternating current voltage division network is respectively connected with the first input interface of the thyristor voltage monitoring board and the inversion module, and is used for generating the first test signal according to the alternating current signal and outputting the first test signal to the first input interface of the thyristor voltage monitoring board;
and the direct current voltage division network is respectively connected with the second input interface of the thyristor voltage monitoring board and the inversion module, and is used for generating the second test signal according to the alternating current signal and outputting the second test signal to the second input interface of the thyristor voltage monitoring board.
4. The thyristor voltage monitoring board detection system of claim 2, wherein the thyristor voltage monitoring board detection system is further configured with a photoelectric input interface, the photoelectric input interface is connected with an output interface of the thyristor voltage monitoring board, and the output loop comprises:
the pulse width identification module is connected with the photoelectric input interface and used for determining the pulse width of the pulse signal;
the pulse counting module is connected with the photoelectric input interface and used for determining the pulse number of the pulse signal;
the integrated processing module is respectively connected with the output control module, the pulse width identification module, the pulse counting module and the interaction module, and is used for generating the control signal according to the control instruction, outputting the control signal to the output control module, and detecting the thyristor voltage monitoring board according to the pulse width of the pulse signal and the pulse number of the pulse signal to obtain the detection result;
and the state feedback module is connected with the integrated processing module and used for receiving the detection result output by the integrated processing module and feeding back the detection result to the interaction module.
5. The thyristor voltage monitor board detection system of claim 4, wherein the interaction module comprises:
the screen display unit is connected with the state feedback module and used for displaying the detection result;
the lamplight unit is connected with the state feedback module and is used for displaying the detection result;
and the button interaction unit is connected with the integrated processing module and used for generating the control instruction and outputting the control instruction to the integrated processing module.
6. The thyristor voltage monitoring board detection system of claim 2, further comprising an electrical output interface, the electrical output interface being connected to the output control module and the input interface of the thyristor voltage monitoring board, respectively.
7. The thyristor voltage monitoring board detection system of claim 1, further comprising a power supply device, the power supply device being connected to the low voltage input interface and the output loop, respectively, the power supply device being configured to supply power to the output loop.
8. The thyristor voltage monitoring board detection system of claim 7, wherein the power supply means comprises:
the voltage reduction module is connected with the low-voltage input interface and used for carrying out voltage reduction processing on the low-voltage direct current signal;
and the voltage stabilizing module is respectively connected with the voltage reducing module and the output loop and is used for stabilizing the voltage of the low-voltage direct current signal after voltage reduction processing.
9. The thyristor voltage monitoring board detection system according to claim 7, further comprising a battery, wherein the battery is connected to the low voltage input interface, the power supply device, and the control loop, and the battery is configured to be charged by the low voltage dc signal and to supply power to the power supply device and the control loop when the low voltage input interface is powered off.
10. The thyristor voltage monitoring board detection system of claim 9, further comprising a battery management unit, the battery management unit being connected to the low voltage input interface and the battery, respectively, for monitoring a state of the battery.
11. A thyristor voltage monitoring board detection device, characterized in that the thyristor voltage monitoring board detection device comprises a power adapter and a thyristor voltage monitoring board detection system according to any one of claims 1-10; wherein,
the power adapter is connected with the low-voltage input interface and used for converting commercial power into a low-voltage direct current signal and inputting the low-voltage direct current signal to the low-voltage input interface.
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