Reactor protection system response time test method and system

Abstract

The invention relates to a reactor protection system response time test method and system, and the method comprises the steps: obtaining equipment response time data and multiple groups of transmission path data in a reactor protection system; and selecting one group of transmission path data from the multiple groups of transmission path data to calculate the optimal response time of each transmission path together with the equipment response time data, and taking the optimal response time as a standard value for subsequent judgment. According to the method, the test efficiency and accuracy are remarkably improved, the test cost and the human error risk are reduced, meanwhile, potential problems in the system response time are effectively recognized and optimized, and the safety and reliability of the reactor protection system in actual operation are ensured.

Description

Technical Field

[0001] The invention relates to the field of nuclear engineering and safety technology, and in particular to a reactor protection system response time test method and system. Background Art

[0002] The response time verification of the reactor protection system is an important part of ensuring the safe operation of nuclear power plants. The verification process aims to test the response time of the entire system from the sensor input signal to the drive device execution action, so as to confirm whether the system can respond effectively within the specified time and take measures to prevent potential accidents. In actual operation, if conditions permit, it is usually preferred to complete the response time test of the entire system through a single test, so that the overall performance of the system can be more comprehensively evaluated. However, due to the complexity and large scale of the reactor protection system, sometimes a single test may not cover the entire system. At this time, it is necessary to split the system into multiple independent parts, measure their response times separately, and ensure that the sum of the response times of all parts meets the requirements of the entire system. In the method of measuring the system response time in segments, the total response time is usually divided into multiple stages, such as T1, T2, T3, T4, T5, T6, etc. Among them, the T2 response time specifically refers to the response time of the analog and digital parts of the reactor protection system, including key links such as signal acquisition loop, CPU operation, transmission time between cabinets, and output loop. Currently, a nuclear power plant uses a full-channel test scheme in the T2 response time test, that is, testing all channels involved in the reactor protection system one by one to verify the response time of each channel from the input end to the output end. However, this full-channel test scheme has some problems:

[0003] In the T2 response time test of the reactor protection system, the use of a full-channel test scheme led to a series of problems: since a single unit involves nearly 400 channels, it takes about 17 days to complete the test of all channels, which not only seriously interferes with the normal operation plan of the nuclear power plant, but also greatly increases the test cost; at the same time, the frequent terminal block disassembly and wiring work during the test not only has a large amount of operation and high repetition, but also significantly increases the risk of human error, which will affect the accuracy of the test results and may even trigger a safety accident; in addition, due to the large number of test channels and the temporary changes or configurations of the system that may be involved in the process, this further increases the risk of false operation of safety equipment, posing a potential threat to the safe and stable operation of nuclear power plants that cannot be ignored. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve the problem of increased risk of human error and risk of malfunction of safety equipment brought about by the full-channel test scheme, and to provide a reactor protection system response time test method and system.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a reactor protection system response time test method, the steps of the method include:

[0006] Acquire equipment response time data and multiple sets of transmission path data in a reactor protection system; the equipment response time data includes analog part response time data and / or digital part response time data;

[0007] Selecting a set of transmission path data from the plurality of sets of transmission path data; wherein the set of transmission path data includes a plurality of transmission path data;

[0008] A standard response time for each transmission path data is determined based on the device response time data and the set of transmission path data; the standard response time includes an optimal response time as a system response time performance benchmark.

[0009] In one embodiment, the method further comprises:

[0010] Obtaining the actual response time of each transmission path data;

[0011] Calculating a correlation coefficient according to the actual response time of each transmission path data and the optimal response time of each transmission path data;

[0012] Determining whether the correlation coefficient meets a preset condition;

[0013] If not, another set of transmission path data is used to calculate the correlation coefficient with the actual response time corresponding to the set of transmission paths, until a set of transmission path data is found, the calculated correlation coefficient of which satisfies the preset condition.

