Intelligent control method based on temperature of nuclear power plant, electronic device and storage medium

Abstract

Embodiments of the present application disclose an intelligent control method based on nuclear power plant temperature, an electronic device and a storage medium. The method monitors the nuclear power plant in the running state, generates the maximum average temperature of the primary loop, the average reference temperature, and the power mismatch change rate between the primary loop and the secondary loop according to the monitoring information, fuses and calculates the maximum average temperature, the average reference temperature and the power mismatch change rate to generate the average temperature deviation, and controls the power rod of the nuclear power plant to realize intelligent control of the primary loop, significantly improves the response speed of the nuclear power plant under the load transient working condition, effectively solves the problems of regulation lag, weak anti-interference ability and difficult fault positioning of the nuclear power plant in the transient process, makes the primary loop temperature control of the nuclear power plant have higher safety, stability and reliability, and guarantees the long-term safe and stable operation of the unit under complex operating environment.

Description

Technical Field

[0001] This application relates to the field of nuclear power plant operation control technology, and in particular to an intelligent control method, electronic equipment and storage medium based on the temperature of a nuclear power plant. Background Technology

[0002] During the operation of nuclear power plants, temperature control is usually monitored and controlled using simplified flowcharts, which make it difficult to intuitively reflect the logical actions and transient processes related to average temperature. Especially during unit startup or transient conditions with rapid load changes, it is impossible to identify single-loop temperature anomalies or power mismatch risks in a timely manner, which can easily lead to local overheating or reactor power oscillations, affecting the safe and stable operation of the unit. Summary of the Invention

[0003] Based on this, this application provides an intelligent control method, electronic device, and storage medium based on nuclear power plant temperature, aiming to... In a first aspect, this application provides an intelligent control method based on the temperature of a nuclear power plant, comprising: The monitoring of a nuclear power plant in operation is carried out to obtain monitoring information about the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; Based on the monitoring information, the maximum average temperature, average reference temperature, and power mismatch rate between the primary and secondary loops are generated. Based on the maximum average temperature, average reference temperature, and power mismatch rate of change, the average temperature deviation between the primary and secondary loops is generated. The power rods of a nuclear power plant are controlled based on the average temperature deviation to enable intelligent control of the primary loop.

[0004] Secondly, this application provides an intelligent control device based on the temperature of a nuclear power plant, comprising: The monitoring unit is used to monitor the nuclear power plant in operation and obtain monitoring information about the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; The first generation unit is used to generate the maximum average temperature, average reference temperature, and power mismatch rate of change between the first and second loops based on the monitoring information. The second generation unit is used to generate the average temperature deviation between the primary and secondary loops based on the maximum average temperature, average reference temperature and power mismatch change rate. The control unit is used to control the power rods of the nuclear power plant based on the average temperature deviation, so as to provide intelligent control of the primary loop.

[0005] Thirdly, embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the intelligent control method based on nuclear power plant temperature as provided in the first aspect above.

[0006] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to execute the intelligent control method based on nuclear power plant temperature provided in the first aspect.

[0007] Fifthly, embodiments of this application also provide a computer program product, including a computer program or instructions, which are executed by a processor to provide the intelligent control method based on nuclear power plant temperature provided in the first aspect.

[0008] The intelligent control method based on nuclear power plant temperature provided in this application monitors the nuclear power plant in operation and generates the maximum average temperature, average reference temperature, and power mismatch rate of change between the primary and secondary loops based on the monitoring information. The maximum average temperature, average reference temperature, and power mismatch rate of change are integrated to calculate the average temperature deviation, and the power rods of the nuclear power plant are controlled to achieve intelligent control of the primary loop. This significantly improves the response speed of the nuclear power plant under transient load conditions and effectively solves the problems of slow regulation, weak anti-interference ability, and difficulty in fault location during transient processes. This makes the primary loop temperature control of the nuclear power plant more safe, stable, and reliable, ensuring the long-term safe and stable operation of the unit in complex operating environments. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 A flowchart illustrating the intelligent control method based on nuclear power plant temperature provided in this application embodiment; Figure 2 A schematic block diagram of an intelligent control device based on nuclear power plant temperature provided for embodiments of this application; Figure 3 A schematic block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0012] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0013] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0015] Furthermore, in this application, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific implementation.

[0016] In related technologies, nuclear power plants are equipped with a thermodynamic cycle system, which includes a primary loop, a secondary loop, and a tertiary loop. The primary loop is used to convert nuclear fission energy into thermal energy and remove heat from the reactor core; the secondary loop is used to convert the thermal energy transferred from the primary loop into mechanical energy (driving the steam turbine), which in turn drives the generator to produce electricity; the tertiary loop is used to remove the waste heat from the secondary loop after it has done its work, causing the exhaust steam to condense into water, thus forming a closed-loop thermodynamic cycle.

[0017] Therefore, the primary loop, as the main loop of a nuclear power plant, has the main function of transferring the heat generated by nuclear fission in the reactor core to the secondary loop through the steam generator, while cooling the reactor core and preventing the fuel elements from burning or being destroyed. Thus, the temperature control of the primary loop is of paramount importance.

[0018] However, in the existing digital control systems of nuclear power plants, the thermal cycle system only maintains thermal balance by collecting temperature sensor data and power signals from each loop. This often results in a lag in response when facing rapid fluctuations in grid load or transient conditions, and a lack of automated intelligent decision-making means. This makes it difficult to identify the root cause of temperature control anomalies in a timely and accurate manner, affecting the safety margin and control quality of the unit during transient processes.

[0019] To address this, this application provides an intelligent control method based on nuclear power plant temperature. By monitoring the nuclear power plant in operation and generating the maximum average temperature, average reference temperature, and power mismatch rate of change between the primary and secondary loops based on the monitoring information, the method integrates the maximum average temperature, average reference temperature, and power mismatch rate of change to calculate the average temperature deviation. This deviation is then used to control the power rods of the nuclear power plant, achieving intelligent control of the primary loop. This significantly improves the response speed of the nuclear power plant under transient load conditions, effectively solving the problems of lag in regulation, weak anti-interference capability, and difficulty in fault location during transient processes. This results in higher safety, stability, and reliability in the primary loop temperature control of the nuclear power plant, ensuring the long-term safe and stable operation of the unit in complex operating environments.

