CN106448775B - A kind of nuclear power plant reactor protection system security parameter monitoring device and method - Google Patents

A kind of nuclear power plant reactor protection system security parameter monitoring device and method Download PDF

Info

Publication number
CN106448775B
CN106448775B CN201610848681.6A CN201610848681A CN106448775B CN 106448775 B CN106448775 B CN 106448775B CN 201610848681 A CN201610848681 A CN 201610848681A CN 106448775 B CN106448775 B CN 106448775B
Authority
CN
China
Prior art keywords
security parameter
module
parameter
cpu element
calibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610848681.6A
Other languages
Chinese (zh)
Other versions
CN106448775A (en
Inventor
朱雯
黎国民
汪富强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
Original Assignee
China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China General Nuclear Power Corp, China Nuclear Power Engineering Co Ltd filed Critical China General Nuclear Power Corp
Priority to CN201610848681.6A priority Critical patent/CN106448775B/en
Publication of CN106448775A publication Critical patent/CN106448775A/en
Application granted granted Critical
Publication of CN106448775B publication Critical patent/CN106448775B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Landscapes

  • 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

Include security parameter transceiver module, security parameter processing module with priority assignation module the invention discloses a kind of nuclear power plant reactor protection system security parameter monitoring device and method, device；Wherein security parameter processing module has including memory module, authentication module and modified module；Method includes that practical security parameter obtains, the processing of practical security parameter and display interface are arranged.The present invention is based on digitized reactor protection systems, can be calibrated to actual time safety parameter, and can be run being attached in corresponding CPU element under the parameter after calibration；Understood simultaneously convenient for intuitive display data and to data come presentation parameter using display interface, fast and accurately to handle parameter, avoids being arranged and changing mistake；It forms parameter and changes daily record, parameter modification process can be traced in journal file；The batch modification of parameter can also be carried out, labour is saved, improves working efficiency.

