CN114489002A - Flexible and straight fault simulation system based on FPGA - Google Patents
Flexible and straight fault simulation system based on FPGA Download PDFInfo
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Abstract
The invention provides a flexible and straight fault simulation system based on an FPGA (field programmable gate array), which comprises: the system comprises an optical fiber switching machine, a wave recording board and a background application program module; one end of the optical fiber switching machine is connected with the digital simulator of the current converter through a high-speed optical fiber, and the other end of the optical fiber switching machine is also connected with the valve control through a low-speed optical fiber; the background application program module sends a plurality of fault simulation information to the optical fiber switching machine, the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulator or the valve control, and the converter digital simulator or the valve control carries out fault simulation operation aiming at the fault simulation information; the method can simulate various faults of the modular multilevel converter in the operation process so as to verify whether the valve-controlled control strategy is correct or not, detect the valve-controlled control strategy more quickly and conveniently, and does not need to test on the actual engineering field, thereby reducing the test cost and improving the test efficiency.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a flexible and straight fault simulation system based on an FPGA.
Background
The energy and environmental problems are key problems which need to be faced by human beings for long-term survival and development, the global climate problem is increasingly highlighted along with the continuous acceleration of the industrialization process, and the trend of human development in the future is that new energy replaces the traditional fossil energy. The energy supply and energy demand of China are in a region imbalance phenomenon, wherein new energy such as photovoltaic energy, wind power and the like are mainly distributed in the north and the west of China, the power load center is mainly in the east and the middle, and redundant electric energy needs to be transmitted to the load center in a large-capacity and long-distance mode. UHVAC (Ultra High Voltage Alternating Current) can realize cross-region remote connection of an Alternating Current power grid, but cannot be applied to connection of an island new energy base. Traditional High Voltage Direct Current (HVDC) requires the support of an alternating Current large power grid to successfully carry out phase change and stable operation, and a new energy base is not supported by the alternating Current power grid, so that the traditional HVDC technology cannot be used for outputting new energy.
A VSC (Voltage Source Converter) uses a fully-controlled turn-off device as a switching tube of the Converter, and can turn on and off under the control of a driving trigger signal, realize self-commutation without depending on an external Voltage, and output an expected Voltage waveform. The development of a high-power full-control device IGBT (Insulated-Gate Bipolar Transistor) also provides device support for the application of the VSC in the field of large-capacity power transmission. Because the voltage-resisting capability and the transmission capability of a single IGBT module are limited, and the series connection of a plurality of IGBT modules has the problems of difficult static and dynamic voltage sharing and the like, an MMC (Modular Multilevel Converter) scheme based on a high-power full-control device IGBT is provided. The MMC-based Direct Current transmission technology has no problem of commutation failure, can respectively control active transmission and reactive transmission, is called VSC-HVDC (Voltage Source Converter based High Voltage Direct Current), and is widely applied to occasions such as connecting island new energy bases. The MMC and the valve control transmit voltage and control signals through a large number of low-speed optical fibers, and various faults can be generated in the actual operation process of the system, so that how to correctly judge and process various faults by the valve control is a problem to be solved urgently.
Disclosure of Invention
Based on this, it is necessary to provide an FPGA-based soft and straight fault simulation system capable of simulating multiple faults of a modular multilevel converter during operation to verify whether a valve-controlled control strategy is correct.
A kind of gentle straight fault analog system based on FPGA, including:
the system comprises an optical fiber switching machine, a wave recording board and a background application program module;
the background application program module is connected with the wave recording board through an Ethernet, and the wave recording board is connected with the optical fiber adapter;
one end of the optical fiber switching machine is connected with the digital simulator of the current converter through a high-speed optical fiber, and the other end of the optical fiber switching machine is also connected with the valve control through a low-speed optical fiber;
the background application program module sends various fault simulation information to the optical fiber switching machine, the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulator or the valve control, and the converter digital simulator or the valve control carries out fault simulation operation aiming at the fault simulation information.
The flexible and straight fault simulation system based on the FPGA can simulate various faults of the modular multilevel converter in the operation process so as to verify whether the valve-controlled control strategy is correct or not, detect the valve-controlled control strategy more quickly and conveniently, perform real-time simulation test on flexible and straight full-link faults in a laboratory, and does not need to perform field test in actual engineering, thereby reducing the test cost and improving the test efficiency.
