Unit control method, device and equipment suitable for third-generation pressurized water reactor

Abstract

The invention provides a unit control method, device and equipment suitable for a third-generation pressurized water reactor, and the method comprises the steps: monitoring the feed water temperature of a secondary circuit feed water system in real time if fault isolation of a single-row AHP system is detected; if the difference value of the water supply temperature in the preset unit time is larger than a preset water supply deviation value, the real-time operation power of the unit is obtained; according to a preset operation control strategy, whether the real-time operation power meets a preset unit power adjustment condition or not is judged; and if yes, adjusting the operation power of the unit according to a unit power adjustment value in the operation control strategy. According to the embodiment of the invention, the operation power of the unit can be adjusted according to the unit power adjustment value in the operation control strategy, the availability rate of unit operation after the isolation of the single-row AHP system can be effectively improved, and the safety and reliability of unit operation are ensured.

Description

Technical Field

[0001] The present invention relates to the field of pressurized water reactors, and in particular to a unit control method, device and equipment suitable for third-generation pressurized water reactors. Background Art

[0002] The third generation nuclear power plants are generally equipped with two parallel AHP systems (high pressure feedwater heater systems). When a single AHP system is isolated due to a fault, the main feedwater temperature will decrease, and the decrease in the main feedwater temperature will cause the core power to increase. This operating condition is a Class II design basis accident. It has been analyzed in the relevant safety analysis report that the core will stabilize at a higher power level, without triggering the shutdown and related safety equipment actions, and deviation from bubbling and boiling (DNB) will not occur. In this accident, the operator can try to restart the faulty AHP system to return to normal power operation conditions. If the restart of AHP fails, the operator should transition the reactor to a hot shutdown state, shut down the unit, and stop the unit, making it unable to continue to generate electricity, affecting the unit's availability.

[0003] After the single-column AHP system fails to be isolated and restarted, if the reactor is transitioned to a hot shutdown state and the unit is shut down, there will be a problem of low unit availability. In order to improve the unit availability and improve economic performance, the existing technology usually adopts the following solutions:

[0004] 1. After the single-row AHP system isolation and restart fails, the unit is withdrawn to hot shutdown, the secondary water supply and steam systems are isolated, and the AHP maintenance of the faulty row is carried out until the AHP maintenance is completed and then restarted; however, in this solution, the unit still needs to be shut down, which loses the economic efficiency of power generation; at the same time, after the AHP maintenance is completed, the unit needs to be restarted from hot shutdown, which increases the amount of radioactive wastewater and has an adverse impact on the environment;

[0005] 2. After the single-column AHP system fails to be isolated and restarted, the unit power is reduced to the rated power (such as 100% FP) and maintained for a long time. Under this scheme, when the unit maintains long-term operation, if a design basis accident occurs, the reactor will be affected by a double fault, which is likely to have an adverse impact on the normal operation of the unit.

[0006] Therefore, after the single-train AHP system fails to be isolated and restarted, the existing unit control method has the problems of low unit availability and low safety. Summary of the invention

[0007] The embodiments of the present invention provide a unit control method, device and equipment applicable to a third-generation pressurized water reactor, aiming to solve the problems of low unit availability and low safety in the existing unit control method after the isolation and restart of a single-row AHP system fails.

[0008] In a first aspect, an embodiment of the present invention provides a unit control method applicable to a third-generation pressurized water reactor, the method comprising:

[0009] If a single-row AHP system fault is detected and isolated, the feedwater temperature of the secondary circuit water supply system is monitored in real time;

[0010] If the difference in the feed water temperature within the preset unit time is greater than the preset feed water deviation value, the real-time operating power of the unit is obtained;

[0011] Determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy;

[0012] If the conditions are met, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy.

[0013] In a second aspect, an embodiment of the present invention further provides a unit control device applicable to a third-generation pressurized water reactor, the device comprising:

[0014] A monitoring unit is used to monitor the feed water temperature of the secondary circuit water supply system in real time if a fault isolation of a single-train AHP system is detected;

[0015] An acquisition unit, used for acquiring the real-time operating power of the unit if the difference of the feed water temperature within a preset unit time is greater than a preset feed water deviation value;

[0016] A judgment unit, used to judge whether the real-time operating power meets a preset unit power adjustment condition according to a preset operation control strategy;

[0017] An adjustment unit is used to adjust the operating power of the unit according to the unit power adjustment value in the operation control strategy if the conditions are met.

