CN105811782B - The special integrated variable frequency power supply of uranium enrichment - Google Patents
The special integrated variable frequency power supply of uranium enrichment Download PDFInfo
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- CN105811782B CN105811782B CN201410852282.8A CN201410852282A CN105811782B CN 105811782 B CN105811782 B CN 105811782B CN 201410852282 A CN201410852282 A CN 201410852282A CN 105811782 B CN105811782 B CN 105811782B
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention belongs to power technique fields, specifically disclose a kind of special integrated variable frequency power supply of uranium enrichment.It is by 4 work variable-frequency power sources and 2 standby variable frequency electric power generating compositions；Each work variable-frequency power sources is respectively with loading unilaterally connected；It is connected between the communication ends of 6 variable-frequency power sources by CAN bus；The monitoring side of 6 variable-frequency power sources is each connected between the input terminal of confession pyroelectric monitor system by RS485 buses；The long-range monitoring side of 6 variable-frequency power sources each passes through radio connectivity with DCS tele-control systems；Variable-frequency power sources includes integrated power supply power cabinet and integrated power supply load cabinet.The present invention while efficiency and reliability is improved, has greatly reduced variable-frequency power sources volume by using the PWM count word inversion of 18 arteries and veins phase-shifting transformer rectifications and IGBT and pipe；Entirely the operation of Intermediate frequency power supply system system is more convenient, operation is relatively reliable.
Description
Technical field
The invention belongs to power technique fields, and in particular to a kind of special integrated variable frequency power supply of uranium enrichment.
Background technology
At present, the widely used 190 type variable-frequency power sources of equipment of the commercial centrifugation factory variable-frequency power sources of uranium enrichment, domestic 150-
450 type variable-frequency power sources and 180 type variable-frequency power sources.Wherein 190 type variable-frequency power sources are the power electronics of external middle nineteen sixties
Equipment, domestic 150-450 types variable-frequency power sources are the intermediate frequency power supplies of the PWM inversions of domestic independent development after 2005.This two class electricity
The shortcomings that source, is that the spare of variable-frequency power sources, maintenance switching, output reactive-load compensation, host-initiated are required to individual area of arranging in pairs or groups
Section powering shelf work so that conversion power supply system equipment is not unified enough, makes troubles to subsequent maintenance.Recently 180 introduced
Type variable-frequency power sources realizes the combination of variable-frequency power sources and section powering shelf so that entire electric power system is simple and direct reliable, realizes
Switch operating in a key, but since its output power is low, and every variable-frequency power sources is made of two individual power cabinets, Mei Gegong
Rate cabinet can only one unit of band, can not meet 1-3 unit of a Power supply belt technique cascade requirement.
At present, there are no the central controlled large capacity variable-frequency power sources of integral type suitable for the commercial centrifugation factory of uranium enrichment.
In view of this situation, it is necessary to research and develop the general integral type large capacity variable-frequency power sources suitable for the commercial centrifugation factory of uranium enrichment.
The content of the invention
It is an object of the invention to provide a kind of convenient, reliable special integrated variable frequency power supplys of uranium enrichment, can realize
The networking of Intermediate frequency power supply system system.
Realize the technical solution of the object of the invention：
A kind of special integrated variable frequency power supply of uranium enrichment, it is made of 6 variable-frequency power sources：1# work variable-frequency power sources, 2# works
Make variable-frequency power sources, 3# work variable-frequency power sources, 4# work variable-frequency power sources, spare 1 variable-frequency power sources, spare 2 variable-frequency power sources；1# work becomes
The output terminal of frequency power is connected with the input terminal that 1# working powers load, the output terminal and 2# working powers of 2# work variable-frequency power sources
The input terminal connection of load, the output terminal of 3# work variable-frequency power sources are connected with the input terminal that 3# working powers load, and 4# work becomes
The output terminal of frequency power is connected with the input terminal that 4# working powers load；1# work variable-frequency power sources, 2# work variable-frequency power sources, 3# works
Make to connect by spare 1 main line between the input terminal of variable-frequency power sources, 4# work variable-frequency power sources and spare 1 variable-frequency power sources；1# works
Variable-frequency power sources, 2# work variable-frequency power sources, 3# work variable-frequency power sources, 4# work variable-frequency power sources and spare 2 variable-frequency power sources input terminal
Between pass through spare 2 main line connect；It is connected between the communication ends of 6 variable-frequency power sources by CAN bus；The prison of 6 variable-frequency power sources
End is surveyed each to connect by RS485 buses between the input terminal of confession pyroelectric monitor system；For pyroelectric monitor system feedback end and
The receiving terminal connection of control room monitor station；The long-range monitoring side of 6 variable-frequency power sources each passes through nothing with DCS tele-control systems
Line is electrically connected；The feedback end of DCS tele-control systems is connected with the receiving terminal of control room monitor station.