Drawings
FIG. 1 is an application architecture diagram of an FPGA-based soft-straight fault simulation system according to the present invention;
FIG. 2 is an internal architecture diagram of an FPGA-based soft-straight fault simulation system according to the present invention;
FIG. 3 is an internal architecture diagram of a fiber optic transition machine of the present invention;
FIG. 4 is an internal architecture diagram of a valve control plate according to the present invention;
FIG. 5 is a diagram of the internal structure of a wave recording board according to the present invention;
fig. 6 is an internal structure diagram of a main control board according to the present invention.
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 an application architecture diagram of an FPGA-based soft straight fault simulation system, including the following parts: the system comprises an optical fiber switching machine, a wave recording board and a background application program module;
further, the background application program module is connected with the wave recording board through an Ethernet, and the wave recording board is connected with the optical fiber adapter;
one end of the optical fiber switching machine is connected with the digital simulator of the current converter through a high-speed optical fiber, and the other end of the optical fiber switching machine is also connected with the valve control through a low-speed optical fiber;
the fault simulation system is communicated with the valve control through a large number of low-speed optical fibers on one hand, and is communicated with the converter digital simulator through a small number of high-speed optical fibers on the other hand, so that data conversion and transmission between the high-speed optical fibers and the low-speed optical fibers between the converter digital simulator and the valve control are realized.
The background application program module sends various fault simulation information to the optical fiber switching machine, the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulator or the valve control, and the converter digital simulator or the valve control carries out fault simulation operation aiming at the fault simulation information.
In one embodiment, the background application module can send out various kinds of fault simulation information to the optical fiber switching machine through the wave recording board, because the optical fiber switching machine is respectively connected with the converter digital simulator and the valve control, the fault simulation information can be forwarded to the converter digital simulator and the valve control, and the converter digital simulator or the valve control performs fault simulation operation on the fault simulation information.
The invention realizes a flexible and straight fault simulation system based on FPGA, which can simulate various faults of a modular multilevel converter in the operation process to verify whether a valve-controlled control strategy is correct or not, detect the valve-controlled control strategy more quickly and conveniently, perform real-time simulation test of flexible and straight full-link faults in a laboratory, do not need to test on the actual engineering site, reduce the test cost and improve the test efficiency.
Specifically, the simulated fault of the flexible direct current link may include a capacitor voltage overvoltage fault, an uplink and downlink optical fiber communication fault, a high-order energy extraction fault, a power module control board fault, a capacitor voltage measurement deviation fault, a temperature fault, and the like, and may also include other fault simulation information.
In a specific embodiment, aiming at the simulation of the overvoltage fault of the capacitor voltage, the overvoltage threshold of the background application program module is set to the optical fiber switching machine, the optical fiber switching machine compares the voltage value of the sub-module with the overvoltage threshold, if the voltage value of the sub-module is greater than the overvoltage threshold, the voltage of the sub-module is controlled to be reduced, namely, the background application program issues the overvoltage thresholds of n sub-modules to the optical fiber switching machine, the main control board compares the actual voltage value of the sub-module with the overvoltage threshold, once the actual value of the voltage of a certain sub-module is found to be greater than the overvoltage threshold, the IGBT1 and the IGBT2 of the corresponding sub-module are set to be 1, and the voltage of the corresponding sub-module can be rapidly reduced;
aiming at the simulation of uplink and downlink optical fiber communication faults, the background application program module sends optical fiber communication fault information to the valve control plate, the valve control plate closes the corresponding optical fiber according to the optical fiber communication fault information, the valve control plate sends a bypass signal to the corresponding sub-module, and the voltage of the corresponding sub-module is reduced; specifically, the background application program sends optical fiber communication fault information to the optical fiber adapter by taking the valve control plate as a unit, after receiving the information, the valve control plate pinches off the corresponding optical fiber according to the optical fiber communication fault information, and when detecting that the optical fiber has a fault, the valve control plate sends a bypass signal to the corresponding sub-module, so that the voltage of the corresponding sub-module is rapidly reduced;