[0018] In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the method described in the first aspect is implemented.

[0019] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the storage medium stores a computer program, wherein the computer program includes program instructions, and wherein the program instructions, when executed by a processor, can implement the method described in the first aspect above.

[0020] The present invention provides a unit control method, device and equipment suitable for a third-generation pressurized water reactor, the method comprising: if a single-row AHP system is detected to be fault-isolated, the feedwater temperature of the secondary-circuit feedwater system is monitored in real time; if the difference in the feedwater temperature within a preset unit time is greater than a preset feedwater deviation value, the real-time operating power of the unit is obtained; according to a preset operation control strategy, it is determined whether the real-time operating power meets the preset unit power adjustment condition; if it meets the condition, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy. The embodiment of the present invention can adjust the operating power of the unit according to the unit power adjustment value in the operation control strategy, which can effectively improve the availability of the unit operation after the single-row AHP system is isolated, and ensure the safety and reliability of the unit operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0022] Figure 1 A schematic flow chart of a unit control method provided by an embodiment of the present invention;

[0023] Figure 2 A schematic block diagram of a unit control device provided in an embodiment of the present invention;

[0024] Figure 3 A schematic block diagram of an electronic device provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of an application scenario of the unit control method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0029] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations. The embodiment of the present invention provides a unit control method, device and equipment applicable to a third-generation pressurized water reactor. Please refer to Figure 4 , Figure 4 Schematic diagram of application scenario of the unit control method provided in an embodiment of the present invention. The unit control method is applied to a control module of a unit 10, the unit 10 includes a secondary water supply system 11, two AHP systems 12 and an evaporator 13, the control modules are all connected to the secondary water supply system 11, the two AHP systems 12 and the evaporator 13 in communication; the first end of the secondary water supply system 11 is simultaneously connected to the first end of each of the AHP systems 12, and the second end of each of the AHP systems 12 is connected to the evaporator 13.

[0030] Figure 1 Schematic diagram of the flow chart of the unit control method provided by the embodiment of the present invention. Figure 1 As shown, the method includes the following steps S110-S140.

[0031] S110: If a single-row AHP system fault is detected and isolated, the water supply temperature of the secondary circuit water supply system is monitored in real time.

[0032] In this embodiment, the unit includes two columns of the AHP system arranged in parallel. If a single column of the AHP system is detected to have a fault and is isolated, the water supply temperature of the secondary water supply system is monitored in real time. Specifically, the secondary water supply system is used to transport high-pressure feed water heated by the AHP system to the evaporator. The water supply temperature of the secondary water supply system can be monitored by a temperature detection device, and the temperature detection device is arranged between the AHP system and the secondary water supply system.

[0033] S120. If the difference in the water supply temperature within the preset unit time is greater than a preset water supply deviation value, the real-time operating power of the unit is obtained.

[0034] In this embodiment, if the difference in the feed water temperature within the preset unit time is greater than the preset feed water deviation value, the real-time operating power of the unit is obtained; wherein the preset feed water deviation value can be set to 10°C; specifically, after a single-row AHP system is fault-isolated, if it is detected that the feed water temperature has dropped by 10°C within the preset unit time, the real-time operating power of the unit is obtained.

[0035] S130. Determine whether the real-time operating power satisfies a preset unit power adjustment condition according to a preset operation control strategy.

[0036] In this embodiment, whether the real-time operating power meets the preset unit power adjustment condition is determined according to the unit power adjustment value in the operation control strategy; if satisfied, the operating power of the unit is adjusted according to the unit power adjustment value; if not satisfied, the current operating state of the unit is maintained.

[0037] In one embodiment, step S130 includes: determining whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy; if the real-time operating power is greater than the unit power adjustment value, determining that the unit power adjustment condition is met; if the real-time operating power is not greater than the unit power adjustment value, determining that the unit power adjustment condition is not met.

[0038] In this embodiment, it is determined whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy; wherein, the unit power adjustment value can be obtained by continuous adjustment and optimization through experiments or simulations, and the unit power adjustment value is 92% FP; if the real-time operating power is greater than the unit power adjustment value, it is determined that the unit power adjustment condition is met; if the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met.

[0039] In one embodiment, after step S130, the method further includes: if the condition is not satisfied, maintaining the current operating state of the unit.

[0040] In this embodiment, if the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met; if the real-time operating power does not meet the unit power adjustment condition, the current operating state of the unit is maintained.

[0041] S140: If the conditions are met, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy.

[0042] In this embodiment, if the condition is satisfied, the operating power of the unit is adjusted to 92% FP according to the unit power adjustment value in the operation control strategy to ensure safe operation of the unit.

[0043] Furthermore, after adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy, it also includes: treating the isolation condition of the single-column AHP system as a normal operating condition, conducting a sensitivity analysis on this condition, and obtaining a sensitivity analysis result, wherein the sensitivity analysis result includes multiple sets of data sets; if each set of data sets is within the corresponding safety margin, it is determined that the scheme of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy is feasible; if the scheme of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy is feasible, the current operating state of the unit is maintained; if any data set is not within the corresponding safety margin, it is determined that the scheme of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy is not feasible; if the scheme of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy is not feasible, the unit is shut down.

[0044] In one embodiment, after step S140, the method further includes: restarting the faulty AHP system to obtain a restart result; if the restart result is a successful restart, adjusting the operating power of the unit according to the unit power setting value in the operation control strategy.

[0045] In this embodiment, when the operating power of the unit is lower than the unit power adjustment value, the faulty AHP system is restarted to obtain a restart result; if the restart result is a successful restart, the operating power of the unit is adjusted according to the unit power setting value in the operation control strategy; wherein, the unit power setting value is the normal operating power of the unit, and the unit power setting value can be set according to actual applications.

[0046] In one embodiment, after the restarting of the faulty AHP system and obtaining the restart result, the method further includes: if the restart result is a restart failure, determining the relevant safety equipment according to the relevant safety equipment information in the operation control strategy; monitoring the operation status of each of the relevant safety equipment in real time to obtain corresponding real-time status information; evaluating each of the real-time status information according to the DBC accident to obtain the corresponding accident consequence; judging whether each of the accident consequences meets the corresponding safety criteria; and if any of the accident consequences does not meet the corresponding safety criteria, shutting down the unit.

[0047] In this embodiment, if the restart result is a restart failure, the relevant safety equipment is determined according to the relevant safety equipment information in the operation control strategy; the operation status of each of the relevant safety equipment is monitored in real time to obtain the corresponding real-time status information; each of the real-time status information is evaluated according to the DBC accident (design basis accident) to obtain the corresponding accident consequence; specifically, the DBC accident and each of the real-time status information can be input into a preset risk assessment model to obtain the accident consequence corresponding to each of the real-time status information; it is judged whether each of the accident consequences meets the corresponding safety criteria; if any of the accident consequences does not meet the corresponding safety criteria, the unit is shut down. The embodiment of the present invention can ensure that the relevant safety equipment can meet the corresponding safety criteria in any case by monitoring the operation status of each of the relevant safety equipment in real time, thereby ensuring the safety and reliability of the unit operation.

[0048] In one embodiment, after determining whether each of the accident consequences satisfies the corresponding safety criteria, the step further includes: if each of the accident consequences satisfies the corresponding safety criteria, returning to execute the step of real-time monitoring of the operating status of each of the relevant safety devices to obtain corresponding real-time status information.

[0049] In this embodiment, if each of the accident consequences meets the corresponding safety criteria, the step of returning to perform real-time monitoring of the operating status of each of the relevant safety devices to obtain corresponding real-time status information ensures that the relevant safety devices can meet the corresponding safety criteria under any circumstances, thereby ensuring the safety and reliability of the unit operation.

[0050] In one embodiment, after the faulty AHP system is restarted and the restart result is obtained, the method further includes: if the restart result is a restart failure, determining the main equipment according to the main equipment information in the operation control strategy; regularly monitoring the operation information of each of the main equipment to obtain the corresponding main equipment operation information; judging whether each of the main equipment operation information is within the corresponding safety margin; if any of the main equipment operation information is not within the corresponding safety margin, shutting down the unit.

[0051] In this embodiment, if the restart result is a restart failure, the main equipment is determined according to the main equipment information in the operation control strategy; the main equipment may be an evaporator, a water supply nozzle, etc.; the operation information of each of the main equipment is monitored regularly to obtain the corresponding main equipment operation information; it is judged whether each of the main equipment operation information is within the corresponding safety margin; if any of the main equipment operation information is not within the corresponding safety margin, the unit is shut down; if each of the main equipment operation information is within the corresponding safety margin, the step of returning to execute the step of regularly monitoring the operation information of each of the main equipment to obtain the corresponding main equipment operation information.

[0052] In summary, the embodiment of the present invention can adjust the operating power of the unit according to the unit power adjustment value in the operation control strategy, which can effectively improve the availability of the unit operation after the single-row AHP system is isolated and ensure the safety and reliability of the unit operation.

[0053] Figure 2 Schematic block diagram of a unit control device provided in an embodiment of the present invention. Figure 2 As shown, corresponding to the above unit control method applicable to the third generation pressurized water reactor, the present invention also provides a unit control device applicable to the third generation pressurized water reactor, the device is configured in the control module of the unit, the unit includes a secondary water supply system, two AHP systems and an evaporator, the control module is connected to the secondary water supply system, the two AHP systems and the evaporator in communication; the first end of the secondary water supply system is connected to the first end of each AHP system at the same time, and the second end of each AHP system is connected to the evaporator. For details, please refer to Figure 2 , the unit control device 700 applicable to the third generation pressurized water reactor includes:

[0054] The monitoring unit 701 is used to monitor the water supply temperature of the secondary circuit water supply system in real time if a single-column AHP system fault isolation is detected;

[0055] An acquisition unit 702 is used to acquire the real-time operating power of the unit if the difference of the feed water temperature within a preset unit time is greater than a preset feed water deviation value;

[0056] The judging unit 703 is used to judge whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy;

[0057] The adjustment unit 704 is used to adjust the operating power of the unit according to the unit power adjustment value in the operation control strategy if the conditions are met.

[0058] In some embodiments, when the judging unit 703 performs the step of judging whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, it is specifically used to:

[0059] Determining whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy;

[0060] If the real-time operating power is greater than the unit power adjustment value, it is determined that the unit power adjustment condition is met;

[0061] If the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met.

[0062] In some embodiments, after executing the step of determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, the judgment unit 703 is further used to:

[0063] If not satisfied, the current operating state of the unit is maintained.

[0064] In some embodiments, after executing the step of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy, the adjustment unit 704 is further configured to:

[0065] Restart the faulty AHP system and obtain the restart result;

[0066] If the restart result is a successful restart, the operating power of the unit is adjusted according to the unit power setting value in the operation control strategy.

[0067] In some embodiments, after executing the step of restarting the faulty AHP system and obtaining a restart result, the adjusting unit 704 is further configured to:

[0068] If the restart result is a restart failure, determining the relevant safety device according to the relevant safety device information in the operation control strategy;

[0069] Monitor the operating status of each of the relevant safety devices in real time to obtain corresponding real-time status information;

[0070] Evaluate each of the real-time status information according to the DBC accident to obtain the corresponding accident consequence;

[0071] Determine whether each of the accident consequences meets the corresponding safety criteria;

[0072] If any of the accident consequences does not meet the corresponding safety criteria, the unit will be shut down.

[0073] In some embodiments, after executing the step of determining whether each of the accident consequences satisfies the corresponding safety criteria, the adjustment unit 704 is further configured to:

[0074] If each of the accident consequences satisfies the corresponding safety criteria, the process returns to the step of performing real-time monitoring on the operating status of each of the relevant safety devices to obtain corresponding real-time status information.

[0075] In some embodiments, after executing the step of restarting the faulty AHP system and obtaining a restart result, the adjusting unit 704 is further configured to:

[0076] If the restart result is a restart failure, determining the main device according to the main device information in the operation control strategy;

[0077] Regularly monitor the operation information of each of the main equipment to obtain the corresponding main equipment operation information;

[0078] Determine whether the operating information of each of the main equipment is within the corresponding safety margin;

[0079] If the operating information of any of the main equipment is not within the corresponding safety margin, the unit will be shut down.

[0080] It should be noted that technicians in the relevant field can clearly understand that the specific implementation process of the above-mentioned unit control device and each unit applicable to the third-generation pressurized water reactor can refer to the corresponding description in the aforementioned method embodiment, and for the convenience and brevity of description, it will not be repeated here.

[0081] The above-mentioned unit control device applicable to the third generation pressurized water reactor can be implemented in the form of a computer program. The computer program can be used in Figure 3 The electronic device shown is running.

[0082] See also Figure 3 , Figure 3 It is a schematic block diagram of an electronic device provided by an embodiment of the present invention. The electronic device 800 is a control module of a unit, the unit includes a secondary water supply system, two AHP systems and an evaporator, the control modules are all connected to the secondary water supply system, the two AHP systems and the evaporator in communication; the first end of the secondary water supply system is simultaneously connected to the first end of each of the AHP systems, and the second end of each of the AHP systems is connected to the evaporator.

[0083] See also Figure 3The electronic device 800 includes a processor 802 , a memory and a network interface 805 connected via a system bus 801 , wherein the memory may include a non-volatile storage medium 803 and an internal memory 804 .

[0084] The non-volatile storage medium 803 can store an operating system 8031 ​​and a computer program 8032. The computer program 8032 includes program instructions, and when the program instructions are executed, the processor 802 can execute a unit control method applicable to a third-generation pressurized water reactor.

[0085] The processor 802 is used to provide computing and control capabilities to support the operation of the entire electronic device 800 .

[0086] The internal memory 804 provides an environment for the operation of the computer program 8032 in the non-volatile storage medium 803. When the computer program 8032 is executed by the processor 802, the processor 802 can execute a unit control method suitable for a third-generation pressurized water reactor.

[0087] The network interface 805 is used to communicate with other devices over the network. Figure 3 The structure shown in the figure is merely a block diagram of a partial structure related to the solution of the present invention, and does not constitute a limitation on the electronic device 800 to which the solution of the present invention is applied. The specific electronic device 800 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0088] The processor 802 is used to run the computer program 8032 stored in the memory to implement the following steps:

[0089] If a single-row AHP system fault is detected and isolated, the feedwater temperature of the secondary circuit water supply system is monitored in real time;

[0090] If the difference in the feed water temperature within the preset unit time is greater than the preset feed water deviation value, the real-time operating power of the unit is obtained;

[0091] Determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy;

[0092] If the conditions are met, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy.

[0093] In some embodiments, when the processor 802 implements the step of determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, the processor 802 specifically implements the following steps:

[0094] Determining whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy;

[0095] If the real-time operating power is greater than the unit power adjustment value, it is determined that the unit power adjustment condition is met;

[0096] If the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met.

[0097] In some embodiments, after implementing the step of determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, the processor 802 further implements the following steps:

[0098] If not satisfied, the current operating state of the unit is maintained.

[0099] In some embodiments, after implementing the step of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy, the processor 802 further implements the following steps:

[0100] Restart the faulty AHP system and obtain the restart result;

[0101] If the restart result is a successful restart, the operating power of the unit is adjusted according to the unit power setting value in the operation control strategy.

[0102] In some embodiments, after implementing the step of restarting the faulty AHP system and obtaining a restart result, the processor 802 further implements the following steps:

[0103] If the restart result is a restart failure, determining the relevant safety device according to the relevant safety device information in the operation control strategy;

[0104] Monitor the operating status of each of the relevant safety devices in real time to obtain corresponding real-time status information;

[0105] Evaluate each of the real-time status information according to the DBC accident to obtain the corresponding accident consequence;

[0106] Determine whether each of the accident consequences meets the corresponding safety criteria;

[0107] If any of the accident consequences does not meet the corresponding safety criteria, the unit will be shut down.

[0108] In some embodiments, after implementing the step of determining whether each of the accident consequences satisfies the corresponding safety criteria, the processor 802 further implements the following steps:

[0109] If each of the accident consequences satisfies the corresponding safety criteria, the process returns to the step of performing real-time monitoring on the operating status of each of the relevant safety devices to obtain corresponding real-time status information.

[0110] In some embodiments, after implementing the step of restarting the faulty AHP system and obtaining a restart result, the processor 802 further implements the following steps:

[0111] If the restart result is a restart failure, determining the main device according to the main device information in the operation control strategy;

[0112] Regularly monitor the operation information of each of the main equipment to obtain the corresponding main equipment operation information;

[0113] Determine whether the operating information of each of the main equipment is within the corresponding safety margin;

[0114] If the operating information of any of the main equipment is not within the corresponding safety margin, the unit will be shut down.

[0115] It should be understood that in the embodiment of the present invention, the processor 802 may be a central processing unit (CPU), and the processor 802 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0116] It can be understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program includes program instructions, and the computer program can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiment of the above method.

[0117] Therefore, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When the program instructions are executed by a processor, the processor executes the following steps:

[0118] If a single-row AHP system fault is detected and isolated, the feedwater temperature of the secondary circuit water supply system is monitored in real time;

[0119] If the difference in the feed water temperature within the preset unit time is greater than the preset feed water deviation value, the real-time operating power of the unit is obtained;

[0120] Determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy;

[0121] If the conditions are met, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy.

[0122] In one embodiment, when the processor executes the program instructions to implement the step of determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, the processor specifically implements the following steps:

[0123] Determining whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy;

[0124] If the real-time operating power is greater than the unit power adjustment value, it is determined that the unit power adjustment condition is met;

[0125] If the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met.

[0126] In one embodiment, after the processor executes the program instructions to implement the step of determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, it further implements the following steps:

[0127] If not satisfied, the current operating state of the unit is maintained.

[0128] In one embodiment, after the processor executes the program instructions to implement the step of adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy, it further implements the following steps:

[0129] Restart the faulty AHP system and obtain the restart result;

[0130] If the restart result is a successful restart, the operating power of the unit is adjusted according to the unit power setting value in the operation control strategy.

[0131] In one embodiment, after the processor executes the program instructions to restart the faulty AHP system and obtains a restart result, it further implements the following steps:

[0132] If the restart result is a restart failure, determining the relevant safety device according to the relevant safety device information in the operation control strategy;

[0133] Monitor the operating status of each of the relevant safety devices in real time to obtain corresponding real-time status information;

[0134] Evaluate each of the real-time status information according to the DBC accident to obtain the corresponding accident consequence;

[0135] Determine whether each of the accident consequences meets the corresponding safety criteria;

[0136] If any of the accident consequences does not meet the corresponding safety criteria, the unit will be shut down.

[0137] In one embodiment, after executing the program instructions to implement the step of determining whether each of the accident consequences satisfies the corresponding safety criteria, the processor further implements the following steps:

[0138] If each of the accident consequences satisfies the corresponding safety criteria, the process returns to the step of performing real-time monitoring on the operating status of each of the relevant safety devices to obtain corresponding real-time status information.

[0139] In one embodiment, after the processor executes the program instructions to restart the faulty AHP system and obtains a restart result, it further implements the following steps:

[0140] If the restart result is a restart failure, determining the main device according to the main device information in the operation control strategy;

[0141] Regularly monitor the operation information of each of the main equipment to obtain the corresponding main equipment operation information;

[0142] Determine whether the operating information of each of the main equipment is within the corresponding safety margin;

[0143] If the operating information of any of the main equipment is not within the corresponding safety margin, the unit will be shut down.

