CN207994900U - Three level high-voltage high-power water-cooling frequency convertor system - Google Patents
Three level high-voltage high-power water-cooling frequency convertor system Download PDFInfo
- Publication number
- CN207994900U CN207994900U CN201721913031.1U CN201721913031U CN207994900U CN 207994900 U CN207994900 U CN 207994900U CN 201721913031 U CN201721913031 U CN 201721913031U CN 207994900 U CN207994900 U CN 207994900U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- module
- bridge arm
- power
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
The utility model is related to a kind of three level high-voltage high-power water-cooling frequency convertor systems, including：Digital regulator cubicle, the frequency-charger cabinet based on doube bridge arm power cell, water cycle cooling system cabinet, the component mutually assembles from left to right and the high-power water-cooling frequency converter system of cabinet formation complete set, wherein：Exciting Windings for Transverse Differential Protection cabinet uses 6 impulse commutation of three-phase, realizes the regulatory function to synchronous machine motor rotor volume exciting current；Digital regulator cubicle uses DSP+FPGA structure vector controllers, using 32-bit number model processor as core；Bridge arm parallel connection frequency conversion device cabinet the modes such as in parallel, doube bridge arm power cell modules in parallel or the frequency-charger cabinet parallel connection based on doube bridge arm power cell can expand frequency converter complete machine power using cell module, the topological structure mode of bridge arm parallel connection by doube bridge arm power cell module internal or so bridge arm.The utility model can effectively realize that Fast Installation is safeguarded, frequency converter complete machine realizes 2 times of even greater output powers on the basis of prior art volume.
Description
Technical field
The present invention relates to a kind of frequency converters, and in particular to three level of one kind can expand the change of bridge arm parallel high voltage high-power water-cooling
Frequency device belongs to electric control structure component technology field.
Background technology
Big-power transducer application technology at present（CN201420283871.4 patents of invention）Comparative maturity, it is most of
It can realize corresponding modularized design, the radiating efficiency in order to improve power component, which also gradually uses, to be becoming better and approaching perfection day by day
Water cooling method, be greatly improved the output power of complete machine, but after output power is promoted to a certain extent, frequency conversion
Device overall structure volume is more than seriously onsite application environmental demand：The heat dissipation water cooling version of the prior art uses traditional single channel string
It is coupled structure, radiating efficiency is relatively low, loss is big；The single power cell module internal of traditional frequency converter generally uses single bridge arm mould
Three level upper and lower bridge arms of formula, the prior art are the bilaterals for being separately mounted at one piece of cooled plate, each power cell module can only
The frequency conversion function of single bridge arm is realized, so needing 2 sets of frequency converter cabinet bodies that could realize that complete three-level AC directly hands over rectification, inverse
Become frequency converter function, causes existing frequency changer volume too big；Since the component of a bridge arm is mounted on cooled plate two
Side, upper and lower bridge arm circuit is longer, needs to suppress bus overvoltage using over-pressed Absorption Capacitance；Each power component is controlled, is touched
The functions such as hair, signal transmission, remote monitoring, power supply are required for individually using one group of optical fiber and power cord, so each power list
First module is externally required for connecting a large amount of optical fiber and power cord, causes whole wiring chaotic；In addition to power cell module, other
Component arrangement is chaotic, disperses, and is unfavorable for expanding application range；And when using more frequency converter parallel ways, due to power cell
Module each other distance in parallel relatively far away from, because of the dispersibility of internal component parameter, it is possible between more frequency converters
It is formed and endangers prodigious circulation, bus overvoltage can not be effectively inhibited, directly affect the safety of system；Because lacking effective
Salvo is monitored, cooled plate, power component working condition can not be detected in real time, and power tube is caused to damage again and again.Therefore
It is badly in need of a kind of new design scheme and solves these technical problems.
Invention content
Exactly for the technical problems in the prior art, bridge arm parallel connection can be expanded to the present invention by providing three level of one kind
High-power water-cooling frequency converter, a whole set of frequency convertor system use bridge arm parallel-connection structure, and global design is more compact, can be effective
Reduction system circulation, it is suppressed that the problems such as bus overvoltage, and frequency converter realizes 2-3 times defeated on the basis of existing structure volume
Go out power ascension.No by the parallel connection of doube bridge arm power cell module internal or so bridge arm, doube bridge arm power cell modules in parallel etc.
Same mode, quantity are combined, and flexible and diverse realizes the expansion of a variety of output powers of frequency converter, and adapting to different output power needs
The application scenario asked；Pole is all occupied in space occupancy, Cost comparisons, stable and reliable for performance, output power dilatation etc.
Big performance advantage further improves the application range of output of products power.
To achieve the goals above, technical scheme is as follows, a kind of three level high-voltage high-power water-cooling frequency converter
System, which is characterized in that including：Digital regulator cubicle, the frequency-charger cabinet based on doube bridge arm power cell, water cycle cooling system
Cabinet；Frequency-charger cabinet, water cycle cooling system cabinet of the digital regulator cubicle 2 based on doube bridge arm power cell are mutual from left to right
Assemble the high-power water-cooling frequency converter system that simultaneously cabinet forms complete set.
