CN114489002B - Flexible-straight fault simulation system based on FPGA - Google Patents
Flexible-straight fault simulation system based on FPGA Download PDFInfo
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- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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Abstract
The invention provides a flexible-straight fault simulation system based on an FPGA, which comprises: the optical fiber adapter, the wave recording plate and the background application program module; one end of the optical fiber adapter is connected with the converter digital simulator through a high-speed optical fiber, and the other end of the optical fiber adapter 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 adapter, the optical fiber adapter 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 on the fault simulation information; the method can simulate various faults of the modularized multi-level converter in the operation process so as to verify whether the valve control strategy is correct, so that the valve control strategy is detected more quickly and conveniently, the actual engineering field test is not needed, the test cost is reduced, and the test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a flexible-straight fault simulation system based on an FPGA.
Background
The energy and environment problems are key problems facing the long-term survival and development of human beings, the global climate problems are increasingly prominent along with the continuous acceleration of the industrialization process, and new energy is a trend of human development in the future instead of traditional fossil energy. The energy supply and the energy demand of China show the phenomenon of regional unbalance, wherein new energy sources such as photovoltaic, wind power and the like are mainly distributed in the north part and the west part of the country, the electric load center is mainly in the east part and the middle part, and redundant electric energy is required to be transmitted to the load center in a large-capacity and long-distance mode. UHVAC (Ultra High Voltage Alternating Current ) can realize the cross-region long-distance connection of an alternating current power grid, but cannot be applied to the connection of an island new energy base. The traditional HVDC (High Voltage Direct Current ) needs to have the support of an alternating current large power grid to successfully change phase and stably run, and the new energy base has no support of the alternating current power grid, so that the traditional HVDC technology cannot be used for outputting new energy.
The VSC (Voltage Source Converter, voltage type converter) uses the fully-controlled turn-off device as a switching tube of the converter, can realize on and off under the control action of a drive trigger signal, realizes self-commutation without depending on external voltage, and outputs expected voltage waveforms. The development of high-power fully-controlled device IGBT (Insulated gate bipolar transistor) also provides device support for VSC application in the field of high-capacity power transmission. Because the voltage-withstanding capability and the transmission capability of a single IGBT module are limited, and a plurality of IGBT modules are connected in series and have the problems of difficult static voltage equalizing, difficult dynamic voltage equalizing and the like, an MMC (Modular Multilevel Converter, modularized multi-level converter) scheme based on a high-power fully-controlled device IGBT is proposed. The direct current transmission technology based on MMC has no commutation failure problem, can control active and reactive power transmission respectively, is called VSC-HVDC (Voltage Source Converter based High Voltage Direct Current, flexible direct current), and has been widely applied to occasions such as connection 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 urgent problem to be solved.
Disclosure of Invention
Based on the above, it is necessary to provide a flexible-straight fault simulation system based on FPGA, which can simulate various faults of a modular multilevel converter during operation to verify whether a valve-controlled control strategy is correct.
A flexible-to-straight fault simulation system based on an FPGA, comprising:
the optical fiber adapter, the wave recording plate and the 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 adapter is connected with the converter digital simulator through a high-speed optical fiber, and the other end of the optical fiber adapter 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, and the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulation machine or the valve control, and the converter digital simulation machine or the valve control performs fault simulation operation on the fault simulation information.
