CN106448775A - Nuclear power station reactor protection system safety parameter monitoring device and nuclear power station reactor protection system safety parameter monitoring method - Google Patents

Nuclear power station reactor protection system safety parameter monitoring device and nuclear power station reactor protection system safety parameter monitoring method Download PDF

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Publication number
CN106448775A
CN106448775A CN201610848681.6A CN201610848681A CN106448775A CN 106448775 A CN106448775 A CN 106448775A CN 201610848681 A CN201610848681 A CN 201610848681A CN 106448775 A CN106448775 A CN 106448775A
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security parameter
module
parameter
cpu element
calibration
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CN106448775B (en
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朱雯
黎国民
汪富强
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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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
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/008—Man-machine interface, e.g. control room layout
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/04—Safety arrangements
    • G21D3/06—Safety arrangements responsive to faults within the plant
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

The invention discloses a nuclear power station reactor protection system safety parameter monitoring device and a nuclear power station reactor protection system safety parameter monitoring method. The device comprises a safety parameter transceiver module, a safety parameter processing module and an authority setting module, wherein the safety parameter processing module comprises a storage module, a verification module and a modification module. The method comprises acquiring an actual safety parameter, processing the actual safety parameter and setting a display interface. The device and the method are based on a digital reactor protection system and can calibrate a real-time safety parameter, and furthermore can transmit the calibrated parameter to a corresponding CPU unit for operation. Furthermore the display interface is utilized for visually displaying data and understanding the data, thereby performing quick and accurate processing on the parameter, and preventing errors in setting and modification. A parameter modification log is formed, and a parameter modification process can be traced in a log file. Furthermore batch parameter modification can be performed, thereby saving labor and improving operation efficiency.

Description

A kind of nuclear power plant reactor protection system security parameter supervising device and method
Technical field
The present invention relates to computer software fields are and in particular to supervise to a kind of nuclear power plant reactor protection system security parameter Control apparatus and method.
Background technology
The major function of nuclear power plant reactor protection system is under unusual service condition or accident conditions, by shutdown and (or) Start engineered safeguards features, to prevent reactor core and coolant system part from receiving damage, or mitigate its damaged condition, to be protected with this Demonstrate,prove the integrity of three big nuclear safety barriers, it is to avoid cause radioactive substance to escape in a large number, protect personal security, it is to avoid nuclear power plant's week Collarette border is contaminated.And in the reactor protection system of nuclear power station, there is quantity of parameters (such as protection seting value, alarm limit Value, functional generator parameter, filter parameter etc.), they are directly connected to power plant safety and power station economy, survey in system Often it is related to setting and the adjustment of above-mentioned parameter in examination, debugging, operation and maintenance process.
And prior art is all based on the parameter management mode of traditional analog technology, mainly to be entered using manual type The setting of each parameter of row reactor protection system and adjustment, specifically, are come in reactor protection system manually by personnel Parameter is modified, compares, records and is stored, and therefore the level of this parameter management and efficiency depend entirely on the element of attendant Matter, it is primarily present following defect：
1) in execution modification, because the restriction of human body energy, can miss and wrong parameter is submitted to reactor protection system System, is easily caused the generation of significant consequences (such as shutdown, relay fail).
2), under this kind of way to manage, parameter list cannot automatically and AD/LD (LD：Logic Diagram, i.e. logic chart； AD:Analog Diagram, i.e. simulation drawing) show together, therefore, it is not easy to the understanding of attendant and the exhibition directly perceived of parameter Show, and then be easily caused parameter setting mistake；
3) manually cannot carry out batch modification to parameter, lead to inefficiency, and due to there is no parameter modification daily record File, is not easy to parameter modification process is reviewed.
4) no special parameter modification interface, is not easy to the modification of parameter and than equity.
Therefore, it is necessary to provide a kind of special nuclear power plant reactor safety system security parameter supervising device and method Effectively manage above-mentioned security parameter, reach the purpose of concentration, unification, efficiently and safely management parameters.
Content of the invention
For problem in above-mentioned prior art, the invention provides a kind of be based on digitized reactor protection system, can The security parameter of nuclear power station protection system is carried out concentrate, the apparatus and method of unified, efficient, safe online management.