As an improvement of the present invention, the digital regulator cubicle 2 includes core control module, auxiliary power supply system
System, interactive system and cabinet, the core control module uses the vector controller of DSP+FPGA structures, with 32 digits
Font processor is core；Realize velocity close-loop control, unity power factor control, variable frequency vector control, current closed-loop control
The functions such as system, fault diagnosis.Mounted on digital adjusting cabinet front；The auxiliary power supply system is used to assist for whole system
Control provides stable operation power supply, is mounted on cabinet rear portion；The interactive system is operated using touch screen human-computer dialogue
Interface is mounted on cabinet front medial location.
As an improvement of the present invention, the frequency-charger cabinet based on doube bridge arm power cell includes cabinet and peace
Three groups of doube bridge arm power cell modules, electric discharge module, sensor module, spare expansion Support Capacitor module in cabinet,
The doube bridge arm power cell module is mounted on cabinet front；The electric discharge module is bolted on cabinet upper left-hand,
The sensor module is bolted on cabinet upper right, and the spare expansion Support Capacitor module is arranged in doube bridge arm
Above power cell module.Frequency converter based on doube bridge arm power cell uses AFE Active Front End technologies, advanced back-to-back
Three-level AC directly hands over conversion system, ensures the realization four quadrant running that converter power supply side is stablized.Wherein power cell module is adopted
With doube bridge arm mode, cooled plate both sides in power cell module are real respectively per side one bridge arm of individually designed three-level converter
The now rectification of single bridge arm, inversion function, use as common frequency-charger cabinet, and three sets of power cell modules realize that one has completely
Rectification, inversion function frequency-charger cabinet.When needing to extend power converter output, left and right can carry out bridge arm parallel connection, individually real
Existing rectification or inversion function, the structure after optimization can effectively inhibit bus overvoltage, frequency converter parallel connection circulation problem, height
Overall performance.
As an improvement of the present invention, the doube bridge arm power cell module includes that unit housings component and setting exist
Radiating water cooling board, power device, two single bridge arm exchange laminated bus, DC support laminated bus and the direct current branch of enclosure interior
Support capacitance；The radiating water cooling board both sides are evenly distributed with the power device of a bridge arm per side, and it is female to install a single bridge arm exchange lamination
Line, it is individually designed at a three-level converter bridge arm；It is folded that the DC support laminated bus is mounted on two single bridge arm exchanges
Layer busbar top connects two single bridge arms and exchanges 3 DC side of laminated bus, and it is female that DC support capacitance is mounted on DC support lamination
On line.The doube bridge arm power cell module uses three level major loop topological structures, generates 5 rank output line voltages, and electric current is abnormal
Variability is low, and electromagnetic noise is small, and dynamic and static state performance is excellent, and switching frequency is low, and loss is small, efficient, realizes truly
Active four quadrant running.In doube bridge arm power cell module internal cooled plate both sides, a three-level frequency-converter is separately provided per side
Device bridge arm realizes that rectification, the inversion function of single bridge arm, three sets of doube bridge arm power cell modules are mounted on cabinet front respectively；It needs
When extending power converter output, described doube bridge arm power cell module or so carries out bridge arm parallel connection, single power cell mould
Group realizes a rectification or inversion function, and the radiating water cooling board is interior on the basis of the prior art two-sided installation, using new
Water supply flow, stream damage is greatly reduced in three runner parallel ways of type on the basis of ensureing cooled plate radiating efficiency；In runner
Using serration formula structure, so that coolant liquid is formed wave flowing, further increase heat dissipation effect, effectively reduces water circulation system dress
Machine capacity saves complete machine cost.
As an improvement of the present invention, water circulation cooling system include water-wind-heat exchanger, it is major cycle water pump, swollen
Flatulence capsule, deionization system and monitor control system, the major cycle water pump, ion system, small pump are adopted by system pipeline
It is fixedly mounted on core framework lower part, swelling gasbag, the monitor control system side of being connected by screw bolts with bolt, flange connection
Formula is fixedly mounted on core framework top, and water-wind-heat exchanger is gone to be fixed on outdoor carry out heat exchange.
As an improvement of the present invention, frequency convertor system further includes Exciting Windings for Transverse Differential Protection cabinet, and the Exciting Windings for Transverse Differential Protection cabinet setting exists
The other side of digital regulator cubicle.