[0144] The storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, etc., which are computer-readable storage media that can store program codes.

[0145] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0146] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0147] The steps in the method of the embodiment of the present invention can be adjusted in order, combined and deleted according to actual needs. The units in the device of the embodiment of the present invention can be combined, divided and deleted according to actual needs. In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0148] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling an electronic device (which can be a personal computer, terminal, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention.

[0149] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A unit control method applicable to a third generation pressurized water reactor, characterized in that: The method comprises: If a single-row AHP system fault is detected and isolated, the feedwater temperature of the secondary circuit water supply system is monitored in real time; If the difference in the feed water temperature within the preset unit time is greater than the preset feed water deviation value, the real-time operating power of the unit is obtained; Determining whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy; If the conditions are met, the operating power of the unit is adjusted according to the unit power adjustment value in the operation control strategy.

2. The unit control method applicable to the third generation pressurized water reactor according to claim 1, characterized in that: The determining, according to a preset operation control strategy, whether the real-time operating power meets a preset unit power adjustment condition includes: Determining whether the real-time operating power is greater than the unit power adjustment value in the operation control strategy; If the real-time operating power is greater than the unit power adjustment value, it is determined that the unit power adjustment condition is met; If the real-time operating power is not greater than the unit power adjustment value, it is determined that the unit power adjustment condition is not met.

3. The unit control method applicable to the third generation pressurized water reactor according to claim 1, characterized in that: After judging whether the real-time operating power meets the preset unit power adjustment condition according to the preset operation control strategy, the method further includes: If not satisfied, the current operating state of the unit is maintained.

4. The unit control method applicable to the third generation pressurized water reactor according to claim 1, characterized in that: After adjusting the operating power of the unit according to the unit power adjustment value in the operation control strategy, the method further includes: Restart the faulty AHP system and obtain the restart result; If the restart result is a successful restart, the operating power of the unit is adjusted according to the unit power setting value in the operation control strategy.

5. The unit control method applicable to the third generation pressurized water reactor according to claim 4, characterized in that: After the faulty AHP system is restarted and a restart result is obtained, the method further includes: If the restart result is a restart failure, determining the relevant safety device according to the relevant safety device information in the operation control strategy; Monitor the operating status of each of the relevant safety devices in real time to obtain corresponding real-time status information; Evaluate each of the real-time status information according to the DBC accident to obtain the corresponding accident consequence; Determine whether each of the accident consequences meets the corresponding safety criteria; If any of the accident consequences does not meet the corresponding safety criteria, the unit will be shut down.

6. The unit control method applicable to the third generation pressurized water reactor according to claim 5, characterized in that: After determining whether each of the accident consequences satisfies the corresponding safety criteria, the method further includes: If each of the accident consequences satisfies the corresponding safety criteria, the process returns to the step of performing real-time monitoring on the operating status of each of the relevant safety devices to obtain corresponding real-time status information.

7. The unit control method applicable to the third generation pressurized water reactor according to claim 4, characterized in that: After the faulty AHP system is restarted and a restart result is obtained, the method further includes: If the restart result is a restart failure, determining the main device according to the main device information in the operation control strategy; Regularly monitor the operation information of each of the main equipment to obtain the corresponding main equipment operation information; Determine whether the operating information of each of the main equipment is within the corresponding safety margin; If the operating information of any of the main equipment is not within the corresponding safety margin, the unit will be shut down.

8. A unit control device suitable for a third generation pressurized water reactor, characterized in that: The device comprises: A monitoring unit is used to monitor the feed water temperature of the secondary circuit water supply system in real time if a fault isolation of a single-train AHP system is detected; An acquisition unit, used for acquiring the real-time operating power of the unit if the difference of the feed water temperature within a preset unit time is greater than a preset feed water deviation value; A judgment unit, used to judge whether the real-time operating power meets a preset unit power adjustment condition according to a preset operation control strategy; An adjustment unit is used to adjust the operating power of the unit according to the unit power adjustment value in the operation control strategy if the conditions are met.

9. An electronic device, characterized in that: The electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the method according to any one of claims 1 to 7 can be implemented.

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