Cooperative cooperation method and system between digital valve control system and trigger monitoring unit

Abstract

The invention belongs to the technical field of direct-current power transmission, and particularly relates to a cooperation method and system between a digital valve control system and a trigger monitoring unit, and the method comprises the steps: employing a valve control system to transmit a trigger signal to the trigger monitoring unit through employing double pulses or single pulses, so as to enable the trigger monitoring unit to control the action of a corresponding thyristor according to the trigger signal; and utilizing the trigger monitoring unit to generate return information, and sending the return information to the valve control system. According to the technical scheme provided by the invention, the trigger monitoring unit can feed back more comprehensive thyristor state information, basic signals required by operation of the converter valve are ensured to be transmitted, the capability of feeding back a plurality of faults is increased, the thyristor faults can be positioned more quickly, and meanwhile, the fault detection accuracy is improved. The transmission stability in the optical fiber is ensured and does not exceed the data processing capability of the trigger monitoring unit and the valve control system, the amount of information contained in a communication link is increased on the premise of not influencing the basic functions of the converter valve, and the additional optical fiber laying cost is not increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of DC power transmission, and particularly relates to a collaborative cooperation method and system between a digital valve control system and a trigger monitoring unit. Background Art

[0002] The communication between the valve control system and the trigger monitoring unit is one of the most critical communication links in the converter valve, which directly undertakes the important responsibility of transmitting converter valve control information. This link needs to have two key signal contents: the control command from the valve control system to the trigger monitoring unit and the feedback information from the trigger monitoring unit to the valve control system. The signal protocol needs to meet the requirements of high anti-interference ability, low bit error rate, and complete information volume.

[0003] To maintain the normal operation of the converter valve, the communication link between the valve control system and the trigger monitoring unit should at least have the trigger command issued by the valve control system and the successful trigger indication returned by the trigger monitoring unit after the thyristor is successfully turned on. The trigger monitoring unit turns on the thyristor based on the command of the valve control system, and the valve control system judges whether the thyristor is in a normal working state based on the return signal of the trigger monitoring unit.

[0004] Since the voltage around the space where the trigger monitoring unit is located is extremely high, the working electromagnetic environment is harsh, and there is strong electromagnetic interference. To ensure the accuracy of the transmitted signal, this communication link usually uses optical fiber communication. Also, because the valve control system is a secondary device, the physical location is far from the primary device, and the number of thyristor stages is large and the number of trigger monitoring units is large. Increasing the number of optical fibers between the two will greatly increase the optical fiber laying cost. Therefore, only two optical fibers are set between the valve control system and each trigger monitoring unit to meet the minimum configuration required for the command issuing and status reporting directions.

[0005] Currently, generally pure level communication or digital protocol is adopted. That is, when the valve control system needs the thyristor to conduct, it sends a trigger instruction in the form of a pulse from the issuing channel, and after the thyristor is successfully turned on, the trigger monitoring unit feeds back the pulse of successful conduction from the reporting channel. Or a communication protocol is used to transmit the encoded trigger command and valve status information. However, the content of level communication is single, and the valve control system can only judge the complete failure of the trigger monitoring unit by the disappearance of the frequency signal. There is no clear corresponding signal information for relatively complex thyristor states such as energy acquisition failure, switch failure, and operation mode, which is not conducive to making early warnings about the thyristor state in a timely manner or judging the abnormal reasons of the thyristor. The digital protocol has high hardware requirements for the valve control system, and problems such as information flow overload and information not being processed in a timely manner will occur in a converter valve system with a large number of stages. Summary of the Invention

[0006] To overcome the problems existing in the above related technologies, the present invention provides a collaborative cooperation and system between a digital valve control system and a trigger monitoring unit.

[0007] According to the first aspect of the embodiments of the present invention, a method for collaborative cooperation between a digital valve control system and a trigger monitoring unit is provided, including:

[0008] Using the valve control system to send a trigger signal to the trigger monitoring unit by means of double pulses or single pulses, so that the trigger monitoring unit controls the corresponding thyristor to act according to the trigger signal;

[0009] Using the trigger monitoring unit to generate return information and sending the return information to the valve control system;

[0010] Wherein, the trigger signal includes: a trigger start signal and a trigger end signal; the return information includes: a frame start bit, data bits, and a check bit.

[0011] Preferably, the step of using the valve control system to send a trigger signal to the trigger monitoring unit by means of double pulses or single pulses includes:

[0012] Using the valve control system to send the trigger start signal to the trigger monitoring unit according to a preset period and a preset pulse width and by means of double pulses, so that the trigger monitoring unit controls the corresponding thyristor to turn on according to the trigger start signal;

[0013] Using the valve control system to send the trigger end signal to the trigger monitoring unit according to a preset period and a preset pulse width and by means of a single pulse, so that the trigger monitoring unit controls the corresponding thyristor to turn off according to the trigger end signal.

[0014] Preferably, the step of sending the return information to the valve control system includes:

[0015] Using the HDLC communication protocol to send the return information to the valve control system.

[0016] Preferably, the data bits include: a fault detection bit, an operation mode bit, a normal trigger status bit, a trigger signal abnormality detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit, and 11 spare bits.

[0017] Preferably, the number of bits of the frame start bit is 8, the number of bits of the data bits is 38, and the number of bits of the check bit is 4;

[0018] The number of bits of the fault detection bit is 2, the number of bits of the operation mode bit is 1, the number of bits of the normal trigger status bit is 1, the number of bits of the trigger signal abnormality detection bit is 1, the number of bits of the thyristor bit is 14, the number of bits of the protection bit is 2, the number of bits of the heartbeat signal bit is 2, and the number of bits of the program version number bit is 4.

[0019] Preferably, the frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

[0020] Preferably, generating the return information by using the trigger monitoring unit includes:

[0021] When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1;

[0022] When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger status bit is 0; when the trigger monitoring unit detects that the thyristor is turned on, the normal trigger status bit is 1;

[0023] When the trigger monitoring unit receives the trigger signal sent by the valve control system to the trigger monitoring unit according to the preset period and preset pulse width, the sent signal anomaly detection bit is 0; when the trigger monitoring unit receives the trigger signal that the valve control system does not send to the trigger monitoring unit according to the preset period or preset pulse width, the sent signal anomaly detection bit is 1.