The flexible direct fault simulation system based on the FPGA can simulate various faults of the modularized multi-level converter in the operation process so as to verify whether the control strategy of the valve control is correct, detect the control strategy of the valve control more quickly and conveniently, perform real-time simulation test of flexible direct full-link faults in a laboratory, and not need to test in the actual engineering field, 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 in the present invention;
FIG. 2 is an internal architecture diagram of an FPGA-based soft-straight fault simulation system in accordance with the present invention;
FIG. 3 is a schematic diagram of an optical fiber adapter according to the present invention;
FIG. 4 is an internal architecture diagram of a valve control plate according to the present invention;
FIG. 5 is a schematic diagram of an internal structure of a recorder board according to the present invention;
fig. 6 is an internal architecture diagram of a main control board in the present invention.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In one embodiment, as shown in fig. 1, an application architecture diagram of an FPGA-based soft-straight fault simulation system is provided, including the following parts: the optical fiber adapter, the wave recording plate and the 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 adapter is connected with the converter digital simulator through a high-speed optical fiber, and the other end of the optical fiber adapter 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, and is communicated with the converter digital simulator through a small number of high-speed optical fibers, so that data conversion transmission between the high-speed optical fibers and the low-speed optical fibers between the converter digital simulator and the valve control is realized.
The background application program module sends various fault simulation information to the optical fiber switching machine, and the optical fiber switching machine forwards the corresponding fault simulation information to the converter digital simulation machine or the valve control, and the converter digital simulation machine or the valve control performs fault simulation operation on the fault simulation information.
In one embodiment, the background application program module can send out various fault simulation information, and the fault simulation information is sent to the optical fiber switching machine through the wave recording board, and 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.
According to the invention, the FPGA-based flexible-straight fault simulation system is realized, and can simulate various faults of the modularized multi-level converter in the operation process so as to verify whether the valve control strategy is correct, so that the valve control strategy can be detected more quickly and conveniently, real-time simulation test of flexible-straight full-link faults can be performed in a laboratory, the actual engineering field test is not needed, the test cost is reduced, and the test efficiency is improved.
Specifically, the analog faults of the flexible direct current link can include capacitor voltage overvoltage faults, uplink and downlink optical fiber communication faults, high-order energy taking faults, power module control board faults, capacitor voltage measurement deviation faults, temperature faults and the like, and other fault analog information can be included, so that the invention is not limited excessively.
In a specific embodiment, for the simulation of the overvoltage fault of the capacitor voltage, the background application program module sends an overvoltage threshold value to the optical fiber adapter, the optical fiber adapter compares the voltage value of the submodule with the overvoltage threshold value, if the voltage value of the submodule is larger than the overvoltage threshold value, the voltage of the submodule is controlled to be reduced, namely, the background application program issues the overvoltage threshold value of n submodules to the optical fiber adapter, the main control board compares the actual voltage value of the submodule with the overvoltage threshold value, and once the actual value of the voltage of a certain submodule is found to be larger than the overvoltage threshold value, the IGBT1 and the IGBT2 of the corresponding submodule are set to be 1, and the voltage of the corresponding submodule is rapidly reduced;
for the simulation of uplink and downlink optical fiber communication faults, the background application program module sends optical fiber communication fault information to a valve control board, the valve control board closes corresponding optical fibers according to the optical fiber communication fault information, and the valve control sends bypass signals to corresponding sub-modules to reduce the voltages of the corresponding sub-modules; specifically, the background application program sends optical fiber communication fault information to the lower part of the optical fiber adapter by taking the valve control board as a unit, after the valve control board receives the information, the corresponding optical fiber is pinched off according to the optical fiber communication fault information, and after the valve control detects the optical fiber fault, a bypass signal is sent to the corresponding sub-module, so that the voltage of the corresponding sub-module can be rapidly reduced;