on the other hand, aiming at the simulation of the high-order energy-taking fault, the background application program module sends a power-on threshold value and a power-off threshold value to the optical fiber switching machine, the optical fiber switching machine judges whether the corresponding sub-module is in a power-on state or a power-off state according to the power-on threshold value and the power-off threshold value, and controls the start or the stop of the uplink optical fiber and the downlink optical fiber; the method comprises the steps that a background application program issues a power-on threshold value and a power-off threshold value of n submodules to an optical fiber switching machine, the optical fiber switching machine compares actual voltage of the submodules with the power-on threshold value and the power-off threshold value, when the voltage of the submodules exceeds the power-on threshold value in the rising process, the corresponding submodules are in a power-on state, the optical fiber switching machine opens uplink and downlink optical fibers of the corresponding submodules and sends the actual voltage of the submodules, and when the voltage of the submodules is lower than the power-off threshold value in the falling process, the corresponding submodules are in a power-off state, and the optical fiber switching machine rapidly closes the corresponding uplink and downlink optical fibers;
aiming at the simulation of the fault of the power module control panel, the background application program module sends the fault information of the control signal to the optical fiber switching machine, the optical fiber switching machine sends the fault information of the control signal to the converter digital simulator, the valve control detects that the voltage of the sub-module is abnormal and then sends a bypass signal to the corresponding sub-module, and the voltage of the sub-module is controlled to be reduced; the background application program sends fault information of n sub-module control signals to the optical fiber switching machine, the optical fiber switching machine replaces real control signals with the received fault information and sends the fault information to the converter digital simulator, and when the valve control detects that the voltage of the sub-module is abnormal, a bypass signal is sent to the corresponding sub-module, so that the voltage of the corresponding sub-module is rapidly reduced;
aiming at the simulation of the capacitance voltage measurement deviation fault, the background application program module sends a sub-module voltage false value to the optical fiber switching machine, the optical fiber switching machine sends the sub-module voltage false value to the valve control, the valve control sends a bypass signal to a corresponding sub-module after detecting the sub-module voltage abnormity, and the voltage of the sub-module is controlled to be reduced; the background application program sends n sub-module voltage false values to the optical fiber switching machine, the optical fiber switching machine replaces the real sub-module voltage with the received sub-module voltage false values and sends the sub-module voltage false values to the valve control, the valve control sends a bypass signal to the corresponding sub-module after detecting the voltage abnormality of the sub-module, and the voltage of the corresponding sub-module is rapidly reduced;
aiming at the simulation of the temperature fault, the background application program module sends temperature fault information to the optical fiber switching machine, the optical fiber switching machine sends the temperature fault information to the valve control, the valve control detects and sends a bypass signal to a corresponding sub-module, and the voltage of the sub-module is controlled to be reduced; namely, the background application program sends temperature fault information to the optical fiber switching machine by taking the valve control plate as a unit, the optical fiber switching machine sends the fault information to the valve control after receiving the temperature fault, the valve control sends a bypass signal to the corresponding sub-module after detecting the temperature fault, and the voltage of the corresponding sub-module is rapidly reduced.
The fault simulation system can simulate various faults such as capacitor voltage overvoltage fault, optical fiber communication fault, capacitor voltage measurement deviation fault, power supply fault, power module driving fault and the like so as to verify whether the valve control can correctly judge and timely process the faults, and solve the problem of fault simulation of the flexible direct current link.
As shown in fig. 2, an internal architecture diagram of an FPGA-based flexible-direct fault simulation system is provided, and specifically, the fault simulation system includes an ethernet switch, the background application module is connected to the wave recording board through the ethernet switch, that is, the background application communicates with a plurality of wave recording boards through the ethernet switch, each wave recording board can communicate with a plurality of optical fiber switches, a high-speed optical fiber 0 on each optical fiber switch communicates with a digital simulator of a converter, and communicates with a plurality of pairs of low-speed optical fibers and a valve controller.