[0024] Preferably, generating the return information by using the trigger monitoring unit includes:

[0025] Using the trigger monitoring unit to cyclically send the heartbeat signal bit to the valve control system according to the preset digital order, so that the valve control system can determine that the heartbeat signal is in an abnormal state when it receives no change in the heartbeat signal bit within a continuous preset time;

[0026] Using the trigger monitoring unit to detect the program version carried by itself and generating the program version bit number by using the program version carried by itself.

[0027] Preferably, generating the return information by using the trigger monitoring unit includes:

[0028] Using the trigger monitoring unit to generate the check bit by using the CRC check method, so that the valve control system verifies the check bit. If the verification is successful, the return information is valid; if the verification fails, the return information is invalid, and wait for the return information of the next frame.

[0029] Preferably, the fault detection bit includes: the power acquisition fault bit and the on / off power supply fault bit;

[0030] The thyristor bit includes: the thyristor turn-off bit, the thyristor turn-on bit and the thyristor voltage bit;

[0031] The protection bit includes: the overvoltage protection threshold reduction bit and the overvoltage protection action bit.

[0032] Preferably, the number of bits of the energy-taking fault bit is 1 bit, the number of bits of the turn-on / off power supply fault bit is 1 bit, the number of bits of the thyristor turn-off bit is 1 bit, the number of bits of the thyristor turn-on bit is 1 bit, the number of bits of the thyristor voltage bit is 12 bits, the number of bits of the overvoltage protection threshold reduction bit is 1 bit, and the number of bits of the overvoltage protection action bit is 1 bit.

[0033] Preferably, generating the return information by using the trigger monitoring unit includes:

[0034] When the energy-taking of the trigger monitoring unit is undervoltage, the energy-taking fault bit is 1; when the energy-taking of the trigger monitoring unit is not undervoltage, the energy-taking fault bit is 0;

[0035] When the switching power supply for turning on the thyristor on the trigger monitoring unit is undervoltage, the turn-on / off power supply fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit is not undervoltage, the turn-on / off power supply fault bit is 0.

[0036] Preferably, generating the return information by using the trigger monitoring unit includes:

[0037] When the trigger monitoring unit detects that the thyristor is normally turned off, the thyristor turn-off bit is 0; when the trigger monitoring unit detects a thyristor turn-off fault, the thyristor turn-off bit is 1;

[0038] When the trigger monitoring unit detects that the thyristor is normally turned on, the thyristor turn-on bit is 0; when the trigger monitoring unit detects a thyristor turn-on fault, the thyristor turn-on bit is 1;

[0039] When the trigger monitoring unit detects the voltage across the thyristor, the thyristor voltage bit is generated according to the voltage across the thyristor.

[0040] Preferably, generating the return information by using the trigger monitoring unit includes:

[0041] When the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is reduced, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is not reduced, the overvoltage protection threshold reduction bit is 0;

[0042] When the trigger monitoring unit detects that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action is started, and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

[0043] According to the second aspect of the embodiments of the present invention, a collaborative system between a digital valve control system and a trigger monitoring unit is provided, including: a valve control system and a plurality of trigger monitoring units; the valve control system is connected to each of the trigger monitoring units, and each of the trigger monitoring units is connected to its corresponding thyristor;

[0044] The valve control system is configured to issue a trigger signal to the trigger monitoring unit by using a double pulse or a single pulse, so that the trigger monitoring unit controls the action of its corresponding thyristor according to the trigger signal;

[0045] The trigger monitoring unit is configured to generate a return message and send the return message to the valve control system;

[0046] Wherein, the trigger signal includes: a trigger start signal and a trigger end signal; the return message includes: a frame start bit, data bits, and a check bit.

[0047] Preferably, the valve control system is specifically configured to:

[0048] Send the trigger start signal to the trigger monitoring unit by using a double pulse according to a preset period and a preset pulse width, so that the trigger monitoring unit controls the corresponding thyristor to turn on according to the trigger start signal;

[0049] Send the trigger end signal to the trigger monitoring unit by using a single pulse according to a preset period and a preset pulse width, so that the trigger monitoring unit controls the corresponding thyristor to turn off according to the trigger end signal.

[0050] Preferably, the trigger monitoring unit is specifically configured to:

[0051] Send the return message to the valve control system by using the HDLC communication protocol.

[0052] Preferably, the data bits include: a fault detection bit, an operation mode bit, a normal trigger status bit, a trigger signal anomaly detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit, and 11 spare bits.

[0053] Preferably, the number of bits of the frame start bit is 8, the number of bits of the data bits is 38, and the number of bits of the check bit is 4;

[0054] The number of bits of the fault detection bit is 2, the number of bits of the operation mode bit is 1, the number of bits of the normal trigger status bit is 1, the trigger signal anomaly detection bit is 1, the number of bits of the thyristor bit is 14, the number of bits of the protection bit is 2, the number of bits of the heartbeat signal bit is 2, and the number of bits of the program version number bit is 4.

[0055] Preferably, the frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

[0056] Preferably, the trigger monitoring unit is specifically configured to:

[0057] When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1;

[0058] When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger status bit is 0; when the trigger monitoring unit detects that the thyristor is turned on, the normal trigger status bit is 1;

[0059] When the trigger monitoring unit receives the trigger signal sent by the valve control system to the trigger monitoring unit according to the preset period and preset pulse width, the sent signal anomaly detection bit is 0; when the trigger monitoring unit receives the trigger signal sent by the valve control system not according to the preset period or preset pulse width to the trigger monitoring unit, the sent signal anomaly detection bit is 1.

[0060] Preferably, the trigger monitoring unit is specifically configured to:

[0061] Use the trigger monitoring unit to cyclically send the heartbeat signal bit to the valve control system according to the preset digital order, so that the valve control system determines that the heartbeat signal is in an abnormal state when it receives the unchanged heartbeat signal bit within a continuous preset time;

[0062] Use the trigger monitoring unit to detect the program version carried by itself, and generate the program version number bit using the program version carried by itself.