[0014] In one embodiment, the device response time data includes the device cycle time and the device processing single signal time; the standard response time also includes the maximum response time and the minimum response time;

[0015] The step of obtaining the actual response time of each transmission path data includes:

[0016] Determine a maximum response time of each path and a minimum response time of each path according to the device cycle time, the device processing time of a single signal and the set of transmission path data;

[0017] It is determined whether the actual response time of the data of each transmission path is between the maximum response time of the corresponding path and the minimum response time of the corresponding path. If so, the next step is executed.

[0018] In one embodiment, determining the standard response time data of each path according to the device response time data and the set of transmission path data comprises:

[0019] The device cycle time, the device processing time for a single signal and the set of transmission path data are brought into a preset function to determine the optimal response time for each path.

[0020] In one embodiment, determining the maximum response time of each path and the minimum response time of each path according to the device cycle time, the device processing time of a single signal and the set of transmission path data comprises:

[0021] Determine the maximum response time and the minimum response time of the device according to the device cycle time and the time for the device to process a single signal;

[0022] The maximum response time of each path and the minimum response time of each path are determined according to the maximum response time of the device, the minimum response time of the device and the set of transmission path data.

[0023] In an embodiment, determining the maximum response time and the minimum response time of the device according to the device cycle time and the device processing single signal time includes:

[0024] Determining whether the device cycle time is greater than a preset cycle time;

[0025] If it is greater than, the maximum response time of the device is the device cycle time plus the time it takes the device to process a single signal; the minimum response time of the device is the time it takes the device to process a single signal;

[0026] If it is less than, determining whether the single signal processing time of the device is greater than a preset processing time;

[0027] If it is greater than, the maximum response time of the device is equal to the device processing a single signal; the minimum response time of the device is equal to the device processing a single signal;

[0028] If it is less than, the maximum response time and the minimum response time of the device are 0.

[0029] In one embodiment, the preset function is:

[0030]

[0031] Among them, Z is the optimal time on a single transmission path, Tp is the time for the device to process a single signal, Tc is the device cycle time, i is a single device on a single set of transmission path data, and n is the total number of devices on a single transmission path.

[0032] In one implementation, calculating the correlation coefficient according to the actual response time of each transmission path data and the optimal response time includes:

[0033] Calculating a covariance coefficient according to the actual response time of each transmission path data and the optimal response time;

[0034] The correlation coefficient is calculated according to the covariance coefficient, the actual response time of each transmission path data and the optimal response time.

[0035] In one embodiment, the method further comprises:

[0036] If satisfied, obtain the historical response time of each transmission path data;

[0037] Calculate a preset numerical confidence zone for each path based on the historical response time of each transmission path data;

[0038] It is determined whether the actual response time of each transmission path data is within a preset value confidence zone. If so, the test is passed.

[0039] The present application also provides a reactor protection system response time test system, comprising a processor and a memory storing a computer program, wherein the processor implements the steps of any of the above-mentioned reactor protection system response time test methods when executing the computer program.

[0040] The implementation of the present invention has the following beneficial effects: by obtaining the equipment response time data and multiple sets of transmission path data in the reactor protection system, a set of transmission path data and equipment response time data are selected from the multiple sets of transmission path data to calculate the optimal response time of each transmission path as the standard value for subsequent judgment. The test efficiency and accuracy are significantly improved, the test cost and the risk of human error are reduced, and the potential problems in the system response time are effectively identified and optimized, ensuring the safety and reliability of the reactor protection system in actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only 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 creative work.

[0042] Figure 1 It is a schematic diagram of the reactor protection system test device of the present application;

[0043] Figure 2 It is a flow chart of an embodiment of a reactor protection system response time test method of the present application;

[0044] Figure 3This is a schematic diagram of a path of a reactor protection system response time experimental method of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all 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.