The technical scheme that the present invention proposes with regard to above-mentioned technical problem is as follows：
On the one hand, provide a kind of nuclear power plant reactor protection system security parameter supervising device, for described nuclear power station In reactor protection system, the security parameter of all CPU elements carries out monitor in real time, and described device includes:Security parameter receives and dispatches mould Block and security parameter processing module；
Described security parameter transceiver module, connects described nuclear power plant reactor protection system, obtains nuclear power station for real-time The actual security parameter of each described CPU element send described security parameter processing module in reactor protection system；
Described security parameter processing module, connects described security parameter transceiver module, for each described to received The actual security parameter signal of CPU element is processed, and generates the calibration security parameter signal of corresponding described CPU element, and will Each described calibration security parameter signal passes through to be attached to corresponding described CPU element respectively under described security parameter transceiver module.
Preferably, described security parameter processing module includes：Memory module, authentication module and modified module；
Described memory module connects maintenance terminal, for storing the security parameter preset value of each described CPU element；
Described authentication module connects described memory module and described security parameter transceiver module respectively, for real-time reception by The actual security parameter of each described CPU element of described security parameter transceiver module transmission, and by the described reality being received Security parameter is compared with the security parameter preset value in corresponding described CPU element, and transmits and compare the result；
Described modified module connects described authentication module and security parameter transceiver module respectively, for according to described checking mould The described of block transmission compares the result, using default Rule of judgment, described actual security parameter is corrected, it is right to obtain Answer the calibration security parameter of described CPU element, described calibration security parameter is passed through to be attached under described security parameter transceiver module Corresponding CPU element.
Preferably, also include the display interface that is connected between described memory module and described maintenance terminal, for real-time Show each corresponding all parameter values, and on described display interface, parameter is adjusted and manages；Described maintenance terminal is used In the security parameter preset value presetting each described CPU element, and the security parameter preset value storage by each described CPU element In described memory module, and monitor the actual security parameter values of each described CPU element.
Preferably, it is stored in the school of the corresponding each described CPU element of each security parameter preset value in described memory module Quasi- security parameter, the calibration security parameter of each described CPU element is intended to satisfaction correspondence before operation and is stored in described storage mould Security parameter preset value condition in block.
Preferably, described modified module is also connected with described maintenance terminal, for described calibration security parameter is stored in dimension In shield terminal, and described calibration security parameter is passed through to be attached in corresponding CPU element under described security parameter transceiver module；And Being required to before dress action under each execution will be corresponding with each for the described described calibration security parameter being stored in maintenance terminal Security parameter preset value in CPU is contrasted, if the security parameter that described calibration security parameter meets in each corresponding CPU is pre- If value condition, then execute lower dress process；If described calibration security parameter is unsatisfactory for the security parameter preset value in each corresponding CPU Condition, then calibrate to described calibration security parameter, again until it meets the security parameter preset value in each corresponding CPU Lower dress process is executed again after condition.
Preferably, described modified module includes batch modification module, repaiies for described actual security parameter is carried out with batch Change.
Preferably, described modified module also includes changing daily record formation module, for recording described actual security parameter Calibration process, forms modification daily record.
Preferably, described default Rule of judgment is：
If Δ T(1+τ4s)/(1+τ5s)≥ΔTsetpointSetting valve, then triggering reactor shutdown (2)；
Wherein, in above-mentioned formula (1)：ΔTsetpointSetting valve for overtemperature Δ T shutdown；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is manostat pressure (psig)；
P0For normal operating pressure；
K1For presetting bias；
K2For preset gain, deviate the temperature effects of nuclear boiling ultimate value for compensation；
K3For preset gain, deviate the pressure effect of nuclear boiling ultimate value for compensation；
τ1、τ2It is constant, for the time delay of compensation conduit and instrument；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference；
And
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then triggering reactor shutdown (4)；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' for Over power ΔT shutdown setting valve；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4For presetting bias；
K5For constant, and work as TavgIt is 0 during decline；
K6For constant, and work as TavgLess than Tavg' when be 0；
τ3For Preset Time constant；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference.