On the other hand, aiming at the simulation of the high-order energy taking fault, a background application program module sends an electricity obtaining threshold value and an electricity losing threshold value to an optical fiber switching machine, and the optical fiber switching machine judges that a corresponding sub-module is in an electricity obtaining state or an electricity losing state according to the electricity obtaining threshold value and the electricity losing threshold value and controls the starting or closing of uplink and downlink optical fibers; the background application program sends power-on threshold values and power-off threshold values of n sub-modules to the optical fiber switching machine, the optical fiber switching machine compares the actual sub-module voltage with the power-on threshold values and the power-off threshold values, when the sub-module voltage exceeds the power-on threshold values in the rising process, the corresponding sub-modules are in a power-on state, the optical fiber switching machine opens the uplink optical fibers and the downlink optical fibers of the corresponding sub-modules, sends the actual sub-module voltage, when the sub-module voltage is lower than the power-off threshold values in the falling process, the corresponding sub-modules are in a power-off state, and the optical fiber switching machine rapidly closes the corresponding uplink optical fibers and the downlink optical fibers;
Aiming at the simulation of the faults of the power module control board, the background application program module sends fault information of control signals to the optical fiber switching machine, the optical fiber switching machine sends the fault information of the control signals to the converter digital simulator, and after valve control detects that the voltage of the submodule is abnormal, a bypass signal is sent to the corresponding submodule to control the voltage of the submodule to be reduced; the background application program transmits fault information of n submodule control signals to the optical fiber switching machine, the optical fiber switching machine replaces real control signals with the received fault information and transmits the real control signals to the converter digital simulator, and after valve control detects that the submodule voltage is abnormal, bypass signals are transmitted to corresponding submodules, so that the voltage of the corresponding submodule can be rapidly reduced;
Aiming at the simulation of capacitance voltage measurement deviation faults, a background application program module sends a false value of the voltage of the submodule to an optical fiber adapter, the optical fiber adapter sends the false value of the voltage of the submodule to a valve control, and the valve control sends a bypass signal to a corresponding submodule after detecting the abnormal voltage of the submodule to control the voltage reduction of the submodule; the background application program transmits n sub-module voltage false values to the optical fiber switching machine, the optical fiber switching machine replaces real sub-module voltage with the received sub-module voltage false values and transmits the real sub-module voltage to the valve control, and the valve control transmits bypass signals to corresponding sub-modules after detecting that the sub-module voltage is abnormal, so that the corresponding sub-module voltage can be rapidly reduced;
For the simulation of temperature faults, 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 bypass signals to the corresponding sub-modules, and the voltage of the sub-modules is controlled to be reduced; the background application program takes the valve control board as a unit to send temperature fault information to the optical fiber switching machine, the optical fiber switching machine sends the fault information to the valve control after receiving the temperature fault, and the valve control sends bypass signals to corresponding sub-modules after detecting the temperature fault, so that the voltage of the corresponding sub-modules can be rapidly reduced.
The fault simulation system can simulate various faults such as capacitor voltage overvoltage faults, optical fiber communication faults, capacitor voltage measurement deviation faults, power module driving faults and the like so as to verify whether the valve control can accurately judge and timely process the faults, and solves the fault simulation problem of the flexible direct current link.
As shown in fig. 2, an internal architecture diagram of a flexible-straight fault simulation system based on an FPGA is provided, specifically, the fault simulation system includes an ethernet switch, the background application module is connected with the wave recording boards through ethernet access by 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, and the high-speed optical fiber 0 on each optical fiber switch communicates with the converter digital simulator, and simultaneously communicates with the valves through a plurality of pairs of low-speed optical fibers.
As shown in fig. 3, an internal architecture diagram of an optical fiber switching machine is provided, where the optical fiber switching machine includes a valve control board, a main control board and a back board; the main control board is connected to the backboard through a communication interface, and the backboard is connected to the valve control board through the communication interface; the main control board is connected with the converter digital simulator through a high-speed optical fiber; the valve control board is connected with the valve control through a low-speed optical fiber;
In one embodiment, the optical fiber adapter comprises a computer system and a display screen; the backboard is connected with the computer system through a communication interface, and the display screen is connected with the computer system.
In the invention, the main control board is communicated 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 serial port, differential signals and the like, the main control board is communicated with the computer system through the serial port, and the small-sized system is communicated with the liquid crystal display screen through the display screen interface.
