CN109002741A - A kind of compacted clay liners one, secondary coolant circuit system transmit power analog method and system - Google Patents
A kind of compacted clay liners one, secondary coolant circuit system transmit power analog method and system Download PDFInfo
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- CN109002741A CN109002741A CN201810613610.7A CN201810613610A CN109002741A CN 109002741 A CN109002741 A CN 109002741A CN 201810613610 A CN201810613610 A CN 201810613610A CN 109002741 A CN109002741 A CN 109002741A
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- 239000002826 coolant Substances 0.000 title claims abstract description 44
- 239000004927 clay Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000004364 calculation method Methods 0.000 claims description 35
- 238000000605 extraction Methods 0.000 claims description 19
- 238000004422 calculation algorithm Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 6
- 238000010025 steaming Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
- G06G7/54—Analogue computers for specific processes, systems or devices, e.g. simulators for nuclear physics, e.g. nuclear reactors, radioactive fall
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
- G06G7/62—Analogue computers for specific processes, systems or devices, e.g. simulators for electric systems or apparatus
Abstract
The invention discloses a kind of compacted clay liners one, secondary coolant circuit systems to transmit power analog method and system, which comprises carries out Initialize installation to the compacted clay liners parameter；This step-length electrical data is obtained according to preset rules；The primary Ioops system model and secondary coolant circuit system model of compacted clay liners are solved, calculating parameter is obtained；Porthole output power final in compressed water reactor nuclear power system model is calculated using the calculating parameter, exporting the final porthole output power is compacted clay liners one, secondary coolant circuit system transmitting power；The method and system pass through fitting main steam and the specific enthalpy of water supply, other row and generatine set heat efficiency are considered simultaneously, using the method for enthalpy drop in the unit of account time, it solves the problems, such as that existing electric system center motor group model one, secondary coolant circuit system transmitting power are difficult to accurately calculate, improves the simulation accuracy of nuclear power model.
Description
Technical field
The present invention relates to field of power systems, pass more particularly, to a kind of compacted clay liners one, secondary coolant circuit system
Pass power analog method and system.
Background technique
Currently, China's nuclear power developing is rapid, is planned according to national nuclear power Long-and Medium-term Development, arrives the year two thousand twenty, and Chinese Nuclear Power exists
Conveyor capacity will build capacity then up to 30,000,000 kilowatts, nuclear power installation accounting will be mentioned from 1% in 2015 up to 58,000,000 kilowatts
Rise to the 5% of 2020.As specific gravity is gradually increased nuclear power in the power system, in particular with coastal region in east China large size core
Electric base is gradually put into operation, and operation of power networks will will appear many new problems.Due to nuclear safety and power grid security have it is great
Society and politics influence, it is necessary to further investigate the later dynamic characteristic of nuclear power unit access power grid, it is ensured that the two can safety and stability
Operation.
As the compacted clay liners of China's mainstream nuclear power, two parts mutually completely cut off can be divided by its principle, i.e.,
Primary Ioops system with nuclear fission production steam and the secondary coolant circuit system using saturation moist steam pushing turbine acting power generation.Its
In, primary Ioops are that nuclear power unit is different from the main place of conventional power unit；The function of secondary coolant circuit system then with conventional power unit substantially phase
Together, but have the characteristics that main steam condition is low, enthalpy drop is small, humidity and flow are big.In order to accurately reflect nuclear power unit under disturbance
Dynamic characteristic, need to establish between one, secondary coolant circuit system transmit power detail mathematic model.
But the nuclear power unit model for stabilization of power grids emulation is primarily upon the Modeling Research of primary Ioops system, for two times
There are two types of modes for the modeling of road system.One way in which is to carry out Accurate Model according to thermal technology principle, but this model is excessively
Complexity, calculation amount is excessive, especially when nuclear power accounts for certain proportion in power grid, it is difficult to practical in electric system simulation program
Using.Another way is also the mode of current mainstream, then is based on fired power generating unit model, the mode for taking parameter to survey carries out
Modeling, or even directly adopt the replacement of thermoelectricity model.Due to failing the power transfer feature between consideration one, secondary coolant circuit system, these
The error of model is larger, it is difficult to accurately reflect the dynamic characteristic of actual set.
Summary of the invention
In order to solve existing existing for background technique the simulation model of compacted clay liners can not to be simulated completely
Nuclear power unit characteristic fails in view of the power transfer between one, secondary coolant circuit system, so that the problem that simulation error is larger, this hair
It is bright to provide a kind of compacted clay liners one, secondary coolant circuit system transmitting power analog method and system；The method and system
The characteristics of by being saturated moist steam to core steam turbine, by fitting main steam and the specific enthalpy of water supply, while considering other row and unit
The thermal efficiency is realized using the method for enthalpy drop in the unit of account time to transmitting power between nuclear steam supply system and prime mover
Accurate simulation, a kind of compacted clay liners one, secondary coolant circuit system transmitting power analog method include:
Initialize installation is carried out to the compacted clay liners parameter；
This step-length electrical data is obtained according to preset rules；
The primary Ioops system model and secondary coolant circuit system model of compacted clay liners are solved, obtains and calculates ginseng
Number；The calculating parameter includes the vapor (steam) temperature T of steam generator secondary circuit sides, the effective steam demand coefficient k of steam turbineseWith
And heat-extraction system steam flow f by steam turbinestm2；
Porthole output power final in compressed water reactor nuclear power system model is calculated using the calculating parameter；
Further, it is described using the calculating parameter to porthole output power final in compressed water reactor nuclear power system model into
Row calculates, including calculating specific steam enthalpy, water supply specific enthalpy and total steam flow in corresponding step-length according to the calculating parameter；
Further, the calculation method of the specific steam enthalpy includes:
Obtain steam generator secondary circuit in secondary circuit of PWR nuclear power plant system model described in the calculating parameter
The vapor (steam) temperature T of sides；
The variation relation being fitted between nuclear steam turbine main steam specific enthalpy and temperature, and obtain fitting coefficient k0、k1、k2、
k3；
The specific steam enthalpy value h according to temperature computations；Pressure factor, the calculation formula are considered simultaneously are as follows:
Further, the calculation method of the total steam flow includes:
Obtain the specified main steam flow f of steam turbinestmnAnd compacted clay liners two described in the calculating function return
The effective steam demand coefficient k of steam turbine in the system model of roadseWith heat-extraction system steam flow f by steam turbinestm2；
Calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
Calculate practical total steam flow fstm, total steam flow fstmFor the steam turbine main steam flow with it is described
The sum of other heat-extraction system steam flow；
Further, the calculation method of the water supply specific enthalpy includes:
Obtain total steam flow fstm；
Steam generator secondary circuit side water supply specific enthalpy h is fitted using segmented modew, fitting coefficient k is calculated4、k5；
Calculate steam generator secondary circuit side water supply specific enthalpy hw, the calculating of steam generator secondary circuit side water supply specific enthalpy
Mode are as follows: hw=k4+k5fstm；
It calculated according to steam generator secondary circuit side water supply specific enthalpy by inertial element, be sent to steam generator participation
The practical water supply specific enthalpy h that secondary circuit calculatesinAre as follows:
Further, the calculation method of the final porthole output power includes:
According to the long secondary circuit power of previous step and unit heat balance diagram acquisition secondary circuit in this step-length electrical data
Thermal efficiency η；
Obtain the specific steam enthalpy h of secondary circuits, water supply specific enthalpy hin, steam turbine main steam flow fstm1And steam turbine is specified
Power PM0；
The final porthole output power PGVCalculation formula are as follows:
Further, the calculating parameter is by handing over the primary Ioops system model and secondary coolant circuit system model
Fork iterative solution obtains；
Further, the electrical data of described step-length is long interior defeated including calculating parameter and final porthole by previous step
The parameter of power is calculated according to the numerical integration algorithm of setting and is obtained out；The primary Ioops system model of the compacted clay liners
And secondary coolant circuit system model is solved according to the electrical data of this step-length.
A kind of compacted clay liners one, secondary coolant circuit system transmitting power analog system include:
Initialization unit, the initialization unit are used to carry out Initialize installation to the compacted clay liners parameter；
Electrical data computing unit, the electrical data computing unit calculate the electrical of this step-length according to preset rules
Measure data；
Model computing unit, the model computing unit be used for the primary Ioops system models of compacted clay liners and
Secondary coolant circuit system model is solved, and calculating parameter is obtained；The calculating parameter includes the steam of steam generator secondary circuit side
Temperature Ts, the effective steam demand coefficient k of steam turbineseAnd heat-extraction system steam flow f by steam turbinestm2；
COMPREHENSIVE CALCULATING unit, the COMPREHENSIVE CALCULATING unit are used for the calculating parameter pair using model computing unit output
Final porthole output power is calculated in compressed water reactor nuclear power system model；
Further, the COMPREHENSIVE CALCULATING unit is used to calculate the steam ratio in corresponding step-length according to the calculating parameter
Enthalpy, water supply specific enthalpy and total steam flow；
Further, the COMPREHENSIVE CALCULATING unit is for calculating the specific steam enthalpy；
In COMPREHENSIVE CALCULATING unit secondary circuit of PWR nuclear power plant system model according to the calculating parameter
The vapor (steam) temperature T of steam generator secondary circuit sides, the variation relation being fitted between nuclear steam turbine main steam specific enthalpy and temperature,
And obtain fitting coefficient k0、k1、k2、k3；
COMPREHENSIVE CALCULATING unit specific steam enthalpy value h according to temperature computations；The calculation formula are as follows:
Further, the COMPREHENSIVE CALCULATING unit is for calculating the total steam flow；
The COMPREHENSIVE CALCULATING unit is according to the specified main steam flow f of steam turbinestmnAnd it is pressed described in the calculating function
The effective steam demand coefficient k of steam turbine in water-water reactor nuclear power unit secondary coolant circuit system modelseWith heat-extraction system steam flow by steam turbine
fstm2, calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
The COMPREHENSIVE CALCULATING unit is used to calculate practical total steam flow fstm, total steam flow fstmIt is described
The sum of steam turbine main steam flow and the other heat-extraction system steam flow；
Further, the COMPREHENSIVE CALCULATING unit is for calculating the water supply specific enthalpy；
The COMPREHENSIVE CALCULATING unit obtains main steam flow fstm, steam generator secondary circuit side is fitted using segmented mode
Water supply specific enthalpy hw, fitting coefficient k is calculated4、k5；
The COMPREHENSIVE CALCULATING unit is for calculating steam generator secondary circuit side water supply specific enthalpy hw, the steam generator two
The calculation of circuit side water supply specific enthalpy are as follows: hw=k4+k5fstm；
The COMPREHENSIVE CALCULATING unit is calculated by inertial element according to steam generator secondary circuit side water supply specific enthalpy, is sent
The practical water supply specific enthalpy h that secondary circuit calculates is participated in toward steam generatorinAre as follows:
Further, the COMPREHENSIVE CALCULATING unit is used for according to the long secondary circuit function of previous step in this step-length electrical data
Rate and unit heat balance diagram obtain secondary circuit thermal efficiency η；
The COMPREHENSIVE CALCULATING unit is for calculating the final porthole output power PGV；The final porthole output power
PGVCalculation formula are as follows:
Wherein, hsFor specific steam enthalpy, hinFor water supply specific enthalpy, fstm1For steam turbine main steam flow, PM0It is specified for steam turbine
Power；
Further, the model computing unit by the primary Ioops system model and secondary coolant circuit system model into
Row cross-iteration, which solves, obtains calculating parameter；
Further, the electrical data computing unit is long interior including calculating parameter and final porthole by previous step
The parameter of output power calculates the electrical data for obtaining this step-length according to the numerical integration algorithm of setting；
The model computing unit passes through the primary Ioops system of the electrical data to the compacted clay liners of this step-length
System model and secondary coolant circuit system model are solved.
The invention has the benefit that technical solution of the present invention, a kind of compacted clay liners one, secondary circuit are given
System transmits the characteristics of power analog method and system, the method and system are by being saturated moist steam to core steam turbine, passes through
It is fitted the specific enthalpy of main steam and water supply, while considering other row and generatine set heat efficiency, using the method for enthalpy drop in the unit of account time,
It realizes to the accurate simulation for transmitting power between nuclear steam supply system and prime mover, relatively accurately reflects nuclear power unit
One, between secondary circuit changed power dynamic process, overcome and existing simply apply thermal power steam turbine entrance power calculation algorithms and make
At the excessive difficulty of model dynamic error, solve existing Model for Stability Calculation of Power System center motor group model one, secondary circuit system
System transmitting power be difficult to the problem of accurately calculating, improve the simulation accuracy of nuclear power model, for research nuclear power unit and power grid it
Between influence each other and provide technical support with coordinated control.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is a kind of compacted clay liners one of the specific embodiment of the invention, secondary coolant circuit system transmitting power analog
The flow chart of method；
Fig. 2 is a kind of compacted clay liners one of the specific embodiment of the invention, secondary coolant circuit system transmitting power analog
The structure chart of system.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is a kind of compacted clay liners one of the specific embodiment of the invention, secondary coolant circuit system transmitting power mould
The flow chart of quasi- method；The method considers other row and generatine set heat efficiency by fitting main steam and the specific enthalpy of water supply, adopts
With the method for calculating enthalpy drop in the unit time, realize to the accurate mould for transmitting power between nuclear steam supply system and prime mover
Quasi-, a kind of compacted clay liners one, secondary coolant circuit system transmitting power analog method include:
Step 110, the compacted clay liners parameter carries out Initialize installation；
The compacted clay liners parameter for carrying out Initialize installation includes initialization trend basic data, system network
Network, nuclear power unit one, secondary coolant circuit system and the corresponding interface parameter；
Step 120, this step-length electrical data is obtained according to preset rules；
Further, described step-length electrical data is by including that calculating parameter and final porthole export in previous step length
The parameter of power is calculated according to the numerical integration algorithm of setting and is obtained；
Step 130, the primary Ioops system model of compacted clay liners and secondary coolant circuit system model are solved, is obtained
Obtain calculating parameter；The calculating parameter includes the vapor (steam) temperature T of steam generator secondary circuit sides, the effective steam demand of steam turbine
Coefficient kseAnd heat-extraction system steam flow f by steam turbinestm2；
Further, the calculating parameter is by handing over the primary Ioops system model and secondary coolant circuit system model
Fork iterative solution obtains；
The primary Ioops system model and secondary coolant circuit system model of the compacted clay liners are according to the electrical of this step-length
Data are measured to solve；
Step 140, porthole output power final in compressed water reactor nuclear power system model is counted using the calculating parameter
It calculates；
Further, it is described using the calculating parameter to porthole output power final in compressed water reactor nuclear power system model into
Row calculates, including calculating specific steam enthalpy, water supply specific enthalpy and total steam flow in corresponding step-length according to the calculating parameter；
Further, the calculation method of the specific steam enthalpy includes:
Obtain steam generator secondary circuit in secondary circuit of PWR nuclear power plant system model described in the calculating parameter
The vapor (steam) temperature T of sides；
The variation relation being fitted between nuclear steam turbine main steam specific enthalpy and temperature, and obtain fitting coefficient k0、k1、k2、
k3；
Since the main steam of nuclear steam turbine is wet saturated steam, relative humidity is stablized 100%, and therefore, enthalpy is bent
Line can not consider that humidity variation bring influences.Then, when being fitted specific steam enthalpy enthalpy curve, it can not consider humidity variation
It influences, but need to consider that pressure factor influences；The fit approach can use least square method.Therefore, the present invention is in power train
In dynamic simulation practical application of uniting, specific steam enthalpy is simulated using matched curve；
The specific steam enthalpy value h according to temperature computations；Pressure factor, the calculation formula are considered simultaneously are as follows:
Further, the calculation method of the total steam flow includes:
Obtain the specified main steam flow f of steam turbinestmnAnd compacted clay liners two described in the calculating function return
The effective steam demand coefficient k of steam turbine in the system model of roadseWith heat-extraction system steam flow f by steam turbinestm2；
Total steam flow is determined by steam generator secondary circuit side, and is opened by effective steam demand limiting element, regulating valve
The influence of pressure difference before and after degree and valve；The calculating of nuclear power unit model total steam flow in the present invention, by setting valve stream
Fair curve is measured, and effective steam demand limitation is defined with the proportional component with clipping；
Calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
Calculate practical total steam flow fstm, total steam flow fstmFor the steam turbine main steam flow and institute
State the sum of other heat-extraction system steam flow；
Further, the calculation method of the water supply specific enthalpy includes:
Obtain the total steam flow fstm；The main steam flow fstmIt is calculated and is obtained by previous step；
The water supply specific enthalpy actual characteristic is complex, with water supply system low-pressure heater, high-pressure heater and deoxygenation
The multiple equipments such as device are closely related；In simplified model of the invention, mainly influenced by extraction flow of steam according to water supply process, and
The closely related feature of the power level of extraction flow of steam and unit, using unit heat balance diagram, according to power of the assembling unit level
Water supply specific enthalpy is fitted with segmented mode；
Steam generator secondary circuit side water supply specific enthalpy h is fitted using segmented modew, fitting coefficient k is calculated4、k5；
Calculate steam generator secondary circuit side water supply specific enthalpy hw, the calculating of steam generator secondary circuit side water supply specific enthalpy
Mode are as follows: hw=k4+k5fstm；
It calculated according to steam generator secondary circuit side water supply specific enthalpy by inertial element, be sent to steam generator participation
The practical water supply specific enthalpy h that secondary circuit calculatesinAre as follows:
Further, the calculation method of the final porthole output power includes:
According to the long secondary circuit power of previous step and unit heat balance diagram acquisition secondary circuit in this step-length electrical data
Thermal efficiency η；
Turbine thermodynamic efficiency is one important indicator of unit efficiency, and the principal element for influencing the thermal efficiency includes initial steam ginseng
Number, exhaust steam pressure and the effective enthalpy drop of steam and the ratio of isentropic enthalpy drop etc.；
In the present invention, unit heat balance diagram is used to calculate the thermal efficiency for tool, and make appropriate amendment, to compensate to secondary circuit
The error that thermal procession equivalent modeling generates；In the present embodiment, table 1 gives unit heat of the reference unit under different capacity
Efficiency:
Obtain the specific steam enthalpy h of secondary circuits, water supply specific enthalpy hin, steam turbine main steam flow fstm1And steam turbine is specified
Power PM0；
The final porthole output power PGVCalculation formula are as follows:
Fig. 2 is a kind of compacted clay liners one of the specific embodiment of the invention, secondary coolant circuit system transmitting power analog
The structure chart of system, as shown in Fig. 2, the system comprises:
Initialization unit 210, the initialization unit 210 is for initializing the compacted clay liners parameter
Setting；
Electrical data computing unit 220, the electrical data computing unit 220 calculate this step-length according to preset rules
Electrical data；
Further, the electrical data computing unit 220 is long interior including calculating parameter and final by previous step
The parameter of porthole output power calculates the electrical data for obtaining this step-length according to the numerical integration algorithm of setting；
Model computing unit 230, the model computing unit 230 are used for the primary Ioops system mould to compacted clay liners
Type and secondary coolant circuit system model are solved, and calculating parameter is obtained；The calculating parameter includes steam generator secondary circuit side
Vapor (steam) temperature Ts, the effective steam demand coefficient k of steam turbinesAnd heat-extraction system steam flow f by steam turbinestm2；
Further, the model computing unit 230 passes through to the primary Ioops system model and secondary coolant circuit system mould
Type carries out cross-iteration and solves acquisition calculating parameter；
The model computing unit 230 passes through the primary Ioops of the electrical data to the compacted clay liners of this step-length
System model and secondary coolant circuit system model are solved；
COMPREHENSIVE CALCULATING unit 240, the COMPREHENSIVE CALCULATING unit 240 are used for the calculating using model computing unit output
Parameter calculates porthole output power final in compressed water reactor nuclear power system model；
Further, the COMPREHENSIVE CALCULATING unit 240 is used to calculate the steam in corresponding step-length according to the calculating parameter
Specific enthalpy, water supply specific enthalpy and total steam flow；
Further, the COMPREHENSIVE CALCULATING unit 240 is for calculating the specific steam enthalpy；
The COMPREHENSIVE CALCULATING unit 240 secondary circuit of PWR nuclear power plant system model according to the calculating parameter
The vapor (steam) temperature T of middle steam generator secondary circuit sides, it is fitted the variation pass between nuclear steam turbine main steam specific enthalpy and temperature
System, and obtain fitting coefficient k0、k1、k2、k3；
The COMPREHENSIVE CALCULATING unit 240 specific steam enthalpy value h according to temperature computations；The calculation formula are as follows:
Further, the COMPREHENSIVE CALCULATING unit 240 is for calculating the total steam flow；
The COMPREHENSIVE CALCULATING unit 240 is according to the specified main steam flow f of steam turbinestmnAnd described in the calculating function
The effective steam demand coefficient k of steam turbine in secondary circuit of PWR nuclear power plant system modelsWith heat-extraction system steam stream by steam turbine
Measure fstm2, calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
The COMPREHENSIVE CALCULATING unit 240 is used to calculate practical total steam flow fstm, total steam flow fstmFor
The sum of the steam turbine main steam flow and the other heat-extraction system steam flow；
Further, the COMPREHENSIVE CALCULATING unit 240 is for calculating the water supply specific enthalpy；
The COMPREHENSIVE CALCULATING unit 240 obtains the total steam flow fstm, steam generator two is fitted using segmented mode
Circuit side water supply specific enthalpy hw, fitting coefficient k is calculated4、k5；
The COMPREHENSIVE CALCULATING unit 240 is for calculating steam generator secondary circuit side water supply specific enthalpy hw, the steam generation
The calculation of device secondary circuit side water supply specific enthalpy are as follows: hw=k4+k5fstm；
The COMPREHENSIVE CALCULATING unit 240 is calculated according to steam generator secondary circuit side water supply specific enthalpy passes through inertia rings
It saves, be sent to the practical water supply specific enthalpy h that steam generator participates in secondary circuit calculatinginAre as follows:
Further, the COMPREHENSIVE CALCULATING unit 240 is used for two times long according to the previous step in this step-length electrical data
Road power and unit heat balance diagram obtain secondary circuit thermal efficiency η；
The COMPREHENSIVE CALCULATING unit 240 is for calculating the final porthole output power PGV；The final porthole output work
Rate PGVCalculation formula are as follows:
Wherein, hsFor specific steam enthalpy, hinFor water supply specific enthalpy, fstm1For steam turbine main steam flow, PM0It is specified for steam turbine
Power.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the disclosure
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.The step of being related in this specification, which numbers, is only used for distinguishing each step, and the time being not limited between each step
Or the relationship of logic, restriction unless the context clearly, otherwise the relationship between each step includes the case where various possible.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means to be in the disclosure
Within the scope of and form different embodiments.For example, embodiment claimed in detail in the claims is one of any
Can in any combination mode come using.
The various component embodiments of the disclosure can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.The disclosure is also implemented as executing side as described herein
The some or all equipment or system program (for example, computer program and computer program product) of method.It is such
It realizes that the program of the disclosure can store on a computer-readable medium, or can have the shape of one or more signal
Formula.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or with any other shape
Formula provides.
The disclosure is limited it should be noted that above-described embodiment illustrates rather than the disclosure, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.Word "comprising" is not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The disclosure can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.If several in these systems can be by same in the unit claim for listing dry systems
Hardware branch embodies.
The above is only the specific embodiment of the disclosure, it is noted that for the ordinary skill people of this field
Member for, do not depart from the disclosure spirit under the premise of, can make several improvements, modify and deform, these improve, modification,
It is regarded as falling within the scope of protection of this application with deformation.
Claims (16)
1. a kind of compacted clay liners one, secondary coolant circuit system transmit power analog method, which comprises
Initialize installation is carried out to the compacted clay liners parameter；
The electrical data in current step is obtained according to preset rules；
The primary Ioops system model and secondary coolant circuit system model of compacted clay liners are solved, calculating parameter is obtained；
The calculating parameter includes the vapor (steam) temperature T of steam generator secondary circuit sides, the effective steam demand coefficient k of steam turbineseAnd vapour
Heat-extraction system steam flow f by turbinestm2；
Porthole output power final in compressed water reactor nuclear power system model is calculated using the calculating parameter；The final vapour
Door output power is compacted clay liners one, secondary coolant circuit system transmitting power.
2. according to the method described in claim 1, it is characterized by: described utilize the calculating parameter to compressed water reactor nuclear power system
Final porthole output power is calculated in model, including calculated according to the calculating parameter specific steam enthalpy in corresponding step-length,
Water supply specific enthalpy, steam turbine main steam flow and total steam flow.
3. according to the method described in claim 2, it is characterized by: the calculation method of the specific steam enthalpy includes:
Obtain steam generator secondary circuit side in secondary circuit of PWR nuclear power plant system model described in the calculating parameter
Vapor (steam) temperature Ts；
The variation relation being fitted between nuclear steam turbine main steam specific enthalpy and temperature, and obtain fitting coefficient k0、k1、k2、k3；
The specific steam enthalpy value h according to temperature computations；Pressure factor, the calculation formula are considered simultaneously are as follows:
4. according to the method described in claim 2, it is characterized by: the calculation method of the total steam flow includes:
Obtain the specified main steam flow f of steam turbinestmnAnd secondary circuit of PWR nuclear power plant system described in the calculating function
The effective steam demand coefficient k of steam turbine in modelseWith heat-extraction system steam flow f by steam turbinestm2；
Calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
Calculate practical total steam flow fstm, total steam flow fstmFor the steam turbine main steam flow and the other row
The sum of System steam flow.
5. according to the method described in claim 4, it is characterized by: the calculation method of the water supply specific enthalpy includes:
Obtain total steam flow fstm；
Steam generator secondary circuit side water supply specific enthalpy h is fitted using segmented modew, fitting coefficient k is calculated4、k5；
Calculate steam generator secondary circuit side water supply specific enthalpy hw, the calculation of steam generator secondary circuit side water supply specific enthalpy
Are as follows: hw=k4+k5fstm；
It calculated according to steam generator secondary circuit side water supply specific enthalpy by inertial element, be sent to steam generator participation two times
The practical water supply specific enthalpy h that road calculatesinAre as follows:
6. according to the method described in claim 2, it is characterized by: the calculation method of the final porthole output power includes:
According to the long secondary circuit power of previous step and unit heat balance diagram acquisition secondary circuit thermal effect in this step-length electrical data
Rate η；
Obtain the specific steam enthalpy h of secondary circuits, water supply specific enthalpy hin, steam turbine main steam flow fstm1And steam turbine rated power
PM0；
The final porthole output power PGVCalculation formula are as follows:
7. according to the method described in claim 1, it is characterized by: the calculating parameter passes through to the primary Ioops system model
And secondary coolant circuit system model carries out cross-iteration and solves acquisition.
8. according to the method described in claim 1, it is characterized by: the electrical data of described step-length is by the long interior packet of previous step
The parameter for including calculating parameter and final porthole output power calculates acquisition according to the numerical integration algorithm of setting；The presurized water reactor
The primary Ioops system model and secondary coolant circuit system model of nuclear power unit are solved according to the electrical data of this step-length.
9. a kind of compacted clay liners one, secondary coolant circuit system transmit power analog system, the system comprises:
Initialization unit, the initialization unit are used to carry out Initialize installation to the compacted clay liners parameter；
Electrical data computing unit, the electrical data computing unit calculate the electrical quantity number of this step-length according to preset rules
According to；
Model computing unit, the model computing unit are used for the primary Ioops system model of compacted clay liners and two times
Road system model is solved, and calculating parameter is obtained；The calculating parameter includes the vapor (steam) temperature of steam generator secondary circuit side
Ts, the effective steam demand coefficient k of steam turbineseAnd heat-extraction system steam flow f by steam turbinestm2；
COMPREHENSIVE CALCULATING unit, the COMPREHENSIVE CALCULATING unit are used for the calculating parameter using model computing unit output to pressure water
Final porthole output power is calculated in heap nuclear power system model, and exports the final porthole output power as presurized water reactor
Nuclear power unit one, secondary coolant circuit system transmit power.
10. system according to claim 9, it is characterised in that: the COMPREHENSIVE CALCULATING unit is used to be joined according to the calculating
Number calculates specific steam enthalpy, water supply specific enthalpy and the total steam flow in corresponding step-length.
11. system according to claim 10, it is characterised in that: the COMPREHENSIVE CALCULATING unit is for calculating the steam ratio
Enthalpy；
Steam in COMPREHENSIVE CALCULATING unit secondary circuit of PWR nuclear power plant system model according to the calculating parameter
The vapor (steam) temperature T of generator secondary circuit sides, the variation relation being fitted between nuclear steam turbine main steam specific enthalpy and temperature, and obtain
Obtain fitting coefficient k0、k1、k2、k3；
COMPREHENSIVE CALCULATING unit specific steam enthalpy value h according to temperature computations；The calculation formula are as follows:
12. system according to claim 10, it is characterised in that: the COMPREHENSIVE CALCULATING unit is for calculating total steam
Flow；
The COMPREHENSIVE CALCULATING unit is according to the specified main steam flow f of steam turbinestmnAnd presurized water reactor core described in the calculating function
The effective steam demand coefficient k of steam turbine in motor group secondary coolant circuit system modelseWith heat-extraction system steam flow f by steam turbinestm2, meter
Calculate steam turbine main steam flow fstm1；The calculation method of the main steam flow is fstm1=ksefstmn；
The COMPREHENSIVE CALCULATING unit is used to calculate practical total steam flow fstm, total steam flow fstmFor the steamer
The sum of owner's steam flow and the other heat-extraction system steam flow.
13. system according to claim 12, it is characterised in that: the COMPREHENSIVE CALCULATING unit is for calculating the water supply ratio
Enthalpy；
The COMPREHENSIVE CALCULATING unit obtains total steam flow fstm, the side water supply of steam generator secondary circuit is fitted using segmented mode
Specific enthalpy hw, fitting coefficient k is calculated4、k5；
The COMPREHENSIVE CALCULATING unit is for calculating steam generator secondary circuit side water supply specific enthalpy hw, the steam generator secondary circuit
The calculation of side water supply specific enthalpy are as follows: hw=k4+k5fstm；
The COMPREHENSIVE CALCULATING unit calculates by inertial element according to steam generator secondary circuit side water supply specific enthalpy, is sent to steaming
Vapour generator participates in the practical water supply specific enthalpy h that secondary circuit calculatesinAre as follows:
14. system according to claim 10, it is characterised in that:
The COMPREHENSIVE CALCULATING unit is used for according to the long secondary circuit power of previous step and unit heat in this step-length electrical data
Balance chart obtains secondary circuit thermal efficiency η；
The COMPREHENSIVE CALCULATING unit is for calculating the final porthole output power PGV；The final porthole output power PGVMeter
Calculate formula are as follows:
Wherein, hsFor specific steam enthalpy, hinFor water supply specific enthalpy, fstm1For steam turbine main steam flow, PM0For steam turbine rated power.
15. system according to claim 9, it is characterised in that: the model computing unit passes through to the primary Ioops system
System model and secondary coolant circuit system model carry out cross-iteration and solve acquisition calculating parameter.
16. system according to claim 9, it is characterised in that: the electrical data computing unit is long by previous step
The interior parameter including calculating parameter and final porthole output power is calculated according to the numerical integration algorithm of setting obtains this step-length
Electrical data；
The model computing unit passes through the primary Ioops system mould of the electrical data to the compacted clay liners of this step-length
Type and secondary coolant circuit system model are solved.
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