Preferably, also include priority assignation module, for arranging interlock function between each described CPU element.
On the other hand, also provide a kind of nuclear power plant reactor protection system security parameter monitoring method, its step includes：
S1, actual security parameter obtain：Setting security parameter transceiver module, connects described nuclear power plant reactor protection system System, the actual security parameter for each described CPU element in real-time acquisition nuclear power plant reactor protection system simultaneously sends institute to State security parameter processing module；
S2, actual security parameter are processed：Setting security parameter processing module, connects described security parameter transceiver module, uses Process in the actual security parameter signal to each described CPU element being received, generate the school of corresponding described CPU element Quasi- security parameter signal, and each described calibration security parameter signal is passed through to be attached under described security parameter transceiver module respectively Corresponding described CPU element.
Preferably, described security parameter processing module includes：Memory module, authentication module and modified module；
Described memory module connects maintenance terminal, and described maintenance terminal is used for presetting the safety ginseng of each described CPU element Number preset value, the security parameter preset value of described for each correspondence CPU element is stored in described memory module, and monitors each The actual security parameter values of described CPU element；
Described authentication module connects described memory module and described security parameter transceiver module respectively, for real-time reception by The actual security parameter of each described CPU element of described security parameter transceiver module transmission, and by the described reality being received Security parameter is compared with the security parameter preset value in corresponding described CPU element, and transmits and compare the result；
Described modified module connects described authentication module and security parameter transceiver module respectively, for according to described checking mould The described of block transmission compares the result, using default Rule of judgment, described actual security parameter is corrected, it is right to obtain Answer the calibration security parameter of described CPU element, described calibration security parameter is passed through to be attached under described security parameter transceiver module Corresponding CPU element, and the security parameter preset value of described memory module memory storage is refreshed simultaneously.
Preferably, S3, display interface setting are also included：Setting display between described memory module and described maintenance terminal Interface, shows each corresponding all parameter values for real-time, and on described display interface, parameter is adjusted and manages.
Preferably, it is stored in the school of the corresponding each described CPU element of each security parameter preset value in described memory module Quasi- security parameter, the calibration security parameter of each described CPU element is intended to satisfaction correspondence before operation and is stored in described storage mould Security parameter preset value condition in block.
Preferably, described modified module is also connected with described maintenance terminal, for described calibration security parameter is stored in dimension In shield terminal, and described calibration security parameter is passed through to be attached in corresponding CPU element under described security parameter transceiver module；And Being required to before dress action under each execution will be corresponding with each for the described described calibration security parameter being stored in maintenance terminal Security parameter preset value in CPU is contrasted, if the security parameter that described calibration security parameter meets in each corresponding CPU is pre- If value condition, then execute lower dress process；If described calibration security parameter is unsatisfactory for the security parameter preset value in each corresponding CPU Condition, then calibrate to described calibration security parameter, again until it meets the security parameter preset value in each corresponding CPU Lower dress process is executed again after condition.
Preferably, described modified module includes batch modification module, repaiies for described actual security parameter is carried out with batch Change.
Preferably, described modified module also includes changing daily record formation module, for recording described actual security parameter Modification process, forms modification daily record.
Preferably, described default Rule of judgment is：
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointSetting valve for overtemperature Δ T shutdown；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is manostat pressure (psig)；
P0For normal operating pressure；
K1For presetting bias；
K2For preset gain, deviate the temperature effects of nuclear boiling ultimate value for compensation；
K3For preset gain, deviate the pressure effect of nuclear boiling ultimate value for compensation；
τ1、τ2It is constant, for the time delay of compensation conduit and instrument；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference；
And
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' for Over power ΔT shutdown setting valve；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4For presetting bias；
K5For constant, and work as TavgIt is 0 during decline；
K6For constant, and work as TavgLess than Tavg' when be 0；
τ3For Preset Time constant；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference.
Preferably, it is respectively provided with interlock function between each described CPU element.
