CN116189947A - Default value setting method, device, equipment, medium and program product for nuclear power plant - Google Patents

Default value setting method, device, equipment, medium and program product for nuclear power plant Download PDF

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Publication number
CN116189947A
CN116189947A CN202211619596.4A CN202211619596A CN116189947A CN 116189947 A CN116189947 A CN 116189947A CN 202211619596 A CN202211619596 A CN 202211619596A CN 116189947 A CN116189947 A CN 116189947A
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China
Prior art keywords
input signal
quality bit
functional block
value
state
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CN202211619596.4A
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Inventor
杨鹏程
刘东亮
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
CGN Power Co Ltd
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
CGN Power Co Ltd
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Priority to CN202211619596.4A priority Critical patent/CN116189947A/en
Publication of CN116189947A publication Critical patent/CN116189947A/en
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/001—Computer implemented control
    • 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

Abstract

The application relates to a default value setting method, device, equipment, medium and program product for a nuclear power plant. The application relates to the technical field of nuclear power. The method comprises the following steps: acquiring an input signal of a functional block in a digital control system of a nuclear power station; determining the quality bit of the input signal according to the preset interval range and the numerical value in the input signal; the quality bits are passed to other functional blocks connected to the functional block. By adopting the method, the increase of logic complexity can be avoided.

Description

Default value setting method, device, equipment, medium and program product for nuclear power plant
Technical Field
The present invention relates to the field of nuclear power technology, and in particular, to a method, an apparatus, a device, a medium, and a program product for setting a default value of a nuclear power plant.
Background
The control of the reactor protection system and the nuclear safety level equipment of the current state-of-the-art and construction nuclear power units is realized by a digital control system (Digital Control System, DCS). The DCS generally realizes default setting through function blocks, and increases the functions of signal invalidity judgment and automatic selection. When the external or internal equipment is in fault and the signal is abnormal, the functional blocks are output according to default values, if the default values are improperly designed, the fault expansion can be caused, and the nuclear safety and the normal operation of the unit can be directly affected.
However, the existing default design method focuses on the input signal or output signal outside the DCS, and there is no study on the design method of the default inside the DCS. If a user proposes an improvement suggestion to a design method of a default value in the process of construction or operation of a nuclear power plant, the design scheme or test scheme can only be adjusted according to the characteristics of the existing functional blocks, but the method increases logic complexity.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a default value setting method, apparatus, device, medium, and program product for a nuclear power plant that can avoid increasing the logic complexity.
In a first aspect, the present application provides a method for setting a default value of a nuclear power plant. The method comprises the following steps:
acquiring an input signal of a functional block in a digital control system of the nuclear power station;
determining the quality bit of the input signal according to the preset interval range and the numerical value in the input signal;
the quality bits are passed to other functional blocks connected to the functional block.
In one embodiment, determining the quality bits of the input signal according to the preset interval range and the value in the input signal includes:
if the value in the input signal is within the preset interval range, determining the quality bit of the input signal as a first state quality bit.
In one embodiment, the method further comprises:
if the value in the input signal is not in the preset interval range, determining the quality bit of the input signal as a second state quality bit.
In one embodiment, the method further comprises:
acquiring a value in the input signal;
determining an actual output value of the functional block according to the value;
and outputting the actual output value to other functional blocks connected with the functional block through the functional block.
In one embodiment, the function block comprises a voting function block; the method further comprises the steps of:
when the input signal is a first state quality bit or a second state quality bit, the voting functional block transmits the first state quality bit to other functional blocks connected with the voting functional block;
when the input signal is in the first state quality bit or the second state quality bit, any other functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block.
In one embodiment, determining the actual output value of the functional block based on the value includes:
when the input signal is the first state quality bit or the second state quality bit, the actual output value of the functional block is calculated by utilizing a preset algorithm corresponding to the functional block according to the value.
