CN106803436B - The verification method and device of nuclear power plant's standby accident mitigation power supply accident application function - Google Patents
The verification method and device of nuclear power plant's standby accident mitigation power supply accident application function Download PDFInfo
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- CN106803436B CN106803436B CN201510837323.0A CN201510837323A CN106803436B CN 106803436 B CN106803436 B CN 106803436B CN 201510837323 A CN201510837323 A CN 201510837323A CN 106803436 B CN106803436 B CN 106803436B
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The present invention is suitable for technical field of nuclear power safety, provides a kind of verification method and device of nuclear power plant's standby accident mitigation power supply accident application function, this method includes：Water pressure test power-supply system is connect with additional accident mitigation power-supply system, and using the current supply circuit of water pressure test power-supply system as the current supply circuit of additional accident mitigation power-supply system；The supply voltage of additional accident mitigation power supply is introduced into power supply control panel, its supply voltage is made to be sent to hydraulic testpump load, to drive hydrostatic test pump operating；Window is tested by setting, operation test is carried out to hydraulic testpump, and obtain experimental data；The stability for adding accident mitigation power supply is verified according to experimental data.The present invention realizes the verification of the stability to adding accident mitigation power supply, improves the emergency disposal ability and reaction speed of accident, reduce Nuclear Safety hidden danger using accident mitigation power supply is added to hydraulic testpump power supply to start water pressure test pump operation.
Description
Technical field
The invention belongs to technical field of nuclear power safety more particularly to a kind of nuclear power plant's standby accident mitigation power supply accident applications
The verification method and device of function.
Background technology
Unluckily Fukushima core crisis has been broken out in afternoon on March 11st, 2011, Japan, due to outer incoming call caused by earthquake
Source powers off, and spare diesel-driven generator is also destroyed by tsunami,, can not due to losing power supply although having kept nuclear reactor
The cooling water source for maintaining reactor causes core meltdown, and workshop explosion occurs, and a large amount of radioactive substances leak, cause very
Serious consequence.Therefore determine that configuration adds accident mitigation power supply and is used as in super design basis accident in crash analysis thereafter
Afterwards, the standby means of alleviation accident, to improve the Emergency System construction under extreme case to stand-by power supply, improve burst thing
Part emergency disposal ability and reaction speed.
Nuclear power station so how to be ensured in the case where losing external power supply, while losing nuclear power plant's original system again and setting
In the case of counting emergency power supply, even power again with the relevant important load of nuclear safety to above-mentioned critical load, will set again
It is standby to start operation, then it needs to be verified for electrically activating operation by using additional accident mitigation Power supply belt dynamic water pressure test pump.
Since additional accident mitigation power supply is only as after super design basis accident, the standby means of alleviation accident are led to
Frequently with do not influence or do not change original critical system control mode be best equipping rules.And start hydraulic testpump not only
It needs electrical source of power to meet power reguirements, also while needing being linked for former hydraulic testpump control loop.But due to hydraulic pressure
Experiment shares the public power source tray that power supply 9LLS system power supplies are two units of nuclear power plant, and hydraulic testpump load is similarly two
Nuclear power generating sets public load, under normal circumstances, 9LLS public powers source tray and hydraulic testpump load it is unavailable, will directly affect
Related nuclear power generating sets level of security state, or even related nuclear power operating status is caused to adjust.
Therefore, the core unit for sharing power supply disks is realized there is presently no specific scheme and adds the steady of accident mitigation power supply
Qualitative test, and then the effect of additional accident mitigation power supply can not be effectively verified, seriously affect the emergency disposal of accident
Ability and reaction speed cause Nuclear Safety hidden danger.
Invention content
The embodiment of the present invention is designed to provide a kind of testing for nuclear power plant's standby accident mitigation power supply accident application function
Card method, it is intended to solve at present not realizing the core unit for sharing power supply disks the stability test for adding accident mitigation power supply
Problem.
The embodiment of the present invention is achieved in that a kind of verification of nuclear power plant's standby accident mitigation power supply accident application function
Method, the method includes following step：
Independently arranged water pressure test power-supply system is connect with additional accident mitigation power-supply system, and the hydraulic pressure is tried
Test current supply circuit of the current supply circuit of power-supply system as the additional accident mitigation power-supply system, water pressure test power supply system
The current supply circuit of system is connect with the power supply control panel that million kilowatt nuclear power unit shares；
Switched described in supply voltage introducing of the power-supply service interface by the additional accident mitigation power supply by additional supply
Power supply control panel；
The supply voltage of additional accident mitigation power supply is sent to hydraulic testpump load by the power supply control panel, with driving
The motor operating of hydrostatic test pump；
Window is tested by setting, operation test is carried out to the hydraulic testpump, and obtain experimental data；
The stability of the additional accident mitigation power supply is verified according to the experimental data.
Further, the supply voltage of additional accident mitigation power supply is sent to hydraulic testpump and born by the power supply control panel
The step of lotus is specially：
First start the additional accident mitigation power-supply system to await orders；
Restart million kilowatt and shares the power supply control disc system of nuclear power generating sets to drive the motor of hydraulic testpump to transport
Turn.
Further, described the step of carrying out operation test to the hydraulic testpump by setting experiment window, is specific
For：
Nuclear power generating sets are simulated under full factory's dead electricity operating mode of design basis accident, related process valve, closes instrument controller
The action sequence and logic of lock signal, setting experiment window；
The control loop and logical relation of the hydraulic testpump are verified according to the experiment window.
Further, when one of the million kilowatt nuclear power unit of shared power supply disks carries out large repairs, by the additional thing
Therefore the supply voltage for alleviating power supply introduces the another of the million kilowatt nuclear power unit for sharing power supply disks.
Further, the stability for verifying the additional accident mitigation power supply includes that verification adds accident mitigation power supply system
The load capacity united after bearing repeatedly to start impact and load variation.
The another object of the embodiment of the present invention is to provide a kind of nuclear power plant's standby accident mitigation power supply accident application function
Verification device, described device includes：
Additional supply switches power-supply service interface, and the additional supply switching power-supply service interface is connected to independently arranged
Between water pressure test power-supply system and additional accident mitigation power-supply system, the current supply circuit of the water pressure test power-supply system is made to make
For the current supply circuit of the additional accident mitigation power-supply system, to which the supply voltage of the additional accident mitigation power supply be introduced
The power supply control panel, the power supply control that the current supply circuit of the water pressure test power-supply system is shared with million kilowatt nuclear power unit
Disk connection processed；
Control unit is transmitted, the power supply control panel is controlled and the supply voltage of additional accident mitigation power supply is sent to hydraulic pressure
Test pump load is operated with the motor for driving hydrostatic test to pump, and the transmission control unit is connect with the power supply control panel；
Window setting unit carries out the hydraulic testpump for experiment window to be arranged, and by the experiment window
Operation test, and experimental data is obtained, the window setting unit is connect with the water pressure test power-supply system；
Data verification units, the stability for verifying the additional accident mitigation power supply according to the experimental data, institute
Data verification units are stated to connect with the window setting unit.
Further, the transmission control unit includes：
First starting module is awaited orders for first starting the additional accident mitigation power-supply system；
Second starting module is shared for after the additional accident mitigation power-supply system is awaited orders, starting million kilowatt
The power supply of nuclear power generating sets controls disc system to drive the motor of hydraulic testpump to operate.
Further, the window setting unit includes：
Simulate setup module, for simulating nuclear power generating sets under full factory's dead electricity operating mode of design basis accident, related process
Valve, instrument controller, the action sequence of block signal and logic, setting experiment window；
Logic checking module, for the control loop and logical relation according to the experiment window to the hydraulic testpump
It is verified.
Further, the additional supply switching power-supply service interface is in the million kilowatt nuclear power machine for sharing power supply disks
When one of group carries out large repairs, the supply voltage of the additional accident mitigation power supply is introduced to the million kilowatt core for sharing power supply disks
Motor group it is another.
Further, the stability that the data verification units verify the additional accident mitigation power supply includes that verification is attached
Add load capacity of the accident mitigation power-supply system after bearing repeatedly to start impact and load variation.
The embodiment of the present invention utilizes existing nuclear power plant's water pressure test power-supply system supplying channels and original water pressure test control
Channel processed is controlled using former nuclear power generating sets load system and the additional matched mode of accident mitigation power supply and is added accident mitigation
Power supply is powered to hydraulic testpump, starts hydraulic testpump motor operation, and then the additional thing of the core unit to sharing power supply disks
Therefore the stability for alleviating power supply realizes verification, improves the emergency disposal ability and reaction speed of accident, reduces nuclear power peace
Full hidden danger.
Description of the drawings
Fig. 1 is the authentication for nuclear power plant's standby accident mitigation power supply accident application function that first embodiment of the invention provides
The flowage structure figure of method；
Fig. 2 is the authentication for nuclear power plant's standby accident mitigation power supply accident application function that second embodiment of the invention provides
The flowage structure figure of method；
Fig. 3 is the verification device of nuclear power plant's standby accident mitigation power supply accident application function provided in an embodiment of the present invention
Structure chart；
Fig. 4 is the verification device of nuclear power plant's standby accident mitigation power supply accident application function provided in an embodiment of the present invention
Preferred structure figure；
Fig. 5 is that high-capacity battery energy-storage system provided in an embodiment of the present invention supply shares the electrical cabinet startup water pressure test
Pump the waveform of 9RIS011PO on-line operation test results；
Fig. 6 is water pressure test pump motor stoppage in transit waveform provided in an embodiment of the present invention；
Fig. 7 is that normal emergency power system supply provided in an embodiment of the present invention shares electrical cabinet startup hydraulic testpump
The experiment of 9RIS011PO on-line operations starts the waveform of result；
Fig. 8 is high-capacity battery energy-storage system provided in an embodiment of the present invention power supply separate unit PCS exit potentials and electric current
Waveform；
Fig. 9 is the current waveform of high-capacity battery energy-storage system provided in an embodiment of the present invention power supply outlet.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
The embodiment of the present invention utilizes existing nuclear power plant's water pressure test power-supply system supplying channels and original water pressure test control
Channel processed is controlled using former nuclear power generating sets load system and the additional matched mode of accident mitigation power supply and is added accident mitigation
Power supply is powered to hydraulic testpump, starts hydraulic testpump motor operation, and then the additional thing of the core unit to sharing power supply disks
Therefore the stability for alleviating power supply realizes verification, improves the emergency disposal ability and reaction speed of accident, reduces nuclear power peace
Full hidden danger.
Fig. 1 shows the attached of the million kilowatt nuclear power unit based on shared power supply disks that first embodiment of the invention provides
The flowage structure for adding the stability verification method of accident mitigation power supply, includes the following steps：
In step S101, independently arranged water pressure test power-supply system is connect with additional accident mitigation power-supply system,
And using the current supply circuit of water pressure test power-supply system as the current supply circuit of additional accident mitigation power-supply system, water pressure test power supply
The current supply circuit of system is connect with the power supply control panel that million kilowatt nuclear power unit shares；
In embodiments of the present invention, it is fixed power-supply system as added accident mitigation power supply, fixed electricity can be designed herein
Cable channel, using fixed cable connection, such as additional accident mitigation power supply is mobile power-supply system, and mobile electricity can be used herein
Cable is attached.
In step s 102, power-supply service interface is switched by the supply voltage of additional accident mitigation power supply by additional supply
Introduce power supply control panel；
In step s 103, the supply voltage of additional accident mitigation power supply is sent to hydraulic testpump and born by power supply control panel
Lotus is operated with the motor for driving hydrostatic test to pump；
In step S104, window is tested by setting, operation test is carried out to hydraulic testpump, and obtain experimental data；
In step S105, the stability for adding accident mitigation power supply is verified according to experimental data.
As an embodiment of the present invention, the stability for verifying the additional accident mitigation power supply includes that the additional accident of verification is slow
Load capacity of the solution power-supply system after bearing repeatedly to start impact and load variation.
In embodiments of the present invention, by taking the water pressure test shares power supply 9LLS systems as an example, current supply circuit relies on the water pressure test
Additional accident mitigation power-supply system exchange 380V power supplys are introduced to 9LLS and share power supply control panel by power-supply system supplying channels,
Power supply control panel is shared by 9LLS, power supply is sent to hydraulic testpump load, driving water pressure test pump motor operating.And it adds
Accident mitigation power-supply system and the control logic and principle of water pressure test power-supply system and hydraulic testpump load system are
It is mutually independent, it is independent of each other, therefore can be with using original 9LLS power supplys control panel (such as public power switch board 9LLS001AR)
It realizes and is isolated under full factory's dead electricity operating mode by electricity, the automatic intrinsic design feature for starting control signal and action logic is realized
9LLS power supplys control panel starts water pressure test pump operation after obtaining the power supply supply of additional accident mitigation power-supply system.
Public power switch board 9LLS001AR is the equipment that No. 1 unit and No. 2 units share in embodiments of the present invention,
It powers as the hydraulic testpump 9RIS011PO shared to No. 1 unit and No. 2 units and controls hydraulic testpump 9RIS011PO
The controller switching equipment of operation.
During hydraulic testpump is daily or overhaul routine test, 380V normal communication power supplys are shared from nuclear power generating sets
System 9LKI verifies additional accident mitigation power-supply system and bears to the switchover operation logic of water pressure test power-supply system switching power supply
Repeatedly start the load capacity of impact and load variation.
As an embodiment of the present invention, it can carry out large repairs in one of the million kilowatt nuclear power unit for sharing power supply disks
When, the supply voltage of additional accident mitigation power supply is introduced to the another of the million kilowatt nuclear power unit for sharing power supply disks.
In embodiments of the present invention, since hydraulic testpump operation test can cause related first group of nuclear power generating sets note defeated
Enter/output signal limitation, can select combining two to influence the safety operation level of nuclear power, therefore be arranged to test window
A certain major overhaul of nuclear power generating sets, and arrange the verification window after the completion of hydraulic testpump regular maintenance, reduce in this way because
The influence for additional first group of input/output signal restrictive condition of note that test tape comes.
It is illustrated below by way of specific embodiment：
After determining that additional accident mitigation power supply is in stoppage in transit state, nuclear power generating sets can be according to the arrangement of experiment window
Principle has experimental condition.Then power-supply service interface is switched by additional supply and additional accident mitigation power supply is connected to hydraulic pressure
On experiment power supply system, and after disconnecting and adding accident mitigation power supply power supply gate out switch, carry out add accident mitigation power supply to
Hydraulic testpump is online for adding accident mitigation power-supply system before electric test；Then it is opened by disconnecting water pressure test power-supply system
Water pressure test power-supply system emergency outage button is pressed in dynamic circuit, stop transport isolation water pressure test power-supply system steam turbine or diesel oil
Electromechanical source, progress hydraulic testpump load process system is online, and power supply box control system experimental condition is online, then carries out public power
The power-supply system supplying channels supply access condition of No. 2 unit power supply 2LLS of source switch board 9LLS001AR and the water pressure test is online.
Start and add accident mitigation power-supply system subsystem, is opened with being added outside accident mitigation power-supply system by simulation
Dynamic signal manually starts main power source supply, establishes the exchange 380Vac supply voltages for adding accident mitigation power supply, then starts to hold
Row water pressure test pump testing test operation, and start to calculate first group of I0 restrictive conditions limitation time of water pressure test pump testing.
It is public that combined floodgate nuclear power generating sets share 380V normal communications 107 numbering device 9LKI-107 hydraulic testpumps of power-supply system
Electrical power control cabinet normal power source；Using 9LLS utility power switch board control logics and signal, start hydraulic testpump
9RIS011PO is run；Then it on intermediate control room console, operates corresponding nuclear power generating sets water pressure test power-supply system startup and presses
Button, that simulates that normal full factory's dead electricity meets an urgent need water pressure test power-supply system enabling signal under operating mode sends out that (raw water presses experiment power supply system
System should be isolated and can not be started in advance, can only receive enabling signal, and present embodiment can be with real simulation in super design
Under base operation condition, all power supplys of nuclear power plant, including emergency power supply total loss, it needs to enable additional accident mitigation power-supply system
Situation), it, can effectively mould using this kind of mode since water pressure test power-supply system primitive logic is designed as dead electricity logic
Ni Quan factories lose under design conditions the emergency bus power supply of (SBO, Station Block-Out, nuclear power plant's station blackout accident)
Lose H3 (nuclear power plant's station blackout accident) signal, control related process valve, instrument controller, block signal action sequence
With logic, ensure that adding accident mitigation power-supply system starts hydraulic testpump process system, signal system condition is in accident conditions
Under service condition have；It closes a floodgate and adds accident mitigation power supply power supply gate out switch 2LPS302JA, carry out and add accident mitigation electricity
Source powers to hydraulic testpump for electric test, and the water pressure test power-supply system power supply of No. 2 unit power supply 2LLS of the former water pressure test is logical
Road will automatic monitoring supplying channels voltage there are situation, realize the automatic switchover logic in electrical source of power circuit, and then by additional thing
Therefore the power supply supply for alleviating power supply is introduced into utility power switch board 9LLS001AR；The 9LLS public power switch boards pass through it
In the case where full factory's dead electricity operating mode occurs for a certain nuclear power generating sets, supplied by corresponding nuclear power generating sets water pressure test power-supply system emergency starting
Electricity is isolated by electric logic, and automatic start controls signal and action logic, share 380V normal communication power supplys from nuclear power generating sets automatically
The condition of the hydraulic testpump 9RIS011PO operations of system 9LKI power supply bands, switches to by corresponding nuclear power generating sets water pressure test electricity
The condition of source system power supply channel power supply restarts again the 9RIS011PO operations of band hydraulic testpump, final to realize that 9LLS is public
Pass through the power supply supply belt water pressure test pump operation by adding accident mitigation power-supply system with electrical power control cabinet；To additional accident
The power supply supply belt hydraulic testpump Operation trial for alleviating power-supply system terminates；
Control button 9LLS022TO is disconnected using 9LLS public power switch board inlet wire contactors, take the lead in the examination of stoppage in transit hydraulic pressure
Test pump operation；On intermediate control room console, corresponding nuclear power generating sets water pressure test power-supply system stoppage in transit button is operated, simulation is just
(raw water presses experiment power supply system Ying Yin untrue for the disappearance of water pressure test power-supply system enabling signal under the emergent operating mode of Chang Quan factories dead electricity
Real to start, the enabling signal only received disappears), since water pressure test power-supply system primitive logic is designed as dead electricity logic, because
This effectively the full factory of simulation can lose under design conditions that (SBO, Station Block-Out, nuclear power plant are complete using this kind of mode
Factory's loss of power accident) emergency bus power supply lose H3 (nuclear power plant's station blackout accident) signal, voltage signal restores again, control
Related process valve processed, instrument controller, the action sequence of block signal and logic are restored to the requirement of nuclear power generating sets normal operation
Equipment state.Ensure that adding accident mitigation power-supply system starts hydraulic testpump after the test, related auto-action is set
Standby or system mode is normally restored；Same operation plus accident mitigation power supply power supply gate out switch 2LPS302JA are disconnected, and are stopped additional
Accident mitigation power supply power supply exports, and simulates additional accident mitigation power supply power supply and terminates, to complete to execute water pressure test pump testing
Test operation, and stop calculating first group of I0 restrictive conditions limitation time of water pressure test pump testing.
It executes the system after adding accident mitigation Power supply belt hydraulic testpump 9RIS011PO startup operation tests and restores behaviour
Make, restores related system or equipment in original state；Additional accident mitigation Power supply belt hydraulic testpump 9RIS011PO starts operation
Off-test.
As an embodiment of the present invention, during being tested integral load by external wave recording device during verification
Electric power thus supplied recorded, to consult after being tested.
Fig. 5 shows that the supply of high-capacity battery energy-storage system shares electrical cabinet startup hydraulic testpump 9RIS011PO and exists
The waveform of line operation test result respectively illustrates shared power cabinet and shares resistor current waveform, water pressure test pump motor current
Waveform shares power cabinet generator inlet voltage waveform and shared power cabinet power rail voltage waveform, wherein for sharing
Power cabinet key power parameter carries out recording monitoring with key emergency service load operation waveform, to confirm that additional power supply of alleviating leads to
The correct logical relation for sharing power cabinet emergency starting hydraulic testpump and verification validity are crossed, it is specific as follows：
1) before the T0 times, alleviation power supply energy-storage system is not actuated by LLS loop power supplies, and hydraulic testpump passes through core
Motor group shares 107 numbering device 9LKI-107 normal power source power transmissions of 380V normal communications power-supply system, and starts the water pressure test
Pump normal operation；
2) in the T0 times, alleviate the startup of power supply energy-storage system and powered to shared electrical cabinet by the circuits LLS, share electrical cabinet
Power import establishes voltage；
3) in T0 to T1 times, shared electrical cabinet starts automatic implementation switchover operation, because sharing electricity during automatic switchover
Gas holder power source bus short-time loss of power supply, hydraulic testpump are stopped transport in short-term during switching, are shared electrical cabinet and are run because of no significant load,
It automatically engages shared electrical cabinet and shares resistance operation for alleviating the load use of power supply energy-storage system；
4) it in the T1 times, shares electrical cabinet power source bus and completes to automatically switch, switching is powered by alleviation power supply energy-storage system；
5) it in T1 to T2 times, shares electrical cabinet power source bus and completes to automatically switch, and hydraulic testpump starts to execute certainly
The preparation of dynamic switchover operation shares electrical cabinet because no significant load is run, and keeps by sharing resistance operation for alleviating power supply
Energy-storage system load uses operation；
6) in the T2 times, hydraulic testpump starts to start, and with larger starting current, shares electrical cabinet immediately because
There are significant load operation, exits and use operation for alleviating the load of power supply energy-storage system by sharing resistance operation；
7) in the T3 times, hydraulic testpump is finally completed startup operation, and waveform changes referring to Fig. 6, the final water pressure test
It is out of service to share resistance by alleviation power supply energy-storage system powered operation for pump.
As can be seen that at A1, it is female to share power cabinet power supply at A2 for the rush of current during hydraulic testpump loads
Line initial voltage about 393V, at A3, fast quick-recovery after power supply mother's voltage declines during load.
8) in T3 to the T4 times, alleviate power supply energy-storage system and continue through public power switch board 9LLS001AR supply water
Press test pump continuous service；
9) in the T4 times, electrical cabinet inlet wire contactor is shared either manually or by disjunction so that share electrical cabinet power source bus and lose
Electricity, and then stoppage in transit hydraulic testpump share electrical cabinet because no significant load is run at this time, keep by sharing resistance operation for alleviating
The load of power supply energy-storage system uses operation；
10) in the T5 times, the involution operation after shared electrical cabinet inlet wire contactor disjunction is carried out for operating personnel, shares electricity
Gas holder re-executes automatically switching operation, but hydraulic testpump and not running；
11) in the T6 times, power supply energy-storage system power supply is alleviated in hand off, is lost at this time because alleviating power supply energy-storage system
It goes to power to shared electrical cabinet by the circuits LLS, shares electrical cabinet power import loss of voltage, share all loads of electrical cabinet and stop
Fortune is restored；
Water pressure test pump motor stoppage in transit waveform is shown in figure 6, it can be seen that at B1, is shared power cabinet and is shared electricity
Resistance restarting alleviates power supply energy-storage system and stops emergency service at B2, at B3, shares power cabinet generator inlet electricity
Pressure disappears.
It is worth noting that during entire experiment, shares electrical cabinet and automatically switch and start sequential and normally answer urgent telegram
The switching that source system supply shares electrical cabinet startup water pressure test pump operation is identical as boot sequence, while by electrical to sharing
Cabinet parameter monitors that the initial busbar voltage 393V of utility power switch board 9LLS001AR are opened by the power supply of alleviation power supply energy-storage system
360V is dropped to by 386V in 2 cycles of dynamic 9RIS112MO moments, is gradually brought to 386V；Frequency stabilization is in 50HZ.And it is current
The water pressure test shares power supply 9LLS system operation regulations：Utility power switch board 9LLS001AR busbar voltages 342~
402.8V；Low-voltage system voltage range is required in RCC-E design specifications：Nominal situation：0.9~1.06Ue, abnormal 0.85~
1.1Ue；Related electric principal parameter meets the service requirement of case of emergency electrical system.
Fig. 7 shows that normal emergency power system supply shares electrical cabinet startup hydraulic testpump 9RIS011PO and transports online
Row experiment starts the waveform of result, including shared power cabinet generator inlet current waveform, shared power cabinet share resistor current
Waveform, shares power cabinet generator inlet voltage waveform and shared power cabinet power source bus at hydraulic testpump motor current waveform
Voltage waveform compares normal emergency power system supply and shares electrical cabinet startup hydraulic testpump 9RIS011PO on-line operations examination
It tests and starts oscillogram (before the T3 times), alleviating emergency power supply and normal emergency power supply can normally start hydraulic testpump,
And operation is supplied, because two other test objectives and mode have differences after the T4 times, will not discuss.Urgent telegram is answered due to being directed to
The most acid test of source system mostlys come from system band and shares the energy that electrical cabinet downstream hydraulic testpump load starts operation
Power is enough fully to demonstrate and alleviates the shared electrical cabinet startup hydraulic testpump of emergency power system supply by experiment
9RIS011PO starts service ability, while demonstrating and alleviating emergency power supply energy-storage system by sharing electrical cabinet startup hydraulic pressure examination
Test the feasibility of pump.
Fig. 8 shows the waveform of high-capacity battery energy-storage system power supply separate unit PCS exit potentials and electric current, can see
Go out, at C1, the voltage responsive of energy-storage system separate unit transverter is without significant change, at C2, water before and after water pressure test pump startup
The current-responsive of energy-storage system separate unit transverter starts when pressure experiment pump startup, and at C3, it is complete that hydraulic pressure water pressure testing tests pump startup
It is completed at the current-responsive of rear energy-storage system separate unit transverter.
Fig. 9 shows the current waveform of high-capacity battery energy-storage system power supply outlet, it can be seen that at D1, hydraulic pressure
The current-responsive powered stable of energy-storage system totality before experiment pump startup, no significant change, at D2, water pressure test pump startup is complete
At powered stable after the completion of the current-responsive of rear energy-storage system totality, at D3, energy-storage system is overall when water pressure test pump startup
Current-responsive start, at D4, after hydraulic testpump start completion energy-storage system totality current-responsive complete.
By the way that high-capacity battery energy-storage system power supply separate unit PCS exit potentials and current waveform (Fig. 8), high power capacity stores
Battery energy storage system power supply exports current waveform (Fig. 9) and shares electrical cabinet startup hydraulic pressure with the supply of high-capacity battery energy-storage system
Test pump 9RIS011PO on-line operation test result waveforms (Fig. 5) compare, and illustrate that the voltage parameter for alleviating emergency power system is rung
It answers situation corresponding to the same with electrical cabinet startup hydraulic testpump 9RIS011PO startup logical sequences together, while alleviating emergent
Power supply energy-storage system voltage can bear the startup impact of hydraulic testpump, without apparent fluctuation and variation, correlated current supply
Ability is normal and stablizes.
The embodiment of the present invention utilizes existing nuclear power plant's water pressure test power-supply system supplying channels and original water pressure test control
Channel processed is controlled using former nuclear power generating sets load system and the additional matched mode of accident mitigation power supply and is added accident mitigation
Power supply is powered to hydraulic testpump, starts hydraulic testpump motor operation, and then the additional thing of the core unit to sharing power supply disks
Therefore the stability for alleviating power supply realizes verification, improves the emergency disposal ability and reaction speed of accident, reduces nuclear power peace
Full hidden danger.
Fig. 2 shows the attached of the million kilowatt nuclear power unit based on shared power supply disks of second embodiment of the invention offer
The flowage structure for adding the stability verification method of accident mitigation power supply, includes the following steps：
In step s 201, independently arranged water pressure test power-supply system is connect with additional accident mitigation power-supply system,
And using the current supply circuit of water pressure test power-supply system as the current supply circuit of additional accident mitigation power-supply system, water pressure test power supply
The current supply circuit of system is connect with the shared power supply control panel of million kilowatt nuclear power unit；
In step S202, power-supply service interface is switched by the supply voltage of additional accident mitigation power supply by additional supply
Introduce power supply control panel；
In step S203, first starts the additional accident mitigation power-supply system and await orders；
In step S204, restarts million kilowatt and share the power supply control panel system of nuclear power generating sets with driving hydraulic pressure examination of uniting
Test the motor operating of pump；
In embodiments of the present invention, it adds accident mitigation power-supply system using first startup to await orders, restarts the progress of LLS systems
The principle of water pressure test pump startup, the input brought due to the intrinsic system or equipment of non-nuclear power generating sets prepares or starts with reduction/
The output signal time wastes, and reduces by first group of input/output signal restrictive condition time application.
In step S205, nuclear power generating sets are simulated under full factory's dead electricity operating mode of design basis accident, related process valve,
Instrument controller, the action sequence of block signal and logic, setting experiment window；
In step S206, the control loop and logical relation of hydraulic testpump are verified according to experiment window, and
Obtain experimental data；
In step S207, the stability for adding accident mitigation power supply is verified according to experimental data.
In embodiments of the present invention, the single nuclear power generating sets that can have been designed using original carry out water pressure test power-supply system day
Normal or overhaul routine test control loop and logical relation, full factory dead electricity operating mode of the simulation nuclear power generating sets in design basis accident
Under, related process valve, instrument controller, the action sequence of block signal and logic, to ensure to add accident mitigation power supply
System starts hydraulic testpump process system, and signal system condition has.
Fig. 3 shows the additional thing of the million kilowatt nuclear power unit provided in an embodiment of the present invention based on shared power supply disks
Therefore alleviate the structure of the stability verification device of power supply, for convenience of description, only the parts related to the present invention are shown.
As an embodiment of the present invention, it is somebody's turn to do the additional accident mitigation of the million kilowatt nuclear power unit based on shared power supply disks
The stability of power supply verifies device：
Additional supply switches power-supply service interface 11, and additional supply switching power-supply service interface 11 is connected to independently arranged
Between water pressure test power-supply system 2 and additional accident mitigation power-supply system 3, the current supply circuit of water pressure test power-supply system 2 is made to make
To add the current supply circuit of accident mitigation power-supply system 3, the supply voltage to add accident mitigation power supply introduces power supply control
Disk processed, the current supply circuit of water pressure test power-supply system 2 are connect with the shared power supply control panel 4 of million kilowatt nuclear power unit；
Control unit 12 is transmitted, the supply voltage of additional accident mitigation power supply is sent to hydraulic pressure examination by control power supply control panel
Pump load is tested, is operated with the motor for driving hydrostatic test to pump, transmission control unit 12 is connect with power supply control panel；
Window setting unit 13 carries out operation examination for experiment window to be arranged, and by testing window to hydraulic testpump
It tests, and obtains experimental data, window setting unit 13 is connect with water pressure test power-supply system；
Data verification units 14, for verifying the stability for adding accident mitigation power supply, data verification according to experimental data
Unit 14 is connect with window setting unit 13.
As an embodiment of the present invention, the stability that the verification of data verification units 14 adds accident mitigation power supply includes verification
Load capacity of the additional accident mitigation power-supply system after bearing repeatedly to start impact and load variation.
In embodiments of the present invention, by taking the water pressure test shares power supply 9LLS systems as an example, current supply circuit relies on the water pressure test
Additional accident mitigation power-supply system exchange 380V power supplys are introduced to 9LLS and share power supply control panel by power-supply system supplying channels,
Power supply control panel is shared by 9LLS, power supply is sent to hydraulic testpump load, driving water pressure test pump motor operating.And it adds
Accident mitigation power-supply system and the control logic and principle of water pressure test power-supply system and hydraulic testpump load system are
It is mutually independent, be independent of each other, using former 9LLS share power supply control panel may be implemented to isolate under full factory's dead electricity operating mode by
Electricity, the automatic intrinsic design feature for starting control signal and action logic realize that 9LLS power supplys control panel is obtaining additional accident
After the power supply supply for alleviating power-supply system, start water pressure test pump operation.
During hydraulic testpump is daily or overhaul routine test, 380V normal communication power supplys are shared from nuclear power generating sets
System 9LKI verifies additional accident mitigation power-supply system and bears to the switchover operation logic of water pressure test power-supply system switching power supply
Repeatedly start the load capacity of impact and load variation.
As an embodiment of the present invention, additional supply switching power-supply service interface 11 is in the million kilowatt for sharing power supply disks
When one of nuclear power generating sets carry out large repairs, the supply voltage of additional accident mitigation power supply is introduced to the million kilowatt for sharing power supply disks
Nuclear power generating sets it is another.
In embodiments of the present invention, since hydraulic testpump operation test can cause related first group of nuclear power generating sets note defeated
Enter/output signal limitation, can select combining two to influence the safety operation level of nuclear power, therefore be arranged to test window
A certain major overhaul of nuclear power generating sets, and arrange the verification window after the completion of hydraulic testpump regular maintenance, reduce in this way because
The influence for additional first group of input/output signal restrictive condition of note that test tape comes.
The embodiment of the present invention utilizes existing nuclear power plant's water pressure test power-supply system supplying channels and original water pressure test control
Channel processed is controlled using former nuclear power generating sets load system and the additional matched mode of accident mitigation power supply and is added accident mitigation
Power supply is powered to hydraulic testpump, starts hydraulic testpump motor operation, and then the additional thing of the core unit to sharing power supply disks
Therefore the stability for alleviating power supply realizes verification, improves the emergency disposal ability and reaction speed of accident, reduces nuclear power peace
Full hidden danger.
Fig. 4 shows the additional thing of the million kilowatt nuclear power unit provided in an embodiment of the present invention based on shared power supply disks
Therefore alleviate the preferred structure of the stability verification device of power supply, for convenience of description, only the parts related to the present invention are shown.
As an embodiment of the present invention, which includes：
First starting module is awaited orders for first starting additional accident mitigation power-supply system；
Second starting module shares nuclear power for after additional accident mitigation power-supply system is awaited orders, starting million kilowatt
The power supply of unit controls disc system to drive the motor of hydraulic testpump to operate.
In embodiments of the present invention, it adds accident mitigation power-supply system using first startup to await orders, restarts the progress of LLS systems
The principle of water pressure test pump startup, the input brought due to the intrinsic system or equipment of non-nuclear power generating sets prepares or starts with reduction/
The output signal time wastes, and reduces by first group of input/output signal restrictive condition time application.
As an embodiment of the present invention, which includes：
Simulate setup module, for simulating nuclear power generating sets under full factory's dead electricity operating mode of design basis accident, related process
Valve, instrument controller, the action sequence of block signal and logic, setting experiment window；
Logic checking module, for being tested the control loop and logical relation of hydraulic testpump according to experiment window
Card.
In embodiments of the present invention, the single nuclear power generating sets that can have been designed using original carry out water pressure test power-supply system day
Normal or overhaul routine test control loop and logical relation, full factory dead electricity operating mode of the simulation nuclear power generating sets in design basis accident
Under, related process valve, instrument controller, the action sequence of block signal and logic, to ensure to add accident mitigation power supply
System starts hydraulic testpump process system, and signal system condition has.
The embodiment of the present invention utilizes existing nuclear power plant's water pressure test power-supply system supplying channels and original water pressure test control
Channel processed is controlled using former nuclear power generating sets load system and the additional matched mode of accident mitigation power supply and is added accident mitigation
Power supply is powered to hydraulic testpump, starts hydraulic testpump motor operation, and then the additional thing of the core unit to sharing power supply disks
Therefore the stability for alleviating power supply realizes verification, improves the emergency disposal ability and reaction speed of accident, reduces nuclear power peace
Full hidden danger.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of verification method of nuclear power plant's standby accident mitigation power supply accident application function, which is characterized in that the method packet
Include following step：
Independently arranged water pressure test power-supply system is connect with additional accident mitigation power-supply system, and the water pressure test is electric
Current supply circuit of the current supply circuit of source system as the additional accident mitigation power-supply system, the water pressure test power-supply system
Current supply circuit is connect with the power supply control panel that million kilowatt nuclear power unit shares；
Switch power-supply service interface by additional supply and the supply voltage of the additional accident mitigation power supply is introduced into the power supply
Control panel；
The supply voltage of additional accident mitigation power supply is sent to hydraulic testpump load by the power supply control panel, to drive hydraulic pressure
The motor of experimental pump operates；
Window is tested by setting, operation test is carried out to the hydraulic testpump, and obtain experimental data；
The stability of the additional accident mitigation power supply is verified according to the experimental data.
2. the method as described in claim 1, which is characterized in that the power supply control panel is by the power supply of additional accident mitigation power supply
Voltage is sent to the step of hydraulic testpump load and is specially：
First start the additional accident mitigation power-supply system to await orders；
Restart the shared power supply of million kilowatt nuclear power unit and controls disc system to drive the motor of hydraulic testpump to operate.
3. the method as described in claim 1, which is characterized in that it is described by setting test window to the hydraulic testpump into
The step of row operation test is specially：
Nuclear power generating sets are simulated under full factory's dead electricity operating mode of design basis accident, related process valve, instrument controller and locking
The action sequence and logic of signal, setting experiment window；
The control loop and logical relation of the hydraulic testpump are verified according to the experiment window.
4. the method as described in claim 1, which is characterized in that share one of million kilowatt nuclear power unit of power supply disks and carry out
When overhaul, the supply voltage of the additional accident mitigation power supply is introduced to the million kilowatt nuclear power unit for sharing power supply control panel
It is another.
5. the method as described in claim 1, which is characterized in that the stability of the verification additional accident mitigation power supply includes testing
Card adds load capacity of the accident mitigation power-supply system after bearing repeatedly to start impact and load variation.
6. a kind of verification device of nuclear power plant's standby accident mitigation power supply accident application function, which is characterized in that described device packet
It includes：
Additional supply switches power-supply service interface, and the additional supply switching power-supply service interface is connected to independently arranged hydraulic pressure
Between experiment power supply system and additional accident mitigation power-supply system, make the current supply circuit of the water pressure test power-supply system as institute
The current supply circuit of additional accident mitigation power-supply system is stated, to which the supply voltage of the additional accident mitigation power supply is introduced power supply
Control panel, the power supply control panel that the current supply circuit of the water pressure test power-supply system is shared with million kilowatt nuclear power unit
Connection；
Control unit is transmitted, the power supply control panel is controlled and the supply voltage of additional accident mitigation power supply is sent to the water pressure test
Load is pumped, is operated with the motor for driving hydrostatic test to pump, the transmission control unit is connect with the power supply control panel；
Window setting unit for experiment window to be arranged, and runs the hydraulic testpump by the experiment window
Experiment, and experimental data is obtained, the window setting unit is connect with the water pressure test power-supply system；
Data verification units, the stability for verifying the additional accident mitigation power supply according to the experimental data, the number
It is connect with the window setting unit according to authentication unit.
7. device as claimed in claim 6, which is characterized in that the transmission control unit includes：
First starting module is awaited orders for first starting the additional accident mitigation power-supply system；
Second starting module, for after the additional accident mitigation power-supply system is awaited orders, starting million kilowatt nuclear power unit
Shared power supply controls disc system to drive the motor of hydraulic testpump to operate.
8. device as claimed in claim 6, which is characterized in that the window setting unit includes：
Setup module is simulated, for simulating nuclear power generating sets under full factory's dead electricity operating mode of design basis accident, related process valve,
Instrument controller, the action sequence of block signal and logic, setting experiment window；
Logic checking module, for being carried out to the control loop and logical relation of the hydraulic testpump according to the experiment window
Verification.
9. device as claimed in claim 6, which is characterized in that the additional supply switches power-supply service interface in shared power supply
When one of million kilowatt nuclear power unit of disk carries out large repairs, the supply voltage of the additional accident mitigation power supply is introduced and is shared
The million kilowatt nuclear power unit of power supply control panel it is another.
10. device as claimed in claim 6, which is characterized in that the data verification units verify the additional accident mitigation
The stability of power supply includes that verification adds band load of the accident mitigation power-supply system after bearing multiple startup impact and load variation
Ability.
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| CN111812998B (en) * | 2020-06-08 | 2023-07-14 | 中核武汉核电运行技术股份有限公司 | Nuclear power plant double-unit digital instrument control verification system and method thereof |
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| JP3207646B2 (en) * | 1993-12-15 | 2001-09-10 | 株式会社東芝 | Emergency power interchange board and power system for nuclear power plants |
| CN201369179Y (en) * | 2008-12-25 | 2009-12-23 | 中广核工程有限公司 | Main/standby power supply circuit for digital equipment of nuclear power plant |
| KR101149685B1 (en) * | 2010-08-05 | 2012-05-23 | 한국원자력연구원 | A control unit having real-time self-diagnosis functions for digital safety systems of nuclear power plants |
| JP5683912B2 (en) * | 2010-11-16 | 2015-03-11 | 株式会社東芝 | Emergency core cooling system and boiling water nuclear power plant |
| CN102255377B (en) * | 2011-05-20 | 2012-12-05 | 中国广东核电集团有限公司 | Method and system for supplying emergency power supply to nuclear power station |
| CN102568629B (en) * | 2012-02-02 | 2014-08-13 | 中广核工程有限公司 | Power supply method for nuclear power plant cold-state function test |
| CN103632736B (en) * | 2012-08-20 | 2016-08-10 | 中国核动力研究设计院 | A kind of nuclear power station Reactor cavity flooding cooling system |
| CN104198951B (en) * | 2014-08-19 | 2019-01-15 | 中广核工程有限公司 | The reliability verification method of nuclear power station 380V moving emergency power supply |
| CN104409123B (en) * | 2014-11-15 | 2017-06-16 | 北京广利核系统工程有限公司 | A kind of nuclear power station priority management system |
| CN104700524B (en) * | 2014-12-31 | 2018-02-13 | 大亚湾核电运营管理有限责任公司 | The comprehensive security response system and device in multicomputer nuclear power base |
| CN104700585B (en) * | 2014-12-31 | 2018-04-27 | 大亚湾核电运营管理有限责任公司 | A kind of nuclear power plant's alarm linkage method and device across base |
| CN104916339B (en) * | 2015-04-22 | 2017-02-22 | 中国核动力研究设计院 | Nuclear power plant emergency state diagnosis system and diagnosis method |
| CN105098968B (en) * | 2015-08-18 | 2018-03-09 | 中广核工程有限公司 | A kind of nuclear power plant's Primary hydraulic test dead electricity control method and system |
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Effective date of registration: 20181130 Address after: 518000 B105, 01/F, Daya Bay Nuclear Power Base, Pengfei Road, Dapeng Street, Dapeng New District, Shenzhen City, Guangdong Province Co-patentee after: China General Nuclear Power Corporation Patentee after: Dayawan Nuclear Power Running Management Co., Ltd. Co-patentee after: China wide nuclear electricity incorporated company Co-patentee after: Lingao Nuclear Power Co., Ltd. Address before: 518000 Science and Technology Building, Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province, 18th Floor Co-patentee before: China General Nuclear Power Corporation Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. Co-patentee before: China wide nuclear electricity incorporated company |
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