[0020] The intelligent control method based on nuclear power plant temperature provided in this application can be applied to terminal devices, and the method is executed through application software installed on the terminal device. The terminal device can be a desktop computer, laptop computer, tablet computer, or mobile phone, etc.

[0021] It should be noted that the application scenarios described in the following embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0022] The intelligent control method based on nuclear power plant temperature provided in this application will be described in detail below.

[0023] like Figure 1 As shown, the method includes the following steps S110 to S140.

[0024] S110. Monitor the nuclear power plant in operation and obtain monitoring information of the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; S120. Based on the monitoring information, generate the maximum average temperature, average reference temperature, and power mismatch rate of change between the first and second circuits of the primary circuit. S130. Generate the average temperature deviation between the primary and secondary loops based on the maximum average temperature, average reference temperature, and power mismatch rate of change. S140. Control the power rods of the nuclear power plant based on the average temperature deviation to achieve intelligent control of the primary loop.

[0025] In this embodiment, monitoring information can be understood as a set of physical quantity data reflecting the real-time operating status of a nuclear power plant. The monitoring information can come from sensors and instrumentation systems deployed at various key nodes of the nuclear power plant.

[0026] The thermal cycle system can be understood as the core carrier of energy conversion in a nuclear power plant. The primary loop of the thermal cycle system can serve as the main coolant system, responsible for transferring the heat generated by nuclear fission in the reactor core to the steam generator and cooling the reactor core to prevent fuel elements from burning out. The secondary loop of the thermal cycle system can serve as the power conversion system, and use the heat transferred from the primary loop to generate steam to drive the turbine to generate electricity.

[0027] The primary and secondary loops can exchange heat through the heat transfer tube walls inside the steam generator. They are completely isolated materially and are connected only through heat conduction.

[0028] Specifically, in the process of monitoring a nuclear power plant in operation, this application can collect temperature signals from the reactor coolant pump (RCP), nuclear power signals from the reactor protection system (RPN), and electrical power signals from the turbine regulation and protection system (GRE) to obtain monitoring information.

[0029] The monitoring information may include the measured temperatures of the hot and cold ends of each loop in the primary loop, and the steam pressure or flow data of the secondary loop.

[0030] The maximum average temperature can be understood as the maximum value selected from the average temperatures of multiple parallel loops in the primary loop. The maximum average temperature is used to characterize the most severe thermal state of the reactor coolant system. Specifically, the maximum average temperature can be calculated based on the average temperature of each loop in the primary loop from the monitoring data of the hot and cold ends, and then determined by the maximum value selection logic.

[0031] The average reference temperature can be understood as the reference temperature set for the primary loop, and it can be used as a baseline for temperature control of the primary loop. The average reference temperature can be determined based on the electrical power information of the secondary loop through a functional relationship transformation.

[0032] The power mismatch rate of change can be understood as the rate of change of the difference between the primary loop nuclear power and the secondary loop electrical power over time. The power mismatch rate of change can be used as an open-loop feedforward compensation term to predict the dynamic imbalance trend of energy supply and demand in advance and improve the regulation speed.

[0033] Specifically, in the process of generating the maximum average temperature, average reference temperature, and power mismatch rate of change based on monitoring information, this application can calculate the average temperature of each loop in the primary loop separately, and select the maximum value as the maximum average temperature by comparison, so as to reflect the fault safety principle and prevent the risk of high temperature in other loops from being masked by local low temperature measuring points. At the same time, the average reference temperature is generated based on the real-time electrical power of the secondary loop (such as turbine load) and the power-temperature curve. In addition, this application can also calculate the difference between the nuclear power of the primary loop and the electrical power of the secondary loop in real time, and perform differential calculation on the difference to obtain the power mismatch rate of change.

[0034] The average temperature deviation can be understood as the core error signal driving reactor power regulation. It can be calculated by substituting the average reference temperature, maximum average temperature, and the power mismatch rate of change (corrected by a coefficient) into a preset control formula. This effectively overcomes the hysteresis characteristics of a large inertial system, providing precise and advanced commands for subsequent control rod actions. The control formula can be:

[0035] in, A coefficient is added to account for the size of the mismatch, used to reduce the open-loop gain when the power mismatch is small to avoid over-tuning; A coefficient is used to adjust system stability, reducing gain under high load conditions to maintain system stability; e is the average temperature deviation. The average reference temperature, The maximum average temperature; P1 is the nuclear power of the primary loop and P2 is the electrical power of the secondary loop as a function of time; P2 is the nuclear power of the primary loop and P1 is the electrical power of the secondary loop load; d is the differential symbol; dt is the time differential element; and t is the time independent variable.

[0036] Power rods can be understood as control rod assemblies inserted into the reactor core to absorb neutrons and regulate reactivity. Power rods can change the neutron flux distribution in the core and thus adjust the reactor power.

[0037] In the process of controlling the power rod, a rod position indicator and rod control system (RGL) can be used to drive the power rod to perform lifting or insertion actions.

[0038] Specifically, in the process of intelligently controlling the primary loop by controlling the power rods of a nuclear power plant based on the average temperature deviation, this application addresses the issue of average temperature deviation... When the actual temperature is lower than the target temperature or the power demand increases, a rod-lifting command is output to drive the power rod upwards, reducing neutron absorption and intensifying the nuclear reaction, thereby increasing the primary circuit temperature; when the average temperature deviation... When the actual temperature is higher than the target temperature or there is excess power, an insertion command is output to drive the power rod to insert downwards, increasing neutron absorption, suppressing nuclear reactions, and thus reducing the primary circuit temperature; when the average temperature deviation... At the same time, the position of the power rod remains unchanged, thereby realizing automatic tracking and stable control of reactor temperature and power, effectively avoiding the lag of manual intervention, and ensuring the safe and efficient operation of the unit under various operating conditions.

[0039] In this application, by selecting the maximum average temperature as the feedback quantity and combining it with the multi-loop temperature monitoring logic of the primary loop, the risk of misjudgment caused by single-point measurement errors is eliminated, ensuring the conservatism and reliability of the control reference. At the same time, by introducing the average reference temperature determined by the secondary loop load, this application realizes the automatic following of reactor power to grid demand. In addition, by using the feedforward compensation mechanism of power mismatch rate of change, this application can detect the imbalance trend of energy supply and demand in advance and drive the power rod to operate before the temperature deviation has formed significantly, which significantly shortens the transient adjustment time. This allows the control rod to respond to load changes with the optimal strategy, which not only prevents local overheating of the core, but also improves the robustness of the unit in dealing with transient conditions, realizing the intelligent upgrade of temperature control in nuclear power plants.