In a second aspect, the present application further provides a default setting device for a nuclear power plant. The device comprises:
the first acquisition module is used for acquiring input signals of functional blocks in a digital control system of the nuclear power station;
the first determining module is used for determining the quality bit of the input signal according to the preset interval range and the numerical value in the input signal;
and the first transfer module is used for transferring the quality bit to other functional blocks connected with the functional block.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of any of the methods of the first aspect described above when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium. A computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the methods of the first aspect described above.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, implements the steps of any of the methods of the first aspect described above.
The default setting method, the default setting device, the default setting equipment, the default setting medium and the default setting program are used for acquiring the input signals of the functional blocks in the digital control system of the nuclear power station, and determining the quality bits of the input signals according to the preset interval range and the numerical values in the input signals, so that the quality bits are transmitted to other functional blocks connected with the functional blocks. That is, in the embodiment of the present application, the quality bits of the input signal are determined according to the preset interval range and the numerical value in the input signal, and the functional block only transmits the quality bits to other functional blocks, so that the quality bits of the input signal are not judged any more, and further, the input signal is prevented from being preprocessed by other functional blocks, thereby avoiding increasing the logic complexity. For example, the quality bit of the input signal is actually the first state quality bit, but because the value of the input signal does not meet the preset algorithm of the functional block, the functional block determines the quality bit of the input signal as the second state quality bit in an error way, if the purpose of avoiding the error determination of the quality bit of the input signal by the functional block is achieved, other functional blocks are needed to preprocess the input signal, and the method can cause logic complexity to be increased.
Drawings
Fig. 1 is a schematic flow chart of a default setting method of a nuclear power station according to an embodiment of the present application;
fig. 2 is a second flowchart of a default setting method of a nuclear power plant according to an embodiment of the present application;
fig. 3 is a third flow chart of a default setting method of a nuclear power plant according to an embodiment of the present application;
fig. 4 is a block diagram of a default setting device of a nuclear power plant according to an embodiment of the present application;
fig. 5 is an internal structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The function block refers to a programming mode of calculating an input value according to a specific formula and then outputting the calculated input value in DCS software. The input value and the output value both comprise two attributes of a numerical value and a quality bit, the numerical value comprises two numerical value types of a digital quantity and an analog quantity, and the quality bit comprises two states of good quality bit and bad quality bit. Because of the interaction between the numerical value and the quality bit, the default value of the functional block refers to the numerical calculation method of the output value under the condition that the quality bit is good and the quality bit is bad respectively. The default value of the functional block also refers to a calculation method of the quality bit of the output value when the value of the input value is in different intervals and the input value is in good quality bit and bad quality bit respectively. The purpose of the default values is typically set by the function block: the system is used for displaying and alarming, prompting operators and testers to judge whether the input signals represent actual working conditions or not; and secondly, a specific design purpose is achieved by setting different calculation formulas, for example, when an upstream signal fails, the downstream control logic can act towards a safe position.
The reactor protection system generally needs to judge the state of an input signal, bypass and degrade the unreliable input signal, and because the downstream logic branches affected by a single signal of the reactor protection system are generally more, the influence on downstream signal display and alarm display when the single signal is in an unreliable state needs to be considered.
The existing default setting method of the nuclear power station has large difference and has no unified method. Meanwhile, the current default setting method focuses on an input signal or an output signal outside the DCS, and lacks a study of a setting method of the default inside the DCS. Meanwhile, in the design process of the nuclear power plant, a user usually only puts forward corresponding requirements on default values of input signals or output signals outside the DCS, and the corresponding requirements on the default values inside the DCS are lacked. If a user proposes an improvement suggestion to a default setting method in the construction and operation process of a nuclear power plant, due to huge DCS modification cost, a design scheme or a test scheme can be adjusted only according to the characteristics of the existing functional blocks, but the method complicates control logic and reduces reliability. Meanwhile, the production and construction costs are increased.
