CN209516989U - A kind of power electronic control system of double IGBT single inverters of parallel current-sharing - Google Patents
A kind of power electronic control system of double IGBT single inverters of parallel current-sharing Download PDFInfo
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- CN209516989U CN209516989U CN201822141982.2U CN201822141982U CN209516989U CN 209516989 U CN209516989 U CN 209516989U CN 201822141982 U CN201822141982 U CN 201822141982U CN 209516989 U CN209516989 U CN 209516989U
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Abstract
The utility model discloses a kind of power electronic control systems of double IGBT single inverters of parallel current-sharing, including three phase alternating current motor, upper cover plate, low pressure connector, integrated form pcb board, exchange composite copper bar, current sensor, first group of IGBT module, DC filter etc.；High pressure plug connector input direct-current electric current, DC current flows separately through BUSBAR interface, DC-LINK capacitive interface, the DC current of input is divided into two by DC-LINK capacitive interface, it is delivered to first group of IGBT module, second group of IGBT module and third group IGBT module respectively, DC-AC conversion is carried out through three groups of IGBT modules, three groups of IGBT modules are all set there are two output end, two output ends of every group of IGBT module carry out confluence parallel connection by monoblock type AC copper bar, form three-phase alternating current output channel and are connected to motor.The double IGBT parallel current-sharings of the utility model are efficient, and cooling effect is good, and integrated level is high, good EMC performance.
Description
Technical field
The utility model relates to double IGBT of alternating current generator Drive Control Technique field more particularly to a kind of parallel current-sharing are mono-
The power electronic control system of inverter.
Background technique
In the motor driven systems of driving motor, driving motor revolving speed is controlled using power electronic controller PEU
It adjusts, the DC high-voltage inversion of such as power battery input is simultaneously AC high voltage by PEU, the electric current as driving motor
Input.PEU major function includes following two o'clock:
First, as the energy transform device between power battery and driving motor, have the function of inversion namely DC-
AC conversion function, for example, the high voltage direct current that power battery inputs can be converted to three-phase high-voltage alternating current transmission to drive by it
Dynamic motor；
Second, as control signal interface circuit and driving motor control circuit, receive by entire car controller VCU
The signals such as signal and motor temperature, speed, power that (Vehicle Control Unit) is sent, make respective feedback, then
Signal is fed back into VCU and driving motor, to play driving motor control action.
Currently, power electronic controller use single conventional three-phase full-bridge inverting power module, for such as power compared with
For the driving motor of big electric car, it is easy to be limited by power device maximum allowed current.Big portion in existing market
Dividing PEU is single IGBT power module, and general peak power is no more than 160KW, and rated power is no more than 60KW.The peak PEU in the market
Value power is more than 250KW, rated power be more than the volume production PEU model of 100KW not yet.
Meanwhile the PEU in the market for double IGBT of electric car is seldom, with it is luxuriant come the 240KW that uses of automobile ES8 it is bis-
For inverter PEU product, which uses double IGBT modules, the mode of parallel type twin inverter.I.e. a PEU is produced
There are two IGBT power modules in product, and then form two sets of parallel inverter systems.The PEU is based on 400V voltage platform, peak
It is worth power and reaches 240KW, but rated power is 60KW.Double IGBT use back-to-back arrangement mode.There are six outputs for twin inverter
Terminal, i.e., each inverter export three-phase U, V, W, share two sets of U, V, W output system.Two inverters are mutually indepedent.It is luxuriant
It is back-to-back to carry out double IGBT, exports six roots of sensation copper bar interface, connects six-phase motor or double three-phase machine, is the twin inverter knot of double IGBT
Structure, IGBT do not do parallel current-sharing structure.
Inverter product is primarily present following deficiency currently on the market:
One, volume production inverter product voltage platform is based on 400V voltage platform in the market, without 800V voltage platform product.