[0063] Preferably, the trigger monitoring unit is specifically configured to:

[0064] Adopt the CRC check method to generate the check bit, so that the valve control system verifies the check bit. If the verification is successful, the return information is valid; if the verification fails, the return information is invalid, and wait for the return information of the next frame.

[0065] Preferably, the fault detection bit includes: the power acquisition fault bit and the on-off power supply fault bit;

[0066] The thyristor bit includes: the thyristor turn-off bit, the thyristor turn-on bit, and the thyristor voltage bit;

[0067] The protection bit includes: the overvoltage protection threshold reduction bit and the overvoltage protection action bit.

[0068] Preferably, the number of bits of the energy-taking fault bit is 1 bit, the number of bits of the turn-on / off power supply fault bit is 1 bit, the number of bits of the thyristor turn-off bit is 1 bit, the number of bits of the thyristor turn-on bit is 1 bit, the number of bits of the thyristor voltage bit is 12 bits, the number of bits of the overvoltage protection threshold reduction bit is 1 bit, and the number of bits of the overvoltage protection action bit is 1 bit.

[0069] Preferably, the trigger monitoring unit is specifically configured to:

[0070] When the energy-taking of the trigger monitoring unit is undervoltage, the energy-taking fault bit is 1; when the energy-taking of the trigger monitoring unit is not undervoltage, the energy-taking fault bit is 0;

[0071] When the switching power supply for turning on the thyristor on the trigger monitoring unit is undervoltage, the turn-on / off power supply fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit is not undervoltage, the turn-on / off power supply fault bit is 0.

[0072] Preferably, the trigger monitoring unit is specifically configured to:

[0073] When the trigger monitoring unit detects that the thyristor is normally turned off, the thyristor turn-off bit is 0; when the trigger monitoring unit detects a thyristor turn-off fault, the thyristor turn-off bit is 1;

[0074] When the trigger monitoring unit detects that the thyristor is normally turned on, the thyristor turn-on bit is 0; when the trigger monitoring unit detects a thyristor turn-on fault, the thyristor turn-on bit is 1;

[0075] When the trigger monitoring unit detects the voltage across the thyristor, the thyristor voltage bit is generated according to the voltage across the thyristor.

[0076] Preferably, the trigger monitoring unit is specifically configured to:

[0077] When the trigger monitoring unit detects a reduction in the overvoltage protection threshold of the thyristor, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor has not been reduced, the overvoltage protection threshold reduction bit is 0;

[0078] When the trigger monitoring unit detects that the voltage across the thyristor exceeds a preset threshold, overvoltage protection action is started and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

[0079] According to a third aspect of an embodiment of the present invention, there is provided an electronic device, including: at least one processor and a memory; the memory and the processor are connected by a bus;

[0080] The memory is used for storing one or more programs;

[0081] When the one or more programs are executed by the at least one processor, the collaborative cooperation method between the digital valve control system and the trigger monitoring unit is implemented.

[0082] According to a fourth aspect of an embodiment of the present invention, there is provided a readable storage medium having an execution program stored thereon, and when the execution program is executed, the collaborative cooperation method between the digital valve control system and the trigger monitoring unit is implemented.

[0083] The technical solution provided by the present invention has the following beneficial effects:

[0084] For the collaborative cooperation method and system between the digital valve control system and the trigger monitoring unit provided by the present invention, by using the valve control system to send a trigger signal to the trigger monitoring unit by using a double pulse or a single pulse, so that the trigger monitoring unit controls the corresponding thyristor to act according to the trigger signal, and by using the trigger monitoring unit to generate a return message and send the return message to the valve control system, it is realized that the trigger monitoring unit can feedback more comprehensive thyristor state information. Besides ensuring the transmission of the basic signals required for the operation of the commutation valve, several kinds of fault feedback capabilities are added, and the thyristor fault can be located more quickly. At the same time, the transmission stability in the optical fiber is ensured and does not exceed the data processing capabilities of the trigger monitoring unit and the valve control system. Without affecting the basic functions of the commutation valve itself, the amount of information included in the communication link is increased, and the total number of optical fiber paths and the optical fiber requirements remain unchanged as the original design, without increasing any optical fiber laying costs. Description of the Drawings

[0085] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0086] Figure 1 is a flowchart of a collaborative cooperation method between a digital valve control system and a trigger monitoring unit provided by an embodiment of the present invention;

[0087] Figure 2 is a structural block diagram of a collaborative cooperation system between a digital valve control system and a trigger monitoring unit provided by an embodiment of the present invention;

[0088] Figure 3 It is a block diagram of an electronic device provided by an embodiment of the present invention. Detailed implementation manners

[0089] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the following embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0090] Embodiment 1

[0091] A collaborative cooperation method between a digital valve control system and a trigger monitoring unit, as Figure 1 shown, includes the following steps:

[0092] Step 11: Use the valve control system to send a trigger signal to the trigger monitoring unit by using a double pulse or a single pulse, so that the trigger monitoring unit controls the corresponding thyristor to act according to the trigger signal;

[0093] Step 12: Use the trigger monitoring unit to generate return information and send the return information to the valve control system by using the HDLC communication protocol;

[0094] Wherein, the trigger signal includes: a trigger start signal and a trigger end signal; the return information includes: a frame start bit, a data bit and a check bit.

[0095] It should be noted that the valve control system and the multi-level trigger monitoring unit each have independent sending and return links. Each level of trigger monitoring unit triggers the corresponding thyristor based on the sending signal of the valve control system, and then feeds back the state information of the thyristor to the valve control system.

[0096] The present invention combines double / single pulses and the HDLC communication protocol to reduce the hardware load of the valve control system when simultaneously processing multi-level trigger monitoring units while ensuring the complete feedback of the valve state by the trigger monitoring unit.

[0097] The sending information provided by the present invention only retains the trigger content (i.e., the trigger signal), improves the stability of signal transmission, and reduces the performance load required for the hardware parsing core to generate signals.

[0098] Further, using the valve control system to send a trigger signal to the trigger monitoring unit by using a double pulse or a single pulse includes:

[0099] Use the valve control system to send a trigger start signal to the trigger monitoring unit according to a preset period and a preset pulse width and by using a double pulse, so that the trigger monitoring unit controls the corresponding thyristor to turn on according to the trigger start signal;

[0100] The valve control system is used to send a trigger end signal to the trigger monitoring unit according to a preset period and a preset pulse width, and by using a single pulse, so that the trigger monitoring unit controls the corresponding thyristor to turn off according to the trigger end signal.

