CN103700414B - Diversity driving system and method for nuclear power plant - Google Patents
Diversity driving system and method for nuclear power plant Download PDFInfo
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- CN103700414B CN103700414B CN201310675078.9A CN201310675078A CN103700414B CN 103700414 B CN103700414 B CN 103700414B CN 201310675078 A CN201310675078 A CN 201310675078A CN 103700414 B CN103700414 B CN 103700414B
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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
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Abstract
The invention relates to a diversity driving system and a diversity driving method for a nuclear power plant. The diversity driving system for the nuclear power plant comprises a diversity driving cabinet, wherein the diversity driving cabinet comprises a judgment module and an interface module. According to the diversity driving system for the nuclear power plant, a reactor and a steam turbine can be shut down in case of software common cause failures of a digital instrument control system, so that the risk of beyond design basis accidents caused by incapability of shutting down the reactor and the steam turbine and starting functions of corresponding special relieving facilities in case of software common cause failures and anticipated transient and design basis accidents of the digital instrument control system of the nuclear power plant is reduced.
Description
Technical field
The present invention relates to digital instrument control system of nuclear power plant field, more particularly, to a kind of nuclear power station diversity drive system and
Method.
Background technology
The development of nuclear power plant's I＆C system can be divided into simulation control, partial digitized and totally digitilized three phases.Due to
Digitized I＆C system have the advantages that can self-inspection, easy care so that totally digitilized nuclear power plant I＆C system becomes the certainty of development
Trend.
In recent years in the world, with digitizing technique in the application of nuclear power field and development.Especially RPS etc. pacifies
After full level function system adopts digitizing technique, people increasingly pay attention to the safe level software used in digitized I＆C system
It may happen that the impact of common cause fault.Safe level software can defend I＆C system hardware altogether it may happen that common cause fault can result in
The safety-related equipment of multi-kernel hindering for some reason lost efficacy simultaneously, and then had influence on protection system normal function.This can lead to work as nuclear power
Factory occurs corresponding protection and mitigation strategy during design basis event DBE to lose efficacy, and then may develop into beyond design basis accident.
In prior art, configure a great deal of in whole digital instrument control system of nuclear power plant and bypass digitized utilization firmly
The safety that Wiring type is realized shows and drive signal function, to tackle the accidents such as anticipated transient not shutdown.These functions exist
Meet I＆C system depth defense and multifarious basic demand to a certain extent, can be used for tackling and alleviate part and safe level
There is consequence during software common cause fault in the related digitized I＆C system of function.But these bypass digitized function in reply
During software common cause fault, depend on the operation factors of people it is impossible to effectively be specifically designed for the digitized instrument control of safe level function more
Systems soft ware common cause fault provides system-level emergency function demand.
When possessing the digitized instrument control systems soft ware common cause fault of safe level function, reactor, steam turbine etc. are non-security
Level system cannot answer acute closing against existing protection system, easily causes the generation of super design reference event.
Content of the invention
When there is common cause fault for nuclear plant digital I＆C system software of the prior art, reactor, steam turbine
Acute shutdown, the defect shut down cannot be answered, a kind of being used in nuclear plant digital I＆C system software generation common cause fault is provided
When reactor shutdown, the nuclear power station diversity drive system of halt turbines and method.
The present invention solves technical problem and employed technical scheme comprise that：A kind of nuclear power station diversity driving method is provided, including：
Receive neutron fluence rate signal, the first state letter of the process instrument of nuclear reactor protection rack that Nuclear Instrument sends
Number, shutdown chopper collection the second status signal of reactor, the third state signal of steam turbine working condition；
Judge whether to produce first automatic according to described neutron fluence rate signal, first state signal, the second status signal
Drive signal, and when producing described first automatic drive signal, the described first automatic drive signal is sent to shutdown coil,
To control the automatic shutdown of reactor；
Judge whether to produce second automatic according to described neutron fluence rate signal, first state signal, third state signal
Drive signal, and when producing described second automatic drive signal, the described second automatic drive signal is sent to steam turbine, with
Control described steam turbine tripping operation.
Preferably, described judge whether to produce according to described neutron fluence rate signal, first state signal, the second status signal
Raw first automatic drive signal is specially：
When described neutron fluence rate signal, first state signal all exceed the threshold value of setting, and the second status signal shows
During the non-normal shutdown of reactor, produce the first automatic drive signal.
Preferably, described judge whether to produce according to described neutron fluence rate signal, first state signal, third state signal
Raw second automatic drive signal is specially：
When described neutron fluence rate signal, first state signal all exceed the threshold value of setting, and third state signal shows
When steam turbine is not turned off, produce the described second automatic drive signal.
Preferably, described nuclear power station diversity driving method also includes：
Receive the 4th status signal that the ad hoc equipment of safety sends；
Judge whether to produce the 3rd automatic according to described neutron fluence rate signal, first state signal, the 4th status signal
Drive signal, and when producing described three automatic drive signal, described 3rd automatic drive signal is sent to described safety
Ad hoc equipment, to start the ad hoc equipment of described safety.
Preferably, described judge whether to produce according to described neutron fluence rate signal, first state signal, the 4th status signal
Raw 3rd automatic drive signal is specially：When described neutron fluence rate signal, described first state signal all exceed the threshold of setting
Value, and when the ad hoc equipment of described 4th status signal display safety is not actuated, produce described 3rd automatic drive signal.
Preferably, described nuclear power station diversity driving method also includes：
Receive high and low pressure peace note flow signal；
Judge whether that producing the 4th drives automatically according to described first state signal and described high and low pressure peace note flow signal
Signal, and when producing described four automatic drive signal, described 4th automatic drive signal is sent to safety injection system, to open
Move described safety injection system.
Preferably, described according to described first state signal and high and low pressure peace note flow signal judge whether to produce the 4th
Automatically drive signal is specially：When the manostat pressure in described first state signal is higher than predetermined threshold value and described low pressure peace
During note flow signal display safety injection system locking, produce the 4th automatic drive signal.
Preferably, described nuclear power station diversity driving method also includes：
Receive the 5th status signal of main steam isolation valve；
Judge whether to produce the 5th automatic drive signal according to described first state signal and the 5th status signal, and producing
During raw described five automatic drive signal, described main steam isolation valve is driven to close.
Preferably, described judge whether that producing the 5th drives automatically according to described first state signal and the 5th status signal
Signal is specially：When described 5th status signal display main steam isolation valve is opened, and the jet chimney in first state signal
Flow is high and when steam pressure is low, produces described 5th automatic drive signal.
Present invention also offers a kind of nuclear power station diversity drive system, drive rack, described multiformity including multiformity
Rack is driven to include interconnective interface module and judge module；Described interface module includes the core instrument for receiving nuclear power station
The RPN interface of the neutron fluence rate signal of table, for receive nuclear power station the process instrument of nuclear reactor protection rack first
The RPC interface of status signal, gather for being connected with the shutdown coil of nuclear power station using hardwire and receiving described shutdown coil
The first hardwire interface of the second status signal of reactor, for gather nuclear power station steam turbine working condition the 3rd shape
Second hardwire interface of state signal, the 6th hardwire for being connected with the shutdown chopper of described nuclear power station using hardwire
Interface；
Described judge module is according to described neutron fluence rate signal, described first state signal and described second state letter
Number judging whether to produce the first automatic drive signal, and when producing described first automatic drive signal, will described first oneself
Dynamic drive signal sends described shutdown coil to by described first hardwire interface and controls the reactor of nuclear power station automatically to stop
Heap；
Described judge module is believed according to described neutron fluence rate signal, described first state signal and the described third state
Number judging whether to produce the second automatic drive signal, and when producing described second automatic drive signal, will described second oneself
Dynamic drive signal passes through steam turbine tripping operation described in described second hardwire interface driver.
Preferably, described judge module includes the first judging unit, and described first judging unit is used in described neutron note
Dose rate signal, first state signal all exceed the threshold value of setting, and during the second status signal display non-normal shutdown of reactor, produce
Raw first automatic drive signal.
Preferably, described judge module includes the second judging unit, and described second judging unit is used in described neutron note
Dose rate signal, first state signal all exceed the threshold value of setting, and when third state signal display steam turbine is not turned off, produce institute
State the second automatic drive signal.
Preferably, described interface module also includes the 4th state letter sending for the ad hoc equipment of safety receiving nuclear power station
Number and send the CIM interface of the 3rd automatic drive signal to the ad hoc equipment of described safety, described judge module is according to described neutron
Fluence rate signal, described 4th status signal, described first state signal judging whether to produce the 3rd automatic drive signal, and
When producing described three automatic drive signal, described 3rd automatic drive signal is sent to described by described CIM interface
The ad hoc equipment of safety simultaneously drives the ad hoc equipment of described safety to enable.
Preferably, described judge module includes the 3rd judging unit, and described 3rd judging unit is used in described neutron note
Dose rate signal, described first state signal all exceed the threshold value of setting, and the ad hoc equipment of described 4th status signal display safety
When not actuated, produce described 3rd automatic drive signal.
Preferably, described interface module also includes the 4th hardwire interface for gathering high and low pressure peace note flow signal,
Described judge module judges whether to produce the 4th automatic according to described first state signal and described high and low pressure peace note flow signal
Drive signal, and when producing described four automatic drive signal, described 4th automatic drive signal is passed through the described 4th hard
The safety injection system of wiring interface driver nuclear power station starts.
Preferably, described judge module includes the 4th judging unit, and described 4th judging unit is used in described first shape
Manostat pressure in state signal is higher than predetermined threshold value and described low pressure peace is noted flow signal and shown described safety injection system locking
When, produce the 4th automatic drive signal.
Preferably, described interface module also includes the 5th status signal of the main steam isolation valve for gathering nuclear power station
5th hardwire interface, described judge module judges whether to produce according to described 5th status signal and described first state signal
Raw 5th automatic drive signal, and when producing described five automatic drive signal, driven using the described 5th automatic drive signal
Dynamic described main steam isolation valve is closed.
Preferably, described judge module includes the 5th judging unit, and described 5th judging unit is used in described 5th shape
State signal display main steam isolation valve is opened, and the jet chimney flow in first state signal is high and steam pressure is low, produces
Described 5th automatic drive signal.
Preferably, described multiformity drive system also includes man-machine interface disk, described man-machine interface disk and described multiformity
Rack is driven to connect, described man-machine interface disk includes routine/numeral indicating module, described conventional/digital indicating module is used for showing
Show that described multiformity drives the status information in rack.
Preferably, described man-machine interface disk is provided with routine/touch screen handss behaviour's module, described routine/touch screen handss behaviour's mould
Block is used for generation and is sent to described multiformity driving rack to control described multiformity to drive closing, startup and the reset of rack
First manual control signal described shutdown coil be sent to by hardwire control the second manual of described reactor shutdown
Control signal and for by hardwire be sent to the ad hoc equipment of described safety drive the ad hoc equipment of described safety start
3rd manual control signal.
The nuclear power station diversity drive system that the present invention provides compared with prior art has the advantages that：The present invention
The nuclear power station diversity drive system providing can in the digitized instrument control systems soft ware common cause fault of nuclear power station, and occur pre-
So that the reactor emergency shut-down of nuclear power station and steam turbine emergency shutdown when phase transient state and design basis accident, and according to accident
Operating mode starts function and the equipment of ad hoc mitigation strategy, reduces nuclear power station and because of digitized I＆C system software common cause fault and sends out
When raw anticipated transient and design basis accident, reactor shutdown, steam turbine cannot cannot be shut down and cannot start ad hoc accordingly
Alleviate facility function, and then cause the risk producing super design reference event.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the theory diagram of the nuclear power station diversity drive system in one embodiment of the invention；
Fig. 2 is the FB(flow block) of the nuclear power station diversity driving method in one embodiment of the invention.
Specific embodiment
Fig. 1 shows nuclear power station diversity drive system in one embodiment of the invention, this nuclear power station diversity drive system
Multiformity including communication connection drives rack 10.Multiformity drives rack 10 to include interconnective judge module 12 and interface
Module 11.
In the present embodiment, judge module 12 can be using redundancy setting, and it includes at least two identical calculation process
Module.The stability of judge module 12 so can be strengthened so that this multiformity drive system of this nuclear power station hinders and for some reason in core
Power station digitized I＆C system occurs during software common cause fault the probability of normal operation to reduce.
Interface module 11 include RPN interface, RPC interface, the first hardwire interface, the second hardwire interface, CIM interface,
4th hardwire interface, the 5th hardwire interface, DCS interface.
Wherein, RPN interface is used for receiving the neutron fluence rate signal of the Nuclear Instrument of nuclear power station.RPC interface is used for receiving core
The first state signal of the process instrument of reactor protection rack in power station, this first state signal includes manostat pressure letter
Number, reactor flow signal, power range neutron flux signal, vaporizer water level signal, jet chimney flow signal and steaming
Vapour pressure force signal.First hardwire interface is connected with the shutdown coil of nuclear power station using hardwire.Second hardwire interface is used for
The third state signal of the steam turbine working condition of collection nuclear power station, it adopts hardwire to be connected with steam turbine control system.CIM
Interface be used for sending the 4th automatic drive signal and the ad hoc equipment of safety that receives nuclear power station the 4th status signal, itself and safety
The control system of ad hoc equipment connects.4th hardwire interface is used for gathering high and low pressure peace note flow signal.5th hardwire connects
Mouth is for gathering the 5th status signal of the main steam isolation valve of nuclear power station.6th hardwire interface is used for using hardwire and institute
The shutdown chopper stating nuclear power station connects, to gather the second status signal of reactor.DCS interface is used for and nuclear plant digital
I＆C system connects, and security parameter information, multiformity are driven status information of rack 10 etc. to send nuclear plant digital to
I＆C system shows and preserves.Security parameter information includes：Manostat pressure, reactor flow, power range neutron flux, steaming
Send out the information such as device water level, jet chimney flow and steam pressure.
Further, judge module 12 includes the first judging unit, the second judging unit, the 3rd judging unit, the 4th sentences
Disconnected unit and the 5th judging unit, this first judging unit, the second judging unit, the 3rd judging unit, the 4th judging unit
And the 5th judging unit be connected with interface module 11 respectively.
First judging unit is adopted according to neutron fluence rate signal, the first state signal of process instrument and shutdown chopper
Second status signal of the reactor of collection, to judge whether to produce the first automatic drive signal, is producing the first automatic drive signal
When, the first automatic drive signal is sent to shutdown coil by the first hardwire interface and controls the automatic shutdown of reactor.When
When neutron fluence rate signal, the first state signal of process instrument all exceed the threshold value of setting, and the second shape of reactor
State signal shows the non-normal shutdown of reactor, and the first judging unit sends the first automatic drive signal and sends shutdown coil control to
Reactor shutdown processed, it is to avoid cause further super design reference event.
Second judging unit works according to stating neutron fluence rate signal, the first state signal of process instrument and steam turbine
The third state signal of state judging whether to produce the second automatic drive signal, and when producing the second automatic drive signal,
Second automatic drive signal is passed through the second hardwire interface driver steam turbine tripping operation.When neutron fluence rate signal, process instrument
First state signal all exceed given threshold and when the second hardwire interface collects signal display steam turbine and is not turned off, first
Judging unit produces the second automatic drive signal and sends steam turbine control system to control steam turbine to trip.Then when second is hard
When wiring interface detects steam turbine tripping operation, send chaser signal, control electromotor chaser.Steam turbine so can be protected and send out
Motor.
The status signal of the ad hoc equipment of safety that the 3rd judging unit arrives according to neutron fluence rate signal, CIM interface,
First state signal judging whether to produce the 3rd automatic drive signal, and when producing three automatic drive signals, by the 3rd
Automatically drive signal is sent to the ad hoc equipment of safety by CIM interface and drives the ad hoc equipment of safety to enable.Work as neutron fluence rate
When signal, first state signal exceed the threshold value of setting, and when the ad hoc equipment of the 4th status signal display safety is not actuated,
3rd judging unit produces the 3rd automatic drive signal and is sent to the control system of the ad hoc equipment of safety, drives safety equipment to open
Move to tackle common cause fault.
4th judging unit is pacified note flow signal and is judged whether to produce according to the first state signal of process instrument and high and low pressure
Raw 4th automatic drive signal, and when producing four automatic drive signals, the 4th automatic drive signal is connect firmly by the 4th
Line interface drives safety injection system to start.The condition producing the 4th automatic drive signal is：First state signal shows process instrument
Manostat pressure in signal is higher than predetermined threshold value and low pressure peace note flow signal display safety injection system locking.
5th judging unit according to the 5th status signal of main steam isolation valve and the first state signal of process instrument Lai
Judge whether to send the 5th automatic drive signal, the 5th automatic drive signal is used for driving main steam isolation valve to close.The five kinds of stiffness in infant
Connection jaws are connected with main steam isolation valve by hardwire.The Production conditions of the 5th automatic drive signal：5th status signal shows
Show that main steam isolation valve is opened, and the first state signal of process instrument shows that jet chimney flow is high and steam pressure is low.
It is to be appreciated that this nuclear power station diversity drive system can also include man-machine interface disk.Man-machine interface disk includes
Touch screen handss behaviour's module, conventional handss behaviour's module, routine/numeral indicating module, routine/digital alarm module.
Conventional/digital indicating module routine indicating module is used for showing the status information that multiformity drives in rack 10, peace
Global function parameter shows, important fault alarm information etc..Security parameter information includes：Manostat pressure, reactor flow, power
The information such as range neutron flux, vaporizer water level, jet chimney flow and steam pressure.Routine/digital alarm module is used for
Report to the police to point out operator when security parameter exceedes predetermined value.
Touch screen handss behaviour's module and conventional handss behaviour's module are used to operate for operator to input manual operation.It can be used for
Produce first manual control signal and be sent to multiformity driving rack 10 to control multiformity to drive the closing of rack 10, startup
And reset, produce the second manual control signal and shutdown coil is sent to by hardwire controls reactor shutdown, and
Produce the 3rd manual control signal and the ad hoc equipment of safety is sent to by hardwire drives the ad hoc equipment of safety to start.
Present invention also offers a kind of nuclear power station diversity driving method, comprise the following steps：
Judge module 12 receives, by interface module 11, neutron fluence rate signal, the nuclear reactor protection machine that Nuclear Instrument sends
The first state signal of the process instrument of cabinet, second status signal of reactor of shutdown chopper collection, steam turbine work shape
The third state signal of state；
First judging unit of judge module 12 is according to neutron fluence rate signal, first state signal, the second status signal
Judge whether to produce the first automatic drive signal, and when producing the first automatic drive signal, the first automatic drive signal is sent out
Give shutdown coil, to control the automatic shutdown of reactor.When neutron fluence rate signal, first state signal all exceed setting
Threshold value, and during the second status signal display non-normal shutdown of reactor, the second judging unit produces the first automatic drive signal.
Second judging unit of judge module 12 is according to described neutron fluence rate signal, first state signal, the third state
Signal judges whether to produce the second automatic drive signal, and when producing the second automatic drive signal, by the second automatic driving letter
Number it is sent to steam turbine, to control described steam turbine tripping operation.When neutron fluence rate signal, first state signal all exceed setting
Threshold value, and when third state signal display steam turbine is not turned off, the second judging unit produces the second automatic drive signal and passes through
Interface module 11 is sent to steam turbine.
Judge module 12 receives, also by interface module 11, the 4th status signal that the ad hoc equipment of safety sends；Judge module
12 the 3rd judging unit judges whether to produce the 3rd according to neutron fluence rate signal, first state signal, the 4th status signal
Automatically drive signal, and when producing described three automatic drive signal, the 3rd automatic drive signal is sent to safety ad hoc
Equipment, to start the ad hoc equipment of safety.When neutron fluence rate signal, first state signal all exceed the threshold value of setting, and the 4th
When the ad hoc equipment of status signal display safety is not actuated, the 3rd judging unit produces the 3rd automatic drive signal and passes through interface mould
Block 11 is sent to the ad hoc equipment of safety.
Judge module 12 receives high and low pressure peace note flow signal also by interface module 11；
4th judging unit of judge module 12 judges whether according to first state signal and high and low pressure peace note flow signal
Produce the 4th automatic drive signal, and when producing described four automatic drive signal, described 4th automatic drive signal is sent out
Deliver to safety injection system, to start described safety injection system.Judge module 12 receives the of main steam isolation valve by interface module 11
Five status signals；5th judging unit of judge module 12 judges whether to produce according to first state signal and the 5th status signal
5th automatic drive signal, and when producing five automatic drive signals, drive main steam isolation valve to close.When the 5th state is believed
Number display main steam isolation valve is opened, and jet chimney flow in first state signal is high and when steam pressure is low, and the 5th sentences
Disconnected unit produces the 5th automatic drive signal, and by the 5th automatic drive signal by interface module 11 be sent to main steam every
From valve.
The present invention provide nuclear power station diversity drive system be nuclear power station depth defense in " risk reduction prevent
Line " layer.This advanced Nuclear Power depth defense includes：
Preventative defence line, it is used for maintaining power station in operation limit value, it is to avoid reactor emergency shut-down or ad hoc safety set
Apply driving, be mainly made up of non-security level Control of Power Plant and monitoring system PCMS.
Main line of defense：It is used for preventing power station from deviateing controllable state and alleviating damage sequence, by safe level Control of Power Plant and prison
Viewing system RPMS is constituted.
Risk reduction defence line, it is used for alleviating reactor protection and the estimated fortune of monitoring system RPSM software common cause fault superposition
Row transient state AOO or hypothetical accident PA, and the consequence of estimated transient state not shutdown ATWS, are driven by the nuclear power station diversity of non-security level
Dynamic system DAS is constituted.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (16)
1. a kind of nuclear power station diversity driving method is it is characterised in that include：
Receive Nuclear Instrument send neutron fluence rate signal, the first state signal of the process instrument of nuclear reactor protection rack,
Second status signal of reactor of shutdown chopper collection, the third state signal of steam turbine working condition；
Judge whether that producing first drives automatically according to described neutron fluence rate signal, first state signal, the second status signal
Signal, when described neutron fluence rate signal, first state signal all exceed the threshold value of setting, and the display reaction of the second status signal
During the non-normal shutdown of heap, produce the first automatic drive signal, and the described first automatic drive signal is sent to shutdown coil, with
Control the automatic shutdown of reactor；
Judge whether that producing second drives automatically according to described neutron fluence rate signal, first state signal, third state signal
Signal, when described neutron fluence rate signal, first state signal all exceed the threshold value of setting, and third state signal display steamer
When machine is not turned off, produces the described second automatic drive signal, and the described second automatic drive signal is sent to steam turbine, to control
Make described steam turbine tripping operation.
2. nuclear power station diversity driving method according to claim 1 is it is characterised in that also include：
Receive the 4th status signal that the ad hoc equipment of safety sends；
Judge whether that producing the 3rd drives automatically according to described neutron fluence rate signal, first state signal, the 4th status signal
Signal, and when producing described three automatic drive signal, described 3rd automatic drive signal is sent to described safety ad hoc
Equipment, to start the ad hoc equipment of described safety.
3. nuclear power station diversity driving method according to claim 2 it is characterised in that described according to described neutron fluence
Rate signal, first state signal, the 4th status signal judge whether that producing the 3rd automatic drive signal is specially：When described neutron
Fluence rate signal, described first state signal all exceed the threshold value of setting, and described 4th status signal shows that safety is ad hoc and sets
When standby not actuated, produce described 3rd automatic drive signal.
4. nuclear power station diversity driving method according to claim 1 is it is characterised in that also include：
Receive high and low pressure peace note flow signal；
Judge whether to produce the 4th automatic driving letter according to described first state signal and described high and low pressure peace note flow signal
Number, and when producing described four automatic drive signal, described 4th automatic drive signal is sent to safety injection system, to start
Described safety injection system.
5. nuclear power station diversity driving method according to claim 4 it is characterised in that described according to described first state
Signal and high and low pressure peace note flow signal judge whether that producing the 4th automatic drive signal is specially：When described first state letter
When manostat pressure in number is higher than predetermined threshold value and described low pressure peace note flow signal display safety injection system locking, produce the
Four automatic drive signals.
6. nuclear power station diversity driving method according to claim 1 is it is characterised in that also include：
Receive the 5th status signal of main steam isolation valve；
Judge whether to produce the 5th automatic drive signal according to described first state signal and the 5th status signal, and producing institute
When stating five automatic drive signals, described main steam isolation valve is driven to close.
7. nuclear power station diversity driving method according to claim 6 it is characterised in that described according to described first state
Signal and the 5th status signal judge whether that producing the 5th automatic drive signal is specially：As described 5th status signal display master
Steam isolating is opened, and jet chimney flow in first state signal is high and when steam pressure is low, produce the described 5th from
Dynamic drive signal.
8. a kind of nuclear power station diversity drive system drives rack (10) it is characterised in that including multiformity, and described multiformity is driven
Motivation cabinet (10) includes interconnective interface module (11) and judge module (12)；Described interface module (11) is included for connecing
Receive the RPN interface of the neutron fluence rate signal of Nuclear Instrument of nuclear power station, be used for receiving the nuclear reactor protection rack of nuclear power station
The RPC interface of the first state signal of process instrument, for being connected with the shutdown coil of nuclear power station using hardwire and receiving institute
State the first hardwire interface of the second status signal of reactor, the steam turbine work for gathering nuclear power station of the collection of shutdown coil
Make the second hardwire interface of the third state signal of state, connect for the shutdown chopper using hardwire and described nuclear power station
The 6th hardwire interface connecing；
Described judge module (12) includes the first judging unit and the second judging unit；
Described judge module (12) is according to described neutron fluence rate signal, described first state signal and described second state letter
Number judging whether to produce the first automatic drive signal, and when producing described first automatic drive signal, will described first oneself
Dynamic drive signal sends described shutdown coil to by described first hardwire interface and controls the reactor of nuclear power station automatically to stop
Heap；Wherein, described first judging unit is used for all exceeding the threshold of setting in described neutron fluence rate signal, first state signal
Value, and during the second status signal display non-normal shutdown of reactor, produce the described first automatic drive signal；
Described judge module (12) is believed according to described neutron fluence rate signal, described first state signal and the described third state
Number judging whether to produce the second automatic drive signal, and when producing described second automatic drive signal, will described second oneself
Dynamic drive signal passes through steam turbine tripping operation described in described second hardwire interface driver；Wherein, described second judging unit is used for
All exceed the threshold value of setting in described neutron fluence rate signal, first state signal, and third state signal display steam turbine is not
During closing, produce the described second automatic drive signal.
9. according to claim 8 nuclear power station diversity drive system it is characterised in that described interface module (11) also includes
The 4th status signal that the ad hoc equipment of safety for receiving nuclear power station sends and to the ad hoc equipment of described safety send the 3rd from
The CIM interface of dynamic drive signal, described judge module (12) according to described neutron fluence rate signal, described 4th status signal,
Described first state signal is judging whether to produce the 3rd automatic drive signal, and is producing described 3rd automatic drive signal
When, described 3rd automatic drive signal is sent to the ad hoc equipment of described safety by described CIM interface and drives described safety
Ad hoc equipment enables.
10. according to claim 9 nuclear power station diversity drive system it is characterised in that described judge module (12) include
3rd judging unit, described 3rd judging unit is used for all exceeding in described neutron fluence rate signal, described first state signal
The threshold value setting, and when the ad hoc equipment of described 4th status signal display safety is not actuated, produce the described 3rd automatic driving letter
Number.
11. nuclear power station diversity drive systems according to claim 8 are it is characterised in that described interface module (11) is gone back
Including the 4th hardwire interface for gathering high and low pressure peace note flow signal, described judge module (12) is according to described first
Status signal and described high and low pressure peace note flow signal judge whether to produce the 4th automatic drive signal, and are producing described the
During four automatic drive signals, described 4th automatic drive signal is noted by the peace of described 4th hardwire interface driver nuclear power station
System start-up.
12. nuclear power station diversity drive systems according to claim 11 are it is characterised in that described judge module (12) wraps
Include the 4th judging unit, the manostat pressure that described 4th judging unit is used in described first state signal is higher than predetermined
Threshold value and described low pressure peace note flow signal is when show described safety injection system locking, generation the 4th automatic drive signal.
13. nuclear power station diversity drive systems according to claim 8 are it is characterised in that described interface module (11) is gone back
Including the 5th hardwire interface of the 5th status signal of the main steam isolation valve for gathering nuclear power station, described judge module
(12) judge whether to produce the 5th automatic drive signal according to described 5th status signal and described first state signal, and
When producing described five automatic drive signal, described main steam isolation valve is driven to close using the described 5th automatic drive signal.
14. nuclear power station diversity drive systems according to claim 13 are it is characterised in that described judge module includes
Five judging units, described 5th judging unit is used for opening in described 5th status signal display main steam isolation valve, and first
Jet chimney flow in status signal is high and when steam pressure is low, produces described 5th automatic drive signal.
15. nuclear power station diversity drive systems according to claim 10 are it is characterised in that described multiformity drive system
Also include man-machine interface disk, described man-machine interface disk drives rack (10) to be connected with described multiformity, described man-machine interface Pan Bao
Include routine/numeral indicating module, described conventional/digital indicating module is used for showing the shape that described multiformity drives in rack (10)
State information.
16. nuclear power station diversity drive systems according to claim 15 are it is characterised in that described man-machine interface disk is arranged
There is routine/touch screen handss behaviour's module, described routine/touch screen handss behaviour's module is used for producing first manual control signal, second-hand
Dynamic control signal and the 3rd manual control signal,
Described first manual control signal sends and drives rack (10) to control described multiformity to drive rack to described multiformity
(10) closing, startup and reset；
Described second manual control signal is sent to described shutdown coil by hardwire and controls described reactor shutdown；
Described 3rd manual control signal is sent to the ad hoc equipment of described safety by hardwire and drives that described safety is ad hoc to be set
Standby startup.
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