As shown in fig. 4, an internal architecture diagram of a valve control board is provided, where the valve control board includes a high-speed serial port transceiver module, a codec module and a fault simulation module; the high-speed serial port receiving and transmitting module is connected with the fault simulation module through the encoding and decoding module, the serial port receiving and transmitting module is connected with the fault simulation module, and the fault simulation module is connected with the valve control through the low-speed optical fiber;
specifically, the serial port transceiver module receives fault information from the main control board through the serial port and sends the fault information to the fault simulation module;
Further, the high-speed serial port receiving and transmitting module receives capacitor voltage and state from the main control board through the high-speed serial port and respectively transmits the capacitor voltage and state to the encoding and decoding module, and the high-speed serial port receiving and transmitting module transmits control signals of the sub-modules to the main control board through the high-speed serial port;
In one embodiment, the codec module encodes the capacitor voltage and status serially to a fault simulation module; the encoding 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 transmitting module; the fault simulation module conducts the on-off processing of the receiving and transmitting signals between the encoding 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 receiving and transmitting module so as to simulate the 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 receiving and transmitting module receives Ethernet data frames from a background application program through the Ethernet, and sends the extracted data packets to the Ethernet framing module, the Ethernet framing module analyzes the received data and judges the function of the data packets, if the data packets are transmitted to the valve control board, the Ethernet framing module sends the data packets to the corresponding optical port receiving and transmitting module, the optical port receiving and transmitting module sends the received data to the main control board through a high-speed optical port, the optical port receiving and transmitting module sends the received return packets to the Ethernet framing module, and the Ethernet framing module carries out framing of the Ethernet data packets and sends the Ethernet frames to the Ethernet receiving and transmitting module, and the Ethernet receiving and transmitting module sends the received data frames 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 records waves of the data received by the optical port receiving and transmitting module and stores the waves into the memory, and after all the waves are stored, the data are read out 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 submodule voltage deviation value storage module, a threshold comparison module, a real submodule voltage state storage module, a submodule 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 receiving and transmitting 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 receiving and transmitting module, the high-speed serial port receiving and transmitting module is connected with the power module fault simulation module, and the power module fault simulation module is connected with the real sub-module voltage state storage 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 carrying out fault judgment of overvoltage, undervoltage and high-order energy taking of the voltage of the submodule and sending a judgment result to the submodule voltage fault simulation module;
The submodule voltage fault simulation module is used for judging the type of the transmitted submodule voltage according to the fault sign, transmitting the corresponding submodule voltage to the high-speed serial port receiving and transmitting module, and transmitting the submodule voltage to the valve control board through the high-speed serial port by the high-speed serial port receiving and transmitting module;
The high-speed serial port receiving and transmitting module receives a power module control signal from the valve control board through the 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 the high-speed optical port for connection.
The invention realizes the soft-direct full-link fault simulation function based on the FPGA (Field Programmable GATE ARRAY ), and can simulate various faults such as capacitor voltage overvoltage faults, uplink and downlink optical fiber communication faults, high-order energy taking faults, power module control board faults, capacitor voltage measurement deviation faults, temperature faults and the like.
In the FPGA-based flexible straight fault simulation system of the present invention, various computer devices may be included, 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 includes a non-volatile 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 the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by a processor, performs 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, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be 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 invention may be provided as an apparatus or a 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. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.