At present, under normal working conditions, as the numerical value of the source input signal of the DCS is in a certain interval, the quality position of the source input signal is good, but the numerical value of the source input signal violates the mathematical operation rule set by the functional block, the default value of the functional block on the source input signal which cannot be processed is set to be quality position bad, and the quality position is inconsistent with the state that the source input signal is normal. For example, an evolution function block typically used for flow calculation cannot perform an evolution operation on a value smaller than 0 in mathematical logic. When the flow meter is near the zero point of the physical measuring range, the output current of the transmitter may be less than 4mA, if the output current of the transmitter is 3.92mA, the actual working condition is still a normal working condition, but at the moment, because the output current of the transmitter is 3.92mA less than 4mA, the input signal of the evolution function block is negative, and the evolution function block cannot conduct evolution calculation. According to the existing default setting method, when the functional block cannot directly perform mathematical operation on the input signal, the quality bit of the output signal of the functional block is output according to the default, and if the default is set as bad, the output signal is displayed as a fault or error signal on the man-machine interface, which is inconsistent with the actual working condition.
The method aims at the situation that when the actual working condition is a normal working condition, the input signal is of good quality, but because the numerical value of the input signal does not meet the mathematical operation rule, the function block erroneously judges the state of the input signal to be unreliable, so that the state of the output signal is inconsistent with the actual working condition, and a user checks the output signal on a human-computer interface to easily generate erroneous judgment. In addition, the signals in DCS are typically used in reactor protection systems, and due to bad quality bits of the output signals of the functional blocks, logic degradation of the reactor protection system may be caused, with risk of malfunction. In engineering application, if the functional block performs error judgment on the input signal, and the default value is set to be bad, the input signal needs to be preprocessed through other functional blocks, so that the complexity of control logic is increased, and the reliability is reduced.
When the quality bits of the input signal are bad, one of the common ways of default value setting of the functional block is to output as actual values: whether the quality bit of the input signal is good or bad, calculating and outputting according to a calculation formula set by the functional block; and secondly, outputting according to the last good value: when the quality bit of the input signal is changed from good to bad and is not changed any more, outputting according to the value calculated when the quality bit of the input signal is good at the last time; thirdly, outputting according to the substitution value: when the quality bit of the input signal is bad and no longer changes, the signal is output according to the fixed value set in the functional block.
When the operation condition of the nuclear power station changes, the quality bit of the input signal also changes, the default value of the functional block changes suddenly between the substitute value and the actual value, so that the downstream regulating valve and the control logic also change drastically along with the sudden change of the default value, which may cause the operation state of the nuclear power station to fluctuate. For example, when the unit increases power, part of upstream probe signals are changed from a state of never entering the acquisition range of the probe to a state of entering the acquisition range of the probe, and the quality bits of the corresponding input signals are changed from bad to good. If the default value is set to be output with the replacement value or the last good value, when the input signal enters the range of the probe, the quality bit of the input signal changes from bad to good, and the output signal of the functional block changes from the replacement value to the actual value. For example, for a first-order filtering function block for eliminating transient disturbance and preventing signal fluctuation, when the quality bit of an input signal is changed from bad, the output of the first-order filtering function block is changed drastically, so that the protection threshold value of a reactor protection system may be triggered, or a downstream control device such as a valve adjusting opening degree is changed drastically, so that the first-order filtering function block loses the filtering function, which affects the safe operation of a nuclear power station.
In general, the quality bit state of an upstream functional block in the DCS is transferred to a downstream functional block, and then the quality bit of a source input signal of the DCS is bad, and then the quality bits of the functional blocks on all logic paths downstream of the source input signal and the output signal of the DCS are bad. And a large number of voting logics of 'two out of three' and 'two out of four' are used in the reactor protection system, when a single input signal fails, after the quality bit corresponding to the single input signal is bad, whether the voting logic is triggered or not, the quality bits of all signals downstream of the voting logic are bad, the state of the signals is regarded as unreliable, namely bad point signals, and related alarms are displayed and shielded by using prompt information on a man-machine picture.
