WO2023216663A1 - 压水堆控制棒棒位判定方法、装置以及棒位测量系统 - Google Patents

压水堆控制棒棒位判定方法、装置以及棒位测量系统 Download PDF

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Publication number
WO2023216663A1
WO2023216663A1 PCT/CN2023/075790 CN2023075790W WO2023216663A1 WO 2023216663 A1 WO2023216663 A1 WO 2023216663A1 CN 2023075790 W CN2023075790 W CN 2023075790W WO 2023216663 A1 WO2023216663 A1 WO 2023216663A1
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WIPO (PCT)
Prior art keywords
rod position
rod
gray code
code bit
voltage
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PCT/CN2023/075790
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English (en)
French (fr)
Inventor
方金土
李艺
董懿伟
马一鸣
任洁
齐箫
胡劲
王浩钧
Original Assignee
中核核电运行管理有限公司
秦山核电有限公司
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Publication of WO2023216663A1 publication Critical patent/WO2023216663A1/zh

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/12—Means for moving control elements to desired position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the invention belongs to the technical field of nuclear power, and specifically relates to a method and device for determining the position of a pressurized water reactor control rod and a rod position measurement system.
  • the pressurized water reactor rod control system controls the position of the control rod containing the neutron absorber in the reactor core to control the reactivity, ensuring that the reactor operates safely and stably under set conditions.
  • the rod position measurement system provides all the information of the reactor.
  • the real-time rod position indication of the control rod group is used for real-time monitoring by the operator, and provides rod position measurement data of the entire core and the entire fuel cycle for core operation tracking, core safety calculation and fuel management.
  • the Gray code-based rod position measurement technology commonly used in the industry uses multi-bit Gray code signal setting results to achieve discontinuous instructions at intervals of 5-8 mechanical steps.
  • the Gray code-based continuous rod position measurement technology for the entire stroke of the pressurized water reactor determines the rod position interval where the control rod is located (each rod position interval includes Multiple mechanical steps, such as 5-8 mechanical steps).
  • each rod position interval includes Multiple mechanical steps, such as 5-8 mechanical steps).
  • the rod control system cannot provide a "step in place" signal interface for each mechanical step during the movement of the control rod, which seriously affects the monitoring and operation and maintenance of the pressurized water reactor core. Therefore, how to accurately measure the real-time rod position of the control rod has become an urgent problem to be solved.
  • a method, device and rod position measurement system for determining the position of a pressurized water reactor control rod are provided.
  • a method for determining the position of a pressurized water reactor control rod including:
  • Step 100 According to the currently obtained Gray code signal setting result and the Gray code signal setting result and The corresponding relationship between rod position intervals determines the rod position interval to which the control rod currently belongs;
  • Step 101 determine multiple rod position determination conditions corresponding to the rod position interval to which the control rod currently belongs.
  • Each rod position judgment condition corresponds to a rod position, and each rod position judgment condition includes the voltage value interval of the Gray code position signal;
  • Step 102 Determine whether the currently obtained voltage value of each Gray code bit signal matches the determined multiple rod position determination conditions
  • Step 103 Use the rod position corresponding to the rod position determination condition that matches the voltage value of the currently acquired Gray code bit signal as the current measurement rod position of the control rod.
  • the method further includes:
  • Step 200 During the process of the control rod stepping from the starting rod position to the ending rod position, the rod position detector detects each Gray code bit signal output by the control rod and conducts voltage sampling at a preset frequency to obtain multiple data. Set, a data set is obtained for each sampling. The data set for each sampling includes the voltage values of each Gray code bit signal sampled at that time. Each data set is arranged in the sampling order;
  • Step 201 Determine the voltage calculation value of the target Gray code bit signal corresponding to each rod position from the starting rod position to the ending rod position according to the number of rod positions of the control rod and the multiple data sets;
  • Step 202 for each rod position, determine the calculation parameters of the rod position based on the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position;
  • Step 203 Determine multiple rod position determination conditions corresponding to each rod position interval based on the calculation parameters corresponding to each rod position and the rod position interval.
  • step 201 also includes:
  • Step 2010, determine the data set between each two adjacent rod positions according to the number of rod positions of the control rod from the starting rod position to the ending rod position and the sampling order of the multiple data sets;
  • Step 2011, for each rod position determine the calculation set from the multiple data sets between the rod position and the rod positions before and after the rod position, and determine the electrical value of the target Gray code bit signal of the rod position based on the calculation set.
  • Voltage calculation values the calculation set includes voltage values of multiple target Gray code bit signals, and differences between the voltage values of the multiple target Gray code bit signals meet preset conditions.
  • step 201 also includes:
  • Step 2012 For each rod position, use the Gray code position signal with the largest change in voltage value from the rod position to the next rod position as the target Gray code position signal.
  • a device for determining the position of a pressurized water reactor control rod includes:
  • the first determination module is used to determine the rod position interval to which the control rod currently belongs based on the currently obtained Gray code signal setting result and the corresponding relationship between the Gray code signal setting result and the rod position interval;
  • the second determination module is used to determine multiple rod position determination conditions corresponding to the rod position interval to which the control rod currently belongs.
  • Each rod position judgment condition corresponds to a rod position.
  • Each rod position judgment condition includes the voltage value interval of the Gray code position signal. ;
  • a judgment module used to judge whether the voltage value of each Gray code bit signal currently acquired matches the determined multiple rod position judgment conditions
  • the third determination module is configured to use the rod position corresponding to the rod position determination condition that matches the voltage value of the currently acquired Gray code position signal as the current measurement rod position of the control rod.
  • the device further includes:
  • the sampling module is used to sample the voltage of each Gray code bit signal output by the rod position detector at a preset frequency during the process of the control rod stepping from the starting rod position to the ending rod position, and obtain multiple A data set is obtained for each sampling.
  • the data set for each sampling includes the voltage value of each Gray code bit signal sampled at that time.
  • Each data set is arranged in the sampling order;
  • the fourth determination module is used to determine the voltage calculation of the target Gray code bit signal corresponding to each rod position from the starting rod position to the ending rod position based on the number of rod positions of the control rod and the plurality of data sets. value;
  • the fifth determination module is used for each rod position, determining the rod position based on the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position. calculation parameters;
  • the sixth determination module is used to determine multiple rod position determination conditions corresponding to each rod position interval based on the calculation parameters and rod position intervals corresponding to each rod position.
  • the fourth determination module also includes:
  • the first determination sub-module is used to determine the data set between each two adjacent rod positions based on the number of rod positions of the control rod from the starting rod position to the ending rod position and the sampling order of the multiple data sets. ;
  • the second determination sub-module is used to determine, for each rod position, a calculation set from multiple data sets between the rod position and the rod positions before and after the rod position, and determine the target gray value of the rod position based on the calculation set.
  • the voltage calculation value of the code bit signal, the calculation set includes the voltage values of multiple target Gray code bit signals, and the difference between the voltage values of the multiple target Gray code bit signals meets the preset condition.
  • the fourth determination module further includes:
  • the third determination sub-module is used for each rod position, using the Gray code position signal with the largest change in voltage value from the rod position to the next rod position as the target Gray code position signal.
  • a device for determining the position of a pressurized water reactor control rod includes:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the above method.
  • a non-volatile computer-readable storage medium with computer program instructions stored thereon.
  • the computer program instructions implement the above method when executed by a processor. Law.
  • a pressurized water reactor rod position measurement system includes the above-mentioned pressurized water reactor control rod position determination device.
