CN107947333A - Realize security method menu, system and the control device of biserial power supply crossfeed - Google Patents
Realize security method menu, system and the control device of biserial power supply crossfeed Download PDFInfo
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- CN107947333A CN107947333A CN201711065295.0A CN201711065295A CN107947333A CN 107947333 A CN107947333 A CN 107947333A CN 201711065295 A CN201711065295 A CN 201711065295A CN 107947333 A CN107947333 A CN 107947333A
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- power supply
- drawer
- crossfeed
- emergency
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
Abstract
The present invention relates to the technical field of the station service electrical system of million millions nuclear power stations, discloses a kind of security method menu for realizing biserial power supply crossfeed, system and control device, wherein, the system comprises：First power supply, second source and crossfeed circuit.The present invention connects the first power supply and second source by crossfeed circuit, the first power supply and second source is realized crossfeed；Situation about can not be controlled in the case of avoiding a power loss to the load of dead electricity power supply, improves the security of power supply power supply.Especially the present invention is used on the power supply of nuclear power generating sets, the emergency service mechanism intersected and mutually rescued is provided between mutually isolated power supply, important load can be also controlled when ensure that multinomial accident superposition, the stability and reliability of unit operation are improved, contribution is made that for efficiently using for nuclear energy.
Description
Technical field
The present invention relates to the technical field of the station service electrical system of million millions nuclear power stations, and in particular to one kind realizes biserial
Security method menu, system and the control device of power supply crossfeed.
Background technology
Nuclear power station all over the world is implementing EOP (emergency operation program) to SOP (system operation code) conversion work,
During SOP malfunction protocols are worked out, identify that current Daya Bay Nuclear Power Plant and Ling Ao nuclear power plants (phase) are directed to RIS001VP/
The normal function design of tetra- valve arrangements of 002VP/003VP, RCV050VP, under some more special superposition accident conditionses
It can not meet that accident is oriented to the requirement of operation and response, it is specific as follows：.
Certain nuclear power station of the country has set two row emergency power supply busbares (A row power supply and B row power supply) at present, wherein
Tetra- valves of RIS001VP/002VP/003VP, RCV050VP realize emergent supply by the wherein row power supply in two row power supplys respectively
Electricity, principal statistical are as follows：
The RIS/RCV of table -1 load powers supply statistical form：
| Load describes | Power | Power switch | Power supply arranges |
| RIS001VP | 18.5KW | LLE-308 | A is arranged |
| RIS002VP | 18.5KW | LLE-306 | A is arranged |
| RIS003VP | 18.5KW | LLD-501 | B is arranged |
| RCV050VP | 1.5KW | LLD-309 | B is arranged |
Tetra- valves of RIS001VP/002VP/003VP, RCV050VP of certain nuclear power station are in some more special superposition things
Therefore can not meet that accident is oriented to the requirement of operation and response under operating mode, it is specific as follows：
1) when the heap workshop (RX) that reacts cannot be introduced into, and RIS001/002/003VP valve accidents are turned off manually, superposition
The operating mode of the AC or DC dead electricity of power supply A (B) row, in primary Ioops pressure as low as 14bar, at RIS001/002/003VP
In opening, if can not all electronic closings, will cause it is middle pressure peace note tank in nitrogen enter primary Ioops, then nitrogen gathers
Collection ultimately results in SG cutout at the top of SG heat-transfer pipes, seriously affects primary Ioops cooling.
2) when react heap workshop (RX) unapproachable accident when, superposition loses the works of B row AC or DC powers
Condition, if primary Ioops need the normally spray of decompression and voltage-stablizer unavailable, can only use auxiliary spray.But due to B row power supplys
Dead electricity, will be unable to the RCV050VP that operation is located in reactor building (RX) and the auxiliary spray that finally puts into operation, influences to unit thing
Therefore the control of state.
Above-mentioned special superposition accident conditions, after a certain row power supply is lost, such as once exchange 380V power supplys lose, and will lead
Cause to be distributed on A row or B row electronic load (it is interior in the case of accident to be particularly at RX workshops, cannot be introduced into RX workshops into
The crucial important load that row is intervened), electric operating can not be carried out in electrical building.At the same time in the case of extreme superposition is considered, lose
The a certain row of power supply are removed, once exchange 380V power supplys lose while linear quadratic control power supply equally loses, it is meant that master control room can not
Show the state of respective column power supply, while the load of respective column can not be also operated in master control room, also can not on the spot in power-supply device
Implement electric operating as requested.
Therefore, the prior art could be improved and improve
The content of the invention
The application provides a kind of security method menu for realizing biserial power supply crossfeed, system and control device, passes through
The mode of crossfeed improves the security of biserial power supply.
According to the first aspect of the invention, the present invention provides a kind of security ststem for realizing biserial power supply crossfeed,
Including：
First power supply；
Second source；
Crossfeed circuit, for connecting the first power supply and second source, makes the first power supply and second source realize and intersect
Power supply.
The security ststem for realizing biserial power supply crossfeed, wherein, the crossfeed circuit includes：
First emergency power supply transfer box, for being connected with the first power supply；
Second emergency power supply transfer box, for being connected with second source；
Crossfeed cable loop, for connecting the first emergency power supply transfer box and the second emergency power supply transfer box, with reality
The crossfeed of existing first power supply and second source.
The security ststem for realizing biserial power supply crossfeed, wherein, first power supply includes the first distribution
Disk, first distribution board include the first power source bus and the first drawer-type switch cabinet being connected with the first power source bus, institute
State and one or more load loop drawers are provided with the first drawer-type switch cabinet；The second source includes the second distribution board,
Second distribution board includes second source busbar and the second drawer-type switch cabinet for being connected with second source busbar, and described the
One or more load loop drawers are provided with two drawer-type switch cabinets.
The security ststem for realizing biserial power supply crossfeed, wherein, further include：What is be adapted to supply load should
Anxious power supply drawer, for substitutional load circuit drawer, power input and the first emergency power supply transfer box or the second emergency power supply
To take electricity, power output end connects the first power supply or second source for transfer box connection.
The security ststem for realizing biserial power supply crossfeed, wherein, further include：It is emergent to take electric drawer, meet an urgent need
Take the power input of electric drawer to be connected with the first power supply or second source to take electricity, the emergent power output end for taking electric drawer with
First emergency power supply transfer box or the connection of the second emergency power supply transfer box.
The security ststem for realizing biserial power supply crossfeed, wherein, first drawer-type switch cabinet and
Two drawer-type switch cabinets, which are both provided with to meet an urgent need, takes electric space every for taking electric drawer insertion to take electricity for emergent.
The security ststem for realizing biserial power supply crossfeed, wherein, the crossfeed cable loop uses
Fire prevention package.
The security ststem for realizing biserial power supply crossfeed, wherein, in the crossfeed cable loop
Cable uses copper core cross-linked polyolefin insulating layer and thermoplastic sheath low-smoke halogen-free flame-retardant power cable.
The security ststem for realizing biserial power supply crossfeed, wherein, the first emergency power supply transfer box and
The current supply circuit of second emergency power supply transfer box is both provided with band earth leakage circuit breaker.
The security ststem for realizing biserial power supply crossfeed, wherein, the control electricity of the emergency service drawer
Source is obtained by emergency service drawer major loop through power module rectification.
According to the second aspect of the invention, the present invention provides a kind of power supply control apparatus, including：
First power source bus；
First drawer-type switch cabinet, is provided with one or more load loop drawers in first drawer-type switch cabinet；
With it is exterior for it is emergent take that electric drawer be adapted to emergent take electric space every for taking electric drawer power supply to emergent；
First drawer-type switch cabinet is connected with the first power source bus.
According to the third aspect of the invention we, the present invention provides a kind of security method menu for realizing biserial power supply crossfeed,
Security ststem including realizing biserial power supply crossfeed as described above；Include the following steps：
Using emergency service drawer substitutional load circuit drawer, by the input terminal of emergency service drawer and the second emergency power supply
The second source of transfer box connection, the output terminal of emergency service drawer and dead electricity connects；
The power input of electric drawer is taken to be connected with the first power supply of non-dead electricity by emergent, it is emergent to take the power supply of electric drawer defeated
Outlet is connected with the first emergency power supply transfer box.
Beneficial effects of the present invention：The present invention provides a kind of security method menu for realizing biserial power supply crossfeed, system
And control device, wherein, the system comprises：First power supply, second source and crossfeed circuit.The present invention passes through intersection
Power supply circuit connects the first power supply and second source, the first power supply and second source is realized crossfeed；Avoid an electricity
Situation about can not be controlled in the case of the dead electricity of source to the load of dead electricity power supply, improves the security of power supply power supply.
Brief description of the drawings
Fig. 1 is the structure diagram of the security ststem provided by the invention for realizing biserial power supply crossfeed；
Fig. 2 is the structure diagram of the security ststem provided by the invention for realizing biserial power supply crossfeed；
Fig. 3 is the circuit diagram of the security ststem provided by the invention for realizing biserial power supply crossfeed；
Fig. 4 is the electricity of emergency service drawer in the security ststem provided by the invention for realizing biserial power supply crossfeed
Lu Tu；
Fig. 5 is the emergent electricity for taking electric drawer in the security ststem provided by the invention for realizing biserial power supply crossfeed
Lu Tu；
Fig. 6 is the flow chart of the security method menu provided by the invention for realizing biserial power supply crossfeed.
Embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Referring to Fig. 1, the present invention provides a kind of security ststem for realizing biserial power supply crossfeed, including：First electricity
Source 10, second source 20 and crossfeed circuit 30；First power supply 10 can be connected by crossfeed circuit 30 and second source 20
Connect.
The crossfeed circuit 30, for connecting the first power supply 10 and second source 20, makes the first power supply 10 and second
Power supply 20 realizes crossfeed (double circuit power supply).Under normal circumstances, the first power supply 10 and second source 20 are separate, at it
In power loss (its stand-by power supply also dead electricity) when, two power supplys are connected with crossfeed circuit 30, realizes and hands over
Fork power supply, so as to avoid a power loss in the case of situation about the load of dead electricity power supply can not be controlled, raising
The security of power supply power supply.
The crossfeed circuit 30 includes：First emergency power supply transfer box 310,320 He of the second emergency power supply transfer box
Crossfeed cable loop 330.
The first emergency power supply transfer box (distribution box) 310, for being connected with the first power supply 10, from the first power supply 10
Take electricity and supply (export to) second emergency power supply transfer box 320；Electricity and supply first are taken from the second emergency power supply transfer box 320
Power supply 10.
The second emergency power supply transfer box (distribution box) 320, for being connected 20 with second source；From second source 20
Take electricity and supply the first emergency power supply transfer box 310；Electricity is taken from the first emergency power supply transfer box 310 and supplies second source 20.
The crossfeed cable loop 330, turns for connecting the first emergency power supply transfer box 310 and the second emergency power supply
Case 320 is connect, to realize the crossfeed of the first power supply 10 and second source 20.
In first emergency power supply transfer box 310 and the second emergency power supply transfer box 320 each electronic component how to set with
It is the prior art to realize crossfeed, and this will not be repeated here.
Embodiment one：
In the present embodiment, electric drawer is taken with emergent the system also includes emergency service drawer.Under normal circumstances, the first electricity
The LLE system power supplies of one unit of nuclear power station are given in source 10.Second source 20 gives the LLD system power supplies of another unit of nuclear power station, normally
In the case of it is mutually isolated.Referring to Fig. 2, two power supplys are separately positioned on A row room and B row room.
First power supply 10 includes the first distribution board (LLE distribution boards), and it is female that first distribution board includes the first power supply
Line and the first drawer-type switch cabinet 110 being connected with the first power source bus, are provided with first drawer-type switch cabinet 110
One or more load loop drawers 111.In the present embodiment, two load loop drawers 111 are provided with, control background skill respectively
The RIS 001VP valves and RIS 002VP valves mentioned in art, can specifically control corresponding valve using power switch
System.
Likewise, the second source 20 includes the second distribution board (LLD distribution boards), second distribution board includes second
Power source bus and the second drawer-type switch cabinet 210 being connected with second source busbar, in second drawer-type switch cabinet 210
It is provided with one or more load loop drawers 211.In the present embodiment, two load loop drawers 211 are provided with, are controlled respectively
The RIS 050VP valves and RIS003VP valves mentioned in background technology, specifically can use power switch to corresponding valve into
Row control.
First drawer-type switch cabinet, 110 and second drawer-type switch cabinet 210, which is both provided with to meet an urgent need, takes electric space every use
Electric drawer insertion is taken to take electricity from corresponding power source bus in supplying to meet an urgent need.
Drawer-type switch cabinet is that closure is made using steel plate, and the electric elements for passing in and out line loop are all installed on and can extract out
Drawer in, form the functional unit that can complete certain a kind of power supply task.Functional unit (load loop drawer 111) and busbar or
Between cable, the feature board made of the metallic plate or plastics of ground connection separates, and forms three busbar, functional unit and cable areas
Domain.Also there are quarantine measures between each functional unit.Drawer-type switch cabinet has higher reliability, security and interchangeability.
What the emergency service drawer was adapted to supply load, for substitutional load circuit drawer, emergency service drawer electricity
Source input terminal can be connected to take electricity with the first emergency power supply transfer box 310 or the second emergency power supply transfer box 320；Emergency service is taken out
The power output end of drawer can connect the first power supply 10 or second source 20, and the present embodiment is inserted into corresponding drawer-type switch cabinet
Connect corresponding power supply.Wherein, under emergent operating mode, emergency service drawer and the first emergency power supply transfer box 310 or second should
Urgent telegram source transfer box 320 is connected by movable type cable.The species of the emergency service drawer is according to the kind of load loop drawer
Depending on class, i.e. the species of emergency service drawer and the species of load loop drawer corresponds, easy to replace.In the present embodiment,
Emergency service drawer is divided into CFI-1T and CFI-3T amphitypys.
It is described it is emergent take electric drawer, the emergent power input for taking electric drawer can be connected with the first power supply or second source with
Take electricity, the present embodiment is inserted into the emergent of corresponding drawer-type switch cabinet and takes electric space every can connect corresponding power supply；It is emergent to take
The power output end of electric drawer can be connected with the first emergency power supply transfer box 310 or the second emergency power supply transfer box 320.This implementation
It is emergent to take electric drawer to be named with DL1-3T types in example.
In the case of two power supply normal power supplies, emergency service drawer takes electric drawer to be storable in elsewhere with emergent, i.e. should
Anxious power supply drawer and emergent take electric drawer two power supplys can not connect under normal circumstances, realize isolation to be portable.Having
During one power loss, by emergency service drawer and emergent electric drawer is taken to connect respectively with two power supplys, two emergency power supply transfer boxes
Connect, to realize crossfeed.
The first emergency power supply transfer box 310 can hang wall by the first distribution board, the second emergency power supply transfer box
320 can hang wall by the second distribution board, easy to connection.Two emergency power supply transfer boxes can be identical, and two emergent
The safety classification of power supply transfer case (310 and 320), all kinds of cables and two distribution boards is 1E grades；Antidetonation classification is anti-
Shake I classes；Identify that classification is K3.The chamber door key of two emergency power supply transfer boxes uses the general Ronis Y32441 keys of power plant
Spoon, is provided simultaneously with extra padlock management function, to improve security.
The special DS3 types 3P+E of the panel configuration general MARECHAL brands in power station of two emergency power supply transfer boxes is with special
The plug (foreign matter for preventing from wearing and storing) of protection cap and the socket of autoprotection lid, plug and socket configure rated current
50A, electric drawer, the plug of emergency service drawer or jack interface phase are taken more than maximum load current 40A, and with emergent
Match somebody with somebody, realize and take the quickly accessing with being adapted to of electric drawer, emergency service drawer plug or socket, DS3 types with emergent in the case of accident
Plug and other widely used DS1 (220V power supplys) used of current nuclear power plant, DS6 (380V power supplys) mode of operation is the same, but
Connector is different, prevents the people of operating personnel in case of emergency because of misconnection, and connection just in case is inserted
Head or socket are used with.
The requirement of security protection is needed in view of the premise of power side safety, and supply side, takes DS3 plugs (female)
Meet an urgent need with DL1-3T types and take electric drawer (configuration DS3 types socket) to be used cooperatively from distribution board to take electricity, DS3 sockets (male plug) with
CFI-1T or CFI-3T type emergency services drawer (configuration DS3 types plug) be used cooperatively to RIS001/002/003VP valves or
RCV050VP valves are powered.
Referring to Fig. 3, the current supply circuit of two emergency power supply transfer boxes is respectively provided with Schneider Vigi NSX100HTM80D
3P band earth leakage circuit breaker Q1, earth leakage protective definite value 0.03-10A is adjustable, according to actual load electric current and with reference to nuclear island again
Power supply electric leakage design configurations, are set as 3A, delay adjustments 0S by breaker earth leakage protective definite value, while by magnetic dropout definite value Im
Adjust as 400A, thermal tripping definite value Ir is adjusted as 0.7In, i.e. 56A, and at 60 °, Ir actual act values are about 50.4A, can be met
Power supply capacity requirement in the case of accident.
Two emergency power supply transfer boxes design isolation and Protection switch in primary circuit and secondary circuit, it is ensured that each
A circuit link is effectively protected and security isolation, and targeted design leakage protection measure, prevents under emergency conditions, people
The anxiety of member, maloperation etc. cause personnel to accidentally injure the situation of the situation of evil, circuit electric leakage or damage, realization be effectively protected and every
From.
Two emergency power supply transfer boxes are additionally provided with the first indicator light L1, for indicating power supply, that is, are powered then bright, and power-off is then
Secretly, realize under emergency conditions to controllable knowable to emergency power supply electric power thus supplied.
Cable in the crossfeed cable loop is protected using 3x16mm21E grades of copper core cross-linked polyolefin insulating layer and thermoplastics
Low-smoke halogen-free flame-retardant power cable is covered, current-carrying capacity about 80A, powers more than the first power supply and second source crossfeed peak load
Capacity 40A.
Cable in the crossfeed cable loop is laid along workshop cable tray, and electricity is arranged for A row power supply rooms and B
Crossfeed cable loop between the room of source, the protection of complete trails is implemented in design using fire prevention package, while is supplied for intersecting
The power supply unit of electricity designs corresponding protection, can between two row power supply of effective guarantee fire and it is electric when isolation.
CFI-1T, CFI-3T type emergency service drawer, CFI-1, CFI-3 type load loop based on normal use are taken out
Drawer designs, in the case of accident, being replaced and power supply with the load loop drawer implementation using prototype CFI-1, CFI-3 type
Load is adapted to, while is connected with the corresponding interface of the first emergency power supply transfer box or the second emergency power supply transfer box and is taken electricity, wherein
Displacement situation is as follows：
Table -2 CFI-1T and CFI-3T replace Object table
Referring to Fig. 4, original CFI-1, CFI-3 load loop drawer, CFI-1T, CFI-3T emergency service drawer are cancelled relatively
Drawer is connected the part for taking electricity with distribution board busbar, uses the flexible cable 410 with DS3 French plug for industrial use instead, for being supplied emergent
In the case of electricity, the corresponding interface of the first emergency power supply transfer box or the second emergency power supply transfer box is connected, realizes emergency service
Power supply introduces.
The emergency service built-in drawer fuse F1, contactor capacity are remained unchanged with former corresponding displacement drawer.
Realized because the control of the emergency service drawer is used in drawer, can not take it is converted in first wife's electroplax after
Secondary singal, therefore cancel electrothermal relay, but the safety in circuit can take the breaker in the emergency power supply transfer box of electricity by upstream
Thermal protection, earth leakage protective and the fuse F1 of itself configured is arranged to ensure.
It is unavailable comprising AC and DC for a certain row power loss, therefore the control electricity of the emergency service drawer
Source is that 125V DC are obtained through 420 rectification of power module by drawer major loop 380V AC, is realized outer without relying in the case of accident
The design of portion's DC control supply.
The emergency service drawer be provided with can the corresponding rotating load control circuit of electric control operation, can be existed by operator
Electric control operation under case of emergency, no security risk.
The emergency service drawer is provided with the interface 430 that can directly draw and connect external load state node, can directly display
The operating state of load, effectively solves the stage lost in a 380V power supply and secondary DC control supply in consideration
Be superimposed in the case of power supply accident, the problem of master control room can not confirm load condition, can emergency service drawer panel it is enterprising
Row display load condition directly perceived.
The energy supply control module of the emergency service drawer employs special encapsulation design, avoids the transformation and whole of complexity
The security risk that the electric power loop that flows back to bring is exposed, foreign matter is short-circuit, gets an electric shock.
The emergency service drawer designs isolation and Protection switch in primary and secondary circuit, it is ensured that in each circuit
Link is effectively protected and security isolation.
The emergency service drawer is designed with anti-mis-insertion such as protective device in mechanical structure, it is possible to prevente effectively from inhomogeneity
Special drawer being mistakenly inserted and using, and effectively increases the anti-people in the case of emergent accident because of level.
Referring to Fig. 5, described meet an urgent need takes electric drawer, it takes electric drawer design based on normal use DL1-3 types, in thing
In the case of therefore, electric warehouse interval is taken using spare in advance, the distribution boards of never dead electricity row takes electricity, while with the first emergency power supply
310 corresponding interface of transfer box is connected powers so that the load for crossfeed of meeting an urgent need is taken to the second emergency power supply transfer box 320, should
Suddenly take the warehouse interval of electricity as follows：
The DLI-3T of table -3, which meets an urgent need, takes electric warehouse interval corresponding table
Original DL1-3 types relatively take electric drawer, and DL1-3T types, which are met an urgent need, to be taken electric drawer to cancel its drawer with machine utilization to go out
The main contact that line is connected, uses the flexible cable 112 with DS3 French industrial sockets instead, in the case of emergency service, connection with
The corresponding interface of first emergency power supply transfer box 310 or the second emergency power supply transfer box 320 (the present embodiment 310), realizing should
Anxious power supply never dead electricity arranges the supply arranged to dead electricity.
It is described emergent to take electric drawer using distribution disk space every open spare warehouse interval partition plate, electric pumping is taken by emergent
After drawer is pushed into place, Q2 is utilized to realize the connection current-taking function with distribution board power source bus.
Described meet an urgent need takes the electric built-in drawer circuit breaker Q 2 consistent with emergency power supply transfer box inner breaker Q1 models, related
Parameter is identical with fixed value adjusting, realizes in the case of emergency service is intersected, to the duplicate protection for current supply circuit of meeting an urgent need, it is ensured that do not lose
Electric row power-supply system it is safe for operation.
Described meet an urgent need takes electric drawer to design isolation and Protection switch in primary and secondary circuit, it is ensured that in each circuit
Link is effectively protected and security isolation, and targeted design leakage protection measure, prevents under emergency conditions, personnel
Anxiety, maloperation etc. causes personnel to accidentally injure the situation of evil, and realization is effectively protected and isolates.
Described meet an urgent need takes electric drawer to be provided with the second indicator light L2, for indicating power supply, that is, is powered then bright, and power-off is then dark,
Realize under emergency conditions to controllable knowable to emergency power supply electric power thus supplied.
Described meet an urgent need takes electric drawer to be designed with anti-mis-insertion such as protective device in mechanical structure, it is possible to prevente effectively from inhomogeneity
Special drawer being mistakenly inserted and using, and effectively increases the anti-people in the case of emergent accident because of level.
The system also includes cabinet, under non-emergency operating mode, daily storage emergency service drawer to take with emergent
Electric drawer.The cabinet uses console mode mounting means, and designs using the general RonisY32441 keys of power plant, realizes
With the versatility of power plant key system, facilitate under daily and case of emergency it is timely smoothly take emergent special drawer, at the same time
Possess extra padlock management function, be conducive to the safety management of equipment.
The security ststem for realizing biserial power supply crossfeed provided based on above-described embodiment, the present invention also provides one kind
The security method menu of biserial power supply crossfeed is realized, as shown in fig. 6, including the following steps：
S10, using emergency service drawer substitutional load circuit drawer, the input terminal of emergency service drawer and second are met an urgent need
The second source of the connection of power supply transfer case, the output terminal of emergency service drawer and dead electricity connects.
S20, will meet an urgent need takes the power input of electric drawer to be connected with the first power supply of non-dead electricity, the emergent electricity for taking electric drawer
Source output terminal is connected with the first emergency power supply transfer box.
By the power supply row distribution board of the non-dead electricity of two above step foundation, into the power supply row of dead electricity, load supplies to be electrically connected
Connect.
And then operate the open circuit in emergency service drawer and the emergency power supply transfer box being connected with emergency service drawer
Device, to implement the power transmission to load.
The power switch in emergency service drawer is further operated, to implement accordingly to supply the electric operating of electric valve, so that
Obtain valve and be in required state.
Conversely, the then progressively confession of the power supply row distribution board of the non-dead electricity of power failure operation disconnection load into the power supply row of dead electricity
It is electrically connected；Successively with same power supply and power-down mode, the valve that the power supply of same dead electricity arranges is controlled to complete to correspond to electronic hold
Row function.
By taking 20 dead electricity of second source as an example, after operator has found 20 dead electricity of second source, by one or more emergency services
Drawer replaces 210 corresponding load loop drawer of the second drawer-type switch cabinet, by input terminal (the soft electricity of the emergency service drawer
Cable 410) be connected with the second emergency power supply transfer box 320, the output terminal of emergency service drawer is plugged on the second drawer-type switch cabinet
To replace corresponding load loop drawer on 210.
And then the power output end (flexible cable 112) of electric drawer is taken to connect with the first emergency power supply transfer box 310 by emergent
Connect, emergent the emergent of the first drawer-type switch cabinet 110 for taking electric drawer to be plugged on non-dead electricity is taken into electric space every interior.So as to by the
One power supply 10 is powered to second source 20, and similarly, in the first 10 dead electricity of power supply, second source 20 is powered to the first power supply 10, real
Show the crossfeed of biserial power supply, improve the reliability of power supply.
The embodiment of the present invention, with reference to the application characteristic and equipment situation of nuclear power plant, do not influence original RCV/RIS valves and
On the premise of power supply normal design function, targetedly there is provided a kind of security ststem for realizing biserial power supply crossfeed,
The system does not have an impact the function of the original security system of nuclear power generating sets and equipment.By the system, for RIS001VP/
During the power supply superposition accident that 002VP/003VP, RCV050VP valve are considered under special superposition accident conditions, there is provided
Possess the electrically operated ability in a distant place, through probabilistic safety analysis (PSA) analyze, effectively reduce RCV/RIS correspond to valve every
From failure probability, be conducive to the security control under special superposition accident conditions to unit, do not violate nuclear power plant A/B row electricity
In the case of the design principle of source, in the case of have effectively achieved superposition power supply accident, between A row and the mutually isolated power supply of B row
Intersect the emergency service mechanism mutually rescued, be that other important important point of row for influencing npp safety accident control with running are negative
Lotus, realizes that the emergency service in the case of similar accident provides application foundation and mentality of designing, the application of other same types refers to
This thinking carries out design and practice.
The present invention also provides a kind of power supply control apparatus, including the safety of biserial power supply crossfeed is realized as described above
Sexual system, the structure and principle of the power supply control apparatus have described in detail in said system embodiment, and details are not described herein.
Use above specific case is illustrated the present invention, is only intended to help and understands the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make some simple
Deduce, deform or replace.
Claims (12)
- A kind of 1. security ststem for realizing biserial power supply crossfeed, it is characterised in that including：First power supply；Second source；Crossfeed circuit, for connecting the first power supply and second source, makes the first power supply and second source realize crossfeed.
- 2. the security ststem according to claim 1 for realizing biserial power supply crossfeed, it is characterised in that the intersection Power supply circuit includes：First emergency power supply transfer box, for being connected with the first power supply；Second emergency power supply transfer box, for being connected with second source；Crossfeed cable loop, for connecting the first emergency power supply transfer box and the second emergency power supply transfer box, to realize the The crossfeed of one power supply and second source.
- 3. the security ststem according to claim 2 for realizing biserial power supply crossfeed, it is characterised in that described first Power supply includes the first distribution board, and first distribution board includes the first power source bus and be connected with the first power source bus first Drawer-type switch cabinet, is provided with one or more load loop drawers in first drawer-type switch cabinet；The second source Including the second distribution board, second distribution board includes second source busbar and the second drawer being connected with second source busbar Formula switchgear, is provided with one or more load loop drawers in second drawer-type switch cabinet.
- 4. the security ststem according to claim 3 for realizing biserial power supply crossfeed, it is characterised in that further include： The emergency service drawer being adapted to supply load, for substitutional load circuit drawer, power input and the first emergency power supply turn Case or the connection of the second emergency power supply transfer box are connect to take electricity, power output end connects the first power supply or second source.
- 5. the security ststem according to claim 4 for realizing biserial power supply crossfeed, it is characterised in that further include： It is emergent to take electric drawer, it is emergent to take the power input of electric drawer to be connected with the first power supply or second source to take electricity, it is emergent to take electricity The power output end of drawer is connected with the first emergency power supply transfer box or the second emergency power supply transfer box.
- 6. the security ststem according to claim 5 for realizing biserial power supply crossfeed, it is characterised in that described first Drawer-type switch cabinet and the second drawer-type switch cabinet be both provided with it is emergent take electric space every, for for it is emergent take electric drawer insertion with Take electricity.
- 7. the security ststem according to claim 2 for realizing biserial power supply crossfeed, it is characterised in that the intersection Service cable circuit is using fire prevention package.
- 8. the security ststem according to claim 7 for realizing biserial power supply crossfeed, it is characterised in that the intersection Cable in service cable circuit uses copper core cross-linked polyolefin insulating layer and thermoplastic sheath low-smoke halogen-free flame-retardant power cable.
- 9. the security ststem according to claim 2 for realizing biserial power supply crossfeed, it is characterised in that described first The current supply circuit of emergency power supply transfer box and the second emergency power supply transfer box is both provided with band earth leakage circuit breaker.
- 10. the security ststem according to claim 4 for realizing biserial power supply crossfeed, it is characterised in that described to answer The control power supply of anxious power supply drawer is obtained by emergency service drawer major loop through power module rectification.
- A kind of 11. power supply control apparatus, it is characterised in that including：First power source bus；First drawer-type switch cabinet, is provided with one or more load loop drawers in first drawer-type switch cabinet；With it is exterior for it is emergent take that electric drawer be adapted to emergent take electric space every for taking electric drawer power supply to emergent；First drawer-type switch cabinet is connected with the first power source bus.
- 12. a kind of security method menu for realizing biserial power supply crossfeed, it is characterised in that including as claimed in claim 5 Realize the security ststem of biserial power supply crossfeed；Include the following steps：Using emergency service drawer substitutional load circuit drawer, the input terminal of emergency service drawer and the second emergency power supply are transferred The second source of case connection, the output terminal of emergency service drawer and dead electricity connects；The power input of electric drawer is taken to be connected with the first power supply of non-dead electricity by emergent, the emergent power output end for taking electric drawer It is connected with the first emergency power supply transfer box.
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| CN201711065295.0A CN107947333A (en) | 2017-11-02 | 2017-11-02 | Realize security method menu, system and the control device of biserial power supply crossfeed |
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| CN201711065295.0A CN107947333A (en) | 2017-11-02 | 2017-11-02 | Realize security method menu, system and the control device of biserial power supply crossfeed |
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