The technique effect that technical solution of the present invention is brought：
1) present invention is based on digitized reactor protection system, and actual time safety parameter can be calibrated, and can high-ranking officers It is attached in corresponding CPU element under parameter after standard and is run, and can enter with the security parameter preset value prestoring Row compares, it is to avoid the generation of correction mistake；
2) AD/LD and parameter can together with show, be easy to display data directly perceived and data understood, it is to avoid setting and Modification mistake；
3) form parameter modification daily record, in journal file, parameter modification process can be reviewed；
4) change script by writing security parameter, the batch modification of line parameter can be entered, save labour force, improve work Efficiency.
5) provide friendly operation interface, be easy to personnel and carry out fast and accurately parameter processing.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is that the structure of the nuclear power plant reactor protection system security parameter supervising device that the embodiment of the present invention one provides is shown It is intended to；
Fig. 2 is the structural representation of the security parameter processing module that the embodiment of the present invention one provides；
Fig. 3 be the embodiment of the present invention one provide each part of nuclear power plant reactor protection system security parameter supervising device it Between annexation schematic diagram；
Fig. 4 is the structural representation of the modified module that the embodiment of the present invention one provides；
Fig. 5 is the step stream of the nuclear power plant reactor protection system security parameter monitoring method that the embodiment of the present invention two provides Cheng Tu；
Specific embodiment
The present invention is directed to present in prior art when nuclear power station safety population parameter is carried out with manual amendment and setting, easily by mistake Wrong parameter is submitted to reactor protection system；Parameter list cannot be shown automatically together with AD/LD, is not easy to safeguard people The understanding of member and the displaying directly perceived of parameter；Manually batch modification cannot be carried out to parameter, lead to inefficiency；There is no parameter Modification journal file, is not easy to parameter modification process is reviewed；No special parameter modification interface, is not easy to repairing of parameter The problems such as change and compare, there is provided one kind is based on digitized reactor protection system, can be to the safety of nuclear power station protection system Parameter carries out concentrating, the apparatus and method of unified, efficient, safe online management.Its core concept is：Based on digitized anti- Answer heap protection system, actual time safety parameter can be calibrated, and can will be attached in corresponding CPU element under the parameter after calibration Run, and can be compared with the security parameter preset value prestoring, it is to avoid the generation of correction mistake；Using aobvious Show that presentation parameter directly perceived is carried out at interface, be easy to display data directly perceived and data is understood, further parameter is carried out quick, accurate True process, it is to avoid setting and modification mistake；Form parameter modification daily record, in journal file, parameter modification process can be carried out Review；Change script by writing security parameter, the batch modification of line parameter can be entered, save labour force, improve work efficiency.
Embodiment one：
Fig. 1 shows the structural representation of nuclear power plant reactor protection system security parameter supervising device, and described device is used Carry out monitor in real time in the security parameter to all CPU elements in described nuclear power plant reactor protection system, it includes:Safety is joined Number transceiver module and security parameter processing module；
Described security parameter transceiver module, connects described nuclear power plant reactor protection system, obtains nuclear power station for real-time The actual security parameter of each described CPU element send described security parameter processing module in reactor protection system；
Described security parameter processing module, connects described security parameter transceiver module, for each described to received The actual security parameter signal of CPU element is processed, and generates the calibration security parameter signal of corresponding described CPU element, and will Each described calibration security parameter signal passes through to be attached to corresponding described CPU element respectively under described security parameter transceiver module.
Because the importance of security parameter, the various operations to security parameter need to define different operating rights, Avoid unnecessary human error.It is therefore preferred that this device also includes priority assignation module, in each described CPU element Between arrange interlock function.Whenever only allow to carry out parameter modification to the CPU of a protection group (or row), it is to avoid simultaneously Parameter modification, the safe action of impact reactor protection system are carried out to the CPU of two and above protection group.
Fig. 2 shows the structural representation of security parameter processing module, and described security parameter processing module includes：Storage mould Block, authentication module and modified module.