  • the rod position measurement system uses Provides real-time rod position indication for each control rod group of the reactor.
  • the method for determining the position of a pressurized water reactor control rod determines the rod position determination conditions of each rod position in the full stroke based on the signal voltage of each Gray code position of the rod position in the entire stroke, and combines the Gray code position and the corresponding The gray code position signal voltage value corresponds to the rod position.
  • each gray code position signal currently obtained in real time can be accurately positioned to each rod position through the rod position interval and rod position determination conditions, achieving fast and accurate Full-stroke rod position measurement provides operator monitoring with accurate real-time rod position information for the entire core and core operation tracking, core safety calculations and refined fuel management. It provides precise rod position for the entire core and the entire fuel cycle. Measurement data.
  • Figure 1 is a flow chart of a method for determining the position of a pressurized water reactor control rod according to an exemplary embodiment.
  • Figure 2 is a flow chart of a method for determining the position of a pressurized water reactor control rod according to an exemplary embodiment.
  • Figure 3 is a block diagram of a device for determining a control rod position of a pressurized water reactor according to an exemplary embodiment.
  • the pressurized water reactor control rod position determination method of the present disclosure can be executed by terminal equipment.
  • the terminal device may be a server or a personal computer, and the embodiment of the present disclosure does not limit the type of the terminal device.
  • the terminal equipment can be integrated into the PWR rod position measurement system, or can be independent of the PWR rod position measurement system. This disclosure does not limit the relationship between the terminal equipment and the PWR rod position measurement system.
  • Figure 1 is a flow chart of a method for determining the position of a pressurized water reactor control rod according to an exemplary embodiment. As shown in Figure 1, the method may include:
  • Step 100 Determine the rod position interval to which the control rod currently belongs based on the currently obtained Gray code signal setting result and the corresponding relationship between the Gray code signal setting result and the rod position interval.
  • the rod control system of the pressurized water reactor can control the control rod to move step by step with a fixed step length.
  • the time required for each step is set by the control program, which is about 700-800mS (milliseconds).
  • the Gray code rod position detector of the rod position measurement system continuously detects the position of the control rod and outputs the Gray code signal in real time.
  • the output Gray code signal determines the Gray code signal setting result through the Gray code signal conditioning and setting circuit, and the terminal device can obtain it in real time.
  • the adjustment result of the Gray code signal output by the rod position measurement system It should be noted that the terminal device can obtain the real-time Gray code signal setting result through a wireless communication network or a wired communication network. This disclosure does not limit the way in which the terminal device can obtain the Gray code signal setting result in real time.
  • the terminal device usually presets the corresponding relationship between different Gray code signal setting results and different rod position intervals. In this way, the terminal device can obtain the Gray code signal setting result and the corresponding relationship based on the current real-time acquisition. Determine the rod position interval to which the control rod currently belongs. For example, the terminal device can preset that the bar position range corresponding to the Gray code signal setting result 00001 is bar position 0-7, the bar position interval corresponding to the Gray code signal setting result 00011 is bar position 8-15, etc., if the terminal device currently obtains The Gray code signal setting result is 00001, then it can be determined that the rod position interval corresponding to the Gray code setting result is rod position 0-7.
  • Step 101 Determine multiple rod position determination conditions corresponding to the rod position interval to which the control rod currently belongs.
  • the bit determination condition corresponds to one rod bit, and each rod position judgment condition includes the voltage value interval of the Gray code bit signal.
  • each rod position determination condition can include Gray The voltage value range of the code position signal
  • each rod position determination condition can correspond to one rod position.
  • Table 1 shows an example of multiple rod position determination conditions corresponding to the rod position interval. As shown in Table 1, the rod position interval rod positions 0-7 can correspond to 7 rod position determination conditions, wherein the rod position judgment conditions can include The voltage value interval of a certain Gray code bit signal.
  • the rod position determination condition corresponding to rod position 0 can be that the voltage value of the Gray code A bit signal (an example of a Gray code bit signal) is not greater than 4 (an example of a voltage value interval);
  • the rod position determination condition can also include multiple different voltage value intervals of Gray code bit signals.
  • the rod position judgment condition corresponding to rod position 4 can be that the Gray code bit A signal voltage value is greater than 7, and the Gray code bit B signal voltage The value is not greater than 0.
  • Step 102 Determine whether the currently obtained voltage value of each Gray code bit signal matches the determined multiple rod position determination conditions
  • Step 103 Use the rod position corresponding to the rod position determination condition that matches the voltage value of the currently acquired Gray code bit signal as the current measurement rod position of the control rod.
  • the Gray code signal can be determined first
  • the rod position interval corresponding to the tuning result is rod position 0-7.
  • the rod position corresponding to the Gray code signal is rod position 3.
  • the disclosed pressurized water reactor control rod rod position determination method determines the rod position judgment conditions of each rod position in the full stroke based on the Gray code position signal voltage of each rod position in the full stroke, and combines the Gray code position and the corresponding Gray code position signal voltage value Corresponding to the rod position, each Gray code position signal currently obtained in real time can be accurately positioned to each rod position according to the rod position interval and rod position determination conditions based on the real-time signal, achieving fast and accurate full-stroke rod position measurement. It provides operator monitoring with real-time information on the entire core and accurate rod position, and provides accurate rod position measurement data on the entire core and the entire fuel cycle for core operation tracking, core safety calculations and refined fuel management.
  • Figure 2 is a flow chart of a method for determining the position of a pressurized water reactor control rod according to an exemplary embodiment. It should be noted that steps 200 to 203 may be executed before step 100 or before step 101, which is not limited in this disclosure. As shown in Figure 2, the method also includes:
  • Step 200 During the process of the control rod stepping from the starting rod position to the ending rod position, the rod position detector detects each Gray code bit signal output by the control rod and conducts voltage sampling at a preset frequency to obtain multiple data. A data set is obtained for each sampling. The data set for each sampling includes the voltage values of each Gray code bit signal sampled at that time. Each data set is arranged in the sampling order.
  • the rod control system can manipulate the control rod to move unidirectionally in one mechanical step from the starting rod position to the ending rod position, where the starting rod position and the starting rod position can be selected according to the needs of measuring the rod position.
  • the specific position of the ending rod position this disclosure does not limit the specific positions of the starting rod position and the ending rod position.
  • the starting rod position can be the zero-step rod position
  • the ending rod position can be the stack top rod position; for another example, The starting stick position is the top stick position, and the ending stick position is the zero step stick position.
  • the rod position detector detects the control rod and outputs a Gray code signal.
  • the Gray code signal includes a plurality of Gray code bit signals (for example, the Gray code signal The number may include a Gray code A-bit signal, a Gray code B-bit signal, a Gray code C-bit signal, a Gray code D-bit signal, and a Gray code E-bit signal. It should be noted that this disclosure does not limit the number of bits of the Gray code signal. ).
  • the voltage of each Gray code bit signal output by the rod position detector can be sampled at a preset frequency to obtain multiple data sets.
  • the multiple data sets can include: the first voltage sampling of each Gray code bit signal.
  • Step 201 Determine the voltage calculation value of the target Gray code bit signal corresponding to each rod position from the starting rod position to the ending rod position according to the number of rod positions of the control rod and the multiple data sets.
  • step 201 may include evenly distributing multiple data sets to each rod position in sampling order according to the number of rod position intervals between the starting rod position and the end rod position. For each rod position, The voltage value of the target Gray code signal in the data set with the largest sampling order number between the rod position and the next rod position is used as the calculated voltage value of the target Gray code position signal corresponding to the rod position.