Description

A kind of nuclear power plant reactor protection system security parameter monitoring device and method
Technical field
The present invention relates to computer software fields, and in particular to a kind of nuclear power plant reactor protection system security parameter prison Control apparatus and method.
Background technology
The major function of nuclear power plant reactor protection system be under unusual service condition or accident conditions, by shutdown and (or) Start engineered safeguards features, to prevent reactor core and coolant system component from receiving damage, or mitigate its damaged condition, is protected with this The integrality for demonstrate,proving three big nuclear safety barriers, avoids that radioactive substance is caused largely to escape, and protection staff safety avoids nuclear power plant all Collarette border is contaminated.And there are quantity of parameters (such as protection seting value, alarm limits in the reactor protection system of nuclear power station Value, function generator parameter, filter parameter etc.), they are directly related to power plant safety and power station economy, are surveyed in system Often it is related to the setting and 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 using manual type come into The setting and adjustment of each parameter of row reactor protection system, specifically, by personnel manually come in reactor protection system Parameter is modified, compares, records and is stored, therefore the level and efficiency of the parameter management depend entirely on the element of maintenance personnel Matter is primarily present following defect：
1) when executing modification, because of the limitation of human body energy, it can miss and the parameter of mistake is submitted into reactor protection system System, is easy to cause the generation of significant consequences (such as shutdown, relay fail).
2) under this kind of way to manage, parameter list can not automatically with AD/LD (LD：Logic Diagram, i.e. logic chart； AD:Analog Diagram, i.e. simulation drawing) it shows together, therefore, it is not easy to the understanding of maintenance personnel and the intuitive exhibition of parameter Show, and then is easy to cause parameter setting mistake；
3) can not manually batch modification be carried out to parameter, lead to inefficiency, and due to not having parameter to change daily record File is not easy to trace parameter modification process.
4) interface is changed without special parameter, 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 monitoring device and method Effectively manage above-mentioned security parameter, achieve the purpose that concentration, uniformly, efficiently and safely management parameters.
Invention content
Middle problem for the above-mentioned prior art, the present invention provides one kind being based on digitized reactor protection system, can To nuclear power station protect system security parameter concentrated, uniformly, efficiently, safety online management device and method.
The technical solution that the present invention is proposed with regard to above-mentioned technical problem is as follows：
On the one hand, a kind of nuclear power plant reactor protection system security parameter monitoring device is provided, for the nuclear power station The security parameter of all CPU elements is monitored in real time in reactor protection system, and described device includes:Security parameter receives and dispatches mould Block and security parameter processing module；
The security parameter transceiver module connects the nuclear power plant reactor protection system, for obtaining nuclear power station in real time The practical security parameter of each CPU element and the security parameter processing module is sent in reactor protection system；
The security parameter processing module connects the security parameter transceiver module, for each described to what is received The practical security parameter signal of CPU element is handled, and generates the calibration security parameter signal of the corresponding CPU element, and will Each calibration security parameter signal is respectively by being attached to the corresponding CPU element under the security parameter transceiver module.
Preferably, the security parameter processing module includes：Memory module, authentication module and modified module；
The memory module connects maintenance terminal, the security parameter preset value for storing each CPU element；
The authentication module is separately connected the memory module and the security parameter transceiver module, for real-time reception by The practical security parameter of each CPU element of the security parameter transceiver module transmission, and the reality that will be received Security parameter is compared with the security parameter preset value in the corresponding CPU element, and is transmitted and compared verification result；
The modified module is separately connected the authentication module and security parameter transceiver module, for according to the verification mould The relatively verification result of block transmission, is corrected the practical security parameter using preset Rule of judgment, obtains pair The calibration security parameter for answering the CPU element, by the calibration security parameter by being attached under the security parameter transceiver module Corresponding CPU element.
Preferably, further include the display interface being connected between the memory module and the maintenance terminal, for real-time It shows each corresponding all parameter values, and parameter is adjusted and is managed on the display interface；The maintenance terminal is used It is stored in the security parameter preset value for presetting each CPU element, and by the security parameter preset value of each CPU element In the memory module, and monitor the practical security parameter values of each CPU element.
Preferably, it is stored in the school that each security parameter preset value in the memory module corresponds to each CPU element Quasi- security parameter, the calibration security parameter of each CPU element are intended to satisfaction correspondence before operation and are stored in the storage mould Security parameter preset value condition in block.
Preferably, the modified module is also connected with the maintenance terminal, for the calibration security parameter to be stored in dimension It protects in terminal, and by the calibration security parameter by being attached in corresponding CPU element under the security parameter transceiver module；And Be required to before dress action under each execute by the calibration security parameter being stored in maintenance terminal with it is each corresponding Security parameter preset value in CPU is compared, if the security parameter that the calibration security parameter meets in each corresponding CPU is pre- If the condition of value, then lower dress process is executed；If the calibration security parameter is unsatisfactory for the security parameter preset value in each corresponding CPU Condition then again calibrates the calibration security parameter, until it meets the security parameter preset value in each corresponding CPU Lower dress process is executed after condition again.
Preferably, the modified module includes batch modification module, is repaiied for carrying out batch to the practical security parameter Change.
Preferably, the modified module further includes that modification daily record forms module, for recording the practical security parameter Calibration process forms modification daily record.
Preferably, the preset Rule of judgment is：
If Δ T(1+τ4s)/(1+τ5s)≥ΔTsetpointSetting valve then triggers reactor shutdown (2)；