Fig. 3 shows the annexation schematic diagram between each part, and specifically, described security parameter transceiver module is connected to Each CPU element (CPU1, CPU2, CPU3...CPUN) in nuclear plant safety protection system, can read and receive each CPU element The each actual security parameter of transmission in real time；
Described memory module connects maintenance terminal, for storing the security parameter preset value of each described CPU element；
Described authentication module connects described memory module and described security parameter transceiver module respectively, for real-time reception by The actual security parameter of each described CPU element of described security parameter transceiver module transmission, and by the described reality being received Security parameter is compared with the security parameter preset value being stored in the corresponding described CPU element in described memory module, and The result is compared in transmission；
Described modified module connects described authentication module and security parameter transceiver module respectively, for according to described checking mould The described of block transmission compares the result, using default Rule of judgment, described actual security parameter is corrected, it is right to obtain Answer the calibration security parameter of described CPU element, when actual suitable, described calibration security parameter is received by described security parameter Send out and be attached to corresponding CPU element under module.
The process that actual security parameter is corrected is：
Just for more complicated △ T in prior artPowerWith △ TTemperatureThe setting valve of defencive function calculates and is ground Study carefully.Because flow reduction causes temperature to rise, parameter therefore related to this is the pressure of major loop flow and major loop, pressure Decline and cause water saturation temperature TsDecline, increased the probability that element wall produces nucleateboiling.But due to above-mentioned △ T parameter Reaction is relatively slow, so reaction parameter in addition auxiliary protection faster also will be measured.
Therefore, also measure the setting valve Δ T of overtemperature Δ T shutdown in the present embodimentsetpointAnd Over power ΔT shutdown Setting valve Δ Tsetpoint' carry out auxiliary protection in addition.Wherein, the setting valve Δ T of overtemperature Δ T shutdownsetpointFor protecting reactor core to exist Nuclear boiling is still deviateed under various pressure, the assembled state of power, coolant temperature and axial power distribution.When reactor transient state with Fluid transient delay from reactor core to hygrosensor is compared when wanting slow, and pressure is between high pressure shutdown and low pressure shutdown When, provide protection by overtemperature Δ T.Shutdown setting valve include the compensation that the density to water changed with temperature with thermal capacity and To the dynamic compensation postponing to the pipeline of loop temperature sensor from reactor core.When reactor axial power Density Distribution is normal, This shutdown limit value always below the safety marginses of reactor core, but when axial power peak value be more than design load when (by power range The difference instruction of portion's detector and bottom detector) reactor shutdown limit value automatically pressed following calculating and reduced.Each loop Two hot-side temperature measurements cooperatively form four Δ T and T with a cold junction temperature measured valueavgSignal.
The Δ T of this shutdownsetpointValue signal of adjusting is carried out continuously calculating by one group of measured temperature in each loop.
Specific formula for calculation is as follows：
If Δ T (1+τ4s)/(1+τ5s)≥ΔTsetpointSetting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointSetting valve for overtemperature Δ T shutdown；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is manostat pressure (psig)；
P0For normal operating pressure；
K1For presetting bias；
K2For preset gain, deviate the temperature effects of nuclear boiling ultimate value for compensation；
K3For preset gain, deviate the pressure effect of nuclear boiling ultimate value for compensation；
τ1、τ2It is constant, for the time delay of compensation conduit and instrument；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference；
The Δ T setting valve of Over power ΔT shutdown be used for providing under overpower operating mode to the protection of fuel integrity,
Limit the scope needing overtemperature Δ T protection and sub- fluence rate shutdown provides standby to power range senior middle school.
The Δ T setting valve of described Over power ΔT shutdown is to each loop Continuous plus.Specific formula for calculation is as follows：
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' for Over power ΔT shutdown setting valve；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4For presetting bias；
K5For constant, and work as TavgIt is 0 during decline；
K6For constant, and work as TavgLess than Tavg' when be 0；
τ3For Preset Time constant；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference.
Further, also include the display interface that is connected between described memory module and described maintenance terminal, for reality When show each corresponding all parameter values, and on described display interface, parameter is adjusted and manages；Described maintenance terminal For presetting the security parameter preset value of each described CPU element, and the security parameter preset value of each described CPU element is deposited Storage it is possible to arrive all of CPU element by safeguarding network access, monitors each described CPU element in described memory module Actual security parameter values.
Described display interface is to make friendly man machine interface exclusively for parameter management, and the personnel that can maintain easily enter line parameter Adjustment and management.And for parameter, corresponding AD/LD and parameter declaration can be shown on interface, the personnel that maintain easily understand The implication of preparation parameter to be changed, it is to avoid possible parameter setting mistake.
It should be noted that it is mono- to be stored in the corresponding each described CPU of each security parameter preset value in described memory module The calibration security parameter of unit, the calibration security parameter of each described CPU element is intended to meet described in corresponding being stored in before operation Security parameter preset value condition in memory module.
Additionally, described modified module is also connected with described maintenance terminal, for described calibration security parameter is stored in maintenance In terminal, and described calibration security parameter is passed through to be attached in corresponding CPU element under described security parameter transceiver module；And It is required to the described described calibration security parameter being stored in maintenance terminal and each corresponding CPU before executing lower dress action every time In security parameter preset value contrasted, if described calibration security parameter meets security parameter in each corresponding CPU and presets Value condition, then execute lower dress process；If described calibration security parameter is unsatisfactory for the security parameter preset value bar in each corresponding CPU Part, then calibrate to described calibration security parameter, again until it meets the security parameter preset value bar in each corresponding CPU Lower dress process is executed again after part.
Described calibration security parameter can be stored in maintenance terminal, treats to be attached in corresponding CPU element under proper moment. It is required to the parameter of storage is carried out with the security parameter preset value condition in each corresponding CPU before dress action under each execution Contrast, compares both differences item by item, to confirm the correctness of parameter modification with this, and avoid introducing unnecessary parameter Modification.
And maintenance terminal is the computer based on LINUX, its task is that whole Digital Reactor Protection System is entered Row Project Configuration, maintenance, realize dynamic and static parameter modification task
Fig. 4 shows the structural representation of modified module, and it includes batch modification module, for joining to described actual safety Number carries out batch modification.Change script by writing with operational factor, be easy to carry out batch modification to parameter, can directly alleviate The workload of attendant.
Described modified module also includes changing daily record formation module, for recording the calibration of described actual security parameter Journey, forms modification daily record so that the process of parameter modification all can be reviewed in journal file.
Fig. 5 shows the flow chart of steps of nuclear power plant reactor protection system security parameter monitoring method, and its step includes：
S1, actual security parameter obtain：Setting security parameter transceiver module, connects described nuclear power plant reactor protection system System, the actual security parameter for each described CPU element in real-time acquisition nuclear power plant reactor protection system simultaneously sends institute to State security parameter processing module；
S2, actual security parameter are processed：Setting security parameter processing module, connects described security parameter transceiver module, uses Process in the actual security parameter signal to each described CPU element being received, generate the school of corresponding described CPU element Quasi- security parameter signal, and each described calibration security parameter signal is passed through to be attached under described security parameter transceiver module respectively Corresponding described CPU element.
Further, S3, display interface setting are also included：Arrange aobvious between described memory module and described maintenance terminal Show interface, show each corresponding all parameter values for real-time, and on described display interface, parameter is adjusted and manages.
Likewise, being respectively provided with interlock function between each described CPU element.
Wherein, the annexation between the composition of described security parameter processing module and modified module, each module, each mould The operating mechanism of block is all identical with embodiment one with function.
In sum, the present invention is based on digitized reactor protection system, can carry out school to actual time safety parameter Standard, and can be run being attached in corresponding CPU element under the parameter after calibration, and can be with the safety ginseng prestoring Number preset value is compared, and root avoids correcting the generation of mistake；Using display interface presentation parameter directly perceived, it is easy to intuitively show Data and data is understood, is fast and accurately processed to parameter further, it is to avoid setting and modification mistake；Formed Parameter modification daily record, can review to parameter modification process in journal file；Change script by writing security parameter, can To enter the batch modification of line parameter, save labour force, improve work efficiency.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can pass through hardware To complete it is also possible to the hardware being instructed correlation by program is completed, described program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read only memory, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.

Claims (18)

1. a kind of nuclear power plant reactor protection system security parameter supervising device, for described nuclear power plant reactor protection system The security parameter of interior all CPU elements carries out monitor in real time it is characterised in that described device includes:Security parameter transceiver module With security parameter processing module；
Described security parameter transceiver module, connects described nuclear power plant reactor protection system, obtains nuclear power station reaction for real-time The actual security parameter of each described CPU element send described security parameter processing module in heap protection system；
Described security parameter processing module, connects described security parameter transceiver module, for mono- to each described CPU being received The actual security parameter signal of unit is processed, and generates the calibration security parameter signal of corresponding described CPU element, and by each institute State calibration security parameter signal and pass through to be attached to corresponding described CPU element respectively under described security parameter transceiver module.
2. security parameter supervising device according to claim 1 is it is characterised in that described security parameter processing module bag Include：Memory module, authentication module and modified module；
Described memory module connects maintenance terminal, for storing the security parameter preset value of each described CPU element；
Described authentication module connects described memory module and described security parameter transceiver module respectively, for real-time reception by described The actual security parameter of each described CPU element of security parameter transceiver module transmission, and by the described actual safety being received Parameter is compared with the security parameter preset value in corresponding described CPU element, and transmits and compare the result；
Described modified module connects described authentication module and security parameter transceiver module respectively, for being passed according to described authentication module Send described compare the result, using default Rule of judgment, described actual security parameter is corrected, obtains corresponding institute State the calibration security parameter of CPU element, described calibration security parameter is attached to correspondence by under described security parameter transceiver module CPU element.
3. according to claim 2 security parameter supervising device it is characterised in that also include be connected to described memory module and Display interface between described maintenance terminal, shows each corresponding all parameter values for real-time, and on described display interface Parameter is adjusted and manages；Described maintenance terminal is used for presetting the security parameter preset value of each described CPU element, and will The security parameter preset value of each described CPU element is stored in described memory module, and monitors the reality of each described CPU element Border security parameter values.
4. security parameter supervising device according to claim 3 is it is characterised in that be stored in each in described memory module The calibration security parameter of the corresponding each described CPU element of security parameter preset value, the calibration security parameter of each described CPU element It is intended to meet the security parameter preset value condition that correspondence is stored in described memory module before operation.
5. security parameter supervising device according to claim 2 is it is characterised in that described modified module is also connected with described dimension Shield terminal, for being stored in described calibration security parameter in maintenance terminal, and by described calibration security parameter by described peace It is attached in corresponding CPU element under population parameter transceiver module；And be required to be stored in described before dress action under each execution Described calibration security parameter in maintenance terminal is contrasted with the security parameter preset value in each corresponding CPU, if described school Quasi- security parameter meets the security parameter preset value condition in each corresponding CPU, then execute lower dress process；If described calibration safety Parameter is unsatisfactory for the security parameter preset value condition in each corresponding CPU, then again described calibration security parameter is calibrated, Lower dress process is executed again meet the security parameter preset value condition in each corresponding CPU up to it after.
6. security parameter supervising device according to claim 2 is it is characterised in that described modified module includes batch modification Module, for carrying out batch modification to described actual security parameter.
7. security parameter supervising device according to claim 2 is it is characterised in that described modified module also includes changing day Will forms module, for recording the calibration process of described actual security parameter, forms modification daily record.
8. security parameter supervising device according to claim 2 is it is characterised in that described default Rule of judgment is：
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointSetting valve for overtemperature Δ T shutdown；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is manostat pressure (psig)；
P0For normal operating pressure；
K1For presetting bias；
K2For preset gain, deviate the temperature effects of nuclear boiling ultimate value for compensation；
K3For preset gain, deviate the pressure effect of nuclear boiling ultimate value for compensation；
τ1、τ2It is constant, for the time delay of compensation conduit and instrument；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference；
And
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' for Over power ΔT shutdown setting valve；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4For presetting bias；
K5For constant, and work as TavgIt is 0 during decline；
K6For constant, and work as TavgLess than Tavg' when be 0；
τ3For Preset Time constant；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference.
9. security parameter supervising device according to claim 1, it is characterised in that also including priority assignation module, is used for Interlock function is set between each described CPU element.
10. a kind of nuclear power plant reactor protection system security parameter monitoring method is it is characterised in that step includes：
S1, actual security parameter obtain：Setting security parameter transceiver module, connects described nuclear power plant reactor protection system, uses Obtain in nuclear power plant reactor protection system the actual security parameter of each described CPU element and send described safety in real-time Parameter processing module；
S2, actual security parameter are processed：Setting security parameter processing module, connects described security parameter transceiver module, for right The actual security parameter signal of each described CPU element being received is processed, and generates the calibration peace of corresponding described CPU element Population parameter signal, and each described calibration security parameter signal is attached to correspondence by under described security parameter transceiver module respectively Described CPU element.
11. methods as claimed in claim 10 are it is characterised in that described security parameter processing module includes：Memory module, tests Card module and modified module；
Described memory module connects maintenance terminal, and the security parameter that described maintenance terminal is used for presetting each described CPU element is pre- If value, the security parameter preset value of described for each correspondence CPU element is stored in described memory module, and monitors each described The actual security parameter values of CPU element；
Described authentication module connects described memory module and described security parameter transceiver module respectively, for real-time reception by described The actual security parameter of each described CPU element of security parameter transceiver module transmission, and by the described actual safety being received Parameter is compared with the security parameter preset value in corresponding described CPU element, and transmits and compare the result；
Described modified module connects described authentication module and security parameter transceiver module respectively, for being passed according to described authentication module Send described compare the result, using default Rule of judgment, described actual security parameter is corrected, obtains corresponding institute State the calibration security parameter of CPU element, described calibration security parameter is attached to correspondence by under described security parameter transceiver module CPU element, and the security parameter preset value of described memory module memory storage is refreshed simultaneously.
12. methods as claimed in claim 10 are it is characterised in that also include S3, display interface setting：
Display interface is set between described memory module and described maintenance terminal, shows each corresponding all parameters for real-time Value, and on described display interface, parameter is adjusted and manages.
13. methods as claimed in claim 11 are preset it is characterised in that being stored in each security parameter in described memory module The calibration security parameter of the corresponding each described CPU element of value, the calibration security parameter of each described CPU element is intended to before operation Meet correspondence and be stored in the security parameter preset value condition in described memory module.
14. methods as claimed in claim 11, it is characterised in that described modified module is also connected with described maintenance terminal, are used for Described calibration security parameter is stored in maintenance terminal, and described calibration security parameter is passed through described security parameter and receive and dispatch mould It is attached in corresponding CPU element under block；And be required to be stored in described in maintenance terminal before dress action under each execution Described calibration security parameter is contrasted with the security parameter preset value in each corresponding CPU, if described calibration security parameter is full Security parameter preset value condition in each corresponding CPU of foot, then execute lower dress process；If described calibration security parameter is unsatisfactory for often Security parameter preset value condition in one corresponding CPU, then calibrate to described calibration security parameter, again until it meets often Lower dress process is executed again after security parameter preset value condition in one corresponding CPU.
15. security parameter supervising devices according to claim 11 are it is characterised in that described modified module includes repairing in batches Change module, for batch modification is carried out to described actual security parameter.
16. security parameter supervising devices according to claim 11 are it is characterised in that described modified module also includes changing Daily record forms module, for recording the modification process of described actual security parameter, forms modification daily record.
17. methods as claimed in claim 11 it is characterised in that it is characterized in that, described default Rule of judgment is：
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointSetting valve for overtemperature Δ T shutdown；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is manostat pressure (psig)；
P0For normal operating pressure；
K1For presetting bias；
K2For preset gain, deviate the temperature effects of nuclear boiling ultimate value for compensation；
K3For preset gain, deviate the pressure effect of nuclear boiling ultimate value for compensation；
τ1、τ2It is constant, for the time delay of compensation conduit and instrument；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference；
And
If Δ T is (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' for Over power ΔT shutdown setting valve；
Δ T is the temperature being recorded by resistance thermometer；
ΔT0It is the temperature of instruction under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4For presetting bias；
K5For constant, and work as TavgIt is 0 during decline；
K6For constant, and work as TavgLess than Tavg' when be 0；
τ3For Preset Time constant；
τ4、τ5It is constant, for the lead-lag compensation to Δ T；
S is Laplace transform operator；
Function for top and bottom ionization chamber neutron fluence rate signal difference.
18. security parameter supervising devices according to claim 10 are it is characterised in that be all provided between each described CPU element Put interlock function.
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