The bad point signals are displayed on the man-machine picture in a red frame or gray bottom mode, and the bad point signals are considered to be unreal alarms due to bad quality of input signals, so that the bad point signals cannot be displayed on an alarm list, and monitoring of the state of the machine set is seriously affected. For example, during normal operation of the unit, a failure of one of the probes of the reactor containment pressure results in a bad quality bit of the single input signal, which in turn results in degradation of the voting logic of "two-three" and "two-four", the downstream safety injection and safety injection signals of the input signal are not actually triggered, but the bad quality bit information is transmitted to all downstream alarm display and equipment, and the alarm information thereof is shielded. When the second probe reaches the protection threshold value, a protection signal is triggered, safety injection and safety spraying alarms are actually triggered, but cannot be displayed in an alarm list of a man-machine picture, all downstream process system alarm displays are also shielded, and judgment of a unit state by an operator in the nuclear power station is seriously misled. If the quality bit of a single input signal is prevented from being damaged due to the failure of a single probe, and the alarm display of a downstream process system is affected, reprocessing is needed on a transmission link of the input signal to remove the quality bit damage, but the logic complexity is increased, and the reliability is reduced. In order to solve the technical problems, the embodiment of the application provides a default value setting method of a nuclear power station.
In one embodiment, fig. 1 is one of the flow diagrams of a default setting method for a nuclear power plant according to the embodiment of the present application, where the method includes the following steps:
s101, acquiring input signals of functional blocks in a digital control system of the nuclear power station.
The digital control system (Digital Control System, DCS) is a distributed control system based on computer and network communication (also called Distributed Control System, DCS). The DCS connects site control stations distributed near an industrial site with operator stations and engineer stations of a control center, etc. through a certain communication network to complete decentralized control and centralized operation management of the site production equipment. The input signal contains two properties of a value and a quality bit, the quality bit comprising two cases of good quality bit and bad quality bit.
In the embodiment of the application, the computer equipment acquires the input signals of the functional blocks in the digital control system of the nuclear power station in a mode that a plurality of probes acquire the same physical quantity.
The reliability of the acquired physical quantity can be increased and the safety redundancy can be improved by utilizing a plurality of probes to acquire the same physical quantity. For example, multiple probes may be used to collect the output current of the transducer to improve the reliability of the output current of the transducer.
S102, determining the quality bit of the input signal according to the preset interval range and the numerical value in the input signal.
The preset interval range may include: the historical experience is used for setting the interval range of the numerical value corresponding to the quality bit of the input signals of different types.
In the embodiment of the application, the computer device may determine the quality bit of the input signal according to the range of the values corresponding to the "quality bit good" of the input signal of different types and the values of the input signal.
Specifically, if the value of an input signal of a certain type is within the range of the value corresponding to the "quality bit good" of the input signal of that type, the quality bit of the input signal of that type is considered to be good; conversely, if the value of the input signal is not within the interval of values corresponding to the "quality bits good" of the type of input signal, the quality bits of the type of input signal are considered bad. For example, the value of the current of the transmitter is 3 milliamps, the range of values corresponding to the "good quality" for the current of the transmitter is 2.5 milliamps to 4.2 milliamps, and 3 milliamps in this range of values is considered to be good quality for the output current of the transmitter.
It should be noted that, for the input signal under the abnormal working condition, for example, the quality bit of the input signal can be determined according to the preset interval range and the numerical value in the input signal due to the conditions of probe damage, cable short line and the like.
And S103, transmitting the quality bit to other functional blocks connected with the functional blocks.
In the embodiment of the application, if the quality bit of the input signal is good, the quality bit of the output signal of the functional block is good, and the quality bit is transferred to other functional blocks connected with the functional block. If the quality bit of the input signal is bad, the quality bit of the output signal of the functional block is bad, and the quality bit bad is transferred to other functional blocks connected to the functional block.
According to the default setting method of the nuclear power station, the input signals of the functional blocks in the digital control system of the nuclear power station are obtained, and the quality bits of the input signals are determined according to the preset interval range and the numerical values in the input signals, so that the quality bits are transmitted to other functional blocks connected with the functional blocks. That is, in the embodiment of the present application, the quality bits of the input signal are determined according to the preset interval range and the numerical value in the input signal, and the functional block only transmits the quality bits to other functional blocks, so that the quality bits of the input signal are not judged any more, and further, the input signal is prevented from being preprocessed by other functional blocks, thereby avoiding increasing the logic complexity. For example, the quality bit of the input signal is actually the first state quality bit, but because the value of the input signal does not meet the preset algorithm of the functional block, the functional block determines the quality bit of the input signal as the second state quality bit in an error way, if the purpose of avoiding the error determination of the quality bit of the input signal by the functional block is achieved, other functional blocks are needed to preprocess the input signal, and the method can cause logic complexity to be increased.
In one embodiment, the embodiment of the present application relates to a possible implementation manner of determining a quality bit of an input signal according to a preset interval range and a value in the input signal, where on the basis of the embodiment, S102 includes:
if the value in the input signal is within the preset interval range, the quality bit of the input signal is determined to be the first state quality bit.
Wherein the first state quality bits may comprise quality bits.
In the embodiment of the present application, if the value in the input signal is within the preset interval range, it may be determined that the quality bit of the input signal is good.
According to the method provided by the embodiment, the quality bit of the input signal is determined to be the first state quality bit through the fact that the numerical value in the input signal is located in the preset interval range. The quality bit of the input signal can be directly judged through a reasonable interval, so that the complexity of DCS control logic is reduced.
In one embodiment, the method further comprises:
if the value in the input signal is not in the preset interval range, determining the quality bit of the input signal as the second state quality bit.
Wherein the second state quality bits may include quality bit bad.
In the embodiment of the present application, if the value in the input signal is not within the preset interval range, it may be determined that the quality bit of the input signal is a quality bit bad.
It should be noted that, the numerical values in the input signal may be preprocessed by using a piecewise function or the like, and then the subsequent mathematical operation may be performed.
According to the method provided by the embodiment, if the numerical value in the input signal is not in the preset interval range, the quality bit of the input signal is determined to be the second state quality bit, and the quality bit of the input signal can be directly judged through a reasonable interval, so that the complexity of DCS control logic is reduced. The numerical values in the input signals are preprocessed by using a piecewise function and other methods, and then subsequent mathematical operation is performed, so that misjudgment caused by a user due to inconsistent quality bits of the output signals and actual working conditions can be avoided, degradation of reactor protection logic is avoided, and the risk of misoperation is reduced.
In an embodiment, fig. 2 is a second flowchart of a default setting method of a nuclear power station according to an embodiment of the present application, where the method further includes:
s201, acquiring a numerical value in an input signal.
In embodiments of the present application, a computer device may obtain a value in an input signal and a quality bit state in the input signal.
S202, determining the actual output value of the functional block according to the value.
In this embodiment of the present application, the computer device may determine a quality bit of the power input signal according to a value in the input signal, and when the quality bit is bad, the default value of the functional block may be an actual output value according to the value of the input signal by using the calculated value.
It should be noted that, voting logic is commonly applied in a reactor protection system, and a specific functional block reads the quality bit of an input signal, when the quality bit of the input signal is bad due to a sensor fault, a signal link fault and the like of an upstream signal, the voting logic is degraded, no matter what value the functional block outputs, the voting of the control logic is not affected, and then the reactor protection system is not affected to realize the function. Thus, the default value is output as the actual output value.
S203, outputting the actual output value to other functional blocks connected with the functional blocks through the functional blocks.
In the embodiment of the present application, the computer device may output the actual output value obtained in S202 to other functional blocks connected to the functional block through the functional block.
According to the method provided by the embodiment, the actual output value of the functional block is determined according to the value obtained from the input signal, so that the actual output value is output to other functional blocks connected with the functional block through the functional block. That is, in this embodiment, the design purpose of the functional block is to conform to the actual working condition, that is, there is no signal mutation, so that the actual output value of the functional block is determined according to the value, so that the value mutation of the output signal of the functional block can be avoided, and thus, the fluctuation of the operation state of the nuclear power station can be avoided.
In one embodiment, fig. 3 is a third flow chart of a default setting method of a nuclear power plant according to the embodiment of the present application, where the functional blocks include voting functional blocks, and the method further includes:
and S301, when the input signal is a first state quality bit or a second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks.
The voting functional block can perform a two-out-of-four or two-out-of-three second voting operation on the information obtained after the quality bit judgment of the input signal so as to determine whether the reactor protection action is triggered or not.
In the embodiment of the application, when the input signal is good quality bit or bad quality bit, the computer device can transmit the first state quality bit to other functional blocks connected with the voting functional block through the voting functional block, namely, the transmission quality bit is good. For example, the voting function block A communicates a quality bit good to the function block B connected to the voting function block.
S302, when the input signal is in the first state quality bit or the second state quality bit, any one of the other functional blocks except the voting functional block transmits the quality bit state same as the input signal to the other functional block connected with any one of the other functional blocks.
In the embodiment of the present application, when the input signal is good in quality bit or bad in quality bit, except for the voting function, any other functional block transmits the quality bit state identical to the input signal to the other functional block connected with any other functional block. For example, in addition to the voting function block a, the function block C may transmit the same quality bit state as the input signal to the other function block F connected to the function block C, may transmit the same quality bit state as the input signal to the other function block T connected to the function block B, or may transmit the same quality bit state as the input signal to the other function block W connected to the function block E.
It should be noted that, the reactor protection system generally adopts a manner that multiple probes collect the same physical quantity to improve the safety redundancy. Input signals collected by the plurality of probes are voted through the voting functional blocks, fault signals with bad quality bits are bypassed and degraded, and the purpose of voting logic set by the voting functional blocks is to reject unreliable signals and comprehensively judge the plurality of input signals. Especially when the quality bit of a single upstream signal is bad, the voting logic of the voting functional block usually does not trigger the reactor protection action actually, and if the quality bit bad signal is rejected by the voting functional block, the quality bit bad signal is transmitted to tens of systems at the downstream again, so that the judgment of the operation state of the nuclear power station by operators in the nuclear power station can be interfered. Therefore, the quality bit of the output signal of the voting function block is meaningless, and when the input signal is the quality bit bad, the voting function does not pass the quality bit.
According to the method provided by the embodiment, when the input signal is the first state quality bit or the second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks, when the input signal is the first state quality bit or the second state quality bit, any functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block, and the transmission of the signal of the second state quality bit to the other functional blocks can be avoided, so that the downstream alarm and the display information fault caused by single signal fault errors can be avoided.
In one embodiment, this embodiment relates to a possible implementation of determining the actual output value of the functional block and the quality bit state of the output signal according to the value, where, based on the above embodiment, S202 includes:
and when the input signal is the first state quality bit or the second state quality bit, calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value.
The preset algorithm may include an evolution algorithm and the like. For example, when the flow calculation is performed, the preset algorithm may be an evolution operation.
In this embodiment of the present application, when the input signal is a good quality bit or a bad quality bit, the quality bit of the power input signal is determined according to the value of the input signal, and when the quality bit is a bad quality bit, the default value of the functional block may calculate the actual output value of the functional block according to the value of the input signal through a preset algorithm corresponding to the functional block.
According to the method provided by the embodiment, when the input signal is the first state quality bit or the second state quality bit, the actual output value of the functional block is calculated by utilizing the preset algorithm corresponding to the functional block, and the design purpose of the functional block is consistent with the actual working condition, so that the abrupt change of the value of the output signal of the functional block can be avoided.
It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the present application also provides a default value setting device of a nuclear power plant for implementing the default value setting method of the nuclear power plant. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the default setting device for one or more nuclear power plants provided below may refer to the limitation of the default setting method for a nuclear power plant hereinabove, and will not be repeated herein.
In one embodiment, as shown in fig. 4, there is provided a default value setting apparatus of a nuclear power plant, the apparatus 400 including: a first acquisition module 401, a first determination module 402, and a first transfer module 403, wherein:
a first obtaining module 401, configured to obtain an input signal of a functional block in a digital control system of a nuclear power plant;
a first determining module 402, configured to determine a quality bit of an input signal according to a preset interval range and a numerical value in the input signal;
a first transfer module 403, configured to transfer the quality bits to other functional blocks connected to the functional blocks.
According to the default setting device for the nuclear power station, the input signals of the functional blocks in the digital control system of the nuclear power station are obtained, and the quality bits of the input signals are determined according to the preset interval range and the numerical values in the input signals, so that the quality bits are transmitted to other functional blocks connected with the functional blocks. That is, in the embodiment of the present application, the quality bits of the input signal are determined according to the preset interval range and the numerical value in the input signal, and the functional block only transmits the quality bits to other functional blocks, so that the quality bits of the input signal are not judged any more, and further, the input signal is prevented from being preprocessed by other functional blocks, thereby avoiding increasing the logic complexity. For example, the quality bit of the input signal is actually the first state quality bit, but because the value of the input signal does not meet the preset algorithm of the functional block, the functional block determines the quality bit of the input signal as the second state quality bit in an error way, if the purpose of avoiding the error determination of the quality bit of the input signal by the functional block is achieved, other functional blocks are needed to preprocess the input signal, and the method can cause logic complexity to be increased.
In one embodiment, the first determining module 402 includes:
and the determining unit is used for determining that the quality bit of the input signal is the first state quality bit if the numerical value in the input signal is in the preset interval range.
In one embodiment, the apparatus 400 further comprises:
and the second determining module is used for determining that the quality bit of the input signal is the second state quality bit if the numerical value in the input signal is not in the preset interval range.
In one embodiment, the apparatus 400 further comprises:
the second acquisition module is used for acquiring the numerical value in the input signal;
the third determining module is used for determining the actual output value of the functional block according to the value size;
and the output module is used for outputting the actual output value to other functional blocks connected with the functional blocks through the functional blocks.
In one embodiment, the second determining module includes:
the first transfer unit is used for transferring the first state quality bit to other functional blocks connected with the voting functional blocks when the input signal is the first state quality bit or the second state quality bit;
and the second transmission unit is used for transmitting the quality bit state which is the same as the input signal to other functional blocks connected with any other functional blocks except the voting functional block when the input signal is the first state quality bit or the second state quality bit.
In one embodiment, the third determination module includes:
and the calculating unit is used for calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value when the input signal is the first state quality bit or the second state quality bit.
The above-described respective modules in the default value setting apparatus of the nuclear power plant may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 5. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by the processor, implements a default setting method for a nuclear power plant. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
acquiring an input signal of a functional block in a digital control system of the nuclear power station;
determining the quality bit of the input signal according to a preset interval range and a numerical value in the input signal;
and transmitting the quality bit to other functional blocks connected with the functional block.
In one embodiment, the processor when executing the computer program further performs the steps of:
and if the numerical value in the input signal is in the preset interval range, determining that the quality bit of the input signal is a first state quality bit.
In one embodiment, the processor when executing the computer program further performs the steps of:
And if the numerical value in the input signal is not in the preset interval range, determining the quality bit of the input signal as a second state quality bit.
In one embodiment, the processor when executing the computer program further performs the steps of:
acquiring a numerical value in the input signal;
determining an actual output value of the functional block according to the value;
and outputting the actual output value to other functional blocks connected with the functional block through the functional block.
In one embodiment, the processor when executing the computer program further performs the steps of:
when the input signal is a first state quality bit or a second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks;
when the input signal is in the first state quality bit or the second state quality bit, any other functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block.