In 400V voltage platform, PEU to export it is high-power, need IGBT export high current, IGBT calorific value is big, and switching loss height etc. is asked
Topic；
Two, 400V voltage platform will export relatively high power, and IGBT calorific value is big, require height to cooling system, corresponding thin
Membrane capacitance capacity is big, and volume is big, and fever is big.Copper bar sectional area, fever are very big.The thermal efficiency and volume of entire PEU system are close
It spends lower；
Three, parallel current-sharing structure is not done in the PEU of double IGBT, IGBT output in the market.I.e. there is no the list of double IGBT is inverse
Become device product.It is luxuriant come ES8 use the twin inverter product of double IGBT, the phase current of double IGBT outputs does not do stream and sets
Meter connects six-phase motor or special double threephase stator winding motors, incompatible with most three-phase motor in the market.It makes
That significant power demand PEU is few at one the reason of this phenomenon, one be double IGBT single inverter PEU product technology difficulty
It is higher；
Four, the EMC problem of big power controller, secondary filter structure.PEU EMC exists in various degree currently on the market
Some problems.The reason is that major part PEU does not design filter circuit or filter design is not in place.It is luxuriant come ES8 240KW
PEU EMC devises level-one L-C filter circuit, is unable to satisfy the higher and higher EMC demand of existing market；
Five, the generally existing volume of PEU product of double IGBT of 400V platform is big, the low problem of integrated level:
It on the one hand is the PEU product under same power since 400V platform voltage limits, 400V platform is flat compared to 800V
There is obvious disadvantage in platform, copper bar cross-sectional dimension, capacitor volume size etc.；
On the one hand because the twin inverter of double IGBT needs mating two sets of inverter modules, such as thin-film capacitor, filter structure is driven
Dynamic circuit board, current sensor etc. are required to two sets；Control panel and driving plate separate structure, driving plate and control circuit board are arranged
Line connection, or board connector is connected with plate, at high cost, integrated level is low；
Six, the PEU product of double IGBT in the market, due to not doing the current equalizing structure of IGBT parallel connection, water cooling design is general
For tandem water channel, IGBT cooler environment is different, and two IGBT temperature differences are big；
Seven, PEU product, control circuit board do not do cooling substantially currently on the market, can not integrated high-current control circuit, such as
Integrated BLDC(electronic parking, oil pump control), HCU, VCU, BMS module etc..
The following electric vehicle controller Products integration is trend, as electric machine controller integrates DCDC, VCU, BMS, BLDC
Equal products.After integrating these high-power controller products, the cooling requirement of circuit board is just very high.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of double IGBT single inverters of parallel current-sharing
Power electronic control system enhances IGBT module cooling effect after the power electronic control system, independent cooling each
IGBT module guarantees the cooling consistency of IGBT, realizes that IGBT module cools down simultaneously with DC-LINK capacitor, improve power electronics control
The radiating efficiency of system processed, circuit board electromagnetism strong antijamming capability, the Current for paralleled of double IGBT parallel connections, dynamic current equalizing effect, function
Rate output and current output capability are big, and structure integrated level is high, at low cost, small in size.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of power electronic control system of double IGBT single inverters of parallel current-sharing, power electronics control system are provided
System includes three phase alternating current motor, upper cover plate, low pressure connector, integrated form pcb board, exchange composite copper bar, current sensor, first
Group IGBT module, main box, high-voltage connector, DC B USBAR interface, DC filter, DC-LINK capacitor and lower cover plate, institute
Low pressure connector to be stated to be integrated on the integrated form pcb board, the high-voltage connector and the DC filter are fixed as one,
The compound bronze medal of exchange includes that Z-shaped U phase exports composite copper bar, Z-shaped V phase exports composite copper bar and exports complex copper with Z-shaped W phase
Row, the Z-shaped U phase of the compound bronze medal of exchange exports composite copper bar, Z-shaped V phase exports composite copper bar, Z-shaped W phase exports composite copper bar
All with the current sensor grafting, the upper cover plate, the lower cover plate cover upper top, the lower bottom part for closing main box respectively；
The high pressure plug connector input direct-current electric current, the DC current flow separately through the BUSBAR interface, the DC-
The DC current of input is divided into two by LINK capacitive interface, the DC-LINK capacitive interface, is delivered to first group of IGBT respectively
Two IGBT devices of module carry out DC-AC conversion, first group of IGBT module through first group of IGBT module
If there are two output end, two output ends of first group of IGBT module are converged by monoblock type U phase AC copper bar
Parallel connection, the U phase AC bronze medal extend a Z-shaped U phase at confluence parallel connection and export composite copper bar, and the Z-shaped U phase exports compound
Copper bar is electrically connected with the U phase terminal of the three phase alternating current motor.
In order to solve its technical problem, used further technical solution is the utility model:
It further says, the electronic control system further includes second group of IGBT module and third group IGBT module, described
Second group of IGBT module, third group IGBT module are respectively equipped with two output ends, two outputs of second group of IGBT module
It holds, two output ends of the third group IGBT module pass through monoblock type V phase AC copper bar respectively, monoblock type W phase AC copper bar carries out
Confluence is in parallel, the V phase AC copper bar, W phase AC bronze medal respectively the one Z-shaped V phase of extension at the confluence parallel connection export it is compound
Copper bar, a Z-shaped U phase export composite copper bar, and the Z-shaped V phase exports composite copper bar, the Z-shaped U phase exports composite copper bar point
It is not electrically connected with the V phase terminal of the three phase alternating current motor, W phase terminal.
It further says, the U phase AC copper bar, V phase AC copper bar, W phase AC copper bar are all arranged in parallel；The Z-shaped U phase exports
Composite copper bar, Z-shaped V phase export composite copper bar, Z-shaped W phase exports composite copper bar and is all arranged in parallel；Three AC copper bars are two-by-two etc.
Spacing；Three output composite copper bars are equidistant two-by-two.
Further say, the main box include low-voltage signal interface, high-voltage signal interface, three phase alternating current motor interface,
Equilibrated valve, PEU grounding point and PEU installation point；
The low-voltage signal interface, for connecting external power supply management system, entire car controller, motor rotation change module and temperature
Spend sensing module；
The high-voltage signal interface, for connecting external cell junction box, for the power input for inputting external dc high pressure
Port；
The three phase alternating current motor interface, for connecting U, V, W three-phase terminal of three phase alternating current motor；
The equilibrated valve, for adjusting pressure in main box；
The PEU grounding point is used for ground protection；
The PEU installation point, for the main box to be fixed on external power drive system.
It further says, the main box further includes water-cooling base plate and water-cooling cover plate, and the water-cooling base plate has one to accommodate
The accommodating chamber of water-cooling cover plate, the bottom of the accommodating chamber have water buffering convex block and a parallel cooling water channel, the water buffering
Convex block is located at the middle position of the parallel cooling water channel, and one end of the parallel cooling water channel is cooling water intake, described
The other end of parallel cooling water channel is cooling water outlet, and there are two IGBT modules described in three groups of receiving for the water-cooling cover plate tool
Holding tank is equipped with sealing ring between IGBT module described in the holding tank and every group.
Further to say, the DC filter is fixed as one with the high-voltage connector by two DC master rows,
Two DC master rows lie across the DC filter, and the DC filter includes level-one filter module and secondary filter mould
Block, the level-one filter module are equipped with first pair of Y capacitance, the first X capacitor and the first magnetic core, and the secondary filter module is equipped with the
Two pairs of Y capacitances, the 2nd X capacitor and the second magnetic core, first pair of Y capacitance, second pair of Y capacitance are all set to two direct currents
The two sides of busbar, the first X capacitor, the 2nd X capacitor are all set between two DC master rows, two direct current mothers
Row sequentially passes through first magnetic core, the second magnetic core, and two DC master rows are equipped with far from one end of the high-voltage connector
Two bus capacitor interfaces.
It further says, the heat-conducting silicone grease of strip projected parts is equipped in the main box, and the integrated form circuit board passes through institute
The heat-conducting silicone grease for stating strip projected parts is bonded with the main box, and the integrated form circuit board includes control circuit module and driving electricity
Road module, is equipped with convex ribs between the control circuit module and the drive circuit module, the convex ribs are fixedly installed on described
The inner surface of upper cover plate.
It further says, the water-cooling base plate is equipped with water channel expansion area, the water channel expansion area, the convex ribs, the master
The upper cover plate composition closed cavity area of the outer wall of cabinet, the main box, the control circuit module are arranged in the closing chamber
In body area.
It further says, 1 control circuit module and 2 drive circuit modules is set on the integrated form circuit board.
It further says, IGBT module described in every group is all arranged side by side, the DC input terminal of IGBT module described in every group
It is set to both sides in the outer part, the AC output terminal side-by-side alignment setting of IGBT module described in every group.
It further says, insulating heat-conductive pad, the DC- is equipped between the water-cooling base plate and the DC-LINK capacitor
LINK capacitor is integral type capacitor and is arranged between the IGBT module and the water-cooling cover plate.
It further says, the electronic control system of the utility model is for the passenger car based on 800V voltage platform
Inverter.
The beneficial effects of the utility model are:
One, the main box of the utility model is equipped with water-cooling base plate and water-cooling cover plate, and water-cooling base plate has one to accommodate water cooling lid
The accommodating chamber of plate, the bottom of accommodating chamber have water buffering convex block and a parallel cooling water channel, and water buffers convex block positioned at parallel cold
But the middle position of water channel, one end of parallel cooling water channel are cooling water intake, and the other end of parallel cooling water channel is cooling
Water water outlet, there are two holding tanks for water-cooling cover plate tool, accommodate three groups of IGBT modules, and water-cooling base plate is additionally provided with water channel expansion area, controls
Circuit module processed is arranged on water channel expansion area, and integral type capacitor DC-LINK is arranged between IGBT module and water-cooling cover plate, cold
But water carries out circulating cooling to IGBT module and control circuit module, enhances IGBT mould in parallel cooling water channel internal circulation flow
Block cooling effect, independent cooling each IGBT module guarantee the cooling consistency of IGBT, realize IGBT module and DC-LINK capacitor
It is cooling simultaneously, improve the radiating efficiency of power electronic control system；
Two, the main box of the utility model is equipped with the heat-conducting silicone grease of strip projected parts, and integrated form circuit board passes through thermal conductive silicon
Rouge is bonded with main box, and integrated form circuit board includes control circuit module and drive circuit module, control circuit module and driving
Convex ribs are equipped between circuit module, convex ribs are fixedly installed on water-cooling base plate, and water-cooling base plate is equipped with water channel expansion area, water channel extension
Area, convex ribs, the outer wall of main box, main box upper cover plate constitute closed cavity area, control circuit module be arranged in closed cavity
In area, control circuit module and drive circuit module isolation are come, guarantee that control circuit board is interference-free, shielding construction is not required to
Individually designed barricade part substantially reduces design cost, and DC filter has two stage filter module, in direct-flow input end pair
Equipment carries out electromagnetic interference processing, greatly improves circuit board electromagnetism anti-interference ability；
Three, the utility model uses integrated form circuit board, by the control circuit module and drive circuit module of IGBT module
It is integrated on same circuit board, and is connected using integrated form DC-LINK capacitor with IGBT, greatly simplify circuit structure, together
The parts such as Shi Youhua winding displacement and wiring and splicing part, structure integrated level improve, and reduce cost, reduce volume；
Four, the IGBT module of the utility model is designed using the structure of phase current parallel current-sharing, and two IGBT modules are symmetrical
Be arranged side by side, the DC input terminal of two IGBT both sides in the outer part connect bus capacitor, and AC output terminal is head to head right
Just.And bus capacitor structure is the scheme for cooperating double IGBT to be arranged side by side, the direct current of the single inverter of double IGBT parallel current-sharings
Stream is inputted by high-voltage connector, is connected through DC B USBAR interface with capacitive interface, by integrated capacitive by the electricity of input
A stream is two, is separately connected two IGBT modules being arranged side by side, and carries out DC-AC conversion through IGBT module, is exported in IGBT
End carries out confluence again and exports copper bar for three U, V, W three-phases, finally connects three-phase motor, and the utility model guarantees double from structure
The Current for paralleled of IGBT parallel connection, dynamic current equalizing effect, power output and current output capability are big.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is point of the power electronic control system of double IGBT single inverters of the parallel current-sharing of the utility model embodiment
Solve schematic diagram；
Fig. 2 is the single inverter export structure schematic diagram of double IGBT parallel current-sharings in the utility model embodiment；
Fig. 3 is one of the stereoscopic schematic diagram of main box in the utility model embodiment；
Fig. 4 is the two of the stereoscopic schematic diagram of the main box in the utility model embodiment；
Fig. 5 is the decomposition diagram of the main tank intracorporal IGBT module and cooling water channel in the utility model embodiment；
Fig. 6 is the structural schematic diagram of the DC filter in the utility model embodiment；
Fig. 7 is the structural schematic diagram of the integrated form circuit board in the utility model embodiment；
Fig. 8 is the structural schematic diagram in the closed cavity area in the utility model embodiment；
Fig. 9 is the structural representation of the main box, insulating heat-conductive pad and DC-LINK capacitor three in the utility model embodiment
Figure；
Each section label is as follows in attached drawing:
Upper cover plate 1, low pressure connector 2, integrated form pcb board 3, control circuit module 31, drive circuit module 32, convex ribs
33, exchange composite copper bar 4, Z-shaped U phase exports composite copper bar 41, Z-shaped V phase exports composite copper bar 42, Z-shaped W phase exports composite copper bar
43, U phase AC copper bar 44, V phase AC copper bar 45, W phase AC copper bar 46,5, first groups of IGBT modules 6 of current sensor, main box 7, low
Press signaling interface 71, high-voltage signal interface 72, three phase alternating current motor interface 73, equilibrated valve 74, PEU grounding point 75, PEU peace
Decorate heat-conducting silicone grease 773, the water-cooling cover plate of 76, water-cooling base plate 77, water channel expansion area 771, closed cavity area 772, strip projected parts
78, water buffering convex block 79, parallel cooling water channel 80, cooling water intake 801, cooling water outlet 802, high-voltage connector 8, straight
Flow filter 9, level-one filter module 91, first pairs of Y capacitances 911, the first X capacitor 912, first magnetic cores 913, secondary filter module
92,11, second groups of second pair of Y capacitance 921, the 2nd X capacitor 922, the second magnetic core 923, DC-LINK capacitor 10, lower cover plate IGBT
Module 12, third group IGBT module 13, insulating heat-conductive pad 14, DC master row 15 and bus capacitor interface 151.
Specific embodiment
Illustrate specific embodiment of the present utility model below by way of particular specific embodiment, those skilled in the art can
The advantages of the utility model is understood by content disclosed in the present specification easily and effect.The utility model can also it is other not
Same mode is practiced, that is, under the scope of revealed without departing substantially from the utility model, can give different modification and change.
Embodiment
A kind of power electronic control system of double IGBT single inverters of parallel current-sharing, as depicted in figs. 1 and 2, the electricity
Power electronic control system includes three phase alternating current motor, upper cover plate 1, low pressure connector 2, integrated form pcb board 3, exchange composite copper bar
4,5, first groups of IGBT modules 6 of current sensor, main box 7, high-voltage connector 8, DC B USBAR interface, DC filter 9,
DC-LINK capacitor 10 and lower cover plate 11, the low pressure connector are integrated on the integrated form pcb board, the high-voltage connector
It is fixed as one with the DC filter, the compound bronze medal of the exchange includes that export composite copper bar 41, Z-shaped V phase defeated for Z-shaped U phase
Composite copper bar 42 exports composite copper bar 43 with Z-shaped W phase out, and the Z-shaped U phase of the compound bronze medal of exchange exports composite copper bar, Z-shaped V
Mutually output composite copper bar, Z-shaped W phase export composite copper bar all with the current sensor grafting, the upper cover plate, the lower cover plate
Lid closes upper top, the lower bottom part of main box respectively；
The high pressure plug connector input direct-current electric current, the DC current flow separately through the BUSBAR interface, the DC-
The DC current of input is divided into two by LINK capacitive interface, the DC-LINK capacitive interface, is delivered to first group of IGBT respectively
Two IGBT devices of module carry out DC-AC conversion, first group of IGBT module through first group of IGBT module
If two output ends of first group of IGBT module are converged by monoblock type U phase AC copper bar 44 there are two output end
Stream is in parallel, and the U phase AC bronze medal extends a Z-shaped U phase at confluence parallel connection and exports composite copper bar, and the Z-shaped U phase exports multiple
Copper bar is closed to be electrically connected with the U phase terminal of the three phase alternating current motor.
The electronic control system further includes second group of IGBT module 12 and third group IGBT module 13, and described second group
IGBT module, third group IGBT module are respectively equipped with two output ends, two output ends of second group of IGBT module, described
Two output ends of third group IGBT module pass through monoblock type V phase AC copper bar 45 respectively, monoblock type W phase AC copper bar 46 converges
Parallel connection, the V phase AC copper bar, W phase AC bronze medal respectively at the confluence parallel connection extend a Z-shaped V phase export composite copper bar,
The one Z-shaped U phase exports composite copper bar, the Z-shaped V phase exports composite copper bar, the Z-shaped U phase export composite copper bar respectively with
The V phase terminal of the three phase alternating current motor, the electrical connection of W phase terminal.
The U phase AC copper bar, V phase AC copper bar, W phase AC copper bar are all arranged in parallel；The Z-shaped U phase exports composite copper bar, Z
Shape V phase exports composite copper bar, Z-shaped W phase exports composite copper bar and is all arranged in parallel；Three AC copper bars are equidistant two-by-two；Three
The output composite copper bar is equidistant two-by-two.
As shown in Figure 3 and Figure 4, the main box includes low-voltage signal interface 71, high-voltage signal interface 72, three-phase alternating current
Machine interface 73, equilibrated valve 74, PEU grounding point 75 and PEU installation point 76；
The low-voltage signal interface, for connecting external power supply management system, entire car controller, motor rotation change module and temperature
Spend sensing module；
The high-voltage signal interface, for connecting external cell junction box, for the power input for inputting external dc high pressure
Port；
The three phase alternating current motor interface, for connecting U, V, W three-phase terminal of three phase alternating current motor；
The equilibrated valve, for adjusting pressure in main box；
The PEU grounding point is used for ground protection；
The PEU installation point, for the main box to be fixed on external power drive system.
As shown in figure 5, the main box further includes water-cooling base plate 77 and water-cooling cover plate 78, the water-cooling base plate has one to hold
Receive the accommodating chamber of water-cooling cover plate, the bottom of the accommodating chamber has water buffering convex block 79 and a parallel cooling water channel 80, described
Water buffering convex block is located at the middle position of the parallel cooling water channel, and one end of the parallel cooling water channel is cooling water intake
801, the other end of the parallel cooling water channel is cooling water outlet 802, and there are two accommodate three groups of institutes for the water-cooling cover plate tool
It states the holding tank of IGBT module, is equipped with sealing ring between IGBT module described in the holding tank and every group.
As shown in fig. 6, the DC filter is fixed as one with the high-voltage connector by two DC master rows 15,
Two DC master rows lie across the DC filter, and the DC filter includes level-one filter module 91 and secondary filter
Module 92, the level-one filter module are equipped with first pair of Y capacitance 911, the first X capacitor 912 and the first magnetic core 913, the second level
Filter module is equipped with second pair of Y capacitance 921, the 2nd X capacitor 922 and the second magnetic core 923, first pair of Y capacitance, second couple of Y
Capacitor is all set to the two sides of two DC master rows, the first X capacitor, the 2nd X capacitor be all set to two it is described straight
It flows between busbar, two DC master rows sequentially pass through first magnetic core, the second magnetic core, and two DC master rows are separate
One end of the high-voltage connector is set there are two bus capacitor interface 151.
As shown in fig. 7, being equipped with the heat-conducting silicone grease 773 of strip projected parts in the main box, the integrated form circuit board passes through
The heat-conducting silicone grease of the strip projected parts is bonded with the main box, and the integrated form circuit board includes control circuit module 31 and drives
Dynamic circuit module 32, is equipped with convex ribs 33 between the control circuit module and the drive circuit module, the convex ribs fixation is set
It is placed in the inner surface of the upper cover plate.
It is the water channel expansion area, the convex ribs, described as shown in figure 8, the water-cooling base plate is equipped with water channel expansion area 771
The upper cover plate composition closed cavity area 772 of the outer wall of main box, the main box, the control circuit module are arranged in the envelope
In closed chamber body area.
1 control circuit module and 2 drive circuit modules are set on the integrated form circuit board.
IGBT module described in every group is all arranged side by side, and the DC input terminal of IGBT module described in every group is set in the outer part
Both sides, the AC output terminal side-by-side alignment setting of IGBT module described in every group.
As shown in figure 9, being equipped with insulating heat-conductive pad 14, the DC- between the water-cooling base plate and the DC-LINK capacitor
LINK capacitor is integral type capacitor and is arranged between the IGBT module and the water-cooling cover plate.
The IGBT module that the utility model uses is Infineon or the IGBT module of Mitsubishi pressure resistance 1200V, and this is practical
Novel electronic control system is for the passenger car inverter based on 800V voltage platform.
The course of work and working principle of the utility model are as follows:
The main box of the utility model is equipped with water-cooling base plate and water-cooling cover plate, and water-cooling base plate has one to accommodate water-cooling cover plate
Accommodating chamber, the bottom of accommodating chamber have water buffering convex block and a parallel cooling water channel, and water buffering convex block is located at parallel cooling water
The one end in the middle position in road, parallel cooling water channel is cooling water intake, and the other end of parallel cooling water channel goes out for cooling water
The mouth of a river, there are two holding tanks for water-cooling cover plate tool, accommodate three groups of IGBT modules, water-cooling base plate is additionally provided with water channel expansion area, control electricity
Road module is arranged on water channel expansion area, and integral type capacitor DC-LINK is arranged between IGBT module and water-cooling cover plate, cooling water
In parallel cooling water channel internal circulation flow, circulating cooling is carried out to IGBT module and control circuit module, enhancing IGBT module is cold
But effect, independent cooling each IGBT module guarantee the cooling consistency of IGBT, realize IGBT module and DC-LINK capacitor simultaneously
It is cooling；
The main box of the utility model is equipped with heat-conducting silicone grease, and integrated form circuit board is shown consideration for by heat-conducting silicone grease and main tank
It closes, integrated form circuit board includes control circuit module and drive circuit module, between control circuit module and drive circuit module
Equipped with convex ribs, convex ribs are fixedly installed on water-cooling base plate, and water-cooling base plate is equipped with water channel expansion area, water channel expansion area, convex ribs, main tank
The outer wall of body, the upper cover plate of main box constitute closed cavity area, and control circuit module is arranged in closed cavity area, by control electricity
Road module comes with drive circuit module isolation, guarantees that control circuit board is interference-free, shielding construction is not required to individually designed shielding
Plate part, DC filter have two stage filter module, carry out electromagnetic interference processing to equipment in direct-flow input end, greatly improve
Circuit board electromagnetism anti-interference ability；
The utility model uses integrated form circuit board, and the control circuit module of IGBT module and drive circuit module are integrated
It is connected on same circuit board, and using integrated form DC-LINK capacitor with IGBT, greatly simplifies circuit structure, while excellent
Change the parts such as winding displacement and wiring and splicing part, structure integrated level improves, and reduces volume；
The IGBT module of the utility model is designed using the structure of phase current parallel current-sharing, and two IGBT modules are symmetrically simultaneously
Arrangement is set, and the DC input terminal of two IGBT both sides in the outer part connect bus capacitor, and AC output terminal is head to head to just.And
Bus capacitor structure is the scheme for cooperating double IGBT to be arranged side by side, and the DC current of the single inverter of double IGBT parallel current-sharings is by height
Plug-in unit input is crimped, is connected through DC B USBAR interface with capacitive interface, it is by integrated capacitive that the electric current of input is a
Be two, be separately connected two IGBT modules being arranged side by side, through IGBT module carry out DC-AC conversion, IGBT output end again into
Row confluence exports copper bar for three U, V, W three-phases, finally connects three-phase motor, guarantees Current for paralleled, the dynamic of double IGBT parallel connections
Effect is flowed, power output and current output capability are big.
The above description is only the embodiments of the present invention, and not thereby the foregoing is merely the implementations of the utility model
Example, therefore it does not limit the scope of the patent of the utility model, made by using the description of the utility model and the drawings
Equivalent structure, be applied directly or indirectly in other relevant technical fields, similarly include the utility model patent protect
Protect range.
Claims (12)
1. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing, it is characterised in that: the power electronics
Control system includes three phase alternating current motor, upper cover plate (1), low pressure connector (2), integrated form pcb board (3), exchange composite copper bar
(4), current sensor (5), first group of IGBT module (6), main box (7), high-voltage connector (8), DC B USBAR interface, straight
Stream filter (9), DC-LINK capacitor (10) and lower cover plate (11), the low pressure connector are integrated in the integrated form pcb board
On, the high-voltage connector and the DC filter are fixed as one, and the compound bronze medal of exchange includes that Z-shaped U phase exports again
Close copper bar (41), Z-shaped V phase exports composite copper bar (42) and exports composite copper bar (43) with Z-shaped W phase, the Z of the compound bronze medal of exchange
Shape U phase exports composite copper bar, Z-shaped V phase exports composite copper bar, Z-shaped W phase exports composite copper bar and all inserts with the current sensor
It connects, the upper cover plate, the lower cover plate cover upper top, the lower bottom part for closing main box respectively；
The high pressure plug connector input direct-current electric current, the DC current flow separately through the BUSBAR interface, the DC-LINK
The DC current of input is divided into two by capacitive interface, the DC-LINK capacitive interface, is delivered to first group of IGBT module respectively
Two IGBT devices, carry out DC-AC conversion through first group of IGBT module, first group of IGBT module be equipped with
Two output ends of two output ends, first group of IGBT module are converged by monoblock type U phase AC copper bar (44)
Parallel connection, the U phase AC bronze medal extend a Z-shaped U phase at confluence parallel connection and export composite copper bar, and the Z-shaped U phase exports compound
Copper bar is electrically connected with the U phase terminal of the three phase alternating current motor.
2. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as described in claim 1, feature
Be: the electronic control system further includes second group of IGBT module (12) and third group IGBT module (13), and described second group
IGBT module, third group IGBT module are respectively equipped with two output ends, two output ends of second group of IGBT module, described
Two output ends of third group IGBT module pass through monoblock type V phase AC copper bar (45) respectively, monoblock type W phase AC copper bar (46) carries out
Confluence is in parallel, the V phase AC copper bar, W phase AC bronze medal respectively the one Z-shaped V phase of extension at the confluence parallel connection export it is compound
Copper bar, a Z-shaped U phase export composite copper bar, and the Z-shaped V phase exports composite copper bar, the Z-shaped U phase exports composite copper bar point
It is not electrically connected with the V phase terminal of the three phase alternating current motor, W phase terminal.
3. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as claimed in claim 2, feature
Be: the U phase AC copper bar, V phase AC copper bar, W phase AC copper bar are all arranged in parallel；The Z-shaped U phase exports composite copper bar, Z-shaped V
Mutually output composite copper bar, Z-shaped W phase export composite copper bar and are all arranged in parallel；Three AC copper bars are equidistant two-by-two；Described in three
It is equidistant two-by-two to export composite copper bar.
4. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as described in claim 1, feature
Be: the main box includes low-voltage signal interface (71), high-voltage signal interface (72), three phase alternating current motor interface (73), pressure
Dynamic balance valve (74), PEU grounding point (75) and PEU installation point (76)；
The low-voltage signal interface, for connecting, external power supply management system, entire car controller, motor rotation becomes module and temperature passes
Feel module；
The high-voltage signal interface, for connecting external cell junction box, for the power input port for inputting external dc high pressure；
The three phase alternating current motor interface, for connecting U, V, W three-phase terminal of three phase alternating current motor；
The equilibrated valve, for adjusting pressure in main box；
The PEU grounding point is used for ground protection；
The PEU installation point, for the main box to be fixed on external power drive system.
5. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as described in claim 1, feature
Be: the main box further includes water-cooling base plate (77) and water-cooling cover plate (78), and the water-cooling base plate has one to accommodate water cooling lid
The accommodating chamber of plate, the bottom of the accommodating chamber have water buffering convex block (79) and a parallel cooling water channel (80), and the water is slow
The middle position that convex block is located at the parallel cooling water channel is rushed, one end of the parallel cooling water channel is cooling water intake
(801), the other end of the parallel cooling water channel is cooling water outlet (802), and there are two accommodate three for the water-cooling cover plate tool
The holding tank of the group IGBT module is equipped with sealing ring between IGBT module described in the holding tank and every group.
6. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as described in claim 1, feature
Be: the DC filter is fixed as one with the high-voltage connector by two DC master rows (15), and described two straight
Stream busbar lies across the DC filter, and the DC filter includes level-one filter module (91) and secondary filter module
(92), the level-one filter module is equipped with first pair of Y capacitance (911), the first X capacitor (912) and the first magnetic core (913), described
Secondary filter module is equipped with second pair of Y capacitance (921), the 2nd X capacitor (922) and the second magnetic core (923), first pair of Y electricity
Appearance, second pair of Y capacitance are all set to the two sides of two DC master rows, and the first X capacitor, the 2nd X capacitor are all set to
Between two DC master rows, two DC master rows sequentially pass through first magnetic core, the second magnetic core, and described two straight
Stream busbar is set far from one end of the high-voltage connector there are two bus capacitor interface (151).
7. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as claimed in claim 5, feature
It is: is equipped with the heat-conducting silicone grease (773) of strip projected parts in the main box, the integrated form circuit board passes through the strip projected parts
Heat-conducting silicone grease be bonded with the main box, the integrated form circuit board includes control circuit module (31) and drive circuit module
(32), convex ribs (33) are equipped between the control circuit module and the drive circuit module, the convex ribs are fixedly installed on institute
State the inner surface of upper cover plate.
8. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as claimed in claim 7, feature
Be: the water-cooling base plate is equipped with water channel expansion area (771), the water channel expansion area, the convex ribs, the main box it is outer
Upper cover plate composition closed cavity area (772) of wall, the main box, the control circuit module are arranged in the closed cavity area
It is interior.
9. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as claimed in claim 7, feature
It is: 1 control circuit module and 2 drive circuit modules is set on the integrated form circuit board.
10. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as described in claim 1, feature
Be: IGBT module described in every group is all arranged side by side, and the DC input terminal of IGBT module described in every group is set in the outer part two
Side, the AC output terminal side-by-side alignment setting of IGBT module described in every group.
11. a kind of power electronic control system of double IGBT single inverters of parallel current-sharing as claimed in claim 5, feature
It is: is equipped with insulating heat-conductive pad (14) between the water-cooling base plate and the DC-LINK capacitor, the DC-LINK capacitor is one
Body formula capacitor and be arranged between the IGBT module and the water-cooling cover plate.
12. a kind of passenger car based on 800V voltage platform comprising have the three phase alternating current motor for output power, feature
It is: further includes the power electronic control system as described in any one of claims 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141982.2U CN209516989U (en) | 2018-12-19 | 2018-12-19 | A kind of power electronic control system of double IGBT single inverters of parallel current-sharing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822141982.2U CN209516989U (en) | 2018-12-19 | 2018-12-19 | A kind of power electronic control system of double IGBT single inverters of parallel current-sharing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697846A (en) * | 2020-06-10 | 2020-09-22 | 中国第一汽车股份有限公司 | Motor controller and vehicle |
| CN112953223A (en) * | 2021-03-15 | 2021-06-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Four-phase interleaved parallel Buck/Boost direct current converter |
| US11820523B1 (en) | 2022-10-06 | 2023-11-21 | Archer Aviation, Inc. | Systems and methods for, and components of, gearboxes for eVTOL aircraft |
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2018
- 2018-12-19 CN CN201822141982.2U patent/CN209516989U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697846A (en) * | 2020-06-10 | 2020-09-22 | 中国第一汽车股份有限公司 | Motor controller and vehicle |
| CN111697846B (en) * | 2020-06-10 | 2021-08-24 | 中国第一汽车股份有限公司 | Motor controller and vehicle |
| CN112953223A (en) * | 2021-03-15 | 2021-06-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Four-phase interleaved parallel Buck/Boost direct current converter |
| CN112953223B (en) * | 2021-03-15 | 2022-03-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Four-phase interleaved parallel Buck/Boost direct current converter |
| US11820523B1 (en) | 2022-10-06 | 2023-11-21 | Archer Aviation, Inc. | Systems and methods for, and components of, gearboxes for eVTOL aircraft |
| US11912424B1 (en) | 2022-10-06 | 2024-02-27 | Archer Aviation Inc. | Systems and methods for improved gearboxes for eVTOL aircraft |
| US11958621B1 (en) | 2022-10-06 | 2024-04-16 | Archer Aviation, Inc. | Systems and methods for, and components of, gearboxes for eVTOL aircraft |
| US11975853B2 (en) | 2022-10-06 | 2024-05-07 | Archer Aviation, Inc. | Systems for cooling an electrical engine for eVTOL aircraft using an end bell assembly connected to a thermal plate |
| US11975854B2 (en) | 2022-10-06 | 2024-05-07 | Archer Aviation, Inc. | Systems, methods, and mechanical designs for inverters for eVTOL aircraft |
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Effective date of registration: 20220308 Address after: No. 1088, Xinxing Third Road, Pinghu Economic Development Zone, Jiaxing City, Zhejiang Province, 314201 Patentee after: ZHEJIANG YIKONG POWER SYSTEM Co.,Ltd. Address before: 201804 Room 201, unit 3, building 5, Lane 56, Antuo Road, Anting Town, Jiading District, Shanghai Patentee before: SHANGHAI YIKONG POWER SYSTEM Co.,Ltd. |