Wherein, in above-mentioned formula (1)：ΔTsetpointFor the setting valve of overtemperature Δ T shutdowns；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is voltage-stablizer pressure (psig)；
P0For normal operation pressure；
K1To preset bias；
K2For preset gain, the temperature effect for compensating deviation nuclear boiling limiting value；
K3For preset gain, the pressure effect for compensating deviation nuclear boiling limiting value；
τ1、τ2It is constant, is used 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference；
And
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown (4)；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' be Over power ΔT shutdown setting valve；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4To preset bias；
K5For constant, and work as TavgIt is 0 when 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference.
Preferably, further include priority assignation module, for interlock function to be arranged between each CPU element.
On the other hand, a kind of nuclear power plant reactor protection system security parameter monitoring method is also provided, step includes：
S1, practical security parameter obtain：Security parameter transceiver module is set, nuclear power plant reactor protection system is connected System, for obtaining the practical security parameter of each CPU element in nuclear power plant reactor protection system in real time and sending institute to State security parameter processing module；
S2, the processing of practical security parameter：Security parameter processing module is set, the security parameter transceiver module is connected, is used It is handled in the practical security parameter signal of each CPU element to being received, generates the school of the corresponding CPU element Quasi- security parameter signal, and by each calibration security parameter signal respectively by being attached under the security parameter transceiver module The corresponding CPU element.
Preferably, the security parameter processing module includes：Memory module, authentication module and modified module；
The memory module connects maintenance terminal, and the maintenance terminal is used to preset the safety ginseng of each CPU element Number preset value, the security parameter preset value of each correspondence CPU element is stored in the memory module, and is monitored each The practical security parameter values of the CPU element；
The authentication module is separately connected the memory module and the security parameter transceiver module, for real-time reception by The practical security parameter of each CPU element of the security parameter transceiver module transmission, and the reality that will be received Security parameter is compared with the security parameter preset value in the corresponding CPU element, and is transmitted and compared verification result；
The modified module is separately connected the authentication module and security parameter transceiver module, for according to the verification mould The relatively verification result of block transmission, is corrected the practical security parameter using preset Rule of judgment, obtains pair The calibration security parameter for answering the CPU element, by the calibration security parameter by being attached under the security parameter transceiver module Corresponding CPU element, and the security parameter preset value stored in the memory module is refreshed simultaneously.
Preferably, further include S3, display interface setting：Display is set between the memory module and the maintenance terminal Interface is used for each corresponding all parameter values of real-time display, and parameter is adjusted and is managed on the display interface.
Preferably, it is stored in the school that each security parameter preset value in the memory module corresponds to each CPU element Quasi- security parameter, the calibration security parameter of each CPU element are intended to satisfaction correspondence before operation and are stored in the storage mould Security parameter preset value condition in block.
Preferably, the modified module is also connected with the maintenance terminal, for the calibration security parameter to be stored in dimension It protects in terminal, and by the calibration security parameter by being attached in corresponding CPU element under the security parameter transceiver module；And Be required to before dress action under each execute by the calibration security parameter being stored in maintenance terminal with it is each corresponding Security parameter preset value in CPU is compared, if the security parameter that the calibration security parameter meets in each corresponding CPU is pre- If the condition of value, then lower dress process is executed；If the calibration security parameter is unsatisfactory for the security parameter preset value in each corresponding CPU Condition then again calibrates the calibration security parameter, until it meets the security parameter preset value in each corresponding CPU Lower dress process is executed after condition again.
Preferably, the modified module includes batch modification module, is repaiied for carrying out batch to the practical security parameter Change.
Preferably, the modified module further includes that modification daily record forms module, for recording the practical security parameter Modification process forms modification daily record.
Preferably, the preset Rule of judgment is：
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve then triggers reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointFor the setting valve of overtemperature Δ T shutdowns；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is voltage-stablizer pressure (psig)；
P0For normal operation pressure；
K1To preset bias；
K2For preset gain, the temperature effect for compensating deviation nuclear boiling limiting value；
K3For preset gain, the pressure effect for compensating deviation nuclear boiling limiting value；
τ1、τ2It is constant, is used 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference；
And
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' be Over power ΔT shutdown setting valve；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4To preset bias；
K5For constant, and work as TavgIt is 0 when 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference.
Preferably, it is respectively provided with interlock function between each CPU element.
The technique effect that technical solution of the present invention is brought：
1) the present invention is based on digitized reactor protection systems, can be calibrated to actual time safety parameter, and can high-ranking officers Be attached in corresponding CPU element and run under parameter after standard, and can with pre-stored security parameter preset value into Row compares, and avoids the generation of correction mistake；
2) AD/LD can be shown together with parameter, be understood convenient for intuitive display data and to data, avoid setting and Change mistake；
3) it forms parameter and changes daily record, parameter modification process can be traced in journal file；
4) script is changed by writing security parameter, the batch modification of parameter can be carried out, save labour, improve work Efficiency.
5) friendly operation interface is provided, fast and accurately parameter processing is carried out convenient for personnel.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is that the structure for the nuclear power plant reactor protection system security parameter monitoring device that the embodiment of the present invention one provides is shown It is intended to；
Fig. 2 is the structural schematic diagram for the security parameter processing module that the embodiment of the present invention one provides；