[0046] Figure 1 The schematic diagram of the reactor protection system test device is as follows: Figure 1As shown, the test process for all channels of the reactor protection system is shown one by one, aiming to verify the response time of each channel from the input end to the output end of the reactor protection system cabinet (RPC). The specific working process is: first, the simulator will generate a series of analog signals, including current signals and voltage signals, etc. These signals are used to simulate the operating state of the reactor under different working conditions, and are input into the waveform recorder 20 through a specific line. The waveform recorder 20 is responsible for receiving the jump path input of these analog signals and recording and saving their waveforms for subsequent analysis and processing. Then, the reactor protection system cabinet receives analog current signals from the waveform recorder 20 or other sensors, which reflect the actual operating state of the reactor, such as temperature, pressure, flow, etc. The processor in the cabinet will perform threshold judgment on these signals. If the signal exceeds the preset threshold, the processor will perform logical operations to determine whether the protection action needs to be triggered. If necessary, the reactor protection system will send a signal to the jump coil 10 to make it act immediately, such as disconnecting the circuit or releasing energy, to achieve rapid protection of the reactor. At the same time, the reactor protection system cabinet will also output control signals to other related systems to indicate the current state of the reactor and trigger corresponding protection measures or alarm responses. Finally, the waveform recorder 20 will save the recorded waveform in a specific file format for subsequent analysis of the response characteristics of the reactor under different working conditions, and perform response time tests during the test phase to evaluate the response speed and reliability of the reactor protection system. The test scheme adopts a full-channel test method, but faces a series of challenges: a single unit involves nearly 400 channels. According to current operating experience, the entire test process takes about 17 days; in addition, the terminal block needs to be frequently disconnected and wired during the test, which not only increases the workload, but also increases the risk of human error; at the same time, due to the large number of test channels, it may also bring the risk of false operation of safety equipment. In order to more effectively measure the system response time, the segmented measurement method is adopted, that is, the total response time is divided into multiple stages, such as T1, T2, T3, T4, T5, T6, etc. Among them, T2 response time specifically refers to the response time of the analog and digital parts in the reactor protection system, covering key links such as signal acquisition circuit, CPU operation, transmission time between cabinets and output circuit. Figure 1 The RPC in it refers to the reactor protection system cabinet, and CHⅠ-Ⅳ refers to channels 1-4.

[0047] Aiming at the technical problems existing in the background technology, the full-channel test scheme brings about the increased risk of human error and the risk of malfunction of safety equipment. The present invention provides a reactor protection system response time test method, which obtains the equipment response time data and multiple groups of transmission path data in the reactor protection system, and calculates the optimal response time of each transmission path based on these data as a benchmark for subsequent judgment of the system response time performance, thereby solving the problems of high risk of human error and high risk of malfunction of safety equipment in the full-channel test scheme.

[0048] Figure 2 It is a flow chart of an embodiment of a reactor protection system response time test method of the present application.

[0049] like Figure 2 As shown, the steps of the reactor protection system response time test method include:

[0050] S1: Acquire equipment response time data and multiple sets of transmission path data in the reactor protection system; the response time data includes analog part response time data and / or digital part response time data.

[0051] Specifically, the response time characteristics of a single device are shown in the following table. These parameters can be obtained from the device supplier or the device factory test report, wherein the maximum response time and the minimum response time are calculated by the present invention.

[0052]

[0053] Among them, in the table, SAA1 is analog signal acquisition and processing, SNV1 is signal multiplier, SAI 1 is analog signal processing, SVE2 is microprocessor, SL22 is signal communication, SLM2 is safety-level network link, SDO1 is digital signal output, SRB1 is signal relay, STT1 is temperature sensor acquisition module, SDI 1 is digital acquisition board, and SGPIO1 is a specific board for processing source range neutron flux.

[0054] S2: Selecting a group of transmission path data from multiple groups of transmission path data; wherein the group of transmission path data includes multiple transmission path data.