As an improvement of the present invention, the Exciting Windings for Transverse Differential Protection system cabinet includes silicon controlled rectifier module, overvoltage protection mould
Group, resistance-capacitance absorption module, control module and water cooling system；The water cooling system is arranged in the top of cabinet, institute
It states control module to be arranged inside cabinet, the silicon controlled rectifier module, overvoltage protection module, the setting of resistance-capacitance absorption module are being controlled
The top of molding group, the silicon controlled rectifier module, overvoltage protection module, resistance-capacitance absorption module, control module and wind-cooling heat dissipating
System is fixedly mounted on cabinet corresponding position by connection types such as bolt, guide rails.Program Exciting Windings for Transverse Differential Protection system uses three-phase 6
Pulse topology theory, setting quick fuse circuit, overvoltage protection module, resistance-capacitance absorption module, control module, water cooling system
Increase molten defencive function soon, the peak voltage of quick absorption system exchange reduces di/dt, effectively inhibits the wink of switching overvoltage
Between vibrate and high-frequency current, avoid overcurrent and damage thyristor, improve thyristor service life, it is reliable to greatly improve system
Property.
As an improvement of the present invention, the silicon controlled rectifier module includes module air duct frame, six controllable silicon wafers
Brake tube, six radiator for thyristors, fastp-acting fuse, current sensor and connecting copper bar；Module air duct frame, using exhausted
Edge material, global design cooperatively form a complete heat dissipation circulation loop at three road heat dissipation wind channels, with cabinet air duct；Described 1
Branch silicon controlled crystal brake pipe and 1 radiator for thyristors fit together to form a module, and six modules are along module air duct frame
Frame slideway is installed；The fastp-acting fuse is mounted on front side of silicon controlled rectifier module；The radiator for thyristors lower part module wind
Increase RC resistance-capacitance absorptions circuit in road frame air duct；The silicon controlled crystal brake pipe, radiator for thyristors, fastp-acting fuse, electric current
Sensor is connected with each other by connecting copper bar, whole to assemble module at a silicon controlled rectifier with Duct design, is mounted on cabinet
Top.
As an improvement of the present invention, the silicon controlled rectifier module uses 6 pulse topological structure of three-phase, the overvoltage
Protection module form overvoltage crowbar by varistor, fastp-acting fuse, and modularity, which designs, facilitates installation maintenance, is connected to and is
System exchange side, the peak voltage of quick absorption system exchange, reduces di/dt, and protection is silicon-controlled；The resistance-capacitance absorption module 103
RC absorption circuits are formed by Absorption Capacitance, absorption resistance, silicon controlled rectifier module, modularity design facilitates installation maintenance, can have
Effect inhibits moment oscillation and the high-frequency current of switching overvoltage, avoids overcurrent and damages thyristor, improves thyristor and use the longevity
Life.The control module is made of optical fiber control panel, relay, Switching Power Supply, insulating monitor, all electronic component assemblings
On a mounting plate, a control module is formed, by optical fiber control panel and relay control, transmission, transmitted by optical fiber,
Receive signal to full digital modulation system cabinet, to control, trigger silicon controlled rectifier module system component, the system of greatly improving can
By property.The water cooling system is made of high-power heat-dissipation wind turbine, detection of negative pressure sensor, cabinet fan shroud, air duct；Institute
The wind turbine that cooling fan chooses big heat radiation power is stated, is mounted in cabinet fan shroud, Exciting Windings for Transverse Differential Protection system cabinet is provided and is completely born
Pressure heat dissipation cycle；The detection of negative pressure Sensor Design is mounted in air duct, and detection blower fan is whether normal operation；It is described air-cooled scattered
Hot systems provide a more stable working environment for whole system operation.
When three level high-voltage high-power water-cooling frequency convertor system needs extended power, doube bridge arm power cell mould can be used
Organize internal left and right bridge arm in parallel, doube bridge arm power cell modules in parallel or the frequency-charger cabinet mode based on doube bridge arm power cell
One or more combinations.
Compared with the existing technology, the invention has the advantages that,
1）Three level can expand the frequency-charger cabinet of bridge arm parallel high voltage high-power water-cooling frequency converter in 1/2 volume of existing structure
On the basis of be used as common frequency converter in use, set of excitation winding cabinet, a set of digital regulator cubicle, be based on doube bridge arm power list
Member frequency-charger cabinet, a set of water cycle cooling system cabinet, realize complete rectification, inversion function 1.5 times of frequency converter output work
Rate is promoted.It is more reasonable, compact using upper design in spatial volume, it can effectively realize Fast Installation maintenance, Modularized pipe
Reason.
2）Frequency converter since it is desired that extension bigger complete machine power output use bridge arm parallel way when, same structure
Product complete machine may be implemented to have the function of that the output power of 2-3 times of complete frequency converter is promoted；Solve more frequency converter parallel connections because
The dispersibility of internal component parameter, and formed and endanger prodigious circulation, simultaneously effective inhibit bus overvoltage, is greatly promoted
The safety of system；
3）Exciting Windings for Transverse Differential Protection cabinet uses 6 pulse silicon controlled rectifier modular structure of three-phase, completes to synchronous machine motor rotor volume
The regulatory function of exciting current, complete machine have fast molten, temperature, over-voltage protecting function, quickly survey primary voltage and transformation to exchange
Device secondary side voltage is matched, and has complete RC absorption functions simultaneously for silicon-controlled.Greatly improve the reliable of system
Property；
4）Digital regulator cubicle uses the vector controller of DSP+FPGA structures, using 32-bit number model processor as core
The heart；Realize the work(such as velocity close-loop control, unity power factor control, variable frequency vector control, closed-loop current control, fault diagnosis
Energy；
5）Entire scheme is more reasonable, compact using upper design in spatial volume, can effectively realize that Fast Installation is tieed up
Shield, modularization management, greatly reduce material, maintenance, production cost.
Description of the drawings
Fig. 1, which is three level of the present invention, can expand bridge arm parallel high voltage high-power water-cooling frequency changer schematic diagram.
Fig. 2 is the Exciting Windings for Transverse Differential Protection cabinet schematic diagram of the present invention.
Fig. 3 is the bridge arm parallel connection frequency conversion device cabinet schematic diagram of the present invention.
Fig. 4 is the doube bridge arm power cell module cabinet schematic diagram of the present invention.
Fig. 5 is power cell modular structure schematic diagram；
In figure：1, Exciting Windings for Transverse Differential Protection cabinet, 2, digital regulator cubicle, 3, bridge arm parallel connection frequency conversion device cabinet, 4 water cycle cooling systems
Cabinet, 101, silicon controlled rectifier module, 102, overvoltage protection module, 103, resistance-capacitance absorption module, 104, directly control module, 105, wind
Cold cooling system, 106, Exciting Windings for Transverse Differential Protection cabinet cabinet, 301, power cell module, 302, electric discharge module, 303, sensor module,
304, spare expansion Support Capacitor module, 305, bridge arm parallel connection frequency conversion device cabinet cabinet, 1011, module air duct frame, 1012, controllable
Silicon wafer brake tube, 1013, radiator for thyristors, 1014, fastp-acting fuse, 1015, current sensor, 1016, connecting copper bar；
3011, radiating water cooling board, 3012, large power all-controlled type power device, 3013, single bridge arm exchange laminated bus, 3014, direct current branch
Support laminated bus, 3015, DC support capacitance, 3016, monitoring module, 3017, flow-disturbing wind turbine, 3018, unit housings component.
Specific implementation mode：
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 1, a kind of three level high-voltage high-power water-cooling frequency convertor system, including：Digital regulator cubicle
2, the frequency-charger cabinet 3 based on doube bridge arm power cell and water cycle cooling system cabinet 4；The digital regulator cubicle 2, based on double
Frequency-charger cabinet 3, the water cycle cooling system cabinet 4 of bridge arm power cell mutually assemble from left to right and the height of cabinet formation complete set
High-power water-cooling frequency convertor system, a whole set of frequency convertor system is pressed to use doube bridge arm parallel-connection structure, whole structural scheme can be more
The application scenario of a variety of output power demands is flexibly adapted to, according to actual needs, Exciting Windings for Transverse Differential Protection cabinet 1 can also be increased, it is described
Exciting Windings for Transverse Differential Protection cabinet 1 is arranged in the side of digital regulator cubicle 2.It is more reasonable, compact using upper design in spatial volume, it realizes fast
Fast installation maintenance, modularization management, unilateral bridge arm layout can effectively reduce system circulation, it is suppressed that bus overvoltage etc. is asked
Topic.
Embodiment 2：Referring to Fig. 1, as an improvement of the present invention, the digital regulator cubicle 2 is controlled comprising core
Module, auxiliary power supply system, interactive system and cabinet, the core control module use the vector of DSP+FPGA structures
Controller, using 32-bit number model processor as core；Realize velocity close-loop control, unity power factor control, variable frequency vector
The functions such as control, closed-loop current control, fault diagnosis.Mounted on digital adjusting cabinet front；The auxiliary power supply system is used
In providing stable operation power supply for whole system auxiliary control, it is mounted on cabinet rear portion；The interactive system is using tactile
Screen human-computer dialogue operation interface is touched, cabinet front medial location is mounted on.
Embodiment 3：Referring to Fig. 1, Fig. 3, the frequency-charger cabinet 3 based on doube bridge arm power cell include cabinet 305 with
And three groups of doube bridge arm power cell modules 301 in cabinet, electric discharge module 302, sensor module 303, spare expansion
Support Capacitor module 304, the doube bridge arm power cell module 301 are mounted on cabinet front；The electric discharge module 302 passes through spiral shell
Bolt is fixed on cabinet upper left-hand, and the sensor module 303 is bolted on cabinet upper right, the spare expansion
Support Capacitor module 204 is arranged above doube bridge arm power cell module 301.Frequency converter based on doube bridge arm power cell uses
AFE Active Front End technologies, advanced back-to-back three-level AC directly hand over conversion system, ensure the realization that converter power supply side is stablized
Four quadrant running.Wherein power cell module uses doube bridge arm mode, and cooled plate both sides in power cell module are individually set per side
One bridge arm of three-level converter is counted, rectification, the inversion function of single bridge arm is realized respectively, is used as common frequency-charger cabinet, three
Set power cell module realize one have complete rectification, inversion function frequency-charger cabinet.It needs to extend power converter output
When, left and right sides bridge arm can carry out bridge arm parallel connection, rectification or inversion function be implemented separately, the structure after optimization can be effectively
Inhibit bus overvoltage, frequency converter parallel connection circulation problem, high overall performance.
Referring to Fig. 4, the doube bridge arm power cell module 301 includes radiating water cooling board 3011, large power all-controlled type power
Device 3012, single bridge arm exchange laminated bus 3013, DC support laminated bus 3014, DC support capacitance 3015, intelligence prison
Module 3016, flow-disturbing wind turbine 3017, unit housings component 3018 are controlled, the radiating water cooling board 3011 is interior in the two-sided peace of the prior art
On the basis of dress, using three novel runner parallel ways, confession is greatly reduced on the basis of ensureing cooled plate radiating efficiency
Water flow, stream damage；Serration formula structure is used in runner, so that coolant liquid is formed wave flowing, is further increased heat dissipation effect, have
Effect reduces water circulation system installed capacity, saves complete machine cost.The radiating water cooling board both sides are evenly distributed with the work(of a bridge arm per side
Rate device 3012 installs a single bridge arm and exchanges laminated bus, individually designed at a three-level converter bridge arm；The direct current
It supports laminated bus 3014 to be mounted on two 3013 tops of single bridge arm exchange laminated bus, it is female to connect two single bridge arm exchange laminations
3013 DC side of line, DC support capacitance 3015 are mounted on DC support laminated bus 3014.The doube bridge arm power cell
Module 301 uses three level major loop topological structures, generates 5 rank output line voltages, and current distortion rate is low, and electromagnetic noise is small, moves
Static properties is excellent, and switching frequency is low, and loss is small, efficient, realizes active four quadrant running truly.In doube bridge
Arm power cell module internal cooled plate both sides, a three-level converter bridge arm is separately provided per side, realizes single bridge arm respectively
Rectification, inversion function, three sets of doube bridge arm power cell modules are mounted on cabinet front；It needs to extend power converter output
When, described doube bridge arm power cell module or so carries out bridge arm parallel connection, and single power cell module realizes a rectification or inverse
Become function.Referring to Fig. 2, in the radiating water cooling board 3011 on the basis of the prior art two-sided installation, using three novel streams
Water supply flow, stream damage is greatly reduced in road parallel way on the basis of ensureing cooled plate radiating efficiency；Serration is used in runner
Formula structure makes coolant liquid form wave flowing, further increases heat dissipation effect, effectively reduce water circulation system installed capacity,
Save complete machine cost.
Embodiment 4：Referring to Fig. 1, as an improvement of the present invention, water circulation cooling system 4 includes that water-wind-heat exchanges
Device, major cycle water pump, swelling gasbag, deionization system and monitor control system, the major cycle water pump, ion system, moisturizing
Pump is fixedly mounted on core framework lower part, swelling gasbag, monitoring and controlling system by system pipeline using bolt, flange connection
System is connected by screw bolts mode and is fixedly mounted on core framework top, and water-wind-heat exchanger is gone to be fixed on outdoor carry out heat exchange.
Embodiment 5 is referring to Fig. 1, Fig. 2, and as an improvement of the present invention, the Exciting Windings for Transverse Differential Protection system cabinet 1 includes silicon-controlled
Rectification module 101, overvoltage protection module 102, resistance-capacitance absorption module 103, control module 104 and water cooling system 105；Institute
It states water cooling system 105 to be arranged in the top of cabinet 106, the control module 104 is arranged inside cabinet, described silicon-controlled
Rectification module 101, overvoltage protection module 102, resistance-capacitance absorption module 103 be arranged control module 104 top, it is described silicon-controlled
Rectification module 101, overvoltage protection module 102, resistance-capacitance absorption module 103, control module 104 and water cooling system 105 pass through
The connection types such as bolt, guide rail are fixedly mounted on cabinet corresponding position.Program Exciting Windings for Transverse Differential Protection system is using three-phase 6 pulse topology
Principle, setting quick fuse circuit, overvoltage protection module, resistance-capacitance absorption module, control module, water cooling system increase fast melt
Defencive function, the peak voltage of quick absorption system exchange reduce di/dt, effectively inhibit switching overvoltage moment oscillation and
High-frequency current avoids overcurrent and damages thyristor, improves thyristor service life, greatly improves system reliability.It is described can
It controls silicon rectifier module 101 and uses 6 pulse topological structure of three-phase, the overvoltage protection module 102 is by varistor, fastp-acting fuse
Overvoltage crowbar is formed, modularity design facilitates installation maintenance, is connected to system exchange side, the point of quick absorption system exchange
Peak voltage, reduces di/dt, and protection is silicon-controlled；The resistance-capacitance absorption module 103 is by Absorption Capacitance, absorption resistance, silicon controlled rectifier
Module forms RC absorption circuits, and modularity design facilitates installation maintenance, can effectively inhibit moment oscillation and the height of switching overvoltage
Frequency electric current avoids overcurrent and damages thyristor, improves thyristor service life.The control module 104 by optical fiber control panel,
Relay, Switching Power Supply, insulating monitor composition, all electronic components are assembled on a mounting plate, form a control
Module by optical fiber transmission, receives signal to full digital modulation system cabinet by optical fiber control panel and relay control, transmission,
To control, trigger silicon controlled rectifier module system component, system reliability is greatly improved.The water cooling system 105
It is made of high-power heat-dissipation wind turbine, detection of negative pressure sensor, cabinet fan shroud, air duct；The cooling fan chooses big heat dissipation work(
The wind turbine of rate is mounted in cabinet fan shroud, provides Exciting Windings for Transverse Differential Protection system cabinet complete negative pressure heat dissipation cycle；The detection of negative pressure
Sensor Design is mounted in air duct, and detection blower fan is whether normal operation；The water cooling system 105 runs for whole system
One more stable working environment is provided.
Embodiment 6 is referring to Fig. 1, Fig. 5, and as an improvement of the present invention, the silicon controlled rectifier module 101 includes module
The silicon controlled crystal brake pipe 1012, six of air duct frame 1011, six radiator for thyristors 1013, fastp-acting fuse 1014, electric current pass
Sensor 1015 and connecting copper bar 1016；Module air duct frame 1011, using insulating materials, global design is at three road radiation airs
Road cooperatively forms a complete heat dissipation circulation loop with cabinet air duct；1 silicon controlled crystal brake pipe 1012 and 1 are controllable
Silicon radiator 1013 fits together to form a module, and six modules are installed along 1011 slideway of module air duct frame；It is described
Fastp-acting fuse 1014 is mounted on 101 front side of silicon controlled rectifier module；1013 lower part module air duct frame of the radiator for thyristors
Increase RC resistance-capacitance absorptions circuit in 1011 air duct of frame；The silicon controlled crystal brake pipe 1012, radiator for thyristors 1013, quick fuse
Device 1014, current sensor 1015 are connected with each other by connecting copper bar 1016, and whole and Duct design is at a silicon controlled rectifier
Module is assembled, cabinet top is mounted on.
When three level high-voltage high-power water-cooling frequency convertor system needs extended power, doube bridge arm power cell mould can be used
The internal left and right bridge arm parallel connection of group, doube bridge arm power cell modules in parallel or the frequency-charger cabinet parallel connection etc. based on doube bridge arm power cell
One or more combinations of formula.
It is whole to tie from the above mentioned as it can be seen that three level high-voltage high-power water-cooling frequency convertor system uses doube bridge arm parallel-connection structure
Structure scheme can the more flexible application scenario for adapting to a variety of output power demands, utilize upper design more adduction in spatial volume
It manages, is compact, realizing that Fast Installation maintenance, modularization management, unilateral bridge arm layout can effectively reduce system circulation, it is suppressed that
The problems such as bus overvoltage.In parallel, the doube bridge arm power cell modules in parallel by doube bridge arm power cell module internal or so bridge arm
Or different modes, the quantity such as frequency-charger cabinet parallel connection based on doube bridge arm power cell are combined, flexible and diverse realizes frequency conversion
The expansion of a variety of output powers of device adapts to the application scenario of different output power demand.No matter in space occupancy, cost pair
Great performance advantage is all occupied than, stable and reliable for performance, output power dilatation etc., further improves output of products
The application range of power expands product applications.
At least one of embodiment 2,3,4,5,6 technical characteristics can also be combined shape by the present invention with embodiment 1
The embodiment of Cheng Xin.
It should be noted that above-described embodiment, protection domain not for the purpose of limiting the invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (10)
1. a kind of three level high-voltage high-power water-cooling frequency convertor system, which is characterized in that including：Digital regulator cubicle, based on double
Frequency-charger cabinet, the water cycle cooling system cabinet of bridge arm power cell；The digital regulator cubicle, based on doube bridge arm power cell
Mutually assembling and the high-power water cooling frequency conversion of cabinet formation complete set from left to right of frequency-charger cabinet, water cycle cooling system cabinet
Device system.
2. three level high-voltage high-power water-cooling frequency convertor system according to claim 1, which is characterized in that described is total
Regulation cabinet includes core control module, auxiliary power supply system, interactive system and cabinet, and the core control module is adopted
With the vector controller of DSP+FPGA structures, using 32-bit number model processor as core；Before digital adjusting cabinet
Portion；The auxiliary power supply system is used to provide stable operation power supply for whole system auxiliary control, is mounted on cabinet rear portion；Institute
It states interactive system and uses touch screen human-computer dialogue operation interface, be mounted on cabinet front medial location.
3. three level high-voltage high-power water-cooling frequency convertor system according to claim 1, which is characterized in that it is described based on
The frequency-charger cabinet of doube bridge arm power cell includes cabinet and three groups of doube bridge arm power cell modules in cabinet, electric discharge
Module, sensor module, spare expansion Support Capacitor module, the doube bridge arm power cell module are mounted on cabinet front；Institute
It states electric discharge module and is bolted on cabinet upper left-hand, the sensor module is bolted on the cabinet top right side
Side, the spare expansion Support Capacitor module are arranged above doube bridge arm power cell module.
4. three level high-voltage high-power water-cooling frequency convertor system according to claim 3, the doube bridge arm power cell mould
Group exchanges lamination comprising unit housings component and setting radiating water cooling board, power device, two single bridge arms inside housings
Busbar, DC support laminated bus and DC support capacitance；The radiating water cooling board both sides are evenly distributed with the power of a bridge arm per side
Device installs a single bridge arm and exchanges laminated bus, individually designed at a three-level converter bridge arm；The DC support is folded
Layer busbar is mounted on two single bridge arm exchange laminated bus tops, connects two single bridge arms and exchanges laminated bus DC side, direct current
Support Capacitor 5 is mounted on DC support laminated bus.
5. three level high-voltage high-power water-cooling frequency convertor system according to claim 1, it is characterised in that：The water cycle
Cooling system cabinet includes water-wind-heat exchanger, major cycle water pump, swelling gasbag, deionization system and monitor control system, described
Major cycle water pump, ion system, small pump are fixedly mounted on core framework by system pipeline using bolt, flange connection
Lower part, swelling gasbag, monitor control system are connected by screw bolts mode and are fixedly mounted on core framework top, and water-wind-heat exchanges
Device is fixed on outdoor carry out heat exchange.
6. three level high-voltage high-power water-cooling frequency convertor system according to claim 1, which is characterized in that further include excitation
Winding cabinet, the Exciting Windings for Transverse Differential Protection cabinet are arranged in the other side of digital regulator cubicle.
7. three level high-voltage high-power water-cooling frequency convertor system according to claim 6, which is characterized in that the excitation around
Group system cabinet includes silicon controlled rectifier module, overvoltage protection module, resistance-capacitance absorption module, control module and wind-cooling heat dissipating system
System；The water cooling system is arranged in the top of cabinet, and the control module is arranged inside cabinet, the silicon controlled rectifier
Module, overvoltage protection module, resistance-capacitance absorption module are arranged in the top of control module.
8. three level high-voltage high-power water-cooling frequency convertor system according to claim 7, which is characterized in that described silicon-controlled
Rectification module includes module air duct frame, six silicon controlled crystal brake pipes, six radiator for thyristors, fastp-acting fuse, electric current biography
Sensor and connecting copper bar；Module air duct frame, using insulating materials, global design is at three road heat dissipation wind channels, with cabinet wind
Road cooperatively forms a complete heat dissipation circulation loop；1 silicon controlled crystal brake pipe and 1 radiator for thyristors are assembled in one
It rises and forms a module, six modules are installed along module air duct frame runner；The fastp-acting fuse is mounted on silicon-controlled whole
It flows on front side of module；Increase RC resistance-capacitance absorptions circuit in the frame air duct of the radiator for thyristors lower part module air duct；It is described controllable
Silicon wafer brake tube, radiator for thyristors, fastp-acting fuse, current sensor are connected with each other by connecting copper bar, whole to be set with air duct
A silicon controlled rectifier assembly module is counted into, cabinet top is mounted on.
9. three level high-voltage high-power water-cooling frequency convertor system according to claim 7, which is characterized in that described silicon-controlled
Rectification module uses 6 pulse topological structure of three-phase, the overvoltage protection module to form overvoltage guarantor by varistor, fastp-acting fuse
Protection circuit, modularity design facilitate installation maintenance, are connected to system exchange side, the control module is by optical fiber control panel, relay
Device, Switching Power Supply, insulating monitor composition, all electronic components are assembled on a mounting plate, form a control module,
The water cooling system is made of high-power heat-dissipation wind turbine, detection of negative pressure sensor, cabinet fan shroud, air duct；It is described to dissipate
Air-heater chooses the wind turbine of big heat radiation power, is mounted in cabinet fan shroud, provides the complete negative pressure of Exciting Windings for Transverse Differential Protection system cabinet and dissipates
Thermal cycle；The detection of negative pressure Sensor Design is mounted in air duct, and detection blower fan is whether normal operation；The wind-cooling heat dissipating system
System provides a more stable working environment for whole system operation.
10. three level high-voltage high-power water-cooling frequency convertor system according to claim 9, which is characterized in that three electricity
Flat high-power water-cooling frequency converter system in parallel, doube bridge arm power list using doube bridge arm power cell module internal or so bridge arm
One or more combinations of first modules in parallel or frequency-charger cabinet mode based on doube bridge arm power cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721913031.1U CN207994900U (en) | 2017-12-30 | 2017-12-30 | Three level high-voltage high-power water-cooling frequency convertor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721913031.1U CN207994900U (en) | 2017-12-30 | 2017-12-30 | Three level high-voltage high-power water-cooling frequency convertor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207994900U true CN207994900U (en) | 2018-10-19 |
Family
ID=63819639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721913031.1U Active CN207994900U (en) | 2017-12-30 | 2017-12-30 | Three level high-voltage high-power water-cooling frequency convertor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207994900U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911009A (en) * | 2017-12-30 | 2018-04-13 | 徐州中矿大传动与自动化有限公司 | Three level high-voltage high-power water-cooling frequency convertor system |
| CN112152424A (en) * | 2020-08-10 | 2020-12-29 | 常州博瑞电力自动化设备有限公司 | Compact air-cooled static frequency converter power cabinet |
| CN112311298A (en) * | 2020-10-14 | 2021-02-02 | 青岛中加特电气股份有限公司 | Frequency conversion cabinet |
-
2017
- 2017-12-30 CN CN201721913031.1U patent/CN207994900U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911009A (en) * | 2017-12-30 | 2018-04-13 | 徐州中矿大传动与自动化有限公司 | Three level high-voltage high-power water-cooling frequency convertor system |
| CN107911009B (en) * | 2017-12-30 | 2024-08-20 | 江苏国传电气有限公司 | Three-level high-voltage high-power water-cooling frequency converter system |
| CN112152424A (en) * | 2020-08-10 | 2020-12-29 | 常州博瑞电力自动化设备有限公司 | Compact air-cooled static frequency converter power cabinet |
| CN112152424B (en) * | 2020-08-10 | 2022-02-08 | 常州博瑞电力自动化设备有限公司 | Compact air-cooled static frequency converter power cabinet |
| CN112311298A (en) * | 2020-10-14 | 2021-02-02 | 青岛中加特电气股份有限公司 | Frequency conversion cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107911009A (en) | Three level high-voltage high-power water-cooling frequency convertor system | |
| US9019731B2 (en) | High-power medium-voltage drive power cell having power elements disposed on both sides of base plate | |
| US9373995B2 (en) | Basic function unit of voltage-source converter based on full-controlled devices | |
| CN207994900U (en) | Three level high-voltage high-power water-cooling frequency convertor system | |
| CN201805346U (en) | General current conversion module | |
| CN202856629U (en) | Locomotive converter | |
| CN201418024Y (en) | Half-bridge power module and back to back type current transformer constituted by the half-bridge power module | |
| CN214544127U (en) | High-power frequency converter power cabinet with series voltage structure | |
| CN104201866B (en) | Insulated gate bipolar transistor three-level power cabinet | |
| CN201690342U (en) | Inverter air-cooled heat dissipation system structure | |
| CN104795968A (en) | Frequency changer | |
| CN104868702A (en) | Converter power cabinet | |
| CN202085082U (en) | Traction converter | |
| CN112953249A (en) | Current transformer | |
| CN210608893U (en) | Power module, converter power module and wind power generation system | |
| CN202931226U (en) | IGBT current transformer module | |
| CN114980673A (en) | High power-to-weight ratio motor controller structure for aviation | |
| CN205105111U (en) | Water -cooling variable frequency speed governing(VFSG) controlgear | |
| CN207098929U (en) | Train power supply power model on the basis of water cooling substrate | |
| CN208078908U (en) | A kind of locomotive unsteady flow power cell | |
| CN110266050B (en) | Potential energy recovery power generation air conditioning unit | |
| CN106411143A (en) | Mine explosionproof high-voltage combined frequency converter core and frequency converter | |
| CN110460065A (en) | Flameproof and intrinsically safe static reactive generator device and the implementation method of reactive compensation | |
| CN206041816U (en) | Mining flame proof high pressure combination converter core and converter | |
| CN107911033B (en) | Design method for optimizing total stray inductance of main circuit and locomotive variable-current power unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 221116 No. second Zhujianglu Road Industrial Park, Xuzhou high tech Zone, Jiangsu 7 Patentee after: CHINA MINING DRIVES & AUTOMATION Co.,Ltd. Address before: 221116 Kunlun road 9006-1, Copper Mt. Economic Development Zone, Xuzhou, Jiangsu Patentee before: CHINA MINING DRIVES & AUTOMATION Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221116 No. second Zhujianglu Road Industrial Park, Xuzhou high tech Zone, Jiangsu 7 Patentee after: Jiangsu Guochuan Electric Co.,Ltd. Address before: 221116 No. second Zhujianglu Road Industrial Park, Xuzhou high tech Zone, Jiangsu 7 Patentee before: CHINA MINING DRIVES & AUTOMATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |