CN105843178B - Automatic material-changing method and system for circulating fuel management - Google Patents
Automatic material-changing method and system for circulating fuel management Download PDFInfo
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Abstract
The automatic refuelling system and method for circulating fuel management are disclosed, method includes: to initialize to system；Receive the information of reactor core program transmitting；Part reactor core is restored strategy by reactor core and is reduced to Whole core by information based on the received；Analysis reloads component in the position of a upper circulation, rotates strategy using component to adjust the distributing position of locking nub in the component that reloads；It is reloaded component internal information by the batch turning information exchange according to input, Lai Jinhang reloads；And the reactor core display after reloading is uploaded to reactor core program, the core model for being used for subsequent cycle is formed, to carry out following cycle calculating.Illustrated embodiments of the invention do not limit heap-type, reactor core suitable for any heap-type calculates, by establishing each circulation burnup latter stage database, read each circulation reactor reloading pattern arrangement, the automatic reload core of multi-cycle may be implemented to calculate, convenience is provided for fuel management, there is good engineer application.
Description
Technical field
Exemplary embodiment of the present relates generally to nuclear power plant's fuel management field, and in particular to one kind is for recycling combustion
The automatic material-changing method and system of expects pipe reason.
Background technique
A collection of nuclear fuel element will often undergo several circulations that can just draw off reactor core, during this period, need in heap in-core
It stops for quite a long time (general 3~5 years), carries out repeatedly circulation refueling operation.Meanwhile the manufacturing cost of nuclear fuel is extremely
Expensive, thus while considering npp safety, advanced nuclear fuel management strategy how is selected, core is made full use of to fire
Material, improves its burn-up level, further decreases fuel cost and operating cost, superior in terms of economy for playing nuclear power
Property has extremely important meaning.
Nuclear power plant when carrying out in-core fuel management needs that multi-cycle fuel is carried out batch discharging and reloaded, and is directed to
Each refuelling scheme design needs to carry out Modeling Calculation using reactor core program.Traditional reactor core program is required to for recycling every time
The data such as upper circulation burnup, nucleon density are read, are modeled again for subsequent cycle.When cycle-index is more and reactor core data
When huge, biggish workload and higher error rate will cause.
Summary of the invention
Exemplary embodiment of the present provides a kind of technology of reloading automatically, provides data for the calculating of reactor circulating fuel
Update, promoted computational efficiency.
According to an aspect of the present invention, a kind of automatic refuelling system for circulating fuel management is proposed, comprising: prepare single
Member initializes system；Reactor core data receipt unit receives the information of reactor core program transmitting；The reduction of reactor model is single
Part reactor core is restored strategy by reactor core and is reduced to Whole core by member according to the received information of reactor core data receipt unit；Component
Rotary unit, analysis reload component in the position of a upper circulation, rotate strategy using component to adjust locking nub in the component that reloads
Distributing position；Module information crosspoint, is reloaded component internal information by the batch turning information exchange according to input, and Lai Jinhang is changed
Material；And reactor core data updating unit, the reactor core display after reloading is uploaded to reactor core program, is formed for subsequent cycle
Core model, to carry out following cycle calculating.
According to example embodiment, the initialization of preparatory unit includes: file and data needed for preparing to calculate, and checks heap
Core routine interface.
According to example embodiment, the received information of reactor core data receipt unit includes core model, the component parameter that reloads, falls
Expect information, calculate mode and control variable.
According to example embodiment, reactor model reduction unit is symmetric response heap model reduction unit, according to holohedral symmetry
With symmetrically one of two different symmetric patterns, 1/4 or 1/8 reactor core is restored into strategy by reactor core and is reduced to Whole core.
According to example embodiment, component rotary unit adjusts component according to the asymmetry of reactor core and quadrant power tilt
The distributing position of middle locking nub, to guarantee the smooth of core power distribution.
According to example embodiment, component rotary unit is directed to two kinds of holohedral symmetry reflecting boundary and rotational symmetry reflecting boundary not
Same symmetrical border rotates strategy using different components.
According to example embodiment, system further include: module information finishing unit, the component parameter that reactor core program is transmitted are believed
Breath arranges to meet the format of demand of reloading automatically, and connects circulation and reload database, wherein the circulating picture-changing material database packet
Multiple circulation word banks are included, for storing the data of each circulation；And the data information acquisition unit that reloads is recycled, in each circulation meter
Acquisition component parameter information after calculation, and be stored in different circulation word banks in case calling.
According to example embodiment, system further include: batch turning analytical unit interprets the batch turning information of input, batch turning is arranged
Figure is converted to the sequence that circulating fuel database can be read.
According to example embodiment, system further include: the process during file management unit, record and management are reloaded is literary
Shelves, and sorted out and stored.
According to example embodiment, system further includes at least one of the following: report an error unit, defeated when reloading process error
Error information out, or warning message is exported when user inputs and malfunctions；And the display unit that reloads, show output data, it is described
Output data includes reload core arrangement and component parameter information.
According to a further aspect of the invention, a kind of automatic material-changing method for circulating fuel management is proposed, including following
Step: system is initialized；Receive the information of reactor core program transmitting；Part reactor core is passed through heap by information based on the received
Core reduction strategy is reduced to Whole core；Analysis reloads component in the position of a upper circulation, is changed using component rotation strategy to adjust
Expect the distributing position of locking nub in component；It is reloaded component internal information by the batch turning information exchange according to input, Lai Jinhang reloads；
And the reactor core display after reloading is uploaded to reactor core program, and the core model for being used for subsequent cycle is formed, it is subsequent to carry out
Cycle calculations.
According to example embodiment, method further include: the component parameter information for transmitting reactor core program arranges automatic to meet
The format for demand of reloading, and connect circulation and reload database, wherein the circulating picture-changing material database includes multiple circulation word banks, use
In the data for storing each circulation；And the acquisition component parameter information after each cycle calculations, and it is stored in different circulation
In case calling in library.
Illustrated embodiments of the invention do not limit heap-type, and the reactor core suitable for any heap-type calculates, such as pressure
Water-water reactor multi-cycle reactor core calculates.Example embodiment according to the present invention is read each by establishing each circulation burnup latter stage database
A circulation reactor reloading pattern arrangement may be implemented the automatic reload core of multi-cycle and calculate, provide convenience for fuel management, has good
Engineer application.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 shows the schematic block of the automatic refuelling system for circulating fuel management of example embodiment according to the present invention
Figure；
Fig. 2 shows the different rotary strategies used in component rotation for different symmetrical borders；And
Fig. 3 shows the signal stream of the automatic material-changing method for circulating fuel management of example embodiment according to the present invention
Cheng Tu.
Specific embodiment
Example embodiments of the present invention is described in detail with reference to the accompanying drawing.It is described below including various details with auxiliary
Assistant's solution, but these details should be illustrated solely as illustratively.It therefore, it will be appreciated by those of ordinary skill in the art that can be with
Each embodiment described herein is made various changes and modifications in the case where not departing from disclosure scope and spirit.This
Outside, for clarity and conciseness, the description of known function and structure is omitted.
It is described below and is not limited to its literal meaning with term used in claim and word, but only used by inventor
In realization clear consistent understanding of the invention.Therefore, it will be apparent to those skilled in the art that implementing to each example of the present invention
Being described below for example is only provided to illustration purpose, and is not intended to the sheet that limitation is defined by the appended claims and the equivalents thereof
Invention.
Below in conjunction with attached drawing the present invention will be described in detail embodiment.
Fig. 1 shows the schematic block of the automatic refuelling system for circulating fuel management of example embodiment according to the present invention
Figure.As shown in Figure 1, the system 100 includes preparatory unit 101, reactor core data receipt unit 102, reactor model reduction unit
103, component rotary unit 104, module information crosspoint 105 and reactor core data updating unit 106.The list that system 100 includes
Member is not limited to shown in Fig. 1, as described below can also include a number of other units.
Preparatory unit 101 initializes system, specifically, prepares file and data needed for calculating, and check heap
Core routine interface guarantees the complete correctness of various aspects before calculating.
Reactor core data receipt unit 102 receive reactor core program transmitting information, such as core model, the component parameter that reloads,
Batch turning information, calculating mode, control variable etc..
Reactor model reduction unit 103 passes through part reactor core according to the received information of reactor core data receipt unit 102
Reactor core reduction strategy is reduced to Whole core.In one example, reactor model reduction unit 103 be symmetric response heap model also
Former unit is restored 1/4 or 1/8 reactor core by reactor core according to one of holohedral symmetry and the two different symmetric patterns of rotational symmetry
Strategy is reduced to Whole core.
Component rotary unit 104 analyzes the component that reloads in the position of a upper circulation, is changed using component rotation strategy to adjust
Expect the distributing position of locking nub in component.According to example embodiment, component rotary unit 104 is according to the asymmetry and quadrant of reactor core
Power silt adjusts the distributing position of locking nub in component, to guarantee the smooth of core power distribution.For example, component rotary unit
For the two different symmetrical borders in holohedral symmetry reflecting boundary and rotational symmetry reflecting boundary, plan is rotated using different components
Slightly.This is specifically described hereinafter in conjunction with Fig. 2.
Module information crosspoint 105 is reloaded component internal information by the batch turning information exchange according to input, Lai Jinhang
It reloads.It will be understood by those skilled in the art that " reloading " process here refers to the simulation to process of actually reloading, only need to exchange
The module information of simulation does not need real moving assembly.Real component movement be reload in nuclear power plant it is complete among practical operation
At.
Reactor core display after reloading is uploaded to reactor core program by reactor core data updating unit 106, is formed and is followed for next
The core model of ring, to carry out following cycle calculating.
It is not seen in fig. 1, but in the exemplary embodiment, system 100 can also include: that module information arranges list
Member arranges component parameter information that reactor core program is transmitted to meet the format for demand of reloading automatically, and connects circulation and reload number
According to library, recycling the database that reloads may include multiple circulation word banks, for storing the data of each circulation；And recycle data of reloading
Information acquisition unit, the acquisition component parameter information after each cycle calculations, and be stored in different circulation word banks in case adjusting
With.
In addition, system can also include one or more of following: batch turning analytical unit interprets the batch turning letter of input
Batch turning layout drawing, is converted to the sequence that circulating fuel database can be read by breath；File management unit, record and management were reloaded
Procedure documents in journey, and sorted out and stored；Report an error unit, exports error information when reloading process error, or with
Warning message is exported when the input error of family；And the display unit that reloads, show that output data, the output data include the heap that reloads
Core arrangement and component parameter information.
Strategy and technology involved in each unit realization of automatic refuelling system 100 is described more detail below.
1. multi-cycle fuel management strategy
Main task is sought in the energy requirement for meeting electric system and in the constraint of nuclear fuel resources structure, in electricity
Under the limitation of factory's design specification and technical requirements, the whole of its economic security operation is made for a series of operation circulation of nuclear power plant
Decision.Its key problem is how under conditions of guaranteeing npp safety operation, keeps the unit energy cost of nuclear power plant minimum.
In such as pressurized water reactor core fuel management calculating, the reactor core display of a reasonable, is generally needed in order to obtain
To pass through following main flow:
1) fuel management strategy is determined according to generation schedule, main includes determining batch of material number or a collection of reload batch, circulation
Length etc.；
2) fresh fuel quantity and degree of enrichment, old material component class are then determined according to determining length of the cycle or burn-up level
Type；
3) reload Optimizing Search (such as genetic algorithm, simulated annealing) is carried out to the component of usable type, obtained
Meet the charge schedule of target call (for example, the lowest power peak factor or largest loop length)；
4) according to the 2) the prepared standard of step check whether charge schedule feasible, it is such as infeasible to return to the 3) step；
5) determine control poisonous substance in the arrangement of reactor core, control and operating scheme according to target power distribution etc.；
6) charge schedule for meeting above-mentioned requirements is subjected to safety analysis of reloading by Safety analysis code, is such as unsatisfactory for wanting
It asks (for example, thermal-hydraulic performance, mechanical performance not up to standard etc.), returns to the 3) step；
7) using reactor core program (for example, COSINE software package, but not limited to this, as long as the program technic met the requirements
Can be used) it is finely adjusted.The scheme finely tuned at present is manual methods, i.e., obtained charge schedule reactor core display is put into heap
Core program calculates, when having better scheme by micro-judgment if there is be unsatisfactory for design requirement a little or designer,
The charge schedule is adjusted manually.
After the above process determines refuelling scheme, due to calculation amount and calculate the time limitation, can only be directed to it is various
The basic parameter of different refuelling schemes carries out preliminary evaluation, does not require to be also impossible to make each scheme comprehensive, accurate
Calculating.Thus after obtaining best refuelling scheme, need using accurate core physics/Thermal-hydraulic code to finally changing
Material heap core carries out comprehensive, accurate Reload design, provides whole technology ginsengs needed for reactor design, operation and safety evaluation
Number.
2. reactor core placement policies
Reactor core display strategy refers to that how to arrange component lays out a suitable reactor core.Influence determining for reactor core arrangement
Plan variable mainly includes fresh fuel degree of enrichment, burnable poison form, the lot number to reload, length of the cycle requirement etc..Reactor core display is
It needs on the basis of the external decision variable that these have determined that, determines fuel assembly (including virgin material and old material) and flammable
The quantity of poisonous substance and the arrangement in heap, essence are exactly to determine degree of enrichment ε (i, j) and burnup BU (i, j) and flammable poison
Distribution of the object Ba (i, j) in reactor core.
A large amount of possible reactor core display schemes are counted by optimization algorithm (such as genetic algorithm, simulated annealing)
Calculate, be screened out from it preferred plan (for example, using the lowest power peak factor or largest loop length etc. as target call,
Selection meets the preferred plan of target call), it designs and runs for nuclear power plant's reactor.
The foundation of database 3. circulation is reloaded
In batches under refuelling scheme, a fuel assembly will often stop three circulations or more in heap can just draw off reactor core,
Often there is the close relationships for influencing each other and intercoupling between each decision variable, therefore, during reloading automatically
The circular database including multiple word banks can be set, to record the data of each circulation of reactor core needed for calculating.Meanwhile
Automatically the mode for taking single cent part to read during reloading accesses word bank or input file different in database, to establish
New computation model.
4. symmetric response heap model reduction technique
In reactor design, in order to reduce calculation amount, often think that reactor core is 1/4 or 1/8 symmetrical, therefore only calculation part
Stacking core is as Whole core result.For example, integrality and authenticity in order to fully ensure that reactor core, it is contemplated that in symmetrical approximation
1/4 or 1/8 reactor core can be reduced to full heap by establishing core model database and reading symmetrical approximate boundaries by nuance
Core model.
5. reactor module information switching technology
Optimize reactor core display that program obtains and treated charge schedule layout drawing by reloading by reading, obtains and reload
Then computation module sequence mark reads module information needed for reactor core calculates by being indicated in multi-cycle database, i.e., only needs
" content " in moving assembly does not need real moving assembly and completes process of reloading.
6. different symmetrical boundary condition component rotation techniques
Fuel in same component, since the deviation burn-up level of position is also not quite similar, the component of a upper circulation
If necessary to continue to use in subsequent cycle, in order to guarantee between component with close as far as possible burn-up level and low as far as possible
Power peak factor, often by the component of its 1/4 reactor core other symmetric positions it is interchangeable after place into reactor core.According to the present invention
Embodiment rotates strategy using different components as shown in Fig. 2, being directed to different symmetrical borders.It is shown on the left of Fig. 2 for rotation
Turn symmetric reflective boundary, locking nub each in component is subjected to central symmetry duplication according to quadrant, is shown on the right side of Fig. 2 for complete right
Claim reflecting boundary, locking nub each in component is subjected to mirror surface symmetric replication according to quadrant.
Fig. 3 shows the signal stream of the automatic material-changing method for circulating fuel management of example embodiment according to the present invention
Cheng Tu.This method is corresponding with the automatic each unit of refuelling system 100 shown in Fig. 1, can use kind described above strategy
It is realized with technology.Therefore, no longer each step of method is described in detail.As shown in figure 3, method 300 includes multiple steps
It is rapid:
Step 301: system is initialized；
Step 302: receiving the information of reactor core program transmitting；
Step 303: part reactor core is restored strategy by reactor core and is reduced to Whole core by information based on the received；
Step 304: analysis reloads component in the position of a upper circulation, rotates strategy using component to adjust in the component that reloads
The distributing position of locking nub；
Step 305: being reloaded component internal information by the batch turning information exchange according to input, Lai Jinhang reloads；And
Step 306: the reactor core display after reloading being uploaded to reactor core program, forms the heap core model for being used for subsequent cycle
Type, to carry out following cycle calculating.
Although being not shown in Fig. 3, according to example embodiment, method 300 can also include a number of other steps, such as by heap
The component parameter information of core program transmitting arranges to meet the format of demand of reloading automatically, and connects circulation and reload database,
Described in the circulation database that reloads include multiple circulation word banks, for storing the data of each circulation；And in each cycle calculations
Acquisition component parameter information afterwards, and be stored in different circulation word banks in case calling.
Above detailed description has elaborated use according to the present invention by using schematic diagram, flow chart and/or example
In the automatic refuelling system of circulating fuel management and the embodiment of method.It include one in this schematic diagram, flow chart and/or example
In the case where a or multiple functions and/or operation, it will be understood by those skilled in the art that in this schematic diagram, flow chart or example
Each function and/or operation can by various structures, hardware, software, firmware or substantially they any combination come singly
Solely and/or jointly realize.Those skilled in the art will appreciate that some aspects of embodiments disclosed herein on the whole or
It partly can equally realize in integrated circuits, be embodied as the one or more meters run on one or more computer
Calculation machine program (for example, being embodied as the one or more programs run in one or more computer system), is embodied as firmware,
Or substantially it is embodied as any combination of aforesaid way, and those skilled in the art will be provided with design electricity according to the disclosure
The ability of road and/or write-in software and/or firmware code.In addition, it would be recognized by those skilled in the art that theme described in the disclosure
Mechanism can be distributed as the program product of diversified forms, and no matter the practical signaling bearer for being used to execute distribution is situated between
How is the concrete type of matter, and the exemplary embodiment of theme described in the disclosure is applicable in.The example of signal bearing medium include but
It is not limited to: recordable-type media, such as floppy disk, hard disk drive, compact-disc (CD), digital versatile disc (DVD), digital magnetic tape, meter
Calculation machine memory etc.；And transmission type media, such as number and/or analogue communication medium are (for example, optical fiber cable, waveguide, cable modem
Believe link, wireless communication link etc.).
Although exemplary embodiment describes the present invention with reference to several, it is to be understood that, term used is explanation and shows
Example property, term and not restrictive.The spirit or reality that can be embodied in a variety of forms due to the present invention without departing from invention
Matter, it should therefore be appreciated that above-described embodiment is not limited to any of the foregoing details, and the spirit defined by appended claims
It all should be accompanying power with the whole change and modification widely explained, therefore fallen into claim or its equivalent scope in range
Benefit requires to be covered.
Claims (11)
1. a kind of automatic refuelling system for circulating fuel management, comprising:
Preparatory unit initializes system；
Reactor core data receipt unit receives the information of reactor core program transmitting；
Reactor model reduction unit is restored part reactor core by reactor core according to the received information of reactor core data receipt unit
Strategy is reduced to Whole core；
Component rotary unit, analysis reload component in the position of a upper circulation, rotate strategy using component to adjust the component that reloads
The distributing position of middle locking nub；
Module information crosspoint, is reloaded component internal information by the batch turning information exchange according to input, and Lai Jinhang reloads；With
And
Reactor core display after reloading is uploaded to reactor core program, forms the heap for being used for subsequent cycle by reactor core data updating unit
Core model, to carry out following cycle calculating,
Wherein the component rotary unit adjusts point of locking nub in component according to the asymmetry of reactor core and quadrant power tilt
Cloth position, to guarantee the smooth of core power distribution.
2. system according to claim 1, wherein the initialization of preparatory unit includes: file sum number needed for preparing to calculate
According to, and check reactor core routine interface.
3. system according to claim 1, wherein the received information of reactor core data receipt unit includes core model, reloads
Component parameter, batch turning information calculate mode and control variable.
4. system according to claim 1, wherein reactor model reduction unit is symmetric response heap model reduction unit,
According to one of holohedral symmetry and the two different symmetric patterns of rotational symmetry, 1/4 or 1/8 reactor core is restored into strategy reduction by reactor core
For Whole core.
5. system according to claim 1, wherein component rotary unit is anti-for holohedral symmetry reflecting boundary and rotational symmetry
The two different symmetrical borders in boundary are penetrated, strategy is rotated using different components.
6. system according to claim 1, further includes:
Module information finishing unit arranges the component parameter information that reactor core program is transmitted to meet the lattice for demand of reloading automatically
Formula, and connect circulation and reload database, wherein the circulating picture-changing material database includes multiple circulation word banks, for storing each circulation
Data；And
The data information acquisition unit that reloads, the acquisition component parameter information after each cycle calculations are recycled, and is stored in different
It recycles in word bank in case calling.
7. system according to claim 1, further includes:
Batch turning analytical unit interprets the batch turning information of input, and batch turning layout drawing, which is converted to, can be read circulating fuel database
Sequence.
8. system according to claim 1, further includes:
File management unit records and manages the procedure documents during reloading, and sorted out and stored.
9. system according to claim 1 further includes at least one of the following:
Report an error unit, exports error information when reloading process error, or export warning message when user inputs and malfunctions；And
Reload display unit, shows that output data, the output data include reload core arrangement and component parameter information.
10. a kind of automatic material-changing method for circulating fuel management, comprising the following steps:
System is initialized；
Receive the information of reactor core program transmitting；
Part reactor core is restored strategy by reactor core and is reduced to Whole core by information based on the received；
Analysis reloads component in the position of a upper circulation, rotates strategy using component to adjust the distribution position of locking nub in the component that reloads
It sets；
It is reloaded component internal information by the batch turning information exchange according to input, Lai Jinhang reloads；And
Reactor core display after reloading is uploaded to reactor core program, forms the core model for being used for subsequent cycle, it is subsequent to carry out
Cycle calculations,
Wherein the distributing position for adjusting locking nub in the component that reloads includes the asymmetry and quadrant power tilt according to reactor core
The distributing position of locking nub in component is adjusted, to guarantee the smooth of core power distribution.
11. according to the method described in claim 10, further include:
Component parameter information that reactor core program is transmitted is arranged to meet the format for demand of reloading automatically, and connects circulation and reload number
According to library, wherein the circulating picture-changing material database includes multiple circulation word banks, for storing the data of each circulation；And
The acquisition component parameter information after each cycle calculations, and be stored in different circulation word banks in case calling.
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| CN110402467B (en) * | 2017-02-27 | 2023-04-28 | 泰拉能源公司 | System and method for modeling nuclear reactor |
| CN109649995B (en) * | 2018-11-02 | 2021-02-12 | 中广核核电运营有限公司 | System and method for simulating loading and unloading states of nuclear power plant reactor |
| CN109359433B (en) * | 2018-12-04 | 2022-08-30 | 中国核动力研究设计院 | Automation method for reactor core refueling design |
| CN111354495A (en) * | 2018-12-24 | 2020-06-30 | 核工业计算机应用研究所 | Method for switching related assemblies for overhaul refueling of pressurized water reactor nuclear power station |
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