As shown in fig. 3, an internal architecture diagram of an optical fiber adapter is provided, where the optical fiber adapter includes a valve control board, a main control board, and a back board; the main control board is connected to the back plate through a communication interface, and the back plate is connected to the valve control board through the communication interface; the main control board is connected with the current converter digital simulator through a high-speed optical fiber; the valve control plate is connected with the valve control through a low-speed optical fiber;
in one embodiment, the fiber optic switch comprises a computer system, a display screen; the backboard is connected with a computer system through a communication interface, and the display screen is connected with the computer system.
The main control board communicates with the n valve control boards and the computer system through the back board, the communication interface between the main control board and the valve control boards can comprise a high-speed serial port, a differential signal and the like, the main control board communicates with the computer system through the serial port, and the small system communicates with the liquid crystal display screen through the display screen interface.
As shown in fig. 4, an internal architecture diagram of a valve control plate is provided, where the valve control plate includes a high-speed serial port transceiver module, a coding/decoding module, and a fault simulation module; the high-speed serial port transceiver module is connected with the fault simulation module through the encoding and decoding module, the serial port transceiver module is connected with the fault simulation module, and the fault simulation module is connected with the valve control module through a low-speed optical fiber;
specifically, the serial port transceiver module receives fault information from the main control board through a serial port and sends the fault information to the fault simulation module;
furthermore, the high-speed serial port transceiver module receives the capacitor voltage and the state from the main control board through the high-speed serial port and respectively sends the capacitor voltage and the state to the codec module, and a control signal of a submodule of the high-speed serial port transceiver module is sent to the main control board through the high-speed serial port;
in one embodiment, the coding and decoding module carries out serial coding on the voltage and the state of the capacitor and sends the serial coding to the fault simulation module; the coding and decoding module decodes the information sent by the fault simulation module to obtain a control signal, and sends the control signal to the high-speed serial port receiving and sending module; and the fault simulation module conducts on-off processing of the transmitting and receiving signals between the coding and decoding module and the low-speed optical port according to the uplink and downlink optical fiber faults and the high-order energy-taking faults sent by the serial port transmitting and receiving module so as to simulate optical fiber communication faults.
As shown in fig. 5, an internal architecture diagram of a wave recording board is provided, where the wave recording board includes an ethernet framing module, an optical port transceiver module, an ethernet transceiver module, a wave recording module, and a memory, where the optical port transceiver module is connected to the ethernet transceiver module through the ethernet framing module; the Ethernet framing module is connected with the wave recording module, the wave recording module is connected with the memory,
the Ethernet transceiving module receives an Ethernet data frame from a background application program through Ethernet and sends an extracted data packet to the Ethernet framing module, the Ethernet framing module analyzes the received data and judges the function of the data packet, if the data packet is transmitted to the valve control board, the Ethernet framing module sends the data packet to a corresponding optical interface transceiving module, the optical interface transceiving module sends the received data to the main control board through a high-speed optical interface, the optical interface transceiving module sends a received return packet to the Ethernet framing module, the Ethernet framing module performs framing of the Ethernet data packet and sends the data packet to the Ethernet transceiving module, and the Ethernet transceiving module sends the received data frame to the background application program through the Ethernet; if the Ethernet framing module receives the wave recording instruction, the corresponding wave recording parameters are sent to the wave recording module, the wave recording module carries out wave recording on the data received by the optical port transceiving module and stores the data into the memory, and after all the data are stored, the data are read from the memory and then are transmitted to the background application program through the Ethernet.
As shown in fig. 6, an internal architecture diagram of a main control board is provided, where the main control board includes a sub-module voltage deviation value storage module, a threshold comparison module, a real sub-module voltage state storage module, a sub-module voltage fault simulation module, a high-speed serial port transceiver module, a power module fault simulation module, and a high-speed optical port transceiver module;
the high-speed optical port transceiving module is respectively connected with the submodule voltage fault simulation module, the threshold comparison module and the real submodule voltage state storage module; the submodule voltage fault simulation module is respectively connected with the submodule voltage fault simulation module, the threshold comparison module and the real submodule voltage state storage module; the sub-module voltage fault simulation module is connected with the high-speed serial port transceiving module, the high-speed serial port transceiving module is connected with the power module fault simulation module, and the power module fault simulation module is connected with the high-speed optical port transceiving module;
specifically, the main control board receives the sub-module measurement deviation value and the sub-module threshold value through the high-speed optical port, stores the measurement deviation value in the sub-module voltage deviation value storage module, stores the threshold value in the threshold value comparison module, and simultaneously stores the received real sub-module voltage value in the real sub-module voltage state storage module;
the threshold comparison module is used for judging faults of overvoltage, undervoltage and high-order energy taking of the voltage of the sub-module and sending a judgment result to the sub-module voltage fault simulation module;
the submodule voltage fault simulation module is used for judging the type of the sent submodule voltage according to the fault mark and sending the corresponding submodule voltage to the high-speed serial port transceiving module, and the high-speed serial port transceiving module sends the submodule voltage to the valve control plate through the high-speed serial port;
the high-speed serial port transceiving module receives a power module control signal from the valve control plate through a high-speed serial port and sends the control signal to the power module fault simulation module, and the power module fault simulation module sends the processed control signal to the converter digital simulator through a high-speed optical port for connection.
The invention realizes the flexible-direct full link fault simulation function based on the FPGA (Field Programmable Gate Array), and can simulate various faults such as capacitor voltage overvoltage fault, uplink and downlink optical fiber communication fault, high-order energy-taking fault, power module control board fault, capacitor voltage measurement deviation fault, temperature fault and the like.
In the FPGA-based flexible direct fault simulation system of the present invention, a variety of computer devices may be included, the computer devices including a processor, a memory, a communication interface, a display screen, and an input device connected through a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement the data processing steps of an FPGA-based soft-straight fault simulation system. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as an apparatus or computer program product. Accordingly, the present invention may take the form of an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The flexible-straight fault simulation system based on the FPGA provided by the present invention is introduced in detail, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the system and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a gentle straight fault analog system based on FPGA which characterized in that includes:
the system comprises an optical fiber switching machine, a wave recording board and a background application program module;
the background application program module is connected with the wave recording board through an Ethernet, and the wave recording board is connected with the optical fiber adapter;
one end of the optical fiber switching machine is connected with the digital simulator of the current converter through a high-speed optical fiber, and the other end of the optical fiber switching machine is also connected with the valve control through a low-speed optical fiber;
the background application program module sends various fault simulation information to the optical fiber switching machine, the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulator or the valve control, and the converter digital simulator or the valve control carries out fault simulation operation aiming at the fault simulation information.
2. The fault simulation system of claim 1, wherein the fault simulation system comprises an ethernet switch, and the background application module is connected to the wave recording board through the ethernet switch access ethernet.
3. The fault simulation system of claim 1 or 2, wherein the optical fiber adapter comprises a valve control board, a main control board and a back board;
the main control board is connected to the back plate through a communication interface, and the back plate is connected to the valve control board through the communication interface; the main control board is connected with the current converter digital simulator through a high-speed optical fiber; the valve control plate is connected with the valve control through a low-speed optical fiber.
4. The fault simulation system of claim 3, wherein the fiber optic switch comprises a computer system, a display screen;
the backboard is connected with a computer system through a communication interface, and the display screen is connected with the computer system.
5. The fault simulation system of claim 3, wherein the valve control board comprises a high-speed serial port transceiver module, a codec module and a fault simulation module;
the high-speed serial port transceiver module is connected with the fault simulation module through the encoding and decoding module, the serial port transceiver module is connected with the fault simulation module, and the fault simulation module is connected with the valve control module through the low-speed optical fiber.
6. The fault simulation system of claim 3, wherein the main control board comprises a sub-module voltage deviation value storage module, a threshold comparison module, a real sub-module voltage state storage module, a sub-module voltage fault simulation module, a high-speed serial port transceiver module, a power module fault simulation module, and a high-speed optical port transceiver module;
the high-speed optical port transceiving module is respectively connected with the submodule voltage fault simulation module, the threshold comparison module and the real submodule voltage state storage module; the submodule voltage fault simulation module is respectively connected with the submodule voltage fault simulation module, the threshold comparison module and the real submodule voltage state storage module; the sub-module voltage fault simulation module is connected with the high-speed serial port transceiving module, the high-speed serial port transceiving module is connected with the power module fault simulation module, and the power module fault simulation module is connected with the high-speed optical port transceiving module.