[0040] In some embodiments, the thermal cycle system further includes a three-loop system, where the primary loop includes a first loop, a second loop, and a third loop. The monitoring information includes a first temperature information of the first loop, a second temperature information of the second loop, a third temperature information of the third loop, electrical power information of the nuclear power plant, and nuclear power information. In step S120, based on the monitoring information, the maximum average temperature, average reference temperature, and power mismatch change rate between the primary loop and the second loop are generated, including: generating the maximum average temperature of the primary loop based on the first temperature information, the second temperature information, and the third temperature information; generating the average reference temperature of the primary loop based on the electrical power information; and generating the power mismatch change rate based on the electrical power information and the nuclear power information.

[0041] In this embodiment, the first temperature information can be understood as the coolant temperature data in the first loop of a circuit, the second temperature information can be understood as the coolant temperature data in the second loop of a circuit, and the third temperature information can be understood as the coolant temperature data in the third loop of a circuit.

[0042] Electric power information can be understood as the grid output power signal obtained by measuring the generator end. Electric power information can reflect the actual load demand of the secondary circuit.

[0043] Nuclear power information can be understood as the reactor neutron flux rate signal measured by the nuclear instrumentation system (RPN). Nuclear power information can reflect the actual heat production power of the primary loop.

[0044] The first temperature information may include the hot section temperature and cold section temperature of the first loop, the second temperature information may include the hot section temperature and cold section temperature of the second loop, and the third temperature information may include the hot section temperature and cold section temperature of the third loop.

[0045] Specifically, in the process of generating the maximum average temperature based on the first temperature information, the second temperature information, and the third temperature information, this application can calculate the average temperature of the first loop based on the first temperature information of the first loop, calculate the average temperature of the second loop based on the second temperature information of the second loop, and calculate the average temperature of the third loop based on the third temperature information of the third loop to extract the maximum average temperature. Thus, under the premise of following the fail-safe principle, it can ensure that when local overheating or measurement deviation occurs in any loop, adjustment can be achieved under the worst temperature conditions to prevent the risk of overall high temperature from being masked by local low temperature.

[0046] For example, if the average temperature of the first loop is 310°C, the temperature of the second loop is 308°C, and the equivalent temperature index of the third loop rises to 312°C due to poor heat dissipation, then the maximum average temperature generated is 312°C. This ensures that the reactor power regulation action can respond in a timely manner to the highest temperature constraint in the system and effectively avoid fuel element overheating damage.

[0047] In addition, during the process of generating the average reference temperature based on the electric power information, the average reference temperature can be obtained by mapping and converting the electric power information with the power-temperature correspondence curve.

[0048] Meanwhile, the power information usually contains power measurements from multiple channels. Before the power information is mapped and converted, it can be filtered (e.g., the second smallest value is taken to remove abnormally high values) and then mapped and converted to obtain a reliable average reference temperature.

[0049] In the process of generating the power mismatch change rate based on electrical power information and nuclear power information, the electrical power information and nuclear power information can be processed separately to obtain the electrical power value characterizing the load of the secondary loop and the nuclear power value characterizing the heat generation of the primary loop, and the power mismatch information between the two (i.e., P1-P2) can be calculated. Finally, the power mismatch information can be differentiated to obtain the power mismatch change rate.

[0050] Among them, power mismatch information can reflect the imbalance between reactor heat generation and turbine heat consumption.

[0051] In this application, by determining the maximum average temperature of the primary loop from the first temperature information, the second temperature information, and the third temperature information, the accuracy of fault identification on the condenser side can be enhanced. At the same time, by using the power information to simultaneously drive the generation of the average reference temperature and the calculation of the power mismatch change rate, the load signal can be reused in closed-loop setting and open-loop feedforward, effectively solving the technical problems of transient response lag and incomplete thermal state characterization of the entire system caused by the lack of monitoring dimensions in nuclear power plants.

[0052] In some embodiments, generating the maximum average temperature of a loop based on the first temperature information, the second temperature information, and the third temperature information includes: generating a first average temperature of the first loop, a second average temperature of the second loop, and a third average temperature of the third loop based on the first temperature information, the second temperature information, and the third temperature information, respectively; and generating the maximum average temperature based on the first average temperature, the second average temperature, and the third average temperature.

[0053] In this embodiment, the first temperature information can be obtained from the data collected by the temperature sensor in the first loop, the second temperature information can be obtained from the data collected by the temperature sensor in the second loop, and the third temperature information can be obtained from the data collected by the temperature sensor in the third loop.

[0054] The first average temperature can be obtained by averaging or weighting the hot-end temperature and cold-end temperature of the first loop. The second average temperature can be obtained by averaging or weighting the hot-end temperature and cold-end temperature of the second loop. The third average temperature can be obtained by averaging or weighting the hot-end temperature and cold-end temperature of the third loop.

[0055] The maximum average temperature can be understood as the average temperature obtained by comparing the average temperatures calculated by the first, second, and third loops in real time. This maximum average temperature can serve as the core feedback signal of the nuclear power plant's temperature control system (i.e., The temperature is used to characterize the most demanding thermal conditions in the current reactor coolant system. It follows the fail-safe principle, that is, it uses the temperature under the most unfavorable conditions as the control benchmark. It can ensure that even if an abnormally high temperature occurs in one loop while other loops are normal, it can respond in time and drive the power rods to adjust, thereby effectively avoiding damage to fuel elements due to local overheating and significantly improving the safety of unit operation.

[0056] For example, if the first average temperature of the first loop is 310℃, the second average temperature of the second loop is 308℃, and the third average temperature of the third loop is 312℃, then 312℃ is determined as the maximum average temperature.

[0057] It should be noted that the single loop mentioned in this application is not limited to the first loop, the second loop and the third loop. Other numbers of loops can be set in the single loop, which can be selected according to the actual application. This application does not make specific limitations in this regard.

[0058] In this application, by using the hot and cold end temperatures of each loop to generate a first average temperature, a second average temperature, and a third average temperature, the random noise and local thermal fluctuations of single-point sensors are effectively filtered out. The maximum average temperature is extracted from the first average temperature, the second average temperature, and the third average temperature, simplifying the complex thermal state of multiple loops into a single and conservative control benchmark. This not only solves the problem that directly selecting the highest temperature at a single point is easily affected by measurement errors, but also overcomes the defect that simple arithmetic averaging may mask the risk of local hot spots.