[0055] like Figure 3As shown, specifically, when selecting the transmission path data, it is necessary to select one group from multiple groups of data, where each group of transmission path data contains multiple specific transmission paths. It is worth noting that since the transmission of a single signal in the reactor protection system usually does not cover all devices, for example, some signals may only be configured with 3 sensors, which will cause one of the 4 reactor protection cabinets to be unable to be tested. Therefore, in order to ensure that the selected signal channel can fully cover and traverse all equipment in the reactor protection system, there will be multiple groups of transmission path data that meet this situation, and one group can be selected from them. For example, a group of transmission path data is randomly selected, which includes 6 specific transmission paths.

[0056] Path 1: Select a standard analog signal with 4 channels (ie, the output signal is 4-20mA) to represent the transmission path of most continuous signals.

[0057] Path 2: Select a signal that processes the thermal resistor element to test the transmission path that includes STT1 (thermal resistor acquisition and processing board) separately.

[0058] Path 3: A signal that processes the rotation speed is selected to test the transmission path including SDI 1 (reactor coolant pump rotation speed measurement board) alone.

[0059] Path 4: Select a signal that processes the source range neutron flux to test the transmission path containing SGPIO1 (source range signal amplifier element) alone.

[0060] Path 5: Select a signal that processes the neutron flux in the intermediate range or power range to test the transmission path of the APU module directly collecting the signal (that is, without being processed by the PIPS cabinet).

[0061] Path 6: A standard logic quantity (ie, digital quantity) signal with 4 channels is selected to represent the transmission path of most logic signals.

[0062] The 6 transmission paths are as follows:

[0063] Path 1: SAA1→SNV1→SAI 1→APU(SVE2)→SLM2→ALU(SVE2)→SDO1→SRB1.

[0064] Path 2: STT1→SNV1→SAI 1→APU(SVE2)→SLM2→ALU(SVE2)→SDO1→SRB1. STT1 is the temperature sensor acquisition module.

[0065] Path 3: SD I 1 → APU (SVE2) → SLM2 → ALU (SVE2) → SDO1 → SRB1. Since the speed sensor itself is a discrete grating signal, it is collected using SD I 1. SD I 1 is a digital acquisition board.

[0066] Path 4: SGPIO1→APU(SVE2)→SLM2→ALU(SVE2)→SDO1→SRB1. SGPIO1 is a specific board that handles the source range neutron flux.

[0067] Path 5: SAI 1→APU(SVE2)→SLM2→ALU(SVE2)→SDO1→SRB1.

[0068] Path 6: SDI1→SVE2→SLM2→ALU→SDO1→SRB1. SDI1 is the same as the speed acquisition board.

[0069] In the above path, SAA1 is analog signal acquisition and processing, SNV1 is signal multiplier, SAI 1 is analog signal processing, SVE2 is microprocessor, SL22 is signal communication, SLM2 is safety-level network link, SDO1 is digital signal output, SRB1 is signal relay, STT1 is temperature sensor acquisition module, SDI 1 is digital acquisition board, and SGPIO1 is a specific board for processing source range neutron flux.

[0070] S3: Determine a standard response time for each transmission path data based on the device response time data and a set of transmission path data; the standard response time includes an optimal response time as a benchmark for system response time performance.

[0071] Furthermore, determining the standard response time data of each path based on the device response time data and a set of transmission path data includes: bringing the device cycle time, the device processing time of a single signal and a set of transmission path data into a preset function to determine the optimal response time of each path.

[0072] Specifically, the preset function is:

[0073]

[0074] Among them, Z is the optimal time on a single transmission path, Tp is the time for the device to process a single signal, Tc is the device cycle time, i is a single device on a single set of transmission path data, and n is the total number of devices on a single transmission path.

[0075] Specifically, since the response time of a signal is often not exactly at the extreme of the minimum or maximum response time when traversing a long path, but rather presents a certain distribution characteristic. Since the probability of each device processing a signal is equal, the test results usually conform to the statistical characteristics of a normal distribution. In order to accurately assess the confidence level of each test result, the standard response time of each transmission path data is determined, and the calculation is performed based on the device response time data and a selected set of transmission path data. The standard response time not only includes the optimal response time as a benchmark for the system response time performance, but also reflects the inherent characteristics of the path. When determining the standard response time for each path, the device cycle time, the time to process a single signal, and the specific data of the transmission path are substituted into a preset function to calculate the optimal response time for each path. This function comprehensively considers factors such as the processing time and cycle time of each device on the path, as well as the total number of devices.

[0076] In another implementation, the average response time (Tavg) of the device can also be calculated first. It is based on the equal probability of the device processing the signal within a cycle period, and the specific formula is Tavg = Tc / 2 + Tp. However, the actual response time (Tact) will fluctuate between the maximum and minimum response times, so the deviation from the average response time is between -Tc / 2 and Tc / 2. Next, the average response time of each path is calculated, which is the sum of the average response times of all devices on the signal path. In order to obtain Toe (best estimated response time), the error between the average response time of each device and the actual response time is taken into account, and the RMS (root mean square method) is used to process the joint error of the response time of these devices. Therefore, Toe (best estimated response time) is the root mean square value of the sum of the average response times of all devices on the signal path plus the square root of half the cycle time of these devices. In this way, the response time performance of the transmission path can be evaluated more accurately.

[0077] In order to accurately determine the maximum and minimum response time of each transmission path, it is necessary to rely on the device response time data to calculate the maximum response time and minimum response time of the device. The device response time data includes the device cycle time and the device processing time for a single signal; the standard response time also includes the maximum response time and the minimum response time; after obtaining the actual response time of each transmission path data, it includes: determining the maximum response time and the minimum response time of each path based on the device cycle time, the device processing time for a single signal, and a set of transmission path data; obtaining the actual response time of each transmission path data. Determine whether the actual response time of each transmission path data is between the maximum response time of the corresponding path and the minimum response time of the corresponding path. If so, execute the next step.

[0078] Furthermore, determining the maximum response time of each path and the minimum response time of each path based on the device cycle time, the device processing time for a single signal and a set of transmission path data includes: determining the maximum response time of the device and the minimum response time of the device based on the device cycle time and the device processing time for a single signal; determining the maximum response time of each path and the minimum response time of each path based on the maximum response time of the device, the minimum response time of the device and a set of transmission path data.

[0079] Furthermore, determining the maximum response time and the minimum response time of the device based on the device cycle time and the device processing time of a single signal includes: judging whether the device cycle time is greater than the preset cycle time; if greater, the maximum response time of the device is the device cycle time plus the device processing time of a single signal; the minimum response time of the device is the device processing time of a single signal; if less, judging whether the device processing time of a single signal is greater than the preset processing time; if greater, the maximum response time of the device is equal to the device processing a single signal; the minimum response time of the device is equal to the device processing a single signal; if less, the maximum response time and the minimum response time of the device are 0.

[0080] Specifically, as shown in the following table, the test result is the actual response time of the path, and the best response time is the calculated best response time.

[0081]

[0082]

[0083] The correlation coefficient is calculated according to the actual response time of each transmission path data and the optimal response time of each transmission path data.

[0084] Further, calculating the correlation coefficient according to the actual response time and the optimal response time of each transmission path data includes: calculating the covariance coefficient according to the actual response time and the optimal response time of each transmission path data; calculating the correlation coefficient according to the covariance coefficient, the actual response time and the optimal response time of each transmission path data. Determining whether the correlation coefficient meets a preset condition.

[0085] If not, another set of transmission path data is used to calculate the correlation coefficient with the actual response time corresponding to the set of transmission paths, until a set of transmission path data is found, the calculated correlation coefficient of which satisfies the preset condition.

[0086] If satisfied, obtain the historical response time of each transmission path data; calculate the preset numerical confidence zone of each path based on the historical response time of each transmission path data; determine whether the actual response time of each transmission path data is within the preset numerical confidence zone, if so, the test is passed.