In one embodiment, the processor when executing the computer program further performs the steps of:
and when the input signal is the first state quality bit or the second state quality bit, calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring an input signal of a functional block in a digital control system of the nuclear power station;
determining the quality bit of the input signal according to a preset interval range and a numerical value in the input signal;
and transmitting the quality bit to other functional blocks connected with the functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and if the numerical value in the input signal is in the preset interval range, determining that the quality bit of the input signal is a first state quality bit.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and if the numerical value in the input signal is not in the preset interval range, determining the quality bit of the input signal as a second state quality bit.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring a numerical value in the input signal;
determining an actual output value and an output signal of the functional block according to the value;
And outputting the actual output value to other functional blocks connected with the functional block through the functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
when the input signal is a first state quality bit or a second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks;
when the input signal is in the first state quality bit or the second state quality bit, any other functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and when the input signal is the first state quality bit or the second state quality bit, calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value.
In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of:
acquiring an input signal of a functional block in a digital control system of the nuclear power station;
Determining the quality bit of the input signal according to a preset interval range and a numerical value in the input signal;
and transmitting the quality bit to other functional blocks connected with the functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and if the numerical value in the input signal is in the preset interval range, determining that the quality bit of the input signal is a first state quality bit.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and if the numerical value in the input signal is not in the preset interval range, determining the quality bit of the input signal as a second state quality bit.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring a numerical value in the input signal;
determining an actual output value of the functional block according to the value;
and outputting the actual output value to other functional blocks connected with the functional block through the functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
when the input signal is a first state quality bit or a second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks;
When the input signal is in the first state quality bit or the second state quality bit, any other functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and when the input signal is the first state quality bit or the second state quality bit, calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value.
It should be noted that, user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (10)

1. A default value setting method for a nuclear power plant, the method comprising:
acquiring an input signal of a functional block in a digital control system of the nuclear power station;
determining the quality bit of the input signal according to a preset interval range and a numerical value in the input signal;
and transmitting the quality bit to other functional blocks connected with the functional block.
2. The method of claim 1, wherein said determining the quality bits of the input signal based on the predetermined interval range and the values in the input signal comprises:
and if the numerical value in the input signal is in the preset interval range, determining that the quality bit of the input signal is a first state quality bit.
3. The method according to claim 2, wherein the method further comprises:
and if the numerical value in the input signal is not in the preset interval range, determining the quality bit of the input signal as a second state quality bit.
4. The method according to claim 1, wherein the method further comprises:
acquiring a numerical value in the input signal;
determining an actual output value of the functional block according to the value;
and outputting the actual output value to other functional blocks connected with the functional block through the functional block.
5. The method of claim 2, wherein the function blocks comprise voting function blocks; the method further comprises the steps of:
when the input signal is a first state quality bit or a second state quality bit, the voting functional blocks all transmit the first state quality bit to other functional blocks connected with the voting functional blocks;
When the input signal is in the first state quality bit or the second state quality bit, any other functional block except the voting functional block transmits the quality bit state same as the input signal to other functional blocks connected with any other functional block.
6. The method of claim 4, wherein said determining an actual output value of said function block from said value comprises:
and when the input signal is the first state quality bit or the second state quality bit, calculating the actual output value of the functional block by utilizing a preset algorithm corresponding to the functional block according to the value.
7. A default setting device for a nuclear power plant, the device comprising:
the first acquisition module is used for acquiring input signals of functional blocks in a digital control system of the nuclear power station;
the first determining module is used for determining the quality bit of the input signal according to a preset interval range and the numerical value in the input signal;
and the first transfer module is used for transferring the quality bits to other functional blocks connected with the functional blocks.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
CN202211619596.4A 2022-12-15 2022-12-15 Default value setting method, device, equipment, medium and program product for nuclear power plant Pending CN116189947A (en)

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