[0101] Furthermore, the data bits include: a fault detection bit, an operation mode bit, a normal trigger status bit, a trigger signal anomaly detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit, and 11 spare bits.

[0102] It should be noted that there are sufficient reserved bits (i.e., spare bits, as shown in Table 1 below, defaulting to 0) in the return information of the protocol of the present invention, leaving a design space for newly added states in the future and facilitating further expansion of the protocol content.

[0103] Furthermore, the number of bits of the frame start bit is 8, the number of bits of the data bit is 38, and the number of bits of the check bit is 4;

[0104] The number of bits of the fault detection bit is 2, the number of bits of the operation mode bit is 1, the number of bits of the normal trigger status bit is 1, the trigger signal anomaly detection bit is 1, the number of bits of the thyristor bit is 14, the number of bits of the protection bit is 2, the number of bits of the heartbeat signal bit is 2, and the number of bits of the program version number bit is 4.

[0105] Furthermore, the frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

[0106] Furthermore, the trigger monitoring unit is used to generate return information, including:

[0107] When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1;

[0108] When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger status bit is 0; when the trigger monitoring unit detects that the thyristor is turned on, the normal trigger status bit is 1;

[0109] When the trigger monitoring unit receives a trigger signal sent by the valve control system according to a preset period and a preset pulse width, the issued signal anomaly detection bit is 0; when the trigger monitoring unit receives a trigger signal sent by the valve control system not according to a preset period or a preset pulse width, the issued signal anomaly detection bit is 1.

[0110] Furthermore, the trigger monitoring unit is used to generate return information, including:

[0111] The trigger monitoring unit is used to cyclically send the heartbeat signal bit to the valve control system in a preset digital order, so that the valve control system can judge that the heartbeat signal is in an abnormal state when it receives the heartbeat signal bit without change within a continuous preset time;

[0112] The trigger monitoring unit is used to detect the program version carried by itself, and generate a program version position number by using the program version carried by itself.

[0113] It can be understood that the present invention does not limit the "preset digital order", which can be set by those skilled in the art according to engineering needs or experimental data, etc. In some embodiments, the number of bits of the heartbeat signal bit is 2, and the content of each bit is 0 or 1, then the preset digital order can be but is not limited to: 00, 01, 10, and 11; that is, the trigger monitoring unit sends the heartbeat signal bits to the valve control system in the order of 00, 01, 10, and 11 in a cycle.

[0114] Furthermore, the trigger monitoring unit is used to generate a return message, including:

[0115] The trigger monitoring unit uses the CRC check method to generate a check bit, so that the valve control system verifies the check bit. If the verification is successful, the return message is valid; if the verification fails, the return message is invalid, and waits for the return message of the next frame.

[0116] It should be noted that the methods of "generating a check bit by using the CRC check method" and "verifying the check bit" involved in the embodiments of the present invention are well known to those skilled in the art. Therefore, their specific implementation methods will not be described in detail.

[0117] In some embodiments, the check bit is generated by the trigger monitoring unit by placing the 4-bit remainder of the CRC at the end of the signal. The valve control system performs a divisibility check on the signal correctness. The check polynomial is G(x) = x 4 +x + 1, that is, binary 10011. The verification bit will be the remainder of the modulo-2 division of the original data of this frame appended with 4 zeros by the polynomial. On the valve control system side, the received signal is again subjected to modulo-2 division by the polynomial. If the remainder is 0, it means the signal is correct. Therefore, if the return signal received by the valve control system cannot be divided evenly by the specified polynomial, it is determined that the signal of this frame has been damaged, and the content of this frame signal is not adopted, waiting for the return signal of the next frame.

[0118] Furthermore, the fault detection bit includes: an enabling fault bit and a power-on / off power supply fault bit;

[0119] The thyristor bit includes: a thyristor turn-off bit, a thyristor turn-on bit, and a thyristor voltage bit;

[0120] The protection bit includes: an overvoltage protection threshold reduction bit and an overvoltage protection action bit.

[0121] Further, the number of bits for the energy-taking fault bit is 1, the number of bits for the power-on / off power supply fault bit is 1, the number of bits for the thyristor turn-off bit is 1, the number of bits for the thyristor turn-on bit is 1, the number of bits for the thyristor voltage bit is 12, the number of bits for the overvoltage protection threshold reduction bit is 1, and the number of bits for the overvoltage protection action bit is 1.

[0122] Further, the trigger monitoring unit is used to generate return information, including:

[0123] When the energy-taking of the trigger monitoring unit is undervoltage, the energy-taking fault bit is 1; when the energy-taking of the trigger monitoring unit is not undervoltage, the energy-taking fault bit is 0.

[0124] When the switching power supply for turning on the thyristor on the trigger monitoring unit is undervoltage, the power-on / off power supply fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit is not undervoltage, the power-on / off power supply fault bit is 0.

[0125] Further, the trigger monitoring unit is used to generate return information, including:

[0126] When the trigger monitoring unit detects normal turn-off of the thyristor, the thyristor turn-off bit is 0; when the trigger monitoring unit detects a thyristor turn-off fault, the thyristor turn-off bit is 1.

[0127] When the trigger monitoring unit detects normal turn-on of the thyristor, the thyristor turn-on bit is 0; when the trigger monitoring unit detects a thyristor turn-on fault, the thyristor turn-on bit is 1.

[0128] When the trigger monitoring unit detects the voltage across the thyristor, the thyristor voltage bit is generated according to the voltage across the thyristor.

[0129] Further, the trigger monitoring unit is used to generate return information, including:

[0130] When the trigger monitoring unit detects a reduction in the overvoltage protection threshold of the thyristor, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor has not been reduced, the overvoltage protection threshold reduction bit is 0.