[0087] Specifically, the covariance coefficient was first calculated based on the actual response time and the optimal response time of each transmission path, which reflects the degree of linear correlation between the two. Subsequently, the sample correlation coefficient was calculated using this covariance coefficient, the actual response time of each path, and the optimal response time through a specific mathematical formula. This correlation coefficient is a value between -1 and 1, which is used to quantify the strength of the linear correlation between two variables. The covariance between the actual test results of the 6 transmission paths and the optimal estimated response time is 39806.93, and the sample correlation coefficient is 0.9990. This means that there is an extremely strong linear correlation between the actual response time and the optimal estimated response time, and the optimal response time is relatively more conservative within the upper and lower fluctuation range of the actual response time. Overall, the optimal response time is in good agreement with the actual response time.

[0088] Specifically, during the evaluation of the response time performance of the transmission path, if the correlation coefficient calculated between the current group of transmission path data and the actual response time does not meet the preset conditions, an iterative method will be adopted. Specifically, another group of transmission path data is selected, and the optimal response time is recalculated for the group of data. Subsequently, the optimal response time of this group of data and its actual response time are used to calculate a new correlation coefficient. This process will continue until a group of transmission path data is found, and the correlation coefficient calculated by the group of data meets the preset conditions. In this way, it can be ensured that there is a close correlation between the selected data group and the actual response time, thereby providing a more reliable basis for subsequent evaluation work. Once the correlation coefficient meets the requirements, the historical response time data of each transmission path will be further obtained. These data can be derived from the historical test records of the power plant, or obtained through separate tests specifically for these 6 paths. Subsequently, these historical response time data will be used to calculate a confidence interval of a preset value for each path. This confidence interval is usually based on a large amount of historical data and statistical analysis, and it reflects the expectation of the fluctuation range of the actual response time. Next, it is determined whether the actual response time of each transmission path falls within its corresponding preset value confidence interval. The preset value depends on the actual situation. In this scheme, the preset value confidence interval is a 95% confidence interval. If the actual response time is within this interval, it can be considered that the test result of the path is qualified, that is, its response time performance meets expectations.

[0089] Through the above analysis, one of the test plans can be formulated according to the following steps: First, collect the response time data of each device from the equipment supplier or factory test report. In particular, for the specific equipment used for special signals, it is necessary to collect its cycle time and the time to process a single signal, and calculate the maximum, minimum and average response time based on this. Secondly, according to the functions implemented by the reactor protection system, select a set of signals that can traverse all devices. The selection of these signals should follow certain principles to ensure that all devices in the system can be fully covered and tested. Next, calculate the theoretical minimum and maximum response times, and use these values ​​as the boundaries of the acceptance criteria. If the actual test results exceed these boundaries, the test results are directly judged to be unqualified. Then, calculate the best estimated response time and compare it with the historical test data to verify the accuracy of the calculated results. Finally, process the test data according to the 95% confidence interval. If the test data meets the requirements, no further processing is required. But if the data does not meet the requirements, it is necessary to test those signals that do not meet the requirements separately to find and locate the unqualified equipment.

[0090] The present application also provides a reactor protection system response time test system, comprising a processor and a memory storing a computer program, wherein the processor implements the steps of any of the above-mentioned reactor protection system response time test methods when executing the computer program.

[0091] By obtaining the equipment response time data and multiple sets of transmission path data in the reactor protection system, a set of transmission path data and equipment response time data are selected from the multiple sets of transmission path data to calculate the optimal response time of each transmission path as the standard value for subsequent judgment. This significantly improves the test efficiency and accuracy, reduces the test cost and the risk of human error, and effectively identifies and optimizes potential problems in the system response time, ensuring the safety and reliability of the reactor protection system in actual operation.

[0092] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. A reactor protection system response time test method, characterized in that: The steps of the method include: Acquire equipment response time data and multiple sets of transmission path data of a reactor protection system; the equipment response time data includes analog part response time data and / or digital part response time data; Selecting a set of transmission path data from the plurality of sets of transmission path data; wherein the set of transmission path data includes a plurality of transmission path data; A standard response time for each transmission path data is determined based on the device response time data and the set of transmission path data; the standard response time includes an optimal response time as a system response time performance benchmark.

2. The reactor protection system response time test method according to claim 1, characterized in that: The method further comprises the steps of: Obtaining the actual response time of each transmission path data; Calculating a correlation coefficient according to the actual response time of each transmission path data and the optimal response time of each transmission path data; Determining whether the correlation coefficient meets a preset condition; If not, another set of transmission path data and the actual response time corresponding to the set of transmission paths are used to calculate the correlation coefficient until the correlation coefficient meets the preset condition.

3. The reactor protection system response time test method according to claim 2, characterized in that: The device response time data includes the device cycle time and the time for the device to process a single signal; the standard response time also includes the maximum response time and the minimum response time; The step of obtaining the actual response time of each transmission path data includes: Determine a maximum response time of each path and a minimum response time of each path according to the device cycle time, the device processing time of a single signal and the set of transmission path data; It is determined whether the actual response time of the data of each transmission path is between the maximum response time of the corresponding path and the minimum response time of the corresponding path. If so, the next step is executed.

4. The reactor protection system response time test method according to claim 3, characterized in that: Determining the standard response time data of each path according to the device response time data and the set of transmission path data includes: The device cycle time, the device processing time for a single signal and the set of transmission path data are brought into a preset function to determine the optimal response time for each path.

5. The reactor protection system response time test method according to claim 4, characterized in that: Determining the maximum response time of each path and the minimum response time of each path according to the device cycle time, the device processing time of a single signal and the set of transmission path data comprises: Determine the maximum response time and the minimum response time of the device according to the device cycle time and the time for the device to process a single signal; The maximum response time of each path and the minimum response time of each path are determined according to the maximum response time of the device, the minimum response time of the device and the set of transmission path data.

6. The reactor protection system response time test method according to claim 5, characterized in that: Determining the maximum response time and the minimum response time of the device according to the device cycle time and the time for the device to process a single signal comprises: Determining whether the device cycle time is greater than a preset cycle time; If it is greater than, the maximum response time of the device is the device cycle time plus the time it takes the device to process a single signal; the minimum response time of the device is the time it takes the device to process a single signal; If it is less than, determining whether the single signal processing time of the device is greater than a preset processing time; If it is greater than, the maximum response time of the device is equal to the device processing a single signal; the minimum response time of the device is equal to the device processing a single signal; If it is less than, the maximum response time and the minimum response time of the device are 0.

7. The reactor protection system response time test method according to claim 6, characterized in that: The preset function is: Among them, Z is the optimal time on a single transmission path, Tp is the time for the device to process a single signal, Tc is the device cycle time, i is a single device on a single set of transmission path data, and n is the total number of devices on a single transmission path.

8. The reactor protection system response time test method according to claim 7, characterized in that: The calculating of the correlation coefficient according to the actual response time of each transmission path data and the optimal response time comprises: Calculating a covariance coefficient according to the actual response time of each transmission path data and the optimal response time; The correlation coefficient is calculated according to the covariance coefficient, the actual response time of each transmission path data and the optimal response time.

9. The reactor protection system response time test method according to claim 8, characterized in that: The method further comprises the steps of: If not satisfied, obtaining the historical response time of each transmission path data; Calculate a preset numerical confidence zone for each path based on the historical response time of each transmission path data; It is determined whether the actual response time of each transmission path data is within a preset value confidence zone. If so, the test is passed.

10. A reactor protection system response time test system, comprising a processor and a memory storing a computer program, characterized in that: The processor implements the steps of the reactor protection system response time test method according to any one of claims 1 to 9 when executing the computer program.

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