The flexible straight fault simulation system based on the FPGA provided by the invention is described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the invention, and the description of the above examples is only used for helping to understand the system and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (7)
1. A flexible-to-straight fault simulation system based on an FPGA, comprising:
the optical fiber adapter, the wave recording plate and the 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 adapter is connected with the converter digital simulator through a high-speed optical fiber, and the other end of the optical fiber adapter 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 adapter, the optical fiber adapter 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 on the fault simulation information;
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 backboard through a communication interface, and the backboard is connected to the valve control board through the communication interface; the main control board is connected with the converter digital simulator through a high-speed optical fiber; the valve control board is connected with the valve control through a low-speed optical fiber;
The valve control board comprises a high-speed serial port receiving and transmitting module, a coding and decoding module and a fault simulation module;
the high-speed serial port receiving and transmitting module is connected with the fault simulation module through the encoding and decoding module, the serial port receiving and transmitting module is connected with the fault simulation module, and the fault simulation module is connected with the valve control through the low-speed optical fiber;
The main control board comprises a submodule voltage deviation value storage module, a threshold comparison module, a real submodule voltage state storage module, a submodule voltage fault simulation module, a high-speed serial port receiving and transmitting module, a power module fault simulation module and a high-speed optical port receiving and transmitting module;
the high-speed optical port receiving and transmitting 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 submodule voltage fault simulation module is connected with the high-speed serial port receiving and transmitting module, the high-speed serial port receiving and transmitting module is connected with the power module fault simulation module, and the power module fault simulation module is connected with the real submodule voltage state storage module.
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 plate by accessing ethernet through the ethernet switch.
3. The fault simulation system of claim 1, wherein the fiber optic adapter comprises a computer system, a display screen;
The backboard is connected with the computer system through a communication interface, and the display screen is connected with the computer system.
4. 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 receiving and transmitting module is connected with the Ethernet receiving and transmitting 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.
5. The fault simulation system of claim 1, wherein the background application module sends an overvoltage threshold to the fiber optic switch, the fiber optic switch compares the voltage value of the sub-module with the overvoltage threshold, and 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;
and/or the background application program module sends optical fiber communication fault information to a valve control board, the valve control board closes the corresponding optical fiber according to the optical fiber communication fault information, and the valve control sends a bypass signal to the corresponding submodule to reduce the voltage of the corresponding submodule;
And/or the background application program module sends the power-on threshold and the power-off threshold to the optical fiber switching machine, and the optical fiber switching machine judges that the corresponding sub-module is in a power-on state or a power-off state according to the power-on threshold and the power-off threshold and controls the starting or closing 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, and after the valve control detects that the voltage of the submodule is abnormal, the valve control sends a bypass signal to the corresponding submodule to control the voltage reduction of the submodule;
And/or the background application program module sends the false value of the voltage of the submodule to the optical fiber adapter, the optical fiber adapter sends the false value of the voltage of the submodule to the valve control, and the valve control sends a bypass signal to the corresponding submodule after detecting the abnormal voltage of the submodule to control the voltage reduction of the submodule;
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 detects and sends bypass signals to the corresponding sub-modules, and the voltage of the sub-modules is controlled to be reduced.
6. The fault simulation system of claim 1, wherein the serial port transceiver module receives fault information from the main control board through the serial port and sends the fault information to the fault simulation module;
the high-speed serial port receiving and transmitting module receives capacitor voltage and state from the main control board through the high-speed serial port and respectively transmits the capacitor voltage and state to the encoding and decoding module, and the high-speed serial port receiving and transmitting module transmits control signals of the sub-modules to the main control board through the high-speed serial port;
The encoding and decoding module carries out serial encoding on the capacitor voltage and the state and sends the capacitor voltage and the state to the fault simulation module; the encoding 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 transmitting module;
the fault simulation module conducts the on-off processing of the receiving and transmitting signals between the encoding 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 receiving and transmitting module so as to simulate the optical fiber communication faults.
7. The fault simulation system according to claim 1, 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 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 carrying out fault judgment of overvoltage, undervoltage and high-order energy taking of the voltage of the submodule and sending a judgment result to the submodule voltage fault simulation module;
The submodule voltage fault simulation module is used for judging the type of the transmitted submodule voltage according to the fault sign, transmitting the corresponding submodule voltage to the high-speed serial port receiving and transmitting module, and transmitting the submodule voltage to the valve control board through the high-speed serial port by the high-speed serial port receiving and transmitting module;
The high-speed serial port receiving and transmitting module receives a power module control signal from the valve control board through the 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 the high-speed optical port for connection.
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