[0131] When the trigger monitoring unit detects that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action is started and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

[0132] It should be noted that the return information provided by the present invention enriches the content volume, adds several kinds of fault feedback capabilities in addition to the original trigger state, and can locate the thyristor fault more quickly. The present invention provides a cooperative method between the digital valve control system and the trigger monitoring unit. The total number of optical fibers and the optical fiber requirements between the valve control system and the trigger monitoring unit remain unchanged from the original design, without increasing any optical fiber laying costs, and have a wide range of applications.

[0133] To further illustrate the above-mentioned cooperative method between the digital valve control system and the trigger monitoring unit, the present invention provides a specific example as follows:

[0134] The command sent from the valve control system to the trigger monitoring unit uses double single pulses. The double pulse indicates the start of the trigger, and the single pulse indicates the end of the trigger;

[0135] Each frame of the return information from the trigger monitoring unit to the valve control system has a total of 50 bits. The protocol content of the return information includes:

[0136] Frame start bit: A fixed start bit with the content of 0x7E;

[0137] Power acquisition fault bit: Indicated by the under-voltage of power acquisition of the trigger monitoring unit. When in the fault state, it means that the power supply obtained by the trigger monitoring unit from the thyristor is lower than the standard voltage value, and the voltage value can be adjusted based on the actual situation;

[0138] On-off power supply fault bit: Indicated by the under-voltage of the switching power supply used to conduct the thyristor on the trigger monitoring unit. When in the fault state, it means that the switching power supply cannot meet the voltage required for on-off, and the voltage value can be adjusted according to the actual situation;

[0139] Operating mode bit: Whether the trigger monitoring unit is in the startup state;

[0140] Normal trigger status bit: Whether the thyristor is normally triggered;

[0141] Trigger signal anomaly detection bit:

[0142] The valve control system sends a trigger signal of double single pulses indicating the start or end of the trigger to the trigger monitoring unit with a fixed pulse width and period. An abnormal pulse width or period will set this bit to the fault state, that is, this bit will become 1;

[0143] Thyristor turn-off bit: Feedback on successful turn-off of the thyristor. That is, when the trigger monitoring unit detects normal turn-off of the thyristor, the thyristor turn-off bit is 0; when the trigger monitoring unit detects a turn-off fault of the thyristor, the thyristor turn-off bit is 1;

[0144] Thyristor turn-on bit: Feedback on successful thyristor conduction. That is, when the trigger monitoring unit detects normal thyristor turn-on, the thyristor turn-on bit is 0; when the trigger monitoring unit detects a thyristor turn-on fault, the thyristor turn-on bit is 1;

[0145] Heartbeat signal bit: The number of bits is 2. The heartbeat bits cycle through 00, 01, 10, and 11 in sequence, and are reported by the trigger monitoring unit to the valve control system. The valve control system detects the abnormal state of the heartbeat signal; for the heartbeat count of this signal, it increments by 1 in each frame and cycles. If the valve control system detects that the heartbeat signal remains unchanged for 80 consecutive frames (i.e., 2 ms), it is determined that the heartbeat signal from the valve control system to the trigger monitoring unit is abnormal, and an irreparable communication fault is reported;

[0146] Overvoltage protection threshold reduction bit: Whether the overvoltage protection threshold of the thyristor is reduced; when the trigger monitoring unit detects a reduction in the overvoltage protection threshold of the thyristor, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor has not been reduced, the overvoltage protection threshold reduction bit is 0;

[0147] Overvoltage protection action bit: Whether overvoltage protection conduction is initiated; when the trigger monitoring unit detects that the voltage across the thyristor exceeds the preset threshold, overvoltage protection action is initiated, and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0;

[0148] Program version bit: The number of bits is 4, representing the program version carried by the trigger monitoring unit;

[0149] Thyristor voltage bit: The number of bits is 12, representing the voltage across the thyristor;

[0150] Check bit: The number of bits is 4. It is the verification bit used when using CRC check. That is, the 4-bit remainder of the CRC generated by the trigger monitoring unit is placed at the end of the signal, and the valve control system performs a divisibility check on the signal correctness; if the received return signal by the valve control system cannot be divided evenly by the specified polynomial, it is determined that the signal of this frame has been damaged, and the content of this frame of signal is not adopted, waiting for the next frame of return signal.

[0151] In some embodiments, the check polynomial that can be but is not limited to being adopted is G(x) = x 4 +x + 1, that is, binary 10011. The verification bit will be the remainder of the modulo-2 division of the original data of this frame appended with 4 zeros by the polynomial. On the valve control system side, the received signal is again subjected to modulo-2 division with the polynomial. If the remainder is 0, it represents that the signal is correct.

[0152] The positions of each signal within the frame are defined as shown in Table 1.

[0153] Table 1 Return information content

[0154]

[0155]

[0156] A collaborative cooperation method between a digital valve control system and a trigger monitoring unit according to the present invention takes into account the communication information volume and the requirements of the hardware information processing capacity, and proposes a combined processing method. It newly defines the communication content between the converter valve and the trigger monitoring unit, solves the problem that the valve feedback state in the current converter valve is too single and the information is incomplete. It enables the trigger monitoring unit to feedback more comprehensive thyristor state information and avoids increasing the cost brought by adding parallel optical fibers, that is, a new serial communication protocol is used to replace the original frequency signal and pulse signal. In addition to ensuring the transmission of the basic signals required for the operation of the converter valve, this protocol additionally adds other auxiliary contents that are difficult to be compatible with the original technology.

[0157] The novel communication protocol provided by the present invention has a suitable data bit width and communication rate, ensures the transmission stability in the optical fiber and does not exceed the data processing capabilities of the trigger monitoring unit and the valve control system. It improves the information volume contained in the communication link without affecting the basic functions of the converter valve itself.

[0158] Embodiment 2

[0159] The present invention also provides a collaborative cooperation system between a digital valve control system and a trigger monitoring unit, as Figure 2 shown, including: a valve control system and a plurality of trigger monitoring units; the valve control system is connected to each trigger monitoring unit, and each trigger monitoring unit is connected to its corresponding thyristor;

[0160] The valve control system is configured to send a trigger signal to the trigger monitoring unit by using a double pulse or a single pulse, so that the trigger monitoring unit controls the action of its corresponding thyristor according to the trigger signal;

[0161] The trigger monitoring unit is configured to generate a return message and send the return message to the valve control system by using the HDLC communication protocol;

[0162] Wherein, the trigger signal includes: a trigger start signal and a trigger end signal; the return message includes: a frame start bit, a data bit, and a check bit.