7. The fault simulation system of claim 1, wherein the wave recording board comprises an ethernet framing module, an optical port transceiver module, an ethernet transceiver module, a wave recording module and a memory
The optical port transceiver module is connected with the Ethernet transceiver module through the Ethernet framing module; the Ethernet framing module is connected with the wave recording module, and the wave recording module is connected with the memory.
8. The fault simulation system of claim 1, wherein the background application module is over-voltage threshold-limited to the optical fiber switching machine, the optical fiber switching machine compares the sub-module voltage value with the over-voltage threshold, and if the sub-module voltage value is greater than the over-voltage threshold, the voltage of the sub-module is controlled to be reduced;
and/or the background application program module sends optical fiber communication fault information to the valve control plate, the valve control plate closes the corresponding optical fiber according to the optical fiber communication fault information, the valve control plate sends a bypass signal to the corresponding sub-module, and the voltage of the corresponding sub-module is reduced;
and/or the background application program module sends the power-on threshold value and the power-off threshold value to the optical fiber switching machine, and the optical fiber switching machine judges whether the corresponding sub-module is in the power-on state or the power-off state according to the power-on threshold value and the power-off threshold value and controls the start or the close of the uplink optical fiber and the downlink optical fiber;
and/or the background application program module sends the fault information of the control signal to the optical fiber switching machine, the optical fiber switching machine sends the fault information of the control signal to the converter digital simulator, the valve control detects that the voltage of the sub-module is abnormal and then sends a bypass signal to the corresponding sub-module, and the voltage of the sub-module is controlled to be reduced;
and/or the background application program module sends the sub-module voltage false value to the optical fiber switching machine, the optical fiber switching machine sends the sub-module voltage false value to the valve control, the valve control sends a bypass signal to the corresponding sub-module after detecting the voltage abnormality of the sub-module, and the voltage of the sub-module is controlled to be reduced;
and/or the background application program module sends temperature fault information to the optical fiber switching machine, the optical fiber switching machine sends the temperature fault information to the valve control, the valve control detection sends a bypass signal to the corresponding sub-module, and the voltage of the sub-module is controlled to be reduced.
9. The fault simulation system according to claim 5, wherein the serial port transceiver module receives fault information from the main control board through a serial port and transmits the fault information to the fault simulation module;
the high-speed serial port transceiver module receives the capacitor voltage and the state from the main control board through the high-speed serial port and respectively sends the capacitor voltage and the state to the encoding and decoding module, and a control signal of a submodule of the high-speed serial port transceiver module is sent to the main control board through the high-speed serial port;
the coding and decoding module carries out serial coding on the capacitor voltage and the state and sends the capacitor voltage and the state to the fault simulation module; the coding and decoding module decodes the information sent by the fault simulation module to obtain a control signal, and sends the control signal to the high-speed serial port receiving and sending module;
and the fault simulation module conducts on-off processing of the transmitting and receiving signals between the coding and decoding module and the low-speed optical port according to the uplink and downlink optical fiber faults and the high-order energy-taking faults sent by the serial port transmitting and receiving module so as to simulate optical fiber communication faults.
10. The fault simulation system according to claim 6, wherein the main control board receives the sub-module measurement deviation value and the sub-module threshold value through the high-speed optical port, stores the measurement deviation value in the sub-module voltage deviation value storage module, stores the threshold value in the threshold value comparison module, and stores the received real sub-module voltage value in the real sub-module voltage state storage module;
the threshold comparison module is used for judging faults of overvoltage, undervoltage and high-order energy taking of the voltage of the sub-module and sending a judgment result to the sub-module voltage fault simulation module;
the submodule voltage fault simulation module is used for judging the type of the sent submodule voltage according to the fault mark and sending the corresponding submodule voltage to the high-speed serial port transceiving module, and the high-speed serial port transceiving module sends the submodule voltage to the valve control plate through the high-speed serial port;
the high-speed serial port transceiving module receives a power module control signal from the valve control plate through a high-speed serial port and sends the control signal to the power module fault simulation module, and the power module fault simulation module sends the processed control signal to the converter digital simulator through a high-speed optical port for connection.
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