The variable-frequency power sources includes integrated power supply power cabinet and integrated power supply load cabinet.
It is whole that the integrated power supply power cabinet includes PWM inverter, dc-link capacitance, 18 arteries and veins phase shift isolating transformers
Stream, main electric inlet wire power distribution equipment, soft circuit and controller；The input terminal of main electricity inlet wire power distribution equipment connects with power input
Logical, the output terminal of main electricity inlet wire power distribution equipment is connected with the input terminal of soft circuit, the output terminal of soft circuit and 18 arteries and veins phase shifts
Isolating transformer rectification, dc-link capacitance, PWM inverter sequentially connect；PWM inverter, dc-link capacitance, 18 arteries and veins phase shifts
Isolating transformer rectification, main electric inlet wire power distribution equipment, the control terminal of soft circuit connect respectively with controller.
The integrated power supply load cabinet includes QS1 performance loops input disconnecting link, spare 1/ spare 2 circuit double-throws of QS2
Disconnecting link, QS3 meet an urgent need maintenance circuit disconnecting link, QF1 major loops breaker, QF2 back-up circuits breaker, output short-circuit contactor, defeated
Go out compensating capacitance group, impact vehicle/compensation vehicle interface and QS4 loads output disconnecting link；QS1 performance loops input disconnecting link input terminal with
The output terminal connection of PWM inverter, the input terminal of the output terminal and QF1 major loop breakers of QS1 performance loops input disconnecting link connect
Logical, the output terminal of QF1 major loop breakers is connected with the input terminal of QS4 loads output disconnecting link；The output of QF1 major loop breakers
End is respectively communicated with output short-circuit contactor, output compensating capacitance group, impact vehicle/compensation vehicle interface；QS2 spare 1/ spare 2 times
Spare 1 input terminal of road double-throw disconnecting link is connected with spare 1 trunk interface, and spare the 2 of spare 1/ spare 2 circuit double-throw disconnecting links of QS2
Input terminal is connected with spare 2 trunk interface；The output terminal of spare 1/ spare 2 circuit double-throw disconnecting links of QS2 and the open circuit of QF2 back-up circuits
The input terminal connection of device；The output terminal of QF2 back-up circuit breakers is connected with the input terminal of QS4 loads output disconnecting link；QS3 meets an urgent need
The input terminal of maintenance circuit disconnecting link is connected with spare 2 trunk interface；QS3, which meets an urgent need, overhauls the output terminal of circuit disconnecting link and QS4 loads
Export the maintenance input terminal connection of disconnecting link；The output terminal of QS4 loads output disconnecting link is connected with load output interface；QS1 works back
Road input disconnecting link, spare 1/ spare 2 circuit double-throw disconnecting links of QS2, QF1 major loops breaker, QF2 back-up circuits breaker, output
Short-circuiting contactor, output compensating capacitance group, the control terminal of impact vehicle/compensation vehicle interface connect respectively with controller.
By the liter week of three phases when the work variable-frequency power sources works：
The liter week of first stage：Integrated power supply power cabinet accesses the alternating current of 380V/50Hz；Impact vehicle/compensation vehicle interface
Connection impact vehicle opens QS4 loads output disconnecting link, the power supply of 36V/50Hz is provided for load；
The liter week of second stage：PWM inverter is triggered, opens QS1 performance loops input disconnecting link, QF1 major loop breakers,
200V electric energy obtained by PWM inverter inversion for load is powered, while impacts vehicle/compensation vehicle interface connection compensation vehicle,
Power back-off is carried out for load；The frequency of the 200V electric energy is 400Hz~700Hz；
The liter week of phase III：PWM inverter is adjusted, the 380V electric energy of gained is powered for load；The 380V electric energy
Frequency be 1400Hz~1700Hz.
When the work variable-frequency power sources is shut down
PWM inverter, QF1 major loop breakers are disconnected, and connects output short-circuit contactor, the back-emf of return is removed
Totally.
When the work variable-frequency power sources breaks down,
QF1 major loop breakers are disconnected, and open QF2 back-up circuit breakers, fail operation variable-frequency power sources is total by CAN
Line inquires about the use state of standby variable frequency power supply, if spare 1 variable-frequency power sources is not used by, spare 1/ spare 2 circuits of QS2 are double
It throws disconnecting link to beat to spare 1 input terminal, spare 1 variable-frequency power sources is load supplying；If spare 1 variable-frequency power sources used and spare 2
Variable-frequency power sources is not used by, then spare 1/ spare 2 circuit double-throw disconnecting links of QS2 are beaten to spare 2 input terminal, and spare 2 variable-frequency power sources is
Load supplying.
The advantageous effects of the present invention are：
(1) a kind of special integrated variable frequency power supply of uranium enrichment provided by the invention is by using 18 arteries and veins phase-shifting transformer rectifications
With the PWM count word inversion of IGBT and pipe, while efficiency and reliability is improved, variable-frequency power sources volume has been greatly reduced；
(2) load output counter of the invention is made of Switch device and corresponding driving circuit, realizes load output
Automatically with manual switching function and output no-power compensation function；
(3) present invention is by the combination of variable-frequency power sources and section powering shelf, while meeting variable-frequency power sources band load and require
Reduce its structure size, and optimisation technique parameter and index, can realize the networking of Intermediate frequency power supply system system so that entire intermediate frequency supplies
The operation of electric system is more convenient, operation is relatively reliable.
Description of the drawings
Fig. 1 is the special integrated variable frequency power supply architecture schematic diagram of uranium enrichment of the present invention；
Fig. 2 is the communication networking schematic diagram of the special integrated variable frequency power supply of uranium enrichment；
Fig. 3 is the structure diagram of a variable-frequency power sources.
In figure：1. integrated power supply power cabinet, 2. integrated power supply load cabinets, 3.1# work variable-frequency power sources, 4.2# work
Variable-frequency power sources, 5.3# work variable-frequency power sources, 6.4# work variable-frequency power sources, spare 1 variable-frequency power sources of 7. integrations, 8. integrations are spare
2 variable-frequency power sources, the load of 9.1# working powers, the load of 10.2# working powers, the load of 11.3# working powers, 12.4# working powers
Load, 13. spare 1 main lines, 14 spare 2 main lines, 15. power supply monitoring system signal acquisition cabinets, 16.DCS tele-control systems,
17. control room monitor station, 18.RS485 buses, 19.CAN buses, 20.QS4 loads output disconnecting link, 21.PWM inverters, 22. are directly
Flow bus capacitor, 23.18 arteries and veins phase shift isolating transformer rectifications, 24. main electric inlet wire power distribution equipments, 25. soft circuits, 26. controls
Device, 27.QS1 performance loops input disconnecting link, spare 1/ spare 2 circuit double-throw disconnecting links of 28.QS2,29.QS3 meet an urgent need and overhaul circuit knife
Lock, 30.QF1 major loops breaker, 31.QF2 back-up circuits breaker, 32. output short-circuit contactors, 33. output compensating electric capacities
Group, 34. impact vehicle/compensation vehicle interfaces, a. power inputs, spare 1 trunk interfaces of b., spare 2 trunk interfaces of c., d. loads
Output interface.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the special integrated variable frequency power supply of uranium enrichment provided by the present invention is made of 6 variable-frequency power sources, often
Platform variable-frequency power sources is single channel output；Wherein, four work variable-frequency power sources：1# work variable-frequency power sources 3,2# work variable-frequency power sources 4,
3# work variable-frequency power sources 5,4# work variable-frequency power sources 6, two standby variable frequency power supplys：Spare 1 variable-frequency power sources 7, spare 2 variable-frequency power sources
8.Every variable-frequency power sources each includes interconnected integrated power supply power cabinet 1 and integrated power supply load cabinet 2.1# works
The output terminal of variable-frequency power sources 3 is connected with the input terminal of 1# working powers load 9, the output terminal and 2# works of 2# work variable-frequency power sources 4
Make the input terminal connection of power source loads 10, the output terminal and the input terminal of 3# working powers load 11 of 3# work variable-frequency power sources 5 connect
Logical, the output terminal of 4# work variable-frequency power sources 6 is connected with the input terminal of 4# working powers load 12.1# work variable-frequency power sources 3,2# works
Make variable-frequency power sources 4,3# work variable-frequency power sources 5,4# to work between variable-frequency power sources 6 and the input terminal of spare 1 variable-frequency power sources 7 by standby
It is connected with 1 main line 13, when 1# work variable-frequency power sources 3,2# work variable-frequency power sources 4,3# work variable-frequency power sources 5,4# work variable-frequency electrics
When one of source breaks down or needs periodic maintenance, spare 1 main line 13 is electric by the power supply failure of spare 1 variable-frequency power sources 7
Source drives relevant work power source loads.1# work variable-frequency power sources 3,2# work variable-frequency power sources 4,3# work variable-frequency power sources 5,4# works
Make to connect by spare 2 main line 14 between the input terminal of variable-frequency power sources 6 and spare 2 variable-frequency power sources 8.Spare 2 main line 14 and spare 1
The effect of main line 13 is identical.Standby variable frequency power supply can be automatic to realize by the operating status of automatic decision work variable-frequency power sources
It is spare, it is spare can also manually to switch realization.
As shown in Fig. 2, being connected between the communication ends of 6 variable-frequency power sources by CAN bus 19, divide between realization variable-frequency power sources
Enjoy operation information.The monitoring side of 6 variable-frequency power sources each passes through RS485 buses between the input terminal of confession pyroelectric monitor system 15
18 connections.It is connected for the feedback end of pyroelectric monitor system 15 with the receiving terminal of control room monitor station 17.Pass through for pyroelectric monitor system 15
RS485 buses 18 gather the operating status of 6 variable-frequency power sources, and operating status is sent to control room monitor station 17, control room
Monitor station 17 can also be by controlling the opening and closing of 6 variable-frequency power sources for pyroelectric monitor system 15.6 variable-frequency power sources
Long-range monitoring side each pass through radio connectivity with DCS tele-control systems 16.The feedback end of DCS tele-control systems 16
It is connected with the receiving terminal of control room monitor station 17.DCS tele-control systems 16 receive the operating status of 6 variable-frequency power sources, and will
Operating status is sent to control room monitor station 17, and control room monitor station 17 can also become 6 by DCS tele-control systems 16
The opening and closing of frequency power are controlled.
As shown in figure 3, a variable-frequency power sources includes integrated power supply power cabinet 1 and integrated power supply load cabinet 2.Integration
Power cabinet 1 is matched somebody with somebody including PWM inverter 21, dc-link capacitance 22,18 arteries and veins phase shift isolating transformer rectifications 23, main electric inlet wire
Electric installation 24, soft circuit 25 and controller 26.The input terminal of main electricity inlet wire power distribution equipment 24 is connected with power input a,
The output terminal of main electricity inlet wire power distribution equipment 24 is connected with the input terminal of soft circuit 25, the output terminal of soft circuit 25 and the shifting of 18 arteries and veins
It isolates transformer rectification 23, dc-link capacitance 22, PWM inverter 21 sequentially connect.PWM inverter 21, dc bus electricity
Hold 22,18 arteries and veins phase shift isolating transformer rectifications 23, main electric inlet wire power distribution equipment 24, soft circuit 25 control terminal respectively with control
Device 26 connects.
Integrated power supply load cabinet 2 includes QS1 performance loops input disconnecting link 27, spare 1/ spare 2 circuit double-throw disconnecting links of QS2
28th, QS3, which meets an urgent need, overhauls circuit disconnecting link 29, QF1 major loops breaker 30, QF2 back-up circuits breaker 31, output short-circuit contactor
32nd, compensating capacitance group 33, impact vehicle/compensation vehicle interface 34 and QS4 loads output disconnecting link 20 are exported.QS1 performance loops input knife
The input terminal of lock 27 is connected with the output terminal of PWM inverter 21, and the output terminal of QS1 performance loops input disconnecting link 27 is returned with QF1 master
The input terminal connection of circuit breaker 30, the input terminal of the output terminal and QS4 loads output disconnecting link 20 of QF1 major loops breaker 30 connect
It is logical.The output terminal of QF1 major loops breaker 30 and output short-circuit contactor 32, output compensating capacitance group 33, impact vehicle/compensation vehicle
Interface 34 is respectively communicated with.Spare 1 input terminal of spare 1/ spare 2 circuit double-throw disconnecting links 28 of QS2 is connected with spare 1 trunk interface b,
Spare 2 input terminal of spare 1/ spare 2 circuit double-throw disconnecting links 28 of QS2 is connected with spare 2 trunk interface c.QS2 spare 1/ spare 2
The output terminal of circuit double-throw disconnecting link 28 is connected with the input terminal of QF2 back-up circuits breaker 31.QF2 back-up circuits breaker 31
Output terminal is connected with the input terminal of QS4 loads output disconnecting link 20.QS3 meets an urgent need the input terminal of maintenance circuit disconnecting link 29 and spare 2 dry
Line interface c is connected.Meet an urgent need output terminal and the QS4 loads of maintenance circuit disconnecting link 29 of QS3 exports the maintenance input terminal of disconnecting link 20 and connects.
The output terminal of QS4 loads output disconnecting link 20 is connected with load output interface d.QS1 performance loops input disconnecting link 27, QS2 spare 1/
It is spare 2 circuit double-throw disconnecting link 28, QF1 major loops breaker 30, QF2 back-up circuits breaker 31, output short-circuit contactor 32, defeated
Go out compensating capacitance group 33, the control terminal of impact vehicle/compensation vehicle interface 34 connects respectively with controller 26.
Controller 26 is the control axis of a variable-frequency power sources, to manipulating for each component.Main electricity inlet wire distribution
Device 24 carries out distribution to the power electricity of input, and electric current then is conveyed to 18 arteries and veins phase shift isolating transformers by soft circuit 25
23,18 arteries and veins phase shift isolating transformer rectification 23 of rectification ensure that variable-frequency power sources input power factor reaches more than 0.95.18 arteries and veins move
It isolates transformer rectification 23 to charge to dc-link capacitance 22, when charging to a certain extent, triggering PWM inverter 21 simultaneously will
Electric current is output to integrated power supply load cabinet 2 by LC filtering, passes sequentially through QS1 performance loops input disconnecting link 27, QF1 major loops
Breaker 30, QS4 loads output disconnecting link 20 are output in load.When spare 1/ spare 2 circuit double-throw disconnecting links 28 of QS2 are beaten to spare
During 1 input terminal, spare 1 variable-frequency power sources, 7 powering load of integration, specially spare 1 variable-frequency power sources 7 of integration pass sequentially through standby
With 1 spare 1/ spare 2 circuit double-throw disconnecting link 28 of trunk interface b, QS2, QF2 back-up circuits breaker 31, QS4 loads output disconnecting link
20 are output in load.When spare 1/ spare 2 circuit double-throw disconnecting links 28 of QS2 are beaten to spare 2 input terminal, integration spare 2 becomes
8 powering load of frequency power is specially that spare 2 variable-frequency power sources 8 of integration passes sequentially through spare 2 trunk interface c, QS2 spare 1/
Spare 2 circuit double-throw disconnecting link 28, QF2 back-up circuits breaker 31, QS4 loads output disconnecting link 20 are output in load.Work as needs
When overhauling a variable-frequency power sources, spare 2 variable-frequency power sources 8 of integration passes sequentially through spare 2 trunk interface c, QS3 and meets an urgent need maintenance circuit
Disconnecting link 29, QS4 loads output disconnecting link 20 are output in load.The function of output short-circuit contactor 32 is：After power cut-off,
QF1 major loops breaker 30 disconnects, and the back-emf for loading return is removed totally by output short-circuit contactor 32.Output compensation electricity
The function of appearance group 33 is：According to the difference for being supported on performance characteristic under each operating mode, switching is carried out to load.Impact vehicle/compensation vehicle
The function of interface 34 is：By switching shock vehicle and compensation vehicle, realize the power supply to load or power back-off, realize the big of load
Current start rises week.
The present invention the course of work be：
The special integrated variable frequency power supply of uranium enrichment provided by the present invention is under normal circumstances by four work variable-frequency power sources
Drive loaded work piece.For every work variable-frequency power sources, integrated power supply power cabinet 1 accesses the alternating current of 380V/50Hz.Impact
Vehicle/connection impact the vehicle of compensation vehicle interface 34, opens QS4 loads output disconnecting link 20, the power supply of 36V/50Hz is provided for load, is known as
The liter week of first stage.After group load reaches the synchronous rotational speed of 50Hz, PWM inverter 21 is triggered, opens QS1 performance loops
Disconnecting link 27, QF1 major loops breaker 30 are inputted, the 200V/500Hz electric energy obtained by 21 inversion of PWM inverter is carried out for load
Power supply, while vehicle/connection compensation vehicle of compensation vehicle interface 34 is impacted, power back-off is carried out for load, is known as the liter week of second stage.
After group load reaches the synchronous rotational speed of 500Hz, then PWM inverter 21 is adjusted, band dynamic load enters final operating mode, i.e.,
380V/1600Hz.When needing to shut down, PWM inverter 21, QF1 major loops breaker 30 are disconnected, and connects output short-circuit contactor
32, the back-emf of return is removed clean.
When the variable-frequency power sources that works breaks down, QF1 major loops breaker 30 is disconnected, and opens QF2 back-up circuits
Breaker 31 uses standby variable frequency power supply：Spare 1 variable-frequency power sources 7, spare 2 variable-frequency power sources 8.Fail operation variable-frequency power sources passes through
CAN bus 19 inquires about the use state of standby variable frequency power supply, if spare 1 variable-frequency power sources 7 is not used by, QS2 spare 1/ is standby
It is beaten with 2 circuit double-throw disconnecting links 28 to spare 1 input terminal, spare 1 variable-frequency power sources 7 is load supplying；If spare 1 variable-frequency power sources 7
It being used and spare 2 variable-frequency power sources 8 is not used by, then spare 1/ spare 2 circuit double-throw disconnecting links 28 of QS2 are beaten to spare 2 input terminal,
Spare 2 variable-frequency power sources 8 is load supplying.
When needing to overhaul a work variable-frequency power sources, disconnect QS1 performance loops input disconnecting link 27, disconnect QS2
Spare 1/ spare 2 circuit double-throw disconnecting link 28, open QS3 meet an urgent need maintenance circuit disconnecting link 29, spare 2 variable-frequency power sources 8 for load and
Awaiting Overhaul work variable-frequency power sources power supply.
The present invention is explained in detail above in conjunction with drawings and examples, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also make on the premise of present inventive concept is not departed from
Go out various change.The prior art may be employed in the content not being described in detail in the present invention.
Claims (7)
1. a kind of special integrated variable frequency power supply of uranium enrichment, it is characterised in that：It is made of 6 variable-frequency power sources：1# work frequency conversions
Power supply (3), 2# work variable-frequency power sources (4), 3# work variable-frequency power sources (5), 4# work variable-frequency power sources (6), spare 1 variable-frequency power sources
(7), spare 2 variable-frequency power sources (8)；The output terminal of 1# work variable-frequency power sources (3) and the input terminal of 1# working powers load (9) connect
Logical, the output terminal of 2# work variable-frequency power sources (4) is connected with the input terminal of 2# working powers load (10), 3# work variable-frequency power sources
(5) output terminal is connected with the input terminal of 3# working powers load (11), and output terminal and the 4# of 4# work variable-frequency power sources (6) work
The input terminal connection of power source loads (12)；1# work variable-frequency power sources (3), 2# work variable-frequency power sources (4), 3# work variable-frequency power sources
(5), 4# works and is connected between variable-frequency power sources (6) and the input terminal of spare 1 variable-frequency power sources (7) by spare 1 main line (13)；1# works
Make variable-frequency power sources (3), 2# work variable-frequency power sources (4), 3# work variable-frequency power sources (5), 4# work variable-frequency power sources (6) and spare 2 to become
It is connected between the input terminal of frequency power (8) by spare 2 main line (14)；Pass through CAN bus between the communication ends of 6 variable-frequency power sources
(19) connect；The monitoring side of 6 variable-frequency power sources each passes through RS485 buses between the input terminal for pyroelectric monitor system (15)
(18) connect；It is connected for the feedback end of pyroelectric monitor system (15) with the receiving terminal of control room monitor station (17)；6 variable-frequency power sources
Long-range monitoring side each passes through radio connectivity with DCS tele-control systems (16)；The feedback of DCS tele-control systems (16)
End is connected with the receiving terminal of control room monitor station (17).
2. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 1, it is characterised in that：The work becomes
Frequency power includes integrated power supply power cabinet (1) and integrated power supply load cabinet (2).
3. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 2, it is characterised in that：The integration
Power cabinet (1) includes PWM inverter (21), dc-link capacitance (22), 18 arteries and veins phase shift isolating transformer rectifications (23), master
Electric inlet wire power distribution equipment (24), soft circuit (25) and controller (26)；The input terminal and work(of main electricity inlet wire power distribution equipment (24)
Rate input interface (a) connects, and the output terminal of main electricity inlet wire power distribution equipment (24) is connected with the input terminal of soft circuit (25), soft
The output terminal of circuit (25) and 18 arteries and veins phase shift isolating transformer rectifications (23), dc-link capacitance (22), PWM inverter (21) are suitable
Secondary connection；PWM inverter (21), dc-link capacitance (22), 18 arteries and veins phase shift isolating transformer rectifications (23), main electric inlet wire distribution
Device (24), the control terminal of soft circuit (25) connect respectively with controller (26).
4. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 3, it is characterised in that：The integration
Power supply load cabinet (2) is answered including QS1 performance loops input disconnecting link (27), spare 1/ spare 2 circuit double-throw disconnecting links (28) of QS2, QS3
Anxious maintenance circuit disconnecting link (29), QF1 major loops breaker (30), QF2 back-up circuits breaker (31), output short-circuit contactor
(32), compensating capacitance group (33), impact vehicle/compensation vehicle interface (34) and QS4 loads output disconnecting link (20) are exported；QS1 works back
The input terminal of road input disconnecting link (27) is connected with the output terminal of PWM inverter (21), and QS1 performance loops input the defeated of disconnecting link (27)
Outlet is connected with the input terminal of QF1 major loops breaker (30), and the output terminal and QS4 loads of QF1 major loops breaker (30) are defeated
Go out the input terminal connection of disconnecting link (20)；The output terminal of QF1 major loops breaker (30) is mended with output short-circuit contactor (32), output
Repay capacitance group (33), impact vehicle/compensation vehicle interface (34) is respectively communicated with；Spare 1/ spare 2 circuit double-throw disconnecting links (28) of QS2 it is standby
Connected with 1 input terminal with spare 1 trunk interface (b), spare 2 input terminal of spare 1/ spare 2 circuit double-throw disconnecting links (28) of QS2 with
Spare 2 trunk interface (c) connection；The output terminal of spare 1/ spare 2 circuit double-throw disconnecting links (28) of QS2 and the open circuit of QF2 back-up circuits
The input terminal connection of device (31)；The input terminal of the output terminal of QF2 back-up circuits breaker (31) and QS4 loads output disconnecting link (20)
Connection；QS3 meet an urgent need maintenance circuit disconnecting link (29) input terminal connected with spare 2 trunk interface (c)；QS3, which meets an urgent need, overhauls circuit knife
The output terminal of lock (29) is connected with the maintenance input terminal of QS4 loads output disconnecting link (20)；The output of QS4 loads output disconnecting link (20)
End is connected with load output interface (d)；QS1 performance loops input disconnecting link (27), spare 1/ spare 2 circuit double-throw disconnecting links of QS2
(28), QF1 major loops breaker (30), QF2 back-up circuits breaker (31), output short-circuit contactor (32), output compensation electricity
Appearance group (33), the control terminal of impact vehicle/compensation vehicle interface (34) connect respectively with controller (26).
5. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 4, it is characterised in that：The work becomes
By the liter week of three phases when frequency power works：
The liter week of first stage：Integrated power supply power cabinet (1) accesses the alternating current of 380V/50Hz；Impact vehicle/compensation vehicle interface
(34) connection impact vehicle, opens QS4 loads output disconnecting link (20), and the power supply of 36V/50Hz is provided for load；
The liter week of second stage：PWM inverter (21) is triggered, opens QS1 performance loops input disconnecting link (27), QF1 major loops break
200V electric energy obtained by PWM inverter (21) inversion for load is powered, while impacts vehicle/compensation vehicle and connect by road device (30)
Mouth (34) connection compensation vehicle, power back-off is carried out for load；The frequency of the 200V electric energy is 400Hz~700Hz；
The liter week of phase III：PWM inverter (21) is adjusted, the 380V electric energy of gained is powered for load；The 380V electric energy
Frequency be 1400Hz~1700Hz.
6. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 5, it is characterised in that：The work becomes
When frequency power is shut down
PWM inverter (21), QF1 major loops breaker (30) are disconnected, and connects output short-circuit contactor (32), by the anti-of return
Potential is removed clean.
7. a kind of special integrated variable frequency power supply of uranium enrichment according to claim 6, it is characterised in that：The work becomes
When frequency power breaks down,
QF1 major loops breaker (30) is disconnected, and opens QF2 back-up circuits breaker (31), fail operation variable-frequency power sources passes through
CAN bus (19) inquires about the use state of standby variable frequency power supply, if spare 1 variable-frequency power sources (7) is not used by, QS2 is spare
1/ spare 2 circuit double-throw disconnecting link (28) is beaten to spare 1 input terminal, and spare 1 variable-frequency power sources (7) is load supplying；If spare 1 becomes
Frequency power (7) is used and spare 2 variable-frequency power sources (8) is not used by, then spare 1/ spare 2 circuit double-throw disconnecting links (28) of QS2 are beaten
To spare 2 input terminal, spare 2 variable-frequency power sources (8) is load supplying.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108270362B (en) * | 2016-12-30 | 2020-12-15 | 中核陕西铀浓缩有限公司 | Combined intermediate frequency power supply based on DSP and FPGA parallel machine control |
| CN108270361B (en) * | 2016-12-30 | 2020-12-15 | 中核陕西铀浓缩有限公司 | One-stop type intermediate frequency power supply special for uranium concentration |
| CN109916644A (en) * | 2017-12-13 | 2019-06-21 | 中核兰州铀浓缩有限公司 | It is centrifuged uranium enrichment process system ftercompction machine electromechanics experimental rig |
| CN109933036A (en) * | 2017-12-15 | 2019-06-25 | 中核兰州铀浓缩有限公司 | A kind of centrifuge intermediate frequency power supply system comprehensive parameters network monitoring module |
| CN109038249A (en) * | 2018-06-29 | 2018-12-18 | 中核陕西铀浓缩有限公司 | Centrifugation cascade intermediate frequency parallel connection power supply |
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