[0163] Furthermore, the valve control system is specifically configured to:

[0164] Send a trigger start signal to the trigger monitoring unit by using a double pulse according to a preset period and a preset pulse width, so that the trigger monitoring unit controls the corresponding thyristor to turn on according to the trigger start signal;

[0165] Send a trigger end signal to the trigger monitoring unit according to a preset period and a preset pulse width, and use a single pulse to enable the trigger monitoring unit to control the corresponding thyristor to turn off according to the trigger end signal.

[0166] Further, the data bits include: a fault detection bit, an operation mode bit, a normal trigger status bit, a trigger signal abnormality detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit, and 11 spare bits.

[0167] Further, the number of bits of the frame start bit is 8 bits, the number of bits of the data bit is 38 bits, and the number of bits of the parity bit is 4 bits;

[0168] The number of bits of the fault detection bit is 2 bits, the number of bits of the operation mode bit is 1 bit, the number of bits of the normal trigger status bit is 1 bit, the trigger signal abnormality detection bit is 1 bit, the number of bits of the thyristor bit is 14 bits, the number of bits of the protection bit is 2 bits, the number of bits of the heartbeat signal bit is 2 bits, and the number of bits of the program version number bit is 4 bits.

[0169] Further, the frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

[0170] Further, the trigger monitoring unit is specifically used for:

[0171] When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1;

[0172] When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger status bit is 0; when the trigger monitoring unit detects that the thyristor is turned on, the normal trigger status bit is 1;

[0173] When the trigger monitoring unit receives the trigger signal sent by the valve control system according to the preset period and the preset pulse width, the issued signal abnormality detection bit is 0; when the trigger monitoring unit receives the trigger signal sent by the valve control system not according to the preset period or the preset pulse width, the issued signal abnormality detection bit is 1.

[0174] Further, the trigger monitoring unit is specifically used for:

[0175] Use the trigger monitoring unit to cyclically send the heartbeat signal bit to the valve control system according to a preset digital order, so that the valve control system can judge that the heartbeat signal is in an abnormal state when it receives no change in the heartbeat signal bit within a continuous preset time;

[0176] Use the trigger monitoring unit to detect the program version carried by itself, and generate the program version number bit by using the program version carried by itself.

[0177] Further, the trigger monitoring unit is specifically used for:

[0178] The check bit is generated by using the CRC check method, so that the valve control system can verify the check bit. If the verification is successful, the reported information is valid; if the verification fails, the reported information is invalid, and the system waits for the reported information of the next frame.

[0179] Furthermore, the fault detection bits include: the power acquisition fault bit and the on / off power supply fault bit;

[0180] The thyristor bits include: the thyristor turn-off bit, the thyristor turn-on bit, and the thyristor voltage bit;

[0181] The protection bits include: the overvoltage protection threshold reduction bit and the overvoltage protection action bit.

[0182] Furthermore, the number of bits of the power acquisition fault bit is 1 bit, the number of bits of the on / off power supply fault bit is 1 bit, the number of bits of the thyristor turn-off bit is 1 bit, the number of bits of the thyristor turn-on bit is 1 bit, the number of bits of the thyristor voltage bit is 12 bits, the number of bits of the overvoltage protection threshold reduction bit is 1 bit, and the number of bits of the overvoltage protection action bit is 1 bit.

[0183] Furthermore, the trigger monitoring unit is specifically used for:

[0184] When the trigger monitoring unit has undervoltage in power acquisition, the power acquisition fault bit is 1; when the trigger monitoring unit does not have undervoltage in power acquisition, the power acquisition fault bit is 0;

[0185] When the switching power supply for turning on the thyristor on the trigger monitoring unit has undervoltage, the on / off power supply fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit does not have undervoltage, the on / off power supply fault bit is 0.

[0186] Furthermore, the trigger monitoring unit is specifically used for:

[0187] When the trigger monitoring unit detects normal turn-off of the thyristor, the thyristor turn-off bit is 0; when the trigger monitoring unit detects a turn-off fault of the thyristor, the thyristor turn-off bit is 1;

[0188] When the trigger monitoring unit detects normal turn-on of the thyristor, the thyristor turn-on bit is 0; when the trigger monitoring unit detects a turn-on fault of the thyristor, the thyristor turn-on bit is 1;

[0189] When the trigger monitoring unit detects the voltage across the thyristor, the thyristor voltage bit is generated according to the voltage across the thyristor.

[0190] Furthermore, the trigger monitoring unit is specifically used for:

[0191] When the trigger monitoring unit detects a reduction in the overvoltage protection threshold of the thyristor, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor has not been reduced, the overvoltage protection threshold reduction bit is 0;

[0192] When the trigger monitoring unit detects that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action is started and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

[0193] It can be understood that the above-provided system embodiment corresponds to the above method embodiment, and the corresponding specific content can be referred to each other, which will not be elaborated here.

[0194] It can be understood that the same or similar parts in the above embodiments can be referred to each other, and the content not detailed in some embodiments can be referred to the same or similar content in other embodiments.

[0195] Embodiment III

[0196] As Figure 3 shown, the present invention further provides an electronic device, which may be a computer device, a single-chip microcomputer device, a smart mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected through a bus; the memory can be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory can also be used to store data, and this data can be called and / or modified when the instructions are executed.

[0197] The processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions. Specifically, it is suitable for loading and executing one or more instructions in the storage medium to implement the corresponding method flow or corresponding function, so as to implement the steps of the method for collaborative cooperation between a digital valve control system and a trigger monitoring unit in the above embodiments.

[0198] Embodiment IV

[0199] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device-readable storage medium (Memory). The electronic device-readable storage medium is a memory device in the electronic device, used to store programs and data. It can be understood that the storage medium here can include both the built-in storage medium in the electronic device and, of course, the extended storage medium supported by the electronic device. The storage medium provides a storage space, and this storage space stores the operating system of the terminal. And, in this storage space, there is also stored one or more instructions suitable for being loaded and executed by the processor. These instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. By the processor loading and executing one or more instructions stored in the storage medium, the steps of the method for the coordinated cooperation between a digital valve control system and a trigger monitoring unit in the above embodiments can be realized.

[0200] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0201] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0202] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and this instruction device realizes the functions in Figure 1 one flow or multiple flows and / or blocks Figure 1The functions specified in one or more boxes.

[0203] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide for implementing the steps of the functions specified in one Figure 1 One process or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes.

[0204] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A method for coordination between a digital valve control system and a trigger monitoring unit, characterized in that: include: Using the valve control system to send a trigger signal to the trigger monitoring unit using double pulses or single pulses, so that the trigger monitoring unit controls the corresponding thyristor action according to the trigger signal; generating feedback information by triggering the monitoring unit, and sending the feedback information to the valve control system; The trigger signal includes: a trigger start signal and a trigger end signal; the report information includes: a frame start bit, a data bit and a check bit.

2. The method according to claim 1, characterized in that The method of using the valve control system to send a trigger signal to the trigger monitoring unit using a double pulse or a single pulse includes: Using the valve control system to send the trigger start signal to the trigger monitoring unit according to a preset period and preset pulse width, and using double pulses, so that the trigger monitoring unit controls the corresponding thyristor to turn on according to the trigger start signal; The valve control system is used to send the trigger end signal to the trigger monitoring unit according to a preset period and preset pulse width and using a single pulse, so that the trigger monitoring unit controls the corresponding thyristor to turn off according to the trigger end signal.

3. The method according to claim 1, characterized in that The sending of the feedback information to the valve control system includes: The report information is sent to the valve control system using the HDLC communication protocol.

4. The method according to claim 1, characterized in that: The data bits include: a fault detection bit, an operation mode bit, a normal trigger state bit, a trigger signal abnormality detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit and 11 spare bits.

5. The method according to claim 1, characterized in that The number of the frame start bit is 8 bits, the number of the data bits is 38 bits, and the number of the check bits is 4 bits; The number of bits of the fault detection bit is 2 bits, the number of bits of the operating mode bit is 1 bit, the number of bits of the normal trigger state bit is 1 bit, the number of bits of the trigger signal abnormality detection bit is 1 bit, the number of bits of the thyristor bit is 14 bits, the number of bits of the protection bit is 2 bits, the number of bits of the heartbeat signal bit is 2 bits, and the number of bits of the program version number bit is 4 bits.

6. The method according to claim 1, characterized in that The frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

7. The method according to claim 4, characterized in that The generating of reporting information by triggering the monitoring unit includes: When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1; When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger state bit is 0; when the trigger monitoring unit detects that the thyristor is turned on, the normal trigger state bit is 1; When the trigger monitoring unit receives a trigger signal sent to the trigger monitoring unit by the valve control system according to a preset period and a preset pulse width, the downlink signal abnormality detection bit is 0; when the trigger monitoring unit receives a trigger signal sent to the trigger monitoring unit by the valve control system not according to the preset period or the preset pulse width, the downlink signal abnormality detection bit is 1.

8. The method according to claim 4, characterized in that The generating of reporting information by triggering the monitoring unit includes: The trigger monitoring unit is used to cyclically send the heartbeat signal bit to the valve control system in a preset digital sequence, so that the valve control system determines that the heartbeat signal is in an abnormal state when the heartbeat signal bit does not change within a continuous preset time; The trigger monitoring unit is used to detect the program version carried by the system, and the program version number is generated by using the program version carried by the system.

9. The method according to claim 4, characterized in that The generating of reporting information by triggering the monitoring unit includes: The trigger monitoring unit is used to generate the check bit using the CRC check method, so that the valve control system verifies the check bit. If the verification is successful, the report information is valid; if the verification fails, the report information is invalid and waits for the report information of the next frame.

10. The method according to claim 4, characterized in that The fault detection bits include: an energy acquisition fault bit and a power on / off fault bit; The thyristor positions include: thyristor off position, thyristor on position and thyristor voltage position; The protection bits include: an overvoltage protection threshold reduction bit and an overvoltage protection action bit.

11. The method according to claim 10, characterized in that The number of bits of the energy acquisition fault bit is 1 bit, the number of bits of the power supply on and off fault bit is 1 bit, the number of bits of the thyristor off bit is 1 bit, the number of bits of the thyristor on bit is 1 bit, the number of bits of the thyristor voltage bit is 12 bits, the number of bits of the overvoltage protection threshold reduction bit is 1 bit, and the number of bits of the overvoltage protection action bit is 1 bit.

12. The method according to claim 10, characterized in that The generating of reporting information by triggering the monitoring unit includes: When the trigger monitoring unit is under-voltage when taking energy, the energy taking fault bit is 1; when the trigger monitoring unit is not under-voltage when taking energy, the energy taking fault bit is 0; When the switching power supply for turning on the thyristor on the trigger monitoring unit is undervoltage, the power on / off fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit is not undervoltage, the power on / off fault bit is 0.

13. The method according to claim 10, characterized in that The generating of reporting information by triggering the monitoring unit includes: When the trigger monitoring unit detects that the thyristor is turned off normally, the thyristor turn-off bit is 0; when the trigger monitoring unit detects that the thyristor has a turn-off failure, the thyristor turn-off bit is 1; When the trigger monitoring unit detects that the thyristor is turned on normally, the thyristor turn-on bit is 0; when the trigger monitoring unit detects that the thyristor turns on failure, the thyristor turn-on bit is 1; When the trigger monitoring unit detects the voltage across the two ends of the thyristor, the thyristor voltage level is generated according to the voltage across the two ends of the thyristor.

14. The method according to claim 10, characterized in that The generating of reporting information by triggering the monitoring unit includes: When the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is reduced, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is not reduced, the overvoltage protection threshold reduction bit is 0; When the trigger monitoring unit detects that the voltage across the thyristor exceeds a preset threshold, the overvoltage protection action is activated, and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

15. A coordinated system between a digital valve control system and a trigger monitoring unit, characterized in that: include: A valve control system and a plurality of trigger monitoring units; the valve control system is connected to each of the trigger monitoring units, and each of the trigger monitoring units is connected to its corresponding thyristor; The valve control system is used to send a trigger signal to the trigger monitoring unit using a double pulse or a single pulse, so that the trigger monitoring unit controls the corresponding thyristor action according to the trigger signal; The trigger monitoring unit is used to generate feedback information and send the feedback information to the valve control system; The trigger signal includes: a trigger start signal and a trigger end signal; the report information includes: a frame start bit, a data bit and a check bit.

16. The system according to claim 1, characterized in that The valve control system is specifically used for: According to a preset period and a preset pulse width, the trigger start signal is sent to the trigger monitoring unit by using a double pulse, so that the trigger monitoring unit controls the corresponding thyristor to be turned on according to the trigger start signal; The trigger end signal is sent to the trigger monitoring unit in a single pulse according to a preset cycle and a preset pulse width, so that the trigger monitoring unit controls the corresponding thyristor to turn off according to the trigger end signal.

17. The system according to claim 15, characterized in that The trigger monitoring unit is specifically used for: The report information is sent to the valve control system using the HDLC communication protocol.

18. The system according to claim 15, characterized in that The data bits include: a fault detection bit, an operation mode bit, a normal trigger state bit, a trigger signal abnormality detection bit, a thyristor bit, a protection bit, a heartbeat signal bit, a program version number bit and 11 spare bits.

19. The system according to claim 18, characterized in that The number of the frame start bit is 8 bits, the number of the data bits is 38 bits, and the number of the check bits is 4 bits; The number of bits of the fault detection bit is 2 bits, the number of bits of the operating mode bit is 1 bit, the number of bits of the normal trigger state bit is 1 bit, the number of bits of the trigger signal abnormality detection bit is 1 bit, the number of bits of the thyristor bit is 14 bits, the number of bits of the protection bit is 2 bits, the number of bits of the heartbeat signal bit is 2 bits, and the number of bits of the program version number bit is 4 bits.

20. The system according to claim 18, characterized in that The frame start bit is a fixed start bit, and the content of the frame start is 0x7E.

21. The system according to claim 18, characterized in that The trigger monitoring unit is specifically used for: When the trigger monitoring unit is in the shutdown mode, the operation mode bit is 0; when the trigger monitoring unit is in the operation mode, the operation mode bit is 1; When the trigger monitoring unit detects that the thyristor is turned off, the normal trigger state bit is 0; When the trigger monitoring unit detects that the thyristor is turned on, the normal trigger state bit is 1; When the trigger monitoring unit receives a trigger signal sent to the trigger monitoring unit by the valve control system according to a preset period and a preset pulse width, the downlink signal abnormality detection bit is 0; when the trigger monitoring unit receives a trigger signal sent to the trigger monitoring unit by the valve control system not according to the preset period or the preset pulse width, the downlink signal abnormality detection bit is 1.

22. The system according to claim 18, characterized in that The trigger monitoring unit is specifically used for: The trigger monitoring unit is used to cyclically send the heartbeat signal bit to the valve control system in a preset digital sequence, so that the valve control system determines that the heartbeat signal is in an abnormal state when the heartbeat signal bit does not change within a continuous preset time; The trigger monitoring unit is used to detect the program version carried by the system, and the program version number is generated by using the program version carried by the system.

23. The system according to claim 18, characterized in that The trigger monitoring unit is specifically used for: The check bit is generated by using a CRC check method so that the valve control system verifies the check bit. If the verification succeeds, the report information is valid; if the verification fails, the report information is invalid and waits for the report information of the next frame.

24. The system according to claim 18, characterized in that The fault detection bits include: an energy acquisition fault bit and a power on / off fault bit; The thyristor positions include: thyristor off position, thyristor on position and thyristor voltage position; The protection bits include: an overvoltage protection threshold reduction bit and an overvoltage protection action bit.

25. The system according to claim 24, characterized in that The number of bits of the energy acquisition fault bit is 1 bit, the number of bits of the power supply on and off fault bit is 1 bit, the number of bits of the thyristor off bit is 1 bit, the number of bits of the thyristor on bit is 1 bit, the number of bits of the thyristor voltage bit is 12 bits, the number of bits of the overvoltage protection threshold reduction bit is 1 bit, and the number of bits of the overvoltage protection action bit is 1 bit.

26. The system according to claim 24, characterized in that The trigger monitoring unit is specifically used for: When the trigger monitoring unit is under-voltage when taking energy, the energy taking fault bit is 1; when the trigger monitoring unit is not under-voltage when taking energy, the energy taking fault bit is 0; When the switching power supply for turning on the thyristor on the trigger monitoring unit is undervoltage, the power on / off fault bit is 1; when the switching power supply for turning on the thyristor on the trigger monitoring unit is not undervoltage, the power on / off fault bit is 0.

27. The system according to claim 24, characterized in that The trigger monitoring unit is specifically used for: When the trigger monitoring unit detects that the thyristor is turned off normally, the thyristor turn-off bit is 0; when the trigger monitoring unit detects that the thyristor has a turn-off failure, the thyristor turn-off bit is 1; When the trigger monitoring unit detects that the thyristor is turned on normally, the thyristor turn-on bit is 0; when the trigger monitoring unit detects that the thyristor turns on failure, the thyristor turn-on bit is 1; When the trigger monitoring unit detects the voltage across the two ends of the thyristor, the thyristor voltage level is generated according to the voltage across the two ends of the thyristor.

28. The system according to claim 24, characterized in that The trigger monitoring unit is specifically used for: When the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is reduced, the overvoltage protection threshold reduction bit is 1; when the trigger monitoring unit detects that the overvoltage protection threshold of the thyristor is not reduced, the overvoltage protection threshold reduction bit is 0; When the trigger monitoring unit detects that the voltage across the thyristor exceeds a preset threshold, the overvoltage protection action is activated, and the overvoltage protection action bit is 1; when the trigger monitoring unit does not detect that the voltage across the thyristor exceeds the preset threshold, the overvoltage protection action bit is 0.

29. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, the method for coordination between the digital valve control system and the trigger monitoring unit as described in any one of claims 1 to 14 is implemented.

30. A readable storage medium, characterized in that: An execution program is stored thereon, and when the execution program is executed, the coordination method between the digital valve control system and the trigger monitoring unit as described in any one of claims 1 to 14 is implemented.

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