[0059] Meanwhile, the first, second, and third average temperatures serve as intermediate variables, providing accurate physical input for the generation of the maximum average temperature. They also lay the data foundation for subsequent temperature deviation diagnosis and alarm logic (such as detecting the deviation between a single loop and the overall average). The maximum average temperature directly participates in the calculation of the average temperature deviation, ensuring that the control rod actions are always based on the safest operating condition boundary. This greatly enhances the robustness and safety of nuclear reactor temperature control while ensuring the unit's transient response speed.

[0060] In some embodiments, the first temperature information includes a first cold-end temperature and a first hot-end temperature of a first loop, the second temperature information includes a second cold-end temperature and a second hot-end temperature of a second loop, and the third temperature information includes a third cold-end temperature and a third hot-end temperature of a third loop; generating a first average temperature of the first loop, a second average temperature of the second loop, and a third average temperature of the third loop based on the first temperature information, the second temperature information, and the third temperature information includes: generating a first average temperature based on the first cold-end temperature and the first hot-end temperature; generating a second average temperature based on the second cold-end temperature and the second hot-end temperature; and generating a third average temperature based on the third cold-end temperature and the third hot-end temperature.

[0061] In this embodiment, the cold end temperature and hot end temperature of each loop in the primary loop are collected, which can comprehensively characterize the temperature distribution range of the primary loop during the heat exchange process. This provides basic data support for subsequent calculation of the average temperature of a representative primary loop, ensuring that temperature monitoring covers the key nodes of the entire thermal-hydraulic cycle and avoiding the risk of local deviation that may be caused by single-point measurement.

[0062] Specifically, in the process of generating the first average temperature based on the first cold end temperature and the first hot end temperature, the cold end temperature and the hot end temperature in the first loop can be arithmetically averaged to obtain the first average temperature.

[0063] Similarly, in the process of generating the second and third average temperatures, the cold end temperature and the hot end temperature in the second loop can be arithmetically averaged to obtain the second average temperature, and the cold end temperature and the hot end temperature in the third loop can be arithmetically averaged to obtain the third average temperature. This effectively avoids the limitations of single-point temperature measurement and ensures that the control system can respond quickly based on an accurate temperature reference under transient conditions in nuclear power plants, thereby ensuring the safety and stability of reactor core cooling.

[0064] In some embodiments, after generating the first average temperature of the first loop, the second average temperature of the second loop, and the third average temperature of the third loop based on the first temperature information, the second temperature information, and the third temperature information, the method further includes: generating the average temperature of the three loops of a loop based on the first average temperature, the second average temperature, and the third average temperature; generating the first temperature deviation between the average temperature of the three loops of the loop and the first average temperature, the second average temperature, and the third average temperature, respectively; and generating the first temperature alarm information of the corresponding module in the loop if any of the first temperature deviations is greater than or equal to a preset first temperature threshold.

[0065] In this embodiment, the average temperature of the three loops in a single loop can be understood as the average value obtained by arithmetically averaging the first, second, and third average temperatures, in order to identify abnormal deviations in a single loop or measuring point. For example, if the first average temperature is 300°C, the second average temperature is 298°C, and the third average temperature is 302°C, then the average temperature of the three loops in the generated single loop can be 300°C.

[0066] The first temperature deviation can be understood as the temperature difference between the average temperature of each loop in a loop and the average temperature of the three loops in a loop. It can reflect the degree of dispersion of the average temperature of each loop in a loop based on the average temperature of the three loops in a loop, thereby achieving the initial screening of fault sources.

[0067] The first temperature threshold can be understood as a critical value used to determine whether the temperature distribution is abnormal. It can be set according to the nuclear power plant operation procedures or safety standards, and can be set to 5%.

[0068] The first temperature alarm message can be understood as a visual or signal prompt generated when an anomaly is detected, to remind operators to intervene and check.

[0069] Specifically, in the process of generating the first temperature alarm information of the corresponding module in the primary loop, this application can compare each first temperature deviation calculated in real time with the preset first temperature threshold. Once any deviation value reaches or exceeds the threshold, that is, any one of the multiple first temperature deviations exceeds the first temperature threshold, it is determined that the corresponding monitoring module in the primary loop has a fault or abnormality. This realizes the automatic identification and accurate location of the fault of the temperature measurement module in each loop in the primary loop, effectively avoids the control misjudgment caused by the distortion of data from a single sensor, and significantly improves the unit's monitoring capability and safety response speed in transient processes.

[0070] For example, if the first temperature threshold is 5%, when the deviation rate between the average temperature of a certain loop and the average temperature of the first loop reaches 6%, the first temperature alarm information for the corresponding module of that loop will be generated immediately.

[0071] In practical applications, the first temperature alarm information can be represented by a color change of the corresponding parameter value module on the DCS screen, such as changing from normal green to red, and illuminating the corresponding deviation loop indicator.

[0072] In some embodiments, the power information includes at least three first power values; generating an average reference temperature based on the power information includes: extracting the second smallest first power value from the at least three first power values ​​and converting the second smallest first power value into a first reference temperature; generating an average reference temperature based on a preset set temperature and the first reference temperature.

[0073] In this embodiment, the first electrical power can be understood as the real-time electrical power signal acquired from a single measurement channel in the secondary loop turbine control system of the nuclear power plant. During the operation of a nuclear power plant, in order to ensure the reliability and redundancy of power measurement, multiple independent sensors or measurement channels are usually deployed to monitor the same physical quantity.

[0074] The first electrical power can be the measured value of the steam flow rate of the secondary circuit or the generator output power. This first electrical power can serve as the basic input data for generating the average reference temperature, reflecting the current load demand of the unit. For example, this application can collect the electrical power signals output from three independent channels, denoted as... , and .

[0075] The second smallest first power can be understood as the first power that is second in order of size among at least three sets of first power values, in order to eliminate possible abnormal extreme values, thereby obtaining a first power that is neither too high nor too low and has high robustness.

[0076] Specifically, in the process of extracting the second smallest first electric power from at least three first electric power values, this application can compare and sort the at least three first electric power values. If there are three values, the middle value is directly selected as the second smallest value. If there are more than three values, the second value after sorting is selected. This can effectively eliminate the maximum instantaneous overshoot caused by sensor failure (preventing misjudgment as high load and blindly raising the rods), and can also avoid the extremely low minimum value caused by sensor disconnection or drift to a certain extent (preventing misjudgment as low load and emergency shutdown). Compared with simple average or median processing, it is more adaptable to the safety requirements of nuclear power plant transient operating conditions.

[0077] Furthermore, in the process of converting the second smallest value of the first electrical power into the first reference temperature, this application can use a preset power-temperature correspondence curve or function generator to map the selected robust power value to the corresponding target temperature value, thereby significantly reducing the interference of single-point sensor failure on the temperature setpoint and ensuring that the generated first reference temperature truly reflects the safe operating load of the unit.

[0078] For example, when the extracted second-smallest first electric power is 900MW, it can be determined according to a preset linear or nonlinear mapping relationship (such as...). ), convert it to the corresponding first reference temperature, such as .

[0079] The set temperature can be understood as the basic temperature threshold set for a loop under a specific operating mode or reference state. The set temperature can serve as a baseline or safety net for temperature control, preventing the loss of control reference in case of abnormal calculation of the first reference temperature or extreme operating conditions.

[0080] Specifically, in the process of generating the average reference temperature, this application can switch between the preset set temperature and the first reference temperature according to the current operating mode, or perform weighted fusion of the two. This not only enables the unit to respond quickly to changes in grid load, but also provides a smooth transition and safety margin during sensor signal distortion or system switching, effectively avoiding reactor power oscillations caused by sudden changes in reference temperature.

[0081] For example, in automatic tracking mode, the system mainly generates an average reference temperature based on the first reference temperature to enable the reactor power to follow changes in the turbine load; while in manual intervention mode or in the event of a faulty automatic signal quality, the system can switch to using a preset set temperature as the average reference temperature to ensure the stability of the control system.

[0082] In this application, by collecting at least three first electrical power values ​​and employing a second-smallest value extraction strategy, abnormally high or low values ​​caused by a single sensor failure can be filtered out at the source, ensuring the purity and safety of the input data. This data is then converted into a first reference temperature, enabling the temperature setpoint to accurately track the actual load demand of the secondary loop. Simultaneously, combined with the preset setpoint temperature, a final average reference temperature is generated. This allows the control system to possess both sensitive load following capability and a safety fallback capability under extreme abnormal conditions, significantly improving the anti-interference capability and transient response safety of the nuclear power plant temperature control system. It effectively solves the technical problem of incorrect temperature setpoint setting due to single-point signal distortion in the primary loop.

[0083] In some embodiments, the intelligent control method based on the temperature of a nuclear power plant further includes: converting each first electrical power to a temperature to obtain a second reference temperature; generating a second temperature deviation between the second reference temperature and the set temperature; and generating a second temperature alarm information for the corresponding module in the second loop if the second temperature deviation is greater than or equal to a preset second temperature threshold.

[0084] In this embodiment, the present application can perform temperature conversion on each first electric power to obtain a second reference temperature, and generate a second temperature deviation between the second reference temperature and the set temperature. At the same time, it can determine whether the second temperature deviation is greater than or equal to a preset second temperature threshold. If the second temperature deviation is greater than or equal to the preset second temperature threshold, a second temperature alarm message for the corresponding module in the second loop is generated, thereby determining that the temperature control abnormality comes from a fault in the second loop set temperature module.

[0085] The second temperature threshold can be understood as a critical value preset based on the safety margin of the second circuit and the allowable range of measurement error, used to determine whether the temperature deviation constitutes a fault in the second circuit setting temperature module.

[0086] The second temperature alarm can be understood as follows: when the absolute value of the second temperature deviation of any channel exceeds or equals the second temperature threshold, the control system immediately triggers the alarm logic and locates and highlights the display module corresponding to the abnormal power channel on the human-machine interface (HMI). For example, if the second temperature threshold is 5%, and the second temperature deviation of a certain channel reaches 6%, the channel is determined to be abnormal. The control system then changes the value module representing the turbine power measurement point (e.g., GRE022MP) on the DCS screen from normal green to red and displays the second temperature alarm. This achieves rapid location and visual warning of faults at specific measurement points on the secondary circuit side, avoiding misjudgments caused by a single sensor failure, ensuring that operators can quickly isolate the fault source, and effectively improving the unit's fault location capability and operational reliability during transient processes.

[0087] In some embodiments, generating a power mismatch change rate based on electrical power information and nuclear power information includes: generating the nuclear power corresponding to the primary loop based on the nuclear power information, and generating the electrical power corresponding to the secondary loop based on the electrical power information; generating power mismatch information between the nuclear power corresponding to the primary loop and the electrical power corresponding to the secondary loop, and performing a differential operation on the power mismatch information to obtain the power mismatch change rate.

[0088] In this embodiment, during the process of generating the nuclear power corresponding to the primary loop based on the nuclear power information and generating the electric power corresponding to the secondary loop based on the electric power information, the maximum or average value can be extracted from the nuclear power information as the nuclear power corresponding to the primary loop, and the turbine load signal after the second smallest value logic processing can be extracted from the electric power information as the electric power corresponding to the secondary loop, so as to provide accurate input data for subsequent deviation calculation, thereby ensuring that the control logic makes decisions based on the real energy flow state.

[0089] Power mismatch information can be understood as the difference between the nuclear power corresponding to the primary loop and the electrical power corresponding to the secondary loop. Power mismatch information can be obtained by subtracting the electrical power corresponding to the secondary loop from the nuclear power corresponding to the primary loop. Power mismatch information can quantify the instantaneous imbalance between reactor heat production and turbine heat consumption. When When this occurs, it indicates that the heat generated in the reactor core is greater than the heat removed by the secondary loop, and the primary loop temperature shows an upward trend; when This indicates that the secondary loop removes heat faster than the core generates heat, and the primary loop temperature shows a downward trend.

[0090] Specifically, when the turbine load suddenly fluctuates significantly (such as load shedding) and causes a sharp change in power mismatch, the rate of change of power mismatch can be quickly captured through differential calculation, generating a significant control signal without waiting for the actual temperature shift.

[0091] For example, if the secondary loop power suddenly drops by 10% within 1 second while the primary loop nuclear power has not yet responded, the power mismatch information will generate a large positive step. After differential calculation, a very large positive rate of change is obtained. This rate of change will be used as a feedforward signal to immediately act on the control rod drive mechanism, inserting the control rod in advance to suppress the rapid rise in primary loop temperature. This can significantly improve the response speed of the nuclear power plant temperature control system to transient conditions, effectively avoiding the risk of overshoot and oscillation caused by simply relying on temperature feedback regulation, and ensuring the safe and stable operation of the unit in dynamic processes.

[0092] In some embodiments, the electrical power information includes a plurality of second electrical powers, and the nuclear power information includes a plurality of first nuclear powers; generating the nuclear power corresponding to the first loop based on the nuclear power information, and generating the electrical power corresponding to the second loop based on the electrical power information, includes: extracting the first nuclear power with the maximum value from the plurality of first nuclear powers, and using the first nuclear power with the maximum value as the nuclear power corresponding to the first loop; and extracting the electrical power corresponding to the second loop from the plurality of second electrical powers.

[0093] In this embodiment, the first nuclear power can be understood as the reactor thermal power data collected in real time through multiple independent measurement channels of the nuclear instrumentation system (RPN) of the nuclear power plant. In large pressurized water reactor nuclear power plants, in order to ensure measurement redundancy and safety, four or more independent nuclear power measurement channels (e.g., RPN010MA, RPN020MA, RPN030MA, and RPN040MA) are usually set up, and each channel can independently output a first nuclear power value.

[0094] Specifically, in the process of extracting the maximum value of the first nuclear power from multiple first nuclear power values ​​and using the maximum value of the first nuclear power value as the nuclear power corresponding to the primary loop, the maximum value selection logic can be executed to filter out the first nuclear power value with the largest value and directly define it as the nuclear power corresponding to the primary loop used in subsequent calculations. This follows the fail-safe principle of nuclear power plant control. Furthermore, when a certain measurement channel drifts, jams, or indicates a low value, selecting the maximum value can ensure that the control system always makes judgments based on the most conservative (i.e., highest power) operating condition, thereby avoiding problems such as insufficient cooling capacity or underestimation of power mismatch calculation due to underestimation of reactor power, which can lead to regulation lag.

[0095] In this application, by extracting the maximum value from multiple first nuclear power sources and combining it with a mechanism that extracts the corresponding electrical power from multiple second electrical power sources, an asymmetric data processing strategy of conservative primary loop and precise secondary loop is formed. This not only solves the computational uncertainty caused by the inconsistency of multi-source signals, but also makes the generated power mismatch information (primary loop nuclear power minus secondary loop electrical power) naturally biased towards the safety side in the dynamic process. As a result, when there is measurement uncertainty in reactor power, it tends to assume that the power is higher, thereby triggering a stronger open-loop feedforward adjustment action (i.e., a larger power mismatch change rate), prompting the control rods to respond to load changes earlier and faster. This effectively avoids misadjustment or slow adjustment caused by single-point sensor failure, significantly improves the temperature control stability and response speed of the nuclear power plant under transient conditions, and ensures that the reactor coolant system always operates within the safety margin.

[0096] In some embodiments, the intelligent control method based on the temperature of a nuclear power plant further includes: calculating multiple first nuclear powers to obtain an average nuclear power of the first nuclear powers; generating nuclear power deviations between the average nuclear power and each first nuclear power; and generating third temperature alarm information for the monitoring module corresponding to the reactor of the nuclear power plant if any nuclear power deviation is greater than or equal to a preset power deviation threshold.

[0097] In this embodiment, the average nuclear power can be understood as a benchmark reference value obtained by statistically calculating multiple first nuclear powers, which is used to characterize the current overall power level of the reactor.

[0098] Specifically, in the process of generating the average core power of the first core power, this application can obtain the arithmetic mean by adding multiple first core power values ​​and dividing by the number of channels, or by using a weighted average algorithm.

[0099] Meanwhile, when the first nuclear power originates from multiple independent measurement channels of the nuclear instrumentation system (RPN) (e.g., RPN010MA, RPN020MA, RPN030MA, RPN040MA), the average nuclear power can serve as a group benchmark, smoothing out any random noise or instantaneous fluctuations that may exist in a single channel, thus providing a stable comparison benchmark. It can also serve as a reference standard for subsequent deviation calculations, and by comparing it with the measured values ​​of each independent channel, abnormal channels that significantly deviate from the normal range can be identified.

[0100] Nuclear power deviation can be understood as the difference or relative proportion between the measured value of each first nuclear power and the average nuclear power. Nuclear power deviation can quantify the degree of deviation of a single channel relative to the overall level.

[0101] Specifically, in the process of generating nuclear power deviation, this application calculates the percentage value obtained by subtracting the average nuclear power from the absolute difference of each first nuclear power and then dividing it by the average nuclear power. If the nuclear power deviation of a certain channel is too large, it indicates that the sensor in that channel may be drifting, disconnected, or interfered with, causing its reading to fail to represent the true core power status.

[0102] The power deviation threshold can be understood as a pre-set critical value used to determine whether a nuclear power channel has malfunctioned. It is usually set as a fixed percentage (such as 5%) according to the nuclear power plant safety operation specifications.

[0103] The third temperature alarm information can be understood as an indirect early warning signal generated based on the risk of temperature runaway caused by abnormal nuclear power. The third temperature alarm information is essentially a fault indication of the health status of the nuclear instrumentation system (RPN) monitoring module.

[0104] Specifically, when any nuclear power deviation is greater than or equal to a preset power deviation threshold, an alarm logic is immediately triggered, generating a third temperature alarm message that is bound one-to-one with the first nuclear power channel of the abnormality. This third temperature alarm message can be visually indicated by illuminating a red indicator light or a red frame on the corresponding monitoring module on the Distributed Control System (DCS) interface, thus alerting operators to a malfunction in that specific channel.

[0105] In this application, by generating the average nuclear power of multiple first nuclear power units and comparing it with each first nuclear power unit as a benchmark to generate nuclear power deviation, a third temperature alarm is triggered using a preset power deviation threshold. This enables the automatic identification of abnormal channels that significantly deviate from the group level and issues early warnings, filling the diagnostic gap between nuclear power acquisition and temperature control. It also greatly shortens the fault detection and handling time, effectively avoiding misadjustment or reactor shutdown accidents caused by a single sensor failure, thereby significantly improving the operational safety and reliability of nuclear power plant units during transient processes.

[0106] In the intelligent control method based on nuclear power plant temperature provided in this embodiment of the invention, the nuclear power plant under operation is monitored, and based on the monitoring information, the maximum average temperature, average reference temperature, and power mismatch change rate between the primary and secondary loops are generated. The maximum average temperature, average reference temperature, and power mismatch change rate are fused together to generate the average temperature deviation, and the power rods of the nuclear power plant are controlled to achieve intelligent control of the primary loop. This significantly improves the response speed of the nuclear power plant under transient load conditions, effectively solves the problems of slow adjustment, weak anti-interference ability, and difficulty in fault location during transient processes, and makes the primary loop temperature control of the nuclear power plant have higher safety, stability, and reliability, ensuring the long-term safe and stable operation of the unit in complex operating environments.

[0107] In some embodiments, the present invention also provides an intelligent control device 200 based on nuclear power plant temperature, which is used to execute any of the aforementioned intelligent control methods based on nuclear power plant temperature.

[0108] For details, please refer to Figure 2 , Figure 2 This is a schematic block diagram of an intelligent control device 200 based on nuclear power plant temperature provided in an embodiment of the present invention.

[0109] like Figure 2 As shown, the intelligent control device 200 based on nuclear power plant temperature provided in this application includes: a monitoring unit 210, a first generation unit 220, a second generation unit 230, and a control unit 240.

[0110] The monitoring unit 210 is used to monitor the nuclear power plant in operation and obtain monitoring information of the nuclear power plant. The nuclear power plant is equipped with a thermal cycle system, which includes a primary loop and a secondary loop. The first generation unit 220 is used to generate the maximum average temperature, average reference temperature, and power mismatch rate of change between the primary and secondary loops based on the monitoring information. The second generation unit 230 is used to generate the average temperature deviation between the primary and secondary loops based on the maximum average temperature, average reference temperature, and power mismatch rate of change. The control unit 240 is used to control the power rods of the nuclear power plant based on the average temperature deviation to perform intelligent control of the primary loop.

[0111] The intelligent control device 200 based on nuclear power plant temperature provided in this application embodiment can monitor the nuclear power plant in operation and generate the maximum average temperature, average reference temperature, and power mismatch change rate between the primary and secondary loops based on the monitoring information. The maximum average temperature, average reference temperature, and power mismatch change rate are integrated to calculate the average temperature deviation, and the power rods of the nuclear power plant are controlled to achieve intelligent control of the primary loop. This significantly improves the response speed of the nuclear power plant under transient load conditions and effectively solves the problems of slow adjustment, weak anti-interference ability, and difficulty in fault location during transient processes. This makes the primary loop temperature control of the nuclear power plant more safe, stable, and reliable, ensuring the long-term safe and stable operation of the unit in complex operating environments.

[0112] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned intelligent control device based on nuclear power plant temperature and each unit can be referred to the corresponding description in the foregoing method embodiments. For the sake of convenience and brevity, it will not be repeated here.

[0113] The aforementioned intelligent control device based on nuclear power plant temperature can be implemented as a computer program, which can be used in, for example... Figure 3 It runs on the electronic device shown.

[0114] Please see Figure 3 , Figure 3 This is a schematic block diagram of an electronic device provided in an embodiment of the present invention.

[0115] See Figure 3 The device 300 includes a processor 302, a memory, and a network interface 305 connected via a system bus 301. The memory may include a storage medium 303 and internal memory 304.

[0116] The storage medium 303 may store an operating system 3031 and a computer program 3032. When the computer program 3032 is executed, it enables the processor 302 to execute an intelligent control method based on the temperature of the nuclear power plant.

[0117] The processor 302 provides computing and control capabilities to support the operation of the entire device 300.

[0118] The internal memory 304 provides an environment for the operation of the computer program 3032 in the non-volatile storage medium 303. When the computer program 3032 is executed by the processor 302, the processor 302 can execute an intelligent control method based on the temperature of the nuclear power plant.

[0119] This network interface 305 is used for network communication, such as providing the transmission of definition information. Those skilled in the art will understand that... Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the device 300 to which the present invention is applied. The specific device 300 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0120] The processor 302 is used to run the computer program 3032 stored in the memory to perform the following functions: monitor the nuclear power plant in operation and obtain monitoring information of the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; based on the monitoring information, generate the maximum average temperature, average reference temperature, and power mismatch rate of change between the primary and secondary loops; based on the maximum average temperature, average reference temperature, and power mismatch rate of change, generate the average temperature deviation between the primary and secondary loops; control the power rods of the nuclear power plant based on the average temperature deviation to perform intelligent control of the primary loop.

[0121] Those skilled in the art will understand that Figure 3The embodiments of device 300 shown do not constitute a limitation on the specific configuration of device 300. In other embodiments, device 300 may include more or fewer components than shown, or combine certain components, or have different component arrangements. For example, in some embodiments, device 300 may include only a memory and processor 302. In such embodiments, the structure and function of the memory and processor 302 are similar to those shown. Figure 3 The embodiments shown are consistent and will not be described again here.

[0122] It should be understood that, in this embodiment of the invention, the processor 302 may be a central processing unit (CPU), or it may be other general-purpose processors 302, digital signal processors 302 (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. The general-purpose processor 302 may be a microprocessor 302, or it may be any conventional processor 302, etc.

[0123] According to one aspect of this application, a computer program product or computer program is also provided, comprising computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the following steps: monitoring a nuclear power plant in operation to obtain monitoring information of the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; based on the monitoring information, generating a maximum average temperature, an average reference temperature, and a power mismatch rate of change between the primary and secondary loops; generating an average temperature deviation between the primary and secondary loops based on the maximum average temperature, the average reference temperature, and the power mismatch rate of change; and controlling the power rods of the nuclear power plant based on the average temperature deviation to perform intelligent control of the primary loop.

[0124] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program includes program instructions and 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 embodiments of the above methods.

[0125] In another embodiment of the invention, a computer storage medium is provided. This storage medium can be a non-volatile computer-readable storage medium or a volatile storage medium. The storage medium stores a computer program 3032, which, when executed by a processor 302, performs the following steps: monitoring a nuclear power plant in operation to obtain monitoring information about the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; based on the monitoring information, generating the maximum average temperature, average reference temperature, and power mismatch rate of change between the primary and secondary loops for the primary loop; generating the average temperature deviation between the primary and secondary loops based on the maximum average temperature, average reference temperature, and power mismatch rate of change; and controlling the power rods of the nuclear power plant based on the average temperature deviation to perform intelligent control of the primary loop.

[0126] The storage medium can be any computer-readable storage medium that can store program code, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0127] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0128] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0129] The steps in the methods of this application embodiment can be adjusted, merged, or deleted according to actual needs. The units in the apparatus of this application embodiment can be merged, divided, or deleted according to actual needs. Furthermore, the functional units in the various embodiments of this application 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.

[0130] If the integrated unit is implemented as 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 this application, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods provided in the various embodiments of this application.

[0131] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A smart control method based on the temperature of a nuclear power plant, characterized in that, include: The nuclear power plant in operation is monitored to obtain monitoring information of the nuclear power plant; the nuclear power plant is equipped with a thermal cycle system; the thermal cycle system includes a primary loop and a secondary loop; Based on the monitoring information, the maximum average temperature, average reference temperature, and power mismatch rate of change between the first loop and the second loop are generated. Based on the maximum average temperature, the average reference temperature, and the power mismatch rate of change, an average temperature deviation between the first loop and the second loop is generated. The power rods of the nuclear power plant are controlled based on the average temperature deviation to achieve intelligent control of the primary loop.

2. The intelligent control method based on nuclear power plant temperature according to claim 1, characterized in that, The primary loop includes a first loop, a second loop, and a third loop. The monitoring information includes the first temperature information of the first loop, the second temperature information of the second loop, the third temperature information of the third loop, the electrical power information and nuclear power information of the nuclear power plant. The step of generating the maximum average temperature, average reference temperature, and power mismatch rate of change between the first and second loops based on the monitoring information includes: Based on the first temperature information, the second temperature information, and the third temperature information, the maximum average temperature of the first loop is generated. Based on the electrical power information, the average reference temperature of the first circuit is generated; The power mismatch change rate is generated based on the electrical power information and the nuclear power information.

3. The intelligent control method based on nuclear power plant temperature according to claim 2, characterized in that, The step of generating the maximum average temperature of the first loop based on the first temperature information, the second temperature information, and the third temperature information includes: Based on the first temperature information, the second temperature information, and the third temperature information, the first average temperature of the first loop, the second average temperature of the second loop, and the third average temperature of the third loop are generated respectively. The maximum average temperature is generated based on the first average temperature, the second average temperature, and the third average temperature.

4. The intelligent control method based on nuclear power plant temperature according to claim 3, characterized in that, The first temperature information includes the first cold end temperature and the first hot end temperature of the first loop; the second temperature information includes the second cold end temperature and the second hot end temperature of the second loop; and the third temperature information includes the third cold end temperature and the third hot end temperature of the third loop. The step of generating a first average temperature for the first loop, a second average temperature for the second loop, and a third average temperature for the third loop based on the first temperature information, the second temperature information, and the third temperature information, respectively, includes: The first average temperature is generated based on the first cold end temperature and the first hot end temperature; The second average temperature is generated based on the second cold end temperature and the second hot end temperature; The third average temperature is generated based on the third cold end temperature and the third hot end temperature.

5. The intelligent control method based on nuclear power plant temperature according to claim 4, characterized in that, After generating the first average temperature of the first loop, the second average temperature of the second loop, and the third average temperature of the third loop based on the first temperature information, the second temperature information, and the third temperature information, the method further includes: The average temperatures of the three loops of the first loop are generated based on the first average temperature, the second average temperature, and the third average temperature. The average temperature of the three loops that generate the first loop is a first temperature deviation from the first average temperature, the second average temperature, and the third average temperature, respectively. If any of the first temperature deviations is greater than or equal to a preset first temperature threshold, a first temperature alarm message is generated for the corresponding module in the loop.

6. The intelligent control method based on nuclear power plant temperature according to claim 2, characterized in that, The power information includes at least three first power values; The step of generating the average reference temperature based on the electrical power information includes: From at least three first electric power values, the second smallest first electric power value is extracted, and the second smallest first electric power value is converted into a first reference temperature; The average reference temperature is generated based on the preset set temperature and the first reference temperature.

7. The intelligent control method based on nuclear power plant temperature according to claim 6, characterized in that, The method further includes: Each of the first electrical powers is converted to a temperature to obtain a second reference temperature; A second temperature deviation is generated between the second reference temperature and the set temperature; If the second temperature deviation is greater than or equal to the preset second temperature threshold, a second temperature alarm message is generated for the corresponding module in the second loop.

8. The intelligent control method based on nuclear power plant temperature according to claim 2, characterized in that, The step of generating the power mismatch change rate based on the electrical power information and the nuclear power information includes: The nuclear power corresponding to the first loop is generated based on the nuclear power information, and the electric power corresponding to the second loop is generated based on the electric power information; Power mismatch information is generated between the nuclear power corresponding to the first loop and the electrical power corresponding to the second loop, and the power mismatch information is differentiated to obtain the power mismatch change rate.

9. The intelligent control method based on nuclear power plant temperature according to claim 8, characterized in that, The electrical power information includes multiple second electrical powers, and the nuclear power information includes multiple first nuclear powers; The step of generating the nuclear power corresponding to the first loop based on the nuclear power information, and generating the electrical power corresponding to the second loop based on the electrical power information, includes: From the multiple first core powers, extract the first core power with the maximum value, and use the first core power with the maximum value as the core power corresponding to the first loop; Extract the electrical power corresponding to the two circuits from the plurality of second electrical power sources.

10. The intelligent control method based on nuclear power plant temperature according to claim 9, characterized in that, The method further includes: The average nuclear power of the first cores is obtained by calculating the power of multiple first cores. Generate the nuclear power deviation between the average nuclear power and each of the first nuclear powers; If any of the nuclear power deviations is greater than or equal to a preset power deviation threshold, a third temperature alarm message is generated for the monitoring module corresponding to the reactor of the nuclear power plant.

11. An electronic device, characterized in that, The device includes a memory and a processor, the memory storing a computer program, characterized in that the processor executes the computer program to implement the steps of the intelligent control method based on the temperature of a nuclear power plant as described in any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, causes the processor to perform the steps of the intelligent control method based on nuclear power plant temperature as described in any one of claims 1 to 10.

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