Fig. 3 be the nuclear power plant reactor protection system security parameter monitoring device each component that provides of the embodiment of the present invention one it Between connection relationship diagram；
Fig. 4 is the structural schematic diagram for the modified module that the embodiment of the present invention one provides；
The step of Fig. 5 is nuclear power plant reactor protection system security parameter monitoring method provided by Embodiment 2 of the present invention is flowed Cheng Tu；
Specific implementation mode
The present invention for it is existing in the prior art to nuclear power station safety population parameter carry out manual amendment and setting when, easily accidentally The parameter of mistake is submitted into reactor protection system；Parameter list can not be shown together with AD/LD automatically, be not easy to safeguard people The intuitive displaying of the understanding and parameter of member；Can not manually batch modification be carried out to parameter, lead to inefficiency；There is no parameter Journal file is changed, is not easy to trace parameter modification process；No special parameter changes interface, is not easy to repairing for parameter The problems such as changing and comparing provides one kind and being based on digitized reactor protection system, and the safety of system can be protected to nuclear power station Parameter concentrated, uniformly, efficiently, the device and method of the online management of safety.Its core concept is：Based on digitized anti- It answers heap to protect system, actual time safety parameter can be calibrated, and can will be attached in corresponding CPU element under the parameter after calibration It is run, and can be compared with pre-stored security parameter preset value, avoid the generation of correction mistake；Using aobvious Show that intuitive presentation parameter is carried out at interface, understand convenient for intuitive display data and to data, further parameter is carried out quick, accurate True processing avoids being arranged and changing mistake；It forms parameter and changes daily record, parameter modification process can be carried out in journal file Retrospect；Script is changed by writing security parameter, the batch modification of parameter can be carried out, save labour, improve working efficiency.
Embodiment one：
Fig. 1 shows that the structural schematic diagram of nuclear power plant reactor protection system security parameter monitoring device, described device are used The security parameter of all CPU elements monitors in real time in the nuclear power plant reactor protection system comprising:Safety ginseng Number transceiver module and security parameter processing module；
The security parameter transceiver module connects the nuclear power plant reactor protection system, for obtaining nuclear power station in real time The practical security parameter of each CPU element and the security parameter processing module is sent in reactor protection system；
The security parameter processing module connects the security parameter transceiver module, for each described to what is received The practical security parameter signal of CPU element is handled, and generates the calibration security parameter signal of the corresponding CPU element, and will Each calibration security parameter signal is respectively by being attached to the corresponding CPU element under the security parameter transceiver module.
Because of the importance of security parameter, the various operations of security parameter are needed to define different operating rights, Avoid unnecessary human error.It is therefore preferred that the device further includes priority assignation module, in each CPU element Between interlock function is set.Whenever only allow the CPU to a protection group (or row) to carry out parameter modification, avoids simultaneously Parameter modification is carried out to the CPU of two or more protection group, influences the safe action of reactor protection system.
Fig. 2 shows the structural schematic diagram of security parameter processing module, the security parameter processing module includes：Store mould Block, authentication module and modified module.
Fig. 3 shows the connection relationship diagram between each component, specifically, the security parameter transceiver module is connected to Each CPU element (CPU1, CPU2, CPU3...CPUN) in nuclear power station safety full guard system, can be read and receive each CPU element Each practical security parameter transmitted in real time；
The memory module connects maintenance terminal, the security parameter preset value for storing each CPU element；
The authentication module is separately connected the memory module and the security parameter transceiver module, for real-time reception by The practical security parameter of each CPU element of the security parameter transceiver module transmission, and the reality that will be received Security parameter is compared with the security parameter preset value being stored in the corresponding CPU element in the memory module, and Verification result is compared in transmission；
The modified module is separately connected the authentication module and security parameter transceiver module, for according to the verification mould The relatively verification result of block transmission, is corrected the practical security parameter using preset Rule of judgment, obtains pair The calibration security parameter for answering the CPU element is received the calibration security parameter by the security parameter when practical suitable It is attached to corresponding CPU element under hair module.
It is to the corrected process of practical security parameter：
In the prior art just for more complicated △ TPowerWith △ TTemperatureThe setting valve calculating of defencive function is ground Study carefully.Because flow decline causes temperature rise, therefore parameter related to this is the pressure of major loop flow and major loop, pressure Decline the saturation temperature T for causing watersDecline, increases the probability that element wall surface generates nucleateboiling.But due to above-mentioned △ T parameters Reaction is slower, so also to measure the faster parameter of reaction is subject to auxiliary protection.
Therefore, the setting valve Δ T of overtemperature Δ T shutdowns is also measured in the present embodimentsetpointAnd Over power ΔT shutdown Setting valve Δ Tsetpoint' it is subject to auxiliary protection.Wherein, the setting valve Δ T of overtemperature Δ T shutdownssetpointFor protecting reactor core to exist Still deviate nuclear boiling under various pressure, power, coolant temperature and the assembled state of axial power distribution.When reactor transient state with Fluid transient delay from reactor core to hygrosensor is compared to 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 of water is changed with temperature with thermal capacity and Dynamic compensation to postponing from reactor core to the pipeline of loop temperature sensor.When reactor axial power Density Distribution is normal, The shutdown limit value is always in the safety margins of reactor core hereinafter, but when axial power peak value is more than design value (by power range The difference of portion's detector and lower part detector indicates) reactor shutdown limit value will press following calculating automatically and reduce.Each circuit Two hot-side temperatures are measured cooperatively forms four Δs T and T with a cold junction temperature measured valueavgSignal.
The Δ T of this shutdownsetpointIt adjusts value signal and is carried out continuously calculating by one group of measured temperature in each circuit.
Specific formula for calculation is as follows：
If Δ T (1+τ4s)/(1+τ5s)≥ΔTsetpointSetting valve then triggers reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointFor the setting valve of overtemperature Δ T shutdowns；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is voltage-stablizer pressure (psig)；
P0For normal operation pressure；
K1To preset bias；
K2For preset gain, the temperature effect for compensating deviation nuclear boiling limiting value；
K3For preset gain, the pressure effect for compensating deviation nuclear boiling limiting value；
τ1、τ2It is constant, is used 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference；
The Δ T setting valves of Over power ΔT shutdown be used to provide protection under overpower operating mode to fuel integrality,
Limitation needs the range of overtemperature Δ T protections and provides standby to the sub- fluence rate shutdown of power range senior middle school.
The Δ T setting valves of the Over power ΔT shutdown are to each circuit Continuous plus.Specific formula for calculation is as follows：
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' be Over power ΔT shutdown setting valve；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4To preset bias；
K5For constant, and work as TavgIt is 0 when 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；
For the function on top and lower part ionisation chamber neutron fluence rate signal difference.
Further, further include the display interface being connected between the memory module and the maintenance terminal, for real When show each corresponding all parameter values, and parameter is adjusted and is managed on the display interface；The maintenance terminal Security parameter preset value for presetting each CPU element, and the security parameter preset value of each CPU element is deposited Storage can monitor each CPU element in the memory module by safeguarding that all CPU elements are accessed in network Practical security parameter values.
The display interface is that friendly man-machine interface is made exclusively for parameter management, can maintain easily personnel and carry out parameter Adjustment and management.And it can be that parameter shows corresponding AD/LD and parameter declaration on interface, maintain easily personnel's understanding The meaning for preparing the parameter to be changed, avoids possible parameter setting mistake.
It should be noted that being stored in each security parameter preset value in the memory module, to correspond to each CPU mono- The calibration security parameter of member, the calibration security parameter of each CPU element are intended to meet described in corresponding be stored in before operation Security parameter preset value condition in memory module.
In addition, the modified module is also connected with the maintenance terminal, for the calibration security parameter to be stored in maintenance In terminal, and by the calibration security parameter by being attached in corresponding CPU element under the security parameter transceiver module；And It is required to the calibration security parameter being stored in maintenance terminal and each corresponding CPU before executing lower dress action every time In security parameter preset value compared, if to meet the security parameter in each corresponding CPU default for the calibration security parameter Value condition then executes lower dress process；If the calibration security parameter is unsatisfactory for the security parameter preset value item in each corresponding CPU Part then again calibrates the calibration security parameter, until it meets the security parameter preset value item in each corresponding CPU Lower dress process is executed after part again.
The calibration security parameter can be stored in maintenance terminal, wait for being attached under proper moment in corresponding CPU element. It is required to carry out the parameter of storage with the security parameter preset value condition in each corresponding CPU before dress action under each execute The differences of the two are compared in comparison item by item, and the correctness of parameter modification is confirmed with this, and avoid introducing unnecessary parameter Modification.
And maintenance terminal is the computer based on LINUX, task be to entire Digital Reactor Protection System into Row Project Configuration is safeguarded, realizes that dynamic and static parameter change task
Fig. 4 shows the structural schematic diagram of modified module comprising batch modification module, for the practical safety ginseng Number carries out batch modification.Script is changed with operating parameter by writing, convenient for carrying out batch modification to parameter, can directly be alleviated The workload of maintenance personnel.
The modified module further includes that modification daily record forms module, the calibration for recording the practical security parameter Journey forms modification daily record so that the process of parameter modification can be traced in journal file.
Fig. 5 shows that the step flow chart of nuclear power plant reactor protection system security parameter monitoring method, step include：
S1, practical security parameter obtain：Security parameter transceiver module is set, nuclear power plant reactor protection system is connected System, for obtaining the practical security parameter of each CPU element in nuclear power plant reactor protection system in real time and sending institute to State security parameter processing module；
S2, the processing of practical security parameter：Security parameter processing module is set, the security parameter transceiver module is connected, is used It is handled in the practical security parameter signal of each CPU element to being received, generates the school of the corresponding CPU element Quasi- security parameter signal, and by each calibration security parameter signal respectively by being attached under the security parameter transceiver module The corresponding CPU element.
Further, further include S3, display interface setting：It is arranged between the memory module and the maintenance terminal aobvious Show interface, is used for each corresponding all parameter values of real-time display, and parameter is adjusted and is managed on the display interface.
Likewise, being respectively provided with interlock function between each CPU element.
Wherein, the forming of the security parameter processing module and modified module, the connection relation between each module, each mould The operating mechanism and function of block are identical with embodiment one.
In conclusion the present invention is based on based on digitized reactor protection system, school can be carried out to actual time safety parameter Standard, and can be run being attached in corresponding CPU element under the parameter after calibration, and can join with pre-stored safety Number preset value is compared, and root avoids the generation of correction mistake；Using display interface come intuitive presentation parameter, convenient for intuitive displaying Data and data are understood, further parameter is fast and accurately handled, avoids being arranged and changing mistake；It is formed Parameter changes daily record, can be traced to parameter modification process in journal file；Script is changed by writing security parameter, it can To carry out the batch modification of parameter, labour is saved, improves working efficiency.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware It completes, relevant hardware can also be instructed to complete by program, the 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 merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (18)