  • step 201 may also include step 2010 and step 2011.
  • Step 2010 Determine the data set between each two adjacent rod positions based on the number of rod positions of the control rod from the starting rod position to the ending rod position and the sampling order of the multiple data sets.
  • the data sets sampled between the starting time of the starting rod position and the stopping time of the ending rod position can be selected, and the number of these data sets can be determined ( In this way, the invalid sampling data before the start of the starting rod and after the stop of the ending rod can be effectively filtered); the number of rod position intervals between the starting rod position and the ending rod position can also be determined, and the determined number of data sets and the rod position can be determined The ratio of the number of bit intervals is used as the number of data sets between two adjacent rod bits. Then, according to the number of data sets between two adjacent rod positions and the sampling of multiple selected data sets, In order, determine the data set between each two adjacent rod positions.
  • the sampling period is between rod position 0 and rod position 1.
  • the data set from sequence number 11 to sampling sequence number 16 is the data set from sampling sequence number 17 to sampling sequence number 22, and so on.
  • the ratio between the total number of sampling times and the total number of rod positions can also be used as the number of data sets between two rod positions, or the ratio between the number of samples in a certain period and the number of corresponding rod positions in that period can be used.
  • the ratio between the two rod positions is used as the number of data sets between the two rod positions, and this disclosure does not limit this.
  • Step 2011 For each rod position, determine a calculation set from multiple data sets between the rod position and the rod positions before and after the rod position, and determine the voltage of the target Gray code bit signal of the rod position based on the calculation set. Calculated values, the calculation set includes voltage values of multiple target Gray code bit signals, and differences between the voltage values of the multiple target Gray code bit signals meet preset conditions.
  • the target Gray code bit signal corresponding to each rod position can be preset in the terminal device. Then in step 2011, the target Gray code bit signal corresponding to the rod position can be determined for each rod position, and the target Gray code bit signal corresponding to the rod position can be selected.
  • the voltage value of the target Gray code bit signal with the largest sampling order number between the rod position and the previous rod position is used as the target voltage value. Select the target voltage value and the sum of the first N (N is a positive integer) of the target voltage value.
  • the voltage values of the target Gray code bit signals in the last N data sets are used as the tentative sampling data group, and it is judged whether the differences between the voltage values in the tentative sampling data group meet the preset conditions (for example, each voltage value in the sampling data group The difference between voltage values is less than the difference threshold, or the variance of each voltage value in the sampling data group is less than the variance threshold, etc., or each voltage value in the sampling data group belongs to the preset threshold interval.
  • the present disclosure has a preset condition The specific form is not limited), if it is determined that the difference between each voltage value does not meet the preset conditions, select the target voltage value and the targets in the N+1 and N-1 data sets before and after the target voltage value.
  • the voltage value of the Gray code bit signal is reused as a tentative sampling data group, and it is judged whether each voltage value in the new tentative sampling data group meets the preset conditions, and so on, and the tentative sampling data group is continuously reacquired. Until it is determined that each voltage value in the acquired tentative sampling data group meets the preset conditions, the tentative sampling data group is used as a sampling data set, and the Gray code corresponding to the rod position is determined based on each voltage value in the sampling data set.
  • the voltage calculation value (for example, the average value, the weighted average value or the median value of each voltage value in the sampling data set, or any voltage value, is used as the voltage calculation value of the Gray code corresponding to the rod position. This disclosure is for sampling The specific method of calculating each voltage value in the data set to obtain the voltage calculation value is not limited).
  • Table 2 shows an example of the corresponding relationship between the data set and the rod position. As shown in Table 2, the following explanation takes rod position 6 as an example:
  • the Gray code B-bit signal with the largest voltage change can be used as the target Gray code position signal.
  • Three Gray codes can be selected between the sampling order number 110 corresponding to rod position 5 and the sampling order number 140 corresponding to rod position 7.
  • the voltage values of the code B-bit signals form a temporary sampling data group (for example, the B-bit voltage values in the data set with sampling order numbers 124-126). It is judged whether the difference between the voltage values in the temporary sampling data group is less than Difference threshold (an example of preset conditions), and the difference between voltage values can be required to be as small as possible.
  • Difference threshold an example of preset conditions
  • the sampling window can be moved in steps of one voltage value Obtain a new set of tentative sampling data sets (for example, move the data sampling window in the direction with a smaller sequence number, and take the voltage values of each B bit in the data set with sampling order numbers 123-125 as a new set of tentative sampling data sets ), continue to determine whether the difference between the voltage values in the tentative sampling data group is less than the difference threshold, and repeat the above steps until the difference between the B-bit voltage values in the acquired data set with sampling order numbers 122-124 is determined.
  • the calculation set is determined to be ⁇ 237, 237, 237 ⁇ , and the voltage calculation value of the Gray code B-bit signal at rod position 6 is determined to be 237 .
  • step 2011, for each rod position it is also possible to traverse the voltage values of the target Gray code bit signal in each data set between the rod position and the rod positions before and after the rod position, and select M (M is a positive integer) from them. Voltage value data whose differences meet the preset conditions and whose sampling order numbers are consecutively arranged are used as a sampling data set.
  • control rod Since the control rod is affected by a strong alternating driving current (generally tens of amperes) during its movement, There are certain fluctuations in the signal voltage of each Gray code bit; while the signal voltage of each Gray code bit output by the rod position detector during the stationary period of the control rod is relatively stable, and there is a strong correspondence with the position of the control rod. Therefore, this disclosure is based on The sequence of continuous voltage values with the smallest difference determines the calculated voltage value corresponding to the rod position, which can more accurately reflect the voltage signal state of the control rod at the moment when each rod position is stopped, thereby helping to more accurately determine the current rod position of the control rod.
  • Step 202 for each rod position, determine the calculation parameters of the rod position based on the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position;
  • step 202 for each rod position, the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position can be determined.
  • the calculation parameters of the rod position for example, the average or weighted average of the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position
  • this disclosure does not limit the specific process of calculating the voltage calculation values of the target Gray code position signal of the current rod position and the rod position next to the current rod position to obtain the calculation parameters).
  • Step 203 Determine multiple rod position determination conditions corresponding to each rod position interval based on the calculation parameters corresponding to each rod position and the rod position interval.
  • step 203 when it is determined that the calculation parameters corresponding to each rod position are obtained, the calculation parameters of the target Gray code bit signal of each adjacent rod position can be used to form a Gray code bit including a Gray code bit and a Gray code bit corresponding to the Gray code bit.
  • the rod position determination conditions for the voltage value range of the signal are as shown in Table 1.
  • the calculation parameter of the target Gray code signal corresponding to rod position 0 is 4, and the target corresponding to rod position 1 is The calculation parameter of the Gray code bit signal is 5, then it can be determined that the rod position determination condition for rod position 0 is: the Gray code A bit signal voltage value is not greater than 4, and the rod position judgment condition for rod position 1 is: the Gray code A bit signal voltage The value is greater than 4 and not greater than 5.
  • step 201 may also include step 2012, where step 2012 It can be performed between step 2010 and step 2011.
  • step 2012 for each rod position, the Gray code bit signal with the largest change in voltage value from the rod position to the next rod position can be used as the target Gray code bit signal. .
  • the voltage values of the Gray code C-bit signal, Gray code D-bit signal, and Gray code E-bit signal There is no change (wherein, the change of each voltage value can be expressed as the difference between the maximum value and the minimum value of each voltage value, the variance between each voltage value, the slope of the curve fitted by each voltage value, etc., the present disclosure reflects the change of each voltage value The form of The changes are small, but the voltage values ⁇ 239, 249, 258, 265, 270, 274, 276, 278, 280, 281, 282, 282, 283, 283, 287 ⁇ of the Gray code B-bit signal have the largest changes. Then the Gray code B bit signal can be used as the target Gray code bit signal of rod position 6.
  • the number of data sets between adjacent rod positions can be calculated based on the number of data sets and rod position interval data of the first sampling rod position and the second to last sampling rod position.
  • the tentative sampling will be re-obtained by moving the sampling window forward or backward in the data set between adjacent sampling order numbers. data group until the deviation of each voltage value in the tentative sampling data group meets the set allowable deviation, the tentative sampling data group is regarded as a valid sampling data group.
  • the rod position judgment logic includes the setting results of each Gray code position, the interval in which the rod position is measured, and the rod position judgment conditions. Correspondence.
  • a pressurized water reactor control rod position determination device is provided, and the device includes:
  • the first determination module is used to adjust the setting result and the Gray code signal according to the currently acquired Gray code signal.
  • the corresponding relationship between the tuning results and the rod position interval determines the rod position interval to which the control rod currently belongs;
  • the second determination module is used to determine multiple rod position determination conditions corresponding to the rod position interval to which the control rod currently belongs.
  • Each rod position judgment condition corresponds to a rod position.
  • Each rod position judgment condition includes the voltage value interval of the Gray code position signal. ;
  • a judgment module used to judge whether the voltage value of each Gray code bit signal currently acquired matches the determined multiple rod position judgment conditions
  • the third determination module is configured to use the rod position corresponding to the rod position determination condition that matches the voltage value of the currently acquired Gray code position signal as the current measurement rod position of the control rod.
  • the device further includes:
  • the sampling module is used to sample the voltage of each Gray code bit signal output by the rod position detector at a preset frequency during the process of the control rod stepping from the starting rod position to the ending rod position, and obtain multiple A data set is obtained for each sampling.
  • the data set for each sampling includes the voltage value of each Gray code bit signal sampled at that time.
  • Each data set is arranged in the sampling order;
  • the fourth determination module is used to determine the voltage calculation value of the target Gray code bit signal corresponding to each rod position from the starting rod position to the ending rod position according to the number of rod positions of the control rod and the plurality of data sets. ;
  • the fifth determination module is used for each rod position, determining the rod position based on the voltage calculation value of the target Gray code bit signal of the rod position and the voltage calculation value of the target Gray code bit signal of the next rod position. calculation parameters;
  • the sixth determination module is used to determine multiple rod position determination conditions corresponding to each rod position interval based on the calculation parameters and rod position intervals corresponding to each rod position.
  • the fourth determination module also includes:
  • the first determination sub-module is used to determine the number of rod positions from the starting rod position to the ending rod position of the control rod. and the sampling order of the plurality of data sets to determine the data set between each two adjacent rod positions;
  • the second determination sub-module is used to determine, for each rod position, a calculation set from multiple data sets between the rod position and the rod positions before and after the rod position, and determine the target gray value of the rod position based on the calculation set.
  • the voltage calculation value of the code bit signal, the calculation set includes the voltage values of multiple target Gray code bit signals, and the difference between the voltage values of the multiple target Gray code bit signals meets the preset condition.
  • the fourth determination module further includes:
  • the third determination sub-module is used for each rod position, using the Gray code position signal with the largest change in voltage value from the rod position to the next rod position as the target Gray code position signal.
  • FIG. 3 is a block diagram of a device for determining a control rod position of a pressurized water reactor according to an exemplary embodiment.
  • device 1900 may be provided as a server.
  • apparatus 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, executable by processing component 1922.
  • the application program stored in memory 1932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 1922 is configured to execute instructions to perform the above-described method.
  • Device 1900 may also include a power supply component 1926 configured to perform power management of device 1900, a wired or wireless network interface 1950 configured to connect device 1900 to a network, and an input-output (I/O) interface 1958.
  • Device 1900 may operate based on an operating system stored in memory 1932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • a non-volatile computer-readable storage medium is also provided, such as memory 1932 including computer program instructions that may be configured by a processing unit of apparatus 1900 Part 1922 is executed to complete the above method.
  • the present disclosure may be a system, method, and/or computer program product.
  • a computer program product may include a computer-readable storage medium having thereon computer-readable program instructions for causing a processor to implement aspects of the present disclosure.
  • Computer-readable storage media may be tangible devices that can retain and store instructions for use by an instruction execution device.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or Flash memory), Static Random Access Memory (SRAM), Compact Disk Read Only Memory (CD-ROM), Digital Versatile Disk (DVD), Memory Stick, Floppy Disk, Mechanical Coding Device, such as a printer with instructions stored on it.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • Flash memory Static Random Access Memory
  • CD-ROM Compact Disk Read Only Memory
  • DVD Digital Versatile Disk
  • Memory Stick
  • Computer-readable storage media are not to be construed as transient signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or through electrical wires. transmitted electrical signals.
  • Computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to various computing/processing devices, or to an external computer or external storage device over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network.
  • the network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers.
  • a network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage on a computer-readable storage medium in the respective computing/processing device .
  • Computer program instructions for performing operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or the like.
  • the computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server implement.
  • the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as an Internet service provider through the Internet). connect).
  • LAN local area network
  • WAN wide area network
  • an external computer such as an Internet service provider through the Internet. connect
  • an electronic circuit such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA)
  • the electronic circuit can Computer readable program instructions are executed to implement various aspects of the disclosure.
  • These computer-readable program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, thereby producing a machine that, when executed by the processor of the computer or other programmable data processing apparatus, , resulting in an apparatus that implements the functions/actions specified in one or more blocks in the flowchart and/or block diagram.
  • These computer-readable program instructions can also be stored in a computer-readable storage medium. These instructions cause the computer, programmable data processing device and/or other equipment to work in a specific manner. Therefore, the computer-readable medium storing the instructions includes An article of manufacture that includes instructions that implement aspects of the functions/acts specified in one or more blocks of the flowcharts and/or block diagrams.
  • Computer-readable program instructions may also be loaded into computers, other programmable data processing devices, or other equipment, such that a series of operating steps are performed on a computer, other programmable data processing apparatus, or other equipment to produce a computer-implemented process, such that a sequence of operating steps performed on a computer, other programmable data processing apparatus, or other equipment
  • the instructions implement the functions/actions specified in one or more blocks in the flowchart and/or block diagrams.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions that embody one or more elements for implementing the specified logical function(s).
  • Executable instructions may occur out of the order noted in the figures. For example, two consecutive blocks may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved.
  • each block of the block diagram and/or flowchart illustration, and combinations of blocks in the block diagram and/or flowchart illustration can be implemented by special purpose hardware-based systems that perform the specified functions or acts. , or can be implemented using a combination of specialized hardware and computer instructions.
  • a pressurized water reactor rod position measurement system is provided.
  • the pressurized water reactor rod position measurement system includes the pressurized water reactor control rod position determination device described above.
  • the rod position measurement The system is used to provide real-time rod position indication for each control rod group of the reactor.

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Abstract

一种压水堆控制棒棒位判定方法、装置、棒位测量系统以及非易失性计算机可读存储介质，属于核电技术领域。压水堆控制棒棒位判定方法根据全行程棒位的各格雷码位信号电压确定全行程每个棒位的棒位判定条件，将格雷码位以及对应的格雷码位信号电压值与棒位进行对应，能够根据实时信号，通过棒位区间和棒位判定条件将当前实时获得的各格雷码位信号准确定位到每个棒位点，实现快速、准确的全行程棒位测量，为操纵员监控提供全堆芯、准确的棒位实时信息，为堆芯运行跟踪、堆芯安全计算及燃料精细化管理提供全堆芯、全燃料循环的精确棒位测量数据。

Description

压水堆控制棒棒位判定方法、装置以及棒位测量系统 技术领域
本发明属于核电技术领域，具体涉及一种压水堆控制棒棒位判定方法、装置以及棒位测量系统。
背景技术
相关技术中，压水堆棒控系统控制含有中子吸收体的控制棒在堆芯的位置变化来控制反应性，确保反应堆在设定的条件下安全、稳定运行，棒位测量系统提供反应堆所有控制棒组的实时棒位指示，用于操纵员实时监控，并为堆芯运行跟踪、堆芯安全计算及燃料管理提供全堆芯、全燃料循环的棒位测量数据。行业普遍采用的基于格雷码棒位测量技术以多位格雷码信号整定结果来实现5-8个机械步为间隔的不连续指示。
基于格雷码的压水堆全行程棒位连续测量技术以多位格雷码信号整定结果(例如，5-6位格雷码信号整定结果)确定控制棒所在的棒位区间(每个棒位区间包括多个机械步，例如5-8个机械步)，但是，棒控系统不能提供控制棒移动过程中的每个机械步“步到位”信号接口，严重影响了压水堆堆芯监控及运维工作的准确性，因此，如何准确地测量控制棒的实时棒位成为亟待解决的问题。
发明内容
为克服相关技术中存在的问题，提供了一种压水堆控制棒棒位判定方法、装置以及棒位测量系统。
根据本公开实施例的一方面，提供一种压水堆控制棒棒位判定方法，所述方法包括：
步骤100，根据当前获取的格雷码信号整定结果以及格雷码信号整定结果与 棒位区间的对应关系，确定控制棒当前所属棒位区间；
步骤101，确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间；
步骤102，判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
步骤103，将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
在一种可能的实现方式中，所述方法还包括：
步骤200，在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列；
步骤201，根据所述控制棒的棒位数量以及所述多个数据集合，确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算值；
步骤202，针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
步骤203，根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
在一种可能的实现方式中，步骤201还包括：
步骤2010，根据所述控制棒从起始棒位至终止棒位的棒位数量以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合；
步骤2011，针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电 压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
在一种可能的实现方式中，步骤201还包括：
步骤2012，针对每个棒位，将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。
根据本公开实施例的另一方面，提供一种压水堆控制棒棒位判定装置，所述装置包括：
第一确定模块，用于根据当前获取的格雷码信号整定结果以及格雷码信号整定结果与棒位区间的对应关系，确定控制棒当前所属棒位区间；
第二确定模块，用于确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间；
判断模块，用于判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
第三确定模块，用于将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
在一种可能的实现方式中，所述装置还包括：
采样模块，用于在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列；
第四确定模块，用于根据所述控制棒的棒位数量以及所述多个数据集合，确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算 值；
第五确定模块，用于针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
第六确定模块，用于根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
在一种可能的实现方式中，第四确定模块还包括：
第一确定子模块，用于根据所述控制棒从起始棒位至终止棒位的棒位数量以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合；
第二确定子模块，用于针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
在一种可能的实现方式中，所述第四确定模块还包括：
第三确定子模块，用于针对每个棒位，将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。
根据本公开实施例的另一方面，提供一种压水堆控制棒棒位判定装置，所述装置包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行上述的方法。
根据本公开实施例的另一方面，提供一种非易失性计算机可读存储介质，其上存储有计算机程序指令，所述计算机程序指令被处理器执行时实现上述方 法。
根据本公开实施例的另一方面，提供一种压水堆棒位测量系统，所述压水堆棒位测量系统包括上述的压水堆控制棒棒位判定装置，所述棒位测量系统用于提供反应堆各控制棒组的实时棒位指示。
本公开的有益效果在于：本公开的压水堆控制棒棒位判定方法根据全行程棒位的各格雷码位信号电压确定全行程每个棒位的棒位判定条件，将格雷码位以及对应的格雷码位信号电压值与棒位进行对应，能够根据实时信号，通过棒位区间和棒位判定条件将当前实时获得的各格雷码位信号准确定位到每个棒位点，实现快速、准确的全行程棒位测量，为操纵员监控提供全堆芯、准确的棒位实时信息，为堆芯运行跟踪、堆芯安全计算及燃料精细化管理提供全堆芯、全燃料循环的精确棒位测量数据。
附图说明
图1是根据一示例性实施例示出的一种压水堆控制棒棒位判定方法的流程图。
图2是根据一示例性实施例示出的一种压水堆控制棒棒位判定方法的流程图。
图3是根据一示例性实施例示出的一种压水堆控制棒棒位判定装置的框图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。其中，在本申请实施例的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。此外，在本实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
需要说明的是，本公开的压水堆控制棒棒位判定方法可以由终端设备执行， 例如，终端设备可以为服务器或个人计算机等，本公开实施例对终端设备的类型不做限定。此外，终端设备可以集成在压水堆棒位测量系统中，也可以与压水堆棒位测量系统相互独立，本公开对终端设备与压水堆棒位测量系统之间的关系不做限定。
图1是根据一示例性实施例示出的一种压水堆控制棒棒位判定方法的流程图。如图1所示，该方法可以包括：
步骤100，根据当前获取的格雷码信号整定结果以及格雷码信号整定结果与棒位区间的对应关系，确定控制棒当前所属棒位区间。
通常来讲，压水堆的棒控系统可以控制控制棒以固定的步长作步进移动，每移动一步所需要的时间由控制程序设定，约为700-800mS(毫秒)。棒位测量系统的格雷码棒位探测器持续对控制棒位置进行检测并实时输出格雷码信号，输出的格雷码信号通过格雷码信号调理与整定电路确定格雷码信号整定结果，终端设备可以实时获取棒位测量系统输出的格雷码信号整定结果。需要说明的是，终端设备可以通过无线通信网络或有线通信网络获取实时的格雷码信号整定结果，本公开对终端设备实时获取格雷码信号整定结果的途径不做限定。
举例来讲，在步骤100中，终端设备通常预设不同的格雷码信号整定结果与不同棒位区间的对应关系，这样，终端设备可以根据当前实时获取的格雷码信号整定结果以及该对应关系，确定控制棒当前所属棒位区间。例如，终端设备可以预设格雷码信号整定结果00001对应的棒位区间为棒位0-7，格雷码信号整定结果00011对应的棒位区间为棒位8-15等等，若终端设备当前获取的格雷码信号整定结果为00001，则可以确定该格雷码整定结果对应的棒位区间为棒位0-7。
步骤101，确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒 位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间。
举例来讲，在步骤101中，可以预先根据格雷码位信号的电压值随棒位变化的关系，确定每个棒位区间对应的多个棒位判定条件，每个棒位判定条件可以包括格雷码位信号的电压值区间，每个棒位判定条件可以对应一个棒位。表1示出了棒位区间对应的多个棒位判定条件的示例，如表1所示，棒位区间棒位0-7可以对应7个棒位判定条件，其中，棒位判定条件可以包括某一个格雷码位信号的电压值区间，例如，棒位0对应的棒位判定条件可以为格雷码A位信号(格雷码位信号的示例)电压值不大于4(电压值区间的示例)；棒位判定条件还可以包括多个不同的格雷码位信号的电压值区间，例如，棒位4对应的棒位判定条件可以为格雷码A位信号电压值大于7，且格雷码B位信号电压值不大于0。
表1棒位区间对应的多个棒位判定条件
步骤102，判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
步骤103，将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
在步骤102-103中，接上例，若获取的格雷码信号整定结果为00001，且该格雷码信号对应的格雷码A位信号的电压值为6.5，则可以先确定该格雷码信号 整定结果对应的棒位区间为棒位0-7，进一步的，根据表1中棒位0-7对应的多个棒位判定条件，可以确定该格雷码信号对应的棒位为棒位3。
本公开的压水堆控制棒棒位判定方法根据全行程棒位的各格雷码位信号电压确定全行程每个棒位的棒位判定条件，将格雷码位以及对应的格雷码位信号电压值与棒位进行对应，能够根据实时信号，通过棒位区间和棒位判定条件将当前实时获得的各格雷码位信号准确定位到每个棒位点，实现快速、准确的全行程棒位测量，为操纵员监控提供全堆芯、准确的棒位实时信息，为堆芯运行跟踪、堆芯安全计算及燃料精细化管理提供全堆芯、全燃料循环的精确棒位测量数据。
图2是根据一示例性实施例示出的一种压水堆控制棒棒位判定方法的流程图。需要说明的是，步骤200至步骤203可以在步骤100之前执行，也可以在步骤101之前执行，本公开对此不做限定。如图2所示，所述方法还包括：
步骤200，在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列。
举例来讲，在步骤200中，棒控系统可以操纵控制棒从起始棒位向终止棒位以一个机械步为单位单向运动，其中，可以根据测量棒位的需要选择起始棒位和终止棒位的具体位置，本公开对起始棒位和终止棒位的具体位置不做限定，例如，起始棒位可以为零步棒位，终止棒位为堆顶棒位；又如，起始棒位为堆顶棒位，终止棒位为零步棒位。
在控制棒从起始棒位步进至终止棒位的过程中，棒位探测器检测该控制棒并输出格雷码信号，该格雷码信号包括多个格雷码位信号(例如，该格雷码信 号可以包括格雷码A位信号、格雷码B位信号、格雷码C位信号、格雷码D位信号以及格雷码E位信号，需要说明的是，本公开对格雷码信号的位数不做限定)。可以对棒位探测器输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，例如，多个数据集合可以包括：第1次对各格雷码位信号进行电压采样得到的采样次序号为1的数据集合{Va1，Vb1，Vc1，Vd1，Ve1}，第2次对各格雷码位信号进行电压采样得到的采样次序号为2的数据集合{Va2，Vb2，Vc2，Vd2，Ve2}，...，第n次对各格雷码位信号进行电压采样得到的采样次序号为n的数据集合{Van，Vbn，Vcn，Vdn，Ven}，其中n为采样总次数。
步骤201，根据所述控制棒的棒位数量以及所述多个数据集合，确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算值。
举例来讲，步骤201可以包括，按照起始棒位至终止棒位之间棒位间隔的数量，将多个数据集合按照采样次序平均分配到各棒位之间，针对每个棒位，可以将该棒位与下一个棒位之间采样次序号最大的数据集合中目标格雷码信号的电压值作为该棒位对应的目标格雷码位信号的电压计算值。
举例来讲，步骤201还可以包括步骤2010和步骤2011。
步骤2010，根据所述控制棒从起始棒位至终止棒位的棒位数量以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合。
例如，根据相邻棒位间的格雷码位信号采样电压变化情况，可选择起始棒位起步时刻之后至终止棒位停止时刻之间采样得到的数据集合，并确定这些数据集合的个数(这样，可以有效滤除起始棒起步之前和终止棒位停顿之后的无效采样数据)；还可以确定起始棒位至终止棒位间的棒位间隔数，将确定的数据集合个数与棒位间隔数的比值作为相邻两个棒位间的数据集合的个数。接着，可以根据相邻两个棒位间的数据集合的个数，以及选择的多个数据集合的采样 次序，确定每两个相邻棒位之间的数据集合，例如，若确定相邻两个棒位间的数据集合的个数为5，则可以确定棒位0至棒位1之间为采样次序号11至采样次序号16的数据集合，棒位1至棒位2之间为采样次序号17至采样次序号22的数据集合，以此类推。
需要说明的是，也可以将采样总次数与全部棒位数之间的比值作为两个棒位间的数据集合的个数，或采用某一时段内采样次数与该时段对应棒位个数之间的比值来作为两个棒位间的数据集合的个数，本公开对此不做限定。
步骤2011，针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
举例来讲，可以在终端设备中预设每个棒位对应的目标格雷码位信号，则在步骤2011中，可以针对每个棒位确定该棒位对应的目标格雷码位信号，并选择该棒位与该棒位前一棒位之间采样次序号最大的目标格雷码位信号的电压值作为目标电压值，选择该目标电压值以及该目标电压值前N(N为正整数)个和后N个数据集合中的目标格雷码位信号的电压值作为暂定采样数据组，判断该暂定采样数据组中各电压值之间的差异是否符合预设条件(例如，采样数据组中各电压值之间的差值小于差值阈值，或采样数据组中各电压值的方差小于方差阈值等，又或者，采样数据组中各电压值均属于预设阈值区间，本公开对预设条件的具体形式不做限定)，若判定各电压值之间的差异不符合预设条件，则选择该目标电压值以及该目标电压值前N+1个和后N-1个数据集合中的目标格雷码位信号的电压值重新作为暂定采样数据组，并判断该新的暂定采样数据组中各电压值是否符合预设条件，以此类推，不断重新获取暂定采样数据组， 直至判定获取的暂定采样数据组中各电压值符合预设条件，则将该暂定采样数据组作为采样数据集合，并根据采样数据集合内各电压值，确定该棒位对应的该格雷码的电压计算值(例如，将采样数据集合内各电压值的平均值或加权平均值或中值或者是任意一个电压值，作为该棒位对应的该格雷码的电压计算值，本公开对采样数据集合内各电压值计算得到电压计算值的具体方式不做限定)。
表2示出了数据集合与棒位对应关系的示例，如表2所示，以棒位6为例进行以下说明：
针对棒位6，可以电压值变化最大的格雷码B位信号作为目标格雷码位信号，可以在棒位5对应的采样次序号110与棒位7对应的采样次序号140之间选择3个格雷码B位信号的电压值组成暂定采样数据组(例如采样次序号124-126的数据集合中各B位电压值)，判断该暂定采样数据组中各电压值之间的差值是否小于差值阈值(预设条件的示例)，且可以要求电压值之间的差值尽可能小，若判定各电压值的差值不小于差值阈值，则可以一个电压值为步长移动取样窗口获得新的一组暂定采样数据组(例如，朝向序号较小的方向移动数据取样窗口，取采样次序号123-125的数据集合中各B位电压值作为新的一组暂定采样数据组)，继续判断该暂定采样数据组中电压值之间的差值是否小于差值阈值，重复上述步骤直至判定获取的采样次序号122-124的数据集合中各B位电压值之间的差异符合预设条件，且最大的采样次序号124与采样次序号125最为接近，则确定计算集合为{237、237、237}，并确定棒位6的格雷码B位信号的电压计算值为237。
表2数据集合与棒位对应关系
此外，在步骤2011中，也可以针对每个棒位，遍历该棒位与该棒位前后棒位之间各数据集合中目标格雷码位信号的电压值，从中选择M(M为正整数)个差异符合预设条件且采样次序号连续排列的电压值数据，作为采样数据集合。
由于控制棒在移动期间因受强大的交变驱动电流(一般为几十安培)影响， 各格雷码位信号电压存在一定的波动；而控制棒静止期间棒位探测器输出的各格雷码位信号电压是相对稳定的，且与控制棒所在的位置存在强对应关系，因此，本公开根据差异最小的连续电压值序列确定棒位对应的电压计算值，可以更加准确的反映控制棒在每个棒位停止时刻的电压信号状态，从而帮助更准确的判断控制棒当前所在棒位。
步骤202，针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
举例来讲，在步骤202中，可以针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数(例如，将该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值的平均值或加权平均值等作为该棒位的计算参数，本公开对当前棒位以及当前棒位下一棒位的目标格雷码位信号的电压计算值计算得到计算参数的具体过程不做限定)。
步骤203，根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
在步骤203中，在确定得到各棒位对应的计算参数的情况下，可以根据各相邻棒位的目标格雷码位信号的计算参数形成包括格雷码位以及该格雷码位对应的格雷码位信号的电压值区间的棒位判定条件，如表1所示，以棒位0和棒位1为例，棒位0对应的目标格雷码位信号的计算参数为4，棒位1对应的目标格雷码位信号的计算参数为5，则可以确定棒位0的棒位判定条件是：格雷码A位信号电压值不大于4，棒位1的棒位判定条件是：格雷码A位信号电压值大于4，且不大于5。
在一种可能的实现方式中，步骤201还可以包括步骤2012，其中，步骤2012 可以在步骤2010和步骤2011之间执行，在步骤2012中，针对每个棒位，可以将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。例如，如表2所示，以棒位6为例，棒位6至棒位7之间，依照采样次序，格雷码C位信号、格雷码D位信号、格雷码E位信号的各电压值没有变化(其中，各电压值变化可以表示为各电压值中最大值与最小值之差，各电压值之间的方差、各电压值拟合的曲线斜率等，本公开对体现各电压值变化的形式不做限定)，格雷码A位信号的各电压值{505、504、504、503、503、503、502、502、503、503、503、503、503、502、502、502}的变化较小，而格雷码B位信号的各电压值{239、249、258、265、270、274、276、278、280、281、282、282、283、283、283、287}变化最大，则可以将格雷码B位信号作为棒位6的目标格雷码位信号。
这样，针对每个棒位，选择电压值变化最大的格雷码位信号，可以使得不同棒位之间判定条件的差异更加明显，对采集的电压值的精确度要求较低，有利于更加准确的确定格雷码信号对应的棒位。
在一种应用示例中，对本公开的压水堆控制棒棒位判定方法进行以下说明：
1)启动棒位测量通道对各格雷码位信号电压的高速、连续采样；
2)设置起始棒位和终止棒位，控制棒移动参考速度、格雷码位信号电压采样结果读取周期和棒静止状态下各格雷码位信号电压允许偏差量，设置的控制棒移动参考速度与格雷码位信号电压采样结果读取周期能确保对控制棒在静止状态下的各格雷码位信号电压采样数据不少于3个；
3)启动格雷码位信号电压连续采样，并将采样结果增加采样次序编号后存储。
4)通过棒控系统使控制棒以参考速度由起始棒位向终止棒位方向移动，直 到终止棒位。
5)确认控制棒已到达终止棒位后，停止格雷码信号电压采样。
6)可以根据第1个采样棒位和倒数第2个采样棒位的数据集合的个数和棒位间隔数据，计算相邻棒位间的数据集合个数。
7)考虑相邻棒位间的采样数据个数的余数修正，确定全行程各棒位对应的数据集合的采样次序号。
8)以采样次序号及前后各一个次序号的3个数据集合中的目标格雷码位信号对应的电压值至组成暂定采样数据组。
9)若判断暂定采样数据组内的各电压值偏差量不符合设定的允许偏差量，则在采样次序号相邻间数据集合中，通过前移或后移采样窗口重新得到暂定采样数据组，直至暂定采样数据组内的各电压值偏差量符合设定的允许偏差量，将该暂定采样数据组作为有效采样数据组。
10)将有效采样数据组内的各电压值的均值作为对应棒位的电压计算值。
11)根据各棒位目标格雷码位信号的电压值计算值得出各棒位对应的棒位判定条件
12)根据棒位探测器的格雷码位数、全行程棒位步数确定棒位判定逻辑，该棒位判定逻辑包括各格雷码位整定结果与测量棒位所在的区间以及棒位判定条件的对应关系。
13)根据当前各格雷码位信号的整定结果，以及各格雷码位整定结果与测量棒位所在的区间、棒位判定条件的对应关系，确定当前测量棒位。
在一种可能的实现方式中，提供一种压水堆控制棒棒位判定装置，所述装置包括：
第一确定模块，用于根据当前获取的格雷码信号整定结果以及格雷码信号 整定结果与棒位区间的对应关系，确定控制棒当前所属棒位区间；
第二确定模块，用于确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间；
判断模块，用于判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
第三确定模块，用于将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
在一种可能的实现方式中，所述装置还包括：
采样模块，用于在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列；
第四确定模块，用于根据所述控制棒的棒位数量以及所述多个数据集合，确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算值；
第五确定模块，用于针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
第六确定模块，用于根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
在一种可能的实现方式中，第四确定模块还包括：
第一确定子模块，用于根据所述控制棒从起始棒位至终止棒位的棒位数量 以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合；
第二确定子模块，用于针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
在一种可能的实现方式中，所述第四确定模块还包括：
第三确定子模块，用于针对每个棒位，将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。
针对上述压水堆控制棒棒位判定装置的说明可以参考上文针对压水堆控制棒棒位判定方法的描述，在此不再赘述。
图3是根据一示例性实施例示出的一种压水堆控制棒棒位判定装置的框图。例如，装置1900可以被提供为一服务器。参照图3，装置1900包括处理组件1922，其进一步包括一个或多个处理器，以及由存储器1932所代表的存储器资源，用于存储可由处理组件1922的执行的指令，例如应用程序。存储器1932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1922被配置为执行指令，以执行上述方法。
装置1900还可以包括一个电源组件1926被配置为执行装置1900的电源管理，一个有线或无线网络接口1950被配置为将装置1900连接到网络，和一个输入输出(I/O)接口1958。装置1900可以操作基于存储在存储器1932的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种非易失性计算机可读存储介质，例如包括计算机程序指令的存储器1932，上述计算机程序指令可由装置1900的处理组 件1922执行以完成上述方法。
本公开可以是系统、方法和/或计算机程序产品。计算机程序产品可以包括计算机可读存储介质，其上载有用于使处理器实现本公开的各个方面的计算机可读程序指令。
计算机可读存储介质可以是可以保持和存储由指令执行设备使用的指令的有形设备。计算机可读存储介质例如可以是――但不限于――电存储设备、磁存储设备、光存储设备、电磁存储设备、半导体存储设备或者上述的任意合适的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：便携式计算机盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、静态随机存取存储器(SRAM)、便携式压缩盘只读存储器(CD-ROM)、数字多功能盘(DVD)、记忆棒、软盘、机械编码设备、例如其上存储有指令的打孔卡或凹槽内凸起结构、以及上述的任意合适的组合。这里所使用的计算机可读存储介质不被解释为瞬时信号本身，诸如无线电波或者其他自由传播的电磁波、通过波导或其他传输媒介传播的电磁波(例如，通过光纤电缆的光脉冲)、或者通过电线传输的电信号。
这里所描述的计算机可读程序指令可以从计算机可读存储介质下载到各个计算/处理设备，或者通过网络、例如因特网、局域网、广域网和/或无线网下载到外部计算机或外部存储设备。网络可以包括铜传输电缆、光纤传输、无线传输、路由器、防火墙、交换机、网关计算机和/或边缘服务器。每个计算/处理设备中的网络适配卡或者网络接口从网络接收计算机可读程序指令，并转发该计算机可读程序指令，以供存储在各个计算/处理设备中的计算机可读存储介质中。
用于执行本公开操作的计算机程序指令可以是汇编指令、指令集架构(ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以 一种或多种编程语言的任意组合编写的源代码或目标代码，所述编程语言包括面向对象的编程语言—诸如Smalltalk、C++等，以及常规的过程式编程语言—诸如“C”语言或类似的编程语言。计算机可读程序指令可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络—包括局域网(LAN)或广域网(WAN)—连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。在一些实施例中，通过利用计算机可读程序指令的状态信息来个性化定制电子电路，例如可编程逻辑电路、现场可编程门阵列(FPGA)或可编程逻辑阵列(PLA)，该电子电路可以执行计算机可读程序指令，从而实现本公开的各个方面。
这里参照根据本公开实施例的方法、装置(系统)和计算机程序产品的流程图和/或框图描述了本公开的各个方面。应当理解，流程图和/或框图的每个方框以及流程图和/或框图中各方框的组合，都可以由计算机可读程序指令实现。
这些计算机可读程序指令可以提供给通用计算机、专用计算机或其它可编程数据处理装置的处理器，从而生产出一种机器，使得这些指令在通过计算机或其它可编程数据处理装置的处理器执行时，产生了实现流程图和/或框图中的一个或多个方框中规定的功能/动作的装置。也可以把这些计算机可读程序指令存储在计算机可读存储介质中，这些指令使得计算机、可编程数据处理装置和/或其他设备以特定方式工作，从而，存储有指令的计算机可读介质则包括一个制造品，其包括实现流程图和/或框图中的一个或多个方框中规定的功能/动作的各个方面的指令。
也可以把计算机可读程序指令加载到计算机、其它可编程数据处理装置、 或其它设备上，使得在计算机、其它可编程数据处理装置或其它设备上执行一系列操作步骤，以产生计算机实现的过程，从而使得在计算机、其它可编程数据处理装置、或其它设备上执行的指令实现流程图和/或框图中的一个或多个方框中规定的功能/动作。
附图中的流程图和框图显示了根据本公开的多个实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或指令的一部分，所述模块、程序段或指令的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
在一种可能的实现方式中，提供一种压水堆棒位测量系统，所述压水堆棒位测量系统包括上文所述的压水堆控制棒棒位判定装置，所述棒位测量系统用于提供反应堆各控制棒组的实时棒位指示。
以上已经描述了本公开的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场中的技术的技术改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。

Claims (11)

  1. 一种压水堆控制棒棒位判定方法，其特征在于，所述方法包括：
    步骤100，根据当前获取的格雷码信号整定结果以及格雷码信号整定结果与棒位区间的对应关系，确定控制棒当前所属棒位区间；
    步骤101，确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间；
    步骤102，判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
    步骤103，将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    步骤200，在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列；
    步骤201，根据所述控制棒的棒位数量以及所述多个数据集合，确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算值；
    步骤202，针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
    步骤203，根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
  3. 根据权利要求2所述的方法，其特征在于，步骤201还包括：
    步骤2010，根据所述控制棒从起始棒位至终止棒位的棒位数量以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合；
    步骤2011，针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
  4. 根据权利要求2所述的方法，其特征在于，步骤201还包括：
    步骤2012，针对每个棒位，将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。
  5. 一种压水堆控制棒棒位判定装置，其特征在于，所述装置包括：
    第一确定模块，用于根据当前获取的格雷码信号整定结果以及格雷码信号整定结果与棒位区间的对应关系，确定控制棒当前所属棒位区间；
    第二确定模块，用于确定控制棒当前所属棒位区间对应的多个棒位判定条件，每个棒位判定条件对应一个棒位，每个棒位判定条件包括格雷码位信号的电压值区间；
    判断模块，用于判断当前获取的各格雷码位信号的电压值与确定的多个棒位判定条件是否匹配；
    第三确定模块，用于将与当前获取的格雷码位信号的电压值相匹配的的棒位判定条件对应的棒位作为所述控制棒当前的测量棒位。
  6. 根据权利要求5所述的装置，其特征在于，所述装置还包括：
    采样模块，用于在控制棒从起始棒位步进至终止棒位的过程中，对棒位探测器检测所述控制棒输出的各格雷码位信号以预设频率进行电压采样，获得多个数据集合，每次采样得到一个数据集合，每次采样的数据集合包括该次采样的各格雷码位信号的电压值，各数据集合按采样次序排列；
    第四确定模块，用于根据所述控制棒的棒位数量以及所述多个数据集合， 确定从起始棒位至终止棒位中每个棒位对应的目标格雷码位信号的电压计算值；
    第五确定模块，用于针对每个棒位，根据该棒位的目标格雷码位信号的电压计算值和该棒位下一棒位的目标格雷码位信号的电压计算值，确定该棒位的计算参数；
    第六确定模块，用于根据各棒位对应的计算参数和棒位区间，确定每个棒位区间对应的多个棒位判定条件。
  7. 根据权利要求6所述的装置，其特征在于，第四确定模块还包括：
    第一确定子模块，用于根据所述控制棒从起始棒位至终止棒位的棒位数量以及所述多个数据集合的采样次序，确定每两个相邻棒位之间的数据集合；
    第二确定子模块，用于针对每个棒位，从该棒位与该棒位前后棒位之间的多个数据集合中确定计算集合，并根据该计算集合，确定该棒位的目标格雷码位信号的电压计算值，该计算集合包括多个目标格雷码位信号的电压值，该多个目标格雷码位信号的电压值之间的差异符合预设条件。
  8. 根据权利要求6所述的装置，其特征在于，所述第四确定模块还包括：
    第三确定子模块，用于针对每个棒位，将该棒位至该棒位下一棒位电压值变化最大的格雷码位信号作为目标格雷码位信号。
  9. 一种压水堆控制棒棒位判定装置，其特征在于，所述装置包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为执行权利要求1至4中任意一项所述的方法。
  10. 一种非易失性计算机可读存储介质，其上存储有计算机程序指令，其特征在于，所述计算机程序指令被处理器执行时实现权利要求1至4中任意一 项所述的方法。
  11. 一种压水堆棒位测量系统，其特征在于，所述压水堆棒位测量系统包括如权利要求9所述的压水堆控制棒棒位判定装置，所述棒位测量系统用于提供反应堆各控制棒组的实时棒位指示。
PCT/CN2023/075790 2022-05-12 2023-02-14 压水堆控制棒棒位判定方法、装置以及棒位测量系统 WO2023216663A1 (zh)

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