1. a kind of nuclear power plant reactor protects system security parameter monitoring device, for protecting system to the nuclear power plant reactor The security parameter of interior all CPU elements is monitored in real time, which is characterized in that described device includes:Security parameter transceiver module With security parameter processing module；
The security parameter transceiver module connects the nuclear power plant reactor protection system, for obtaining nuclear power station reaction in real time The practical security parameter of each CPU element and the security parameter processing module is sent in heap protection system；
The security parameter processing module connects the security parameter transceiver module, for each CPU received is mono- The practical security parameter signal of member is compared with the security parameter preset value of pre-stored each CPU element, is generated The calibration security parameter signal of the corresponding CPU element, and each calibration security parameter signal is passed through into the peace respectively The corresponding CPU element is attached under population parameter transceiver module.
2. security parameter monitoring device according to claim 1, which is characterized in that the security parameter processing module packet It includes：Memory module, authentication module and modified module；
The memory module connects maintenance terminal, the security parameter preset value for storing each CPU element；
The authentication module is separately connected the memory module and the security parameter transceiver module, for real-time reception by described The practical security parameter of each CPU element of security parameter transceiver module transmission, and the practical safety that will be received Parameter is compared with the security parameter preset value in the corresponding CPU element, and is transmitted and compared verification result；
The modified module is separately connected the authentication module and security parameter transceiver module, for being passed according to the authentication module The relatively verification result sent, is corrected the practical security parameter using preset Rule of judgment, obtains corresponding institute The calibration security parameter for stating CPU element, by the calibration security parameter by being attached to correspondence under the security parameter transceiver module CPU element.
3. security parameter monitoring device according to claim 2, which is characterized in that further include be connected to the memory module and Display interface between the maintenance terminal is used for each corresponding all parameter values of real-time display, and on the display interface Parameter is adjusted and is managed；The maintenance terminal is used to preset the security parameter preset value of each CPU element, and will The security parameter preset value of each CPU element is stored in the memory module, and monitors the reality of each CPU element Border security parameter values.
4. security parameter monitoring device according to claim 3, which is characterized in that be stored in each in the memory module Security parameter preset value corresponds to the calibration security parameter of each CPU element, the calibration security parameter of each CPU element It is intended to meet the corresponding security parameter preset value condition being stored in the memory module before operation.
5. security parameter monitoring device according to claim 2, which is characterized in that the modified module is also connected with the dimension Terminal is protected, for the calibration security parameter to be stored in maintenance terminal, and the calibration security parameter is passed through into the peace It is attached under population parameter transceiver module in corresponding CPU element；And it is required to be stored in described before dress action under each execute The calibration security parameter in maintenance terminal is compared with the security parameter preset value in each corresponding CPU, if the school Quasi- security parameter meets the security parameter preset value condition in each corresponding CPU, then executes lower dress process；If the calibration safety Parameter is unsatisfactory for the security parameter preset value condition in each corresponding CPU, then is calibrated again to the calibration security parameter, Until it executes lower dress process again after meeting the security parameter preset value condition in each corresponding CPU.
6. security parameter monitoring device according to claim 2, which is characterized in that the modified module includes batch modification Module, for carrying out batch modification to the practical security parameter.
7. security parameter monitoring device according to claim 2, which is characterized in that the modified module further includes modification day Will forms module, and the calibration process for recording the practical security parameter forms modification daily record.
8. security parameter monitoring device according to claim 2, which is characterized in that the preset Rule of judgment is：
ΔTsetpoint=Δ T0{K1-K2[(1+τ1s)/(1+τ2s)](Tavg-T0avg)+K3(P-P0)-f1(Δφ)}(1)；
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve then triggers reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointFor the setting valve of overtemperature Δ T shutdowns；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is voltage-stablizer pressure (psig)；
P0For normal operation pressure；
K1To preset bias；
K2For preset gain, the temperature effect for compensating deviation nuclear boiling limiting value；
K3For preset gain, the pressure effect for compensating deviation nuclear boiling limiting value；
τ1、τ2It is constant, is used 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；
f1(Δ φ) is the function on top and lower part ionisation chamber neutron fluence rate signal difference；
And Δ Tsetpoint'=Δ T0{K4-K5[τ3s/(1+τ3s)]Tavg-K6(Tavg-Tavg')-f2(Δφ)}(2)；
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' be Over power ΔT shutdown setting valve；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4To preset bias；
K5For constant, and work as TavgIt is 0 when 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；
f2(Δ φ) is the function on top and lower part ionisation chamber neutron fluence rate signal difference.
9. security parameter monitoring device according to claim 1, which is characterized in that further include priority assignation module, be used for Interlock function is set between each CPU element.
10. a kind of nuclear power plant reactor protects system security parameter monitoring method, which is characterized in that step includes：
S1, practical security parameter obtain：Security parameter transceiver module is set, connects the nuclear power plant reactor protection system, uses In the practical security parameter of each CPU element in acquisition nuclear power plant reactor protection system in real time and send the security parameter to Processing module；
S2, the processing of practical security parameter：Security parameter processing module is set, the security parameter transceiver module is connected, being used for will The practical security parameter signal of each CPU element received and the safety of pre-stored each CPU element are joined Number preset value is compared, and generates the calibration security parameter signal of the corresponding CPU element, and each calibration is joined safely Number signal is respectively by being attached to the corresponding CPU element under the security parameter transceiver module.
11. method as claimed in claim 10, which is characterized in that the security parameter processing module includes：Memory module is tested Demonstrate,prove module and modified module；
The memory module connects maintenance terminal, and the security parameter that the maintenance terminal is used to preset each CPU element is pre- If value, the security parameter preset value of each correspondence CPU element is stored in the memory module, and is monitored each described The practical security parameter values of CPU element；
The authentication module is separately connected the memory module and the security parameter transceiver module, for real-time reception by described The practical security parameter of each CPU element of security parameter transceiver module transmission, and the practical safety that will be received Parameter is compared with the security parameter preset value in the corresponding CPU element, and is transmitted and compared verification result；
The modified module is separately connected the authentication module and security parameter transceiver module, for being passed according to the authentication module The relatively verification result sent, is corrected the practical security parameter using preset Rule of judgment, obtains corresponding institute The calibration security parameter for stating CPU element, by the calibration security parameter by being attached to correspondence under the security parameter transceiver module CPU element, and the security parameter preset value stored in the memory module is refreshed simultaneously.
12. method as claimed in claim 10, which is characterized in that further include S3, display interface setting：
Display interface is set between the memory module and maintenance terminal, is used for each corresponding all parameter values of real-time display, And parameter is adjusted and is managed on the display interface.
13. method as claimed in claim 11, which is characterized in that it is default to be stored in each security parameter in the memory module The calibration security parameter of the corresponding each CPU element of value, the calibration security parameter of each CPU element are intended to before operation Meet the corresponding security parameter preset value condition being stored in the memory module.
14. method as claimed in claim 11, which is characterized in that the modified module is also connected with the maintenance terminal, is used for The calibration security parameter is stored in maintenance terminal, and the calibration security parameter is received and dispatched into mould by the security parameter It is attached under block in corresponding CPU element；And it is required to be stored in described in maintenance terminal before dress action under each execute The calibration security parameter is compared with the security parameter preset value in each corresponding CPU, if the calibration security parameter is full Security parameter preset value condition in each corresponding CPU of foot then executes lower dress process；If the calibration security parameter is unsatisfactory for often One corresponds to the security parameter preset value condition in CPU, then is calibrated again to the calibration security parameter, until its satisfaction is every Lower dress process is executed again after security parameter preset value condition in one correspondence CPU.
15. according to the method for claim 11, which is characterized in that the modified module includes batch modification module, is used for Batch modification is carried out to the practical security parameter.
16. according to the method for claim 11, which is characterized in that the modified module further includes that modification daily record forms mould Block, the modification process for recording the practical security parameter form modification daily record.
17. method as claimed in claim 11, which is characterized in that it is characterized in that, the preset Rule of judgment is：Δ Tsetpoint=Δ T0{K1-K2[(1+τ1s)/(1+τ2s)](Tavg-T0avg)+K3(P-P0)-f1(Δφ)}(1)；
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpointSetting valve then triggers reactor shutdown；
Wherein, in above-mentioned formula (1)：ΔTsetpointFor the setting valve of overtemperature Δ T shutdowns；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
T0avgFor T under thermal power ratingavgRated value；
P is voltage-stablizer pressure (psig)；
P0For normal operation pressure；
K1To preset bias；
K2For preset gain, the temperature effect for compensating deviation nuclear boiling limiting value；
K3For preset gain, the pressure effect for compensating deviation nuclear boiling limiting value；
τ1、τ2It is constant, is used 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；
f1(Δ φ) is the function on top and lower part ionisation chamber neutron fluence rate signal difference；
And Δ Tsetpoint'=Δ T0{K4-K5[τ3s/(1+τ3s)]Tavg-K6(Tavg-Tavg')-f2(Δφ)}(2)；
If Δ T (1+ τ4s)/(1+τ5s)≥ΔTsetpoint' setting valve, then trigger reactor shutdown；
Wherein, in above-mentioned formula (2)：ΔTsetpoint' be Over power ΔT shutdown setting valve；
Δ T is the temperature measured by resistance thermometer；
ΔT0For the temperature indicated under thermal power rating；
TavgFor reactor coolant mean temperature (°F)；
Tavg' it is T under thermal power ratingavgSign value；
K4To preset bias；
K5For constant, and work as TavgIt is 0 when 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；
f2(Δ φ) is the function on top and lower part ionisation chamber neutron fluence rate signal difference.
18. according to the method described in claim 10, it is characterized in that, being respectively provided with interlock function between each CPU element.
CN201610848681.6A 2016-09-23 2016-09-23 A kind of nuclear power plant reactor protection system security parameter monitoring device and method Active CN106448775B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610848681.6A CN106448775B (en) 2016-09-23 2016-09-23 A kind of nuclear power plant reactor protection system security parameter monitoring device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610848681.6A CN106448775B (en) 2016-09-23 2016-09-23 A kind of nuclear power plant reactor protection system security parameter monitoring device and method

Publications (2)

Publication Number Publication Date
CN106448775A CN106448775A (en) 2017-02-22
CN106448775B true CN106448775B (en) 2018-09-11

Family

ID=58167375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610848681.6A Active CN106448775B (en) 2016-09-23 2016-09-23 A kind of nuclear power plant reactor protection system security parameter monitoring device and method

Country Status (1)

Country Link
CN (1) CN106448775B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107967953A (en) * 2017-11-13 2018-04-27 中国科学院上海应用物理研究所 Molten salt reactor protects system
CN108538418B (en) * 2018-04-24 2020-05-05 深圳中广核工程设计有限公司 Nuclear power station redundancy analog quantity parameter display system and method
CN108766602B (en) * 2018-06-04 2020-10-16 中广核核电运营有限公司 Nuclear power plant reactor protection system channel test method
CN110580964B (en) * 2019-09-03 2021-05-04 中广核工程有限公司 Online monitoring method and system for thermal power improvement margin of nuclear power unit
CN111581192B (en) * 2020-04-24 2024-04-05 岭东核电有限公司 Nuclear power plant reactor important sensitive parameter management method, device, equipment and medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968974B (en) * 2010-08-09 2013-01-02 中广核工程有限公司 Protecting system of nuclear power station reactor
CN103869846B (en) * 2012-12-14 2015-11-25 中国核动力研究设计院 A kind of major loop cold and hot section of medial temperature signal processing method
CN103871518B (en) * 2012-12-14 2016-08-31 中国核动力研究设计院 A kind of nuclear power plant overtemperature overpower protection temperature signal processing method
CN105321588B (en) * 2014-08-05 2017-09-01 北京广利核系统工程有限公司 The setting method of criterion is verified in a kind of nuclear power plant's overtemperature overpower loop protection passage routine test
KR101653915B1 (en) * 2015-03-11 2016-09-02 주식회사 티보그 Device and method for variable overpower reactor trip of reactor protection system

Also Published As

Publication number Publication date
CN106448775A (en) 2017-02-22

Similar Documents

Publication Publication Date Title
CN106448775B (en) A kind of nuclear power plant reactor protection system security parameter monitoring device and method
US4774050A (en) Axial power distribution monitor and display using outputs from ex-core detectors and thermocouples
EP3374996A2 (en) Subcritical reactivity monitor utilizing prompt self-powered incore detectors
US3998693A (en) Thermal margin control
CN109213108B (en) Nuclear power station operator operation auxiliary support system and method
CN103869846B (en) A kind of major loop cold and hot section of medial temperature signal processing method
US3791922A (en) Thermal margin protection system for a nuclear reactor
Manngård et al. Evaluation of loss-of-coolant accident simulation tests with the fuel rod analysis code FRAPTRAN-1.4
Shieh et al. Application of noise analysis technique for monitoring the moderator temperature coefficient of reactivity in pressurized water reactors
Thulu et al. Safety Analysis in VVER-1000 Due to Large-Break Loss-of-Coolant Accident and Station Blackout Transient Using RELAP5/SCDAPSIM/MOD3. 5
US5761086A (en) Apparatus and method for monitoring pressure-temperature margins
Deswandri et al. Risk identification of integral pressurized water reactor (IPWR) cooling system using a combination HAZOP, FMEA, and FTA methods
In et al. Assessment of core protection and monitoring systems for an advanced reactor SMART
Yarsky TRACE Analysis of a Loss of Alternating-Current Power Without Rod Insertion for the NuScale Power Module—II: Sensitivity to Varying Initial Temperature
KR101664318B1 (en) Method for monitoring restrictive condition for operation of coolant system in heavy water reactor and apparatus using the method
JP7257226B2 (en) Power plant operation management support device
Sweeney et al. Relationship of core exit-temperature noise to thermal-hydraulic conditions in PWRs
Fan et al. Algorithm Research of the ICCMS for Qinshan Phase II NPP Based on FirmSys Platform
Antila et al. Recent improvements in on-line core supervision at Loviisa NPP
He et al. Research on the Verification and Validation Method of Safety Analysis Software in Nuclear Power Plants
Pelo Evaluation of an advanced fault detection system using Koeberg nuclear power plant data
CN117747157A (en) Nuclear reactor data correction method, device, computer equipment and storage medium
Xu et al. Conversion and verification of proportional–integral​ controller parameter in Daya Bay distributed control system modification project
Xu et al. The research of core on-line monitoring technology based on simulation model
CN118155887A (en) Zinc injection control method and device, zinc injection system and computer equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant