CN207106240U - A kind of integrated motor driving and on-board charging system based on more excitation source motors - Google Patents
A kind of integrated motor driving and on-board charging system based on more excitation source motors Download PDFInfo
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- CN207106240U CN207106240U CN201721023362.8U CN201721023362U CN207106240U CN 207106240 U CN207106240 U CN 207106240U CN 201721023362 U CN201721023362 U CN 201721023362U CN 207106240 U CN207106240 U CN 207106240U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model discloses a kind of integrated motor driving based on more excitation source motors and on-board charging system, including charging inlet, switching device, more excitation source motor, power conversion modules and the power battery modules being sequentially connected, it is connected between the power conversion modules and the electrokinetic cell by relay, the power conversion modules bus bar side is parallel with bus capacitor；The switching device, there is at least three net side terminals and m motor side terminal；More excitation source motors include stator core, rotor core, armature winding and excitation source；The power conversion modules include power main circuit and controller.The utility model can be on the premise of not increasing excess power conversion module or changing motor performance index, realize matching and the driving of global high efficiency and the charging ability of battery charging voltage, and pattern switching is simple and convenient, there is good application prospect in vehicle electric system integration field.
Description
Technical field
The utility model belongs to vehicle electric system integrated technology field, especially a kind of electricity based on more excitation source motors
Electrical automobile is driven with integrated motor and on-board charging system.
Background technology
Under the severe pressure that global energy crisis and Domestic Environment pollute, electric automobile has turned into the certainty of auto industry
Developing direction.With the continuous development of recent domestic ev industry, market and whole-car firm are to electric in electric automobile
The index such as machine drive system and the volume of electrokinetic cell and its on-board charging system, weight, efficiency, cost proposes more and more higher
Requirement.By taking driving motor for electric automobile as an example, to improve vehicle performance and realizing lightweight target, power of motor density and effect
Rate improves constantly, it is contemplated that to the year two thousand twenty, will have peak power density to be more than the high-performance of 4kW/kg, peak efficiency more than 96%
Passenger car motor realizes volume production.Similar, industrial circle is to the power density of power electronics assembly of future generation, electrokinetic cell
Energy density etc. is proposed high requirement.Therefore, electricity drive, the volume and weight of battery system in electric automobile how are reduced,
Improve whole efficiency, it has also become domestic and international focus of attention.
High power vehicular charger, because it is not limited by charging pile, the spy of flexible quick charge can be carried out whenever and wherever possible
Property and obtain extensive concern, but because it increases weight, volume and the cost of vehicle and battery system, never obtain big
Sizable application.For this technical barrier, in recent years, a kind of integrated motor driving and vehicle-mounted charge system are proposed both at home and abroad
System.In such system, in the drive mode, electrokinetic cell is under the control of the controller conveyed energy by driving inverter
To motor, motor operating；Under charge mode, the reactor extra by the use of machine winding or increase is used as grid-connected reactance
Device, driving inverter are used as rectifier, and the single-phase or three phase mains in outside is by inverter inverted running, under the control of the controller
Electrokinetic cell is delivered energy to, realizes that battery charges.Hold because the capacity of motor drive inverter is typically much deeper than charger
Amount, therefore, by the time-sharing multiplex to motor drive inverter, in such system, can not increase system weight in principle
On the basis of amount, volume and cost, realize that high power vehicular charges, but still suffer from many defects.Wherein more it is significantly：
Under charge mode, rectifier is operated in boost mode, if do not increased extra power conversion modules or changing the electricity of electrokinetic cell
Press grade, then can not realize the matching of net side supply voltage and battery charging voltage, so as to or can not realize the height of rectifier
Efficiency operation (such as voltage on line side exchanges for single-phase 220V, and cell voltage is 1200V direct currents), or be unable to reach battery at all and fill
Piezoelectric voltage (such as voltage on line side exchanges for single-phase 220V, and cell voltage is 144V direct currents)；And cell voltage grade is to coordinate motor
Body parameter and determine, and motor body parameter and motor performance are closely bound up, tend not to make compromise or change.More than
Defect make it that such integrated form system reform is complicated or needs to increase additional element, therefore is never widely applied.
In view of the particular application of driving motor for electric automobile, it is close that it should be provided simultaneously with high efficiency, high power
The characteristics such as degree, high reliability and wide speed regulating range.For above performance requirement, while the multiple excitation comprising permanent magnet excitation and electrical excitation
The online control technique of magnetic source design of electrical motor method and its magnetic field is got the attention, especially, for a kind of special stator
Excitation type motor, because its excitation source is respectively positioned on the unique advantage of stator, it can easily utilize more excitation source design methods
The direct regulation and control of permanent magnetic field is realized, so as to make motor expeditiously realize extremely wide speed adjustable range.
Therefore, based on more excitation source motors, a kind of high efficiency integrated motor driving being easily achieved of utility model and car
Carrying charging system has far-reaching significance.
Utility model content
The purpose of this utility model is that provide a kind of integrated motor driving based on more excitation source motors fills with vehicle-mounted
Electric system, on the basis of Motor for Electric Automobile drive system performance is fully met, pass through each bridge arm of reasonable disposition inverter
And machine winding, on the basis of additional devices and change motor external characteristics are not increased, high-power, high-efficiency vehicle-mounted charging is realized,
And pattern switching is simple and convenient, so as to solve above mentioned problem existing for prior art.
The technical solution adopted in the utility model is：It is a kind of based on more excitation source motors integrated motor driving with it is vehicle-mounted
Charging system, including charging inlet, switching device, more excitation source motor, power conversion modules and the electrokinetic cells being sequentially connected
Module, it is connected between the power conversion modules and the electrokinetic cell by relay, the power conversion modules bus bar side
It is parallel with bus capacitor；
The charging inlet meets GB/T 20234.2-2015 requirements, can access single-phase or three-phase alternating-current supply；
The switching device, there are at least three net side terminals and m motor side terminal, m >=3；Switching device is
During one state, ensure there is stable electrical connection, and the net side terminals and the electricity between the m motor side terminal
There is stable electric isolution between pusher side terminals；Switching device ensures have between the m motor terminals in the second state
Stable electric isolution, and according to different application scenarios, have between the net side terminals and the different motor side terminals
Stable electrical connection；
More excitation source motors include stator core, rotor core, armature winding and excitation source；More excitation source motors,
Can be external stator, inner rotor core or outer rotor, default minor structure；The armature winding, it is normally at stator iron
Core, number of phases m, it is however generally that, m >=3；The excitation source is made up of permanent magnet and Exciting Windings for Transverse Differential Protection, and both both can be in stator iron
, can also be on rotor core on core, the permanent magnet can be the rare earth permanent-magnetic materials such as neodymium iron boron or ferrite etc.
Non- rare earth permanent-magnetic material；The Exciting Windings for Transverse Differential Protection number of phases is n, it is however generally that, n >=1；
The power conversion modules include power main circuit and controller；The power main circuit includes m+n full-bridge bridge
Arm, the bus bar side positive pole and negative pole of all bridge arms are respectively connected together, form the power main circuit DC side positive pole and
DC side negative pole；In the m+n bridge arm, m bridge arm is armature bridge arm, and m armature output end be present；N bridge arm is to encourage
Magnetic bridge arm, and n excitation output end be present；
The power battery module is generally more Battery packs and combined through connection in series-parallel, can be lithium ion battery, also may be used
To be lead-acid battery etc., and the power battery module has anode and GND.
One end of the armature winding is connected with the motor side terminal in the switching device, the other end and the armature
Output end is connected；
One end of the Exciting Windings for Transverse Differential Protection is connected with the excitation output end, and the other end is connected with anode；
The DC side positive pole of the power conversion modules is connected with anode by relay, DC side negative pole and battery
Negative pole is joined directly together；
Under drive pattern of the present utility model, switching device closes in first state, relay, the armature winding,
Armature bridge arm, bus capacitor and power battery module form armature full bridge inverter, realize under the control of the controller basic
Motor drive function；Meanwhile the Exciting Windings for Transverse Differential Protection, excitation bridge arm and power battery module form DC transfer circuit, are controlling
Under the control of device, the electric current in Exciting Windings for Transverse Differential Protection is adjusted, the online adjustable magnetic function of motor is realized, allows motor in the wider range of speeds
Inside realize high-efficiency operation；
Under charge mode, switching device is opened in the second state, relay, the charging inlet and the armature winding
It is connected, the armature winding is as network reactor, and armature bridge arm, bus capacitor composition first order boosting full-bridge rectification electricity
Road, under the control of the controller, net side PFC and rectification function are realized, its output DC voltage can be less than or height
In battery charging voltage, so as to ensure the high-efficiency operation of converter；Meanwhile the Exciting Windings for Transverse Differential Protection and excitation bridge arm composition second
Level DC transfer circuit, can be booster circuit, reduction voltage circuit or step-up/step-down circuit, by the output for adjusting prime rectification circuit
Voltage, realize cell voltage matching and charging control function；
Because influence of the parameter to motor performance of Exciting Windings for Transverse Differential Protection is much smaller than armature winding, therefore, do not change armature around
Group design, i.e., on the premise of not changing motor basic performance, by the rational design and control to Exciting Windings for Transverse Differential Protection, according to above institute
Structure is stated, the utility model can realize matching and the driving of global high efficiency and the charge function of battery charging voltage.
Beneficial effect：With existing similar integrated motor driving compared with on-board charging system, there is advantages below：
1. in the drive mode, by rationally controlling armature bridge arm and excitation bridge arm, motor drivetrain can be realized simultaneously
The efficient of system, wide range speed control operation；
2. under charge mode, armature winding design can not changed, i.e., on the basis of not influenceing motor performance, passed through
Rationally design and control Exciting Windings for Transverse Differential Protection and its excitation bridge arm, form DC converter, so as to complete charging voltage matching and efficiently
Rate charges.
Brief description of the drawings
Fig. 1 is integrated motor driving and the structured flowchart of on-board charging system based on more excitation source motors；
Fig. 2 is the integrated motor driving and on-board charging system by taking five phase Magneticflux-switching type composite excitation motors as an example
General topology；
Fig. 3 is that the integrated motor driving by taking five phase Magneticflux-switching type composite excitation motors as an example exists with on-board charging system
Equivalent circuit structure block diagram under drive pattern；
Fig. 4 is that the integrated motor driving by taking five phase Magneticflux-switching type composite excitation motors as an example exists with on-board charging system
Equivalent circuit structure block diagram under single-phase charge mode.
Fig. 5 is that the integrated motor driving by taking five phase Magneticflux-switching type composite excitation motors as an example exists with on-board charging system
Equivalent circuit structure block diagram under three-phase charge mode.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, in figure, charging inlet 1, switching device 2, more excitation source motors 3, power conversion modules 4 and dynamic
Power battery module 7 is sequentially connected, and the power conversion modules 4 are connected with power battery module 7 by relay 5, the power
Conversion module bus bar side is parallel with bus capacitor 6.
The charging inlet 1 meets GB/T 20234.2-2015 requirements, can access single-phase or three-phase alternating-current supply；
The switching device 2, there is at least three net side terminals 21 and m motor side terminal 22；Switching device 2 exists
During first state, ensure there is stable electrical connection between the m motor side terminal 22, and the net side terminals 21 with
There is stable electric isolution between the motor side terminal 22；Switching device 2 ensures that the m motor connects in the second state
There is stable electric isolution between line end 21, and according to different application scenarios, the net side terminals 22 and the different motors
There is stable electrical connection between side terminal 21；
More excitation source motors 3 include stator core 31, rotor core 32, armature winding 33 and excitation source 34；It is described
Armature winding 33, it is normally at stator core 31, number of phases m, it is however generally that, m >=3；The excitation source 34 is by permanent magnet 341
Formed with Exciting Windings for Transverse Differential Protection 342, both both can be on stator core 31, can also be on rotor core 32, the permanent magnet
341 can be the non-rare earth permanent-magnetic material such as the rare earth permanent-magnetic materials such as neodymium iron boron or ferrite；The Exciting Windings for Transverse Differential Protection 342
The number of phases is n, it is however generally that, n >=1；
The power conversion modules 4 include power main circuit 41 and controller 42；The power main circuit 41 includes m+n
Individual full-bridge bridge arm, the bus bar side positive pole and negative pole of all bridge arms are respectively connected together, and form the direct current of the power main circuit
Side positive pole 415 and DC side negative pole 416；In the m+n bridge arm, m bridge arm is armature bridge arm 411, and it is defeated m armature to be present
Go out end 412；N bridge arm is excitation bridge arm 413, and n excitation output end 414 be present；
The power battery module 7 is generally more Battery packs and combined through connection in series-parallel, and the power battery module 7 has
There are anode 71 and GND 72.
One end of the armature winding 33 is connected with the motor side terminal 22 in the switching device 2, the other end and institute
Armature output end 412 is stated to be connected；
One end of the Exciting Windings for Transverse Differential Protection 342 is connected with the excitation output end 414, and the other end is connected with anode 71；
The DC side positive pole 415 of the power conversion modules 4 is connected with anode 71 by relay 5, and DC side is born
Pole 416 is joined directly together with GND 72；
In the utility model, more excitation source motors 3 can be external stator, inner rotor core or turn outside
Sub, default minor structure.
In the utility model, power battery module 7 can be lithium ion battery or lead-acid battery etc..
Operation principle：In the drive mode, switching device 2 closes in first state, relay 5, the armature winding
33rd, armature bridge arm 411, bus capacitor 6 and power battery module 7 form armature full bridge inverter, in the control of controller 42
Under realize basic Motor drive function；
In the drive mode, switching device 2 closes in first state, relay 5, the Exciting Windings for Transverse Differential Protection 342, excitation bridge arm
413 and power battery module 7 form DC transfer circuit, under the control of controller 42, by adjusting the electricity in Exciting Windings for Transverse Differential Protection
Stream, realize the online adjustable magnetic function of motor；
Under charge mode, switching device 2 is opened in the second state, relay 5, the charging inlet 1 and the armature
Winding 33 is connected, and selects armature winding 33 described in some phases to be used as network reactor, and armature bridge arm 411, bus capacitor 6 to form
Full bridge rectifier, under the control of controller 42, realize net side PFC and rectification function, wherein armature winding
Selection principle is:Ensure that motor does not produce torque during energization；
Under charge mode, switching device 2 is opened in the second state, relay 5, the Exciting Windings for Transverse Differential Protection 342 and exciting bridge
Arm 413 forms DC transfer circuit, realizes cell voltage matching and charging control function；
Because influence of the parameter to motor performance of Exciting Windings for Transverse Differential Protection 342 is much smaller than armature winding 33, therefore, by excitation
The rational design and control of winding 342, according to structure described above, the matching and global high efficiency for realizing battery charging voltage are driven
Dynamic and charge function.
Below using based on five phase Magneticflux-switching type composite excitation motors integrated motor driving and on-board charging system as
Example, operation principle of the present utility model is specifically described：
Such as Fig. 2, for based on the driving of the integrated motor of five phase Magneticflux-switching type composite excitation motors and on-board charging system
Structured flowchart, wherein five phase Magneticflux-switching type composite excitation motors have five phase armature winding A1-A5, a phase Exciting Windings for Transverse Differential Protection
F；Changed power module has five phase armature bridge arm L1-L5, a phase excitation bridge arm L6；Remaining is consistent with Fig. 1；
When switching device is in first state, and relay closes, the system is in drive pattern, and its structured flowchart is as schemed
Shown in 3：Armature winding A1-A5, armature bridge arm L1-L5 and busbar voltage C composition full bridge inverters, motor work；Encourage
Magnetic winding F and excitation bridge arm L6 composition DC chopper circuits, adjust exciting current, realize online adjustable magnetic；
When switching device is in the second state, and relay is opened, the system is in charge mode, for different switchings
Device, charge mode can include single-phase charge mode and three-phase charge mode；
Such as Fig. 4, for the single-phase charge mode structured flowchart of the system, two-phase armature winding A1-A2, armature bridge arm L1-L2
Single-phase full bridge rectification circuit Stage I are formed with bus capacitor C, complete PFC and first order boosting rectification function；
Exciting Windings for Transverse Differential Protection F and excitation bridge arm L6 forms DC decompression (Buck) circuit Stage II, and adjustment Stage I output voltage is complete
Into the matching with battery charging voltage；
Such as Fig. 5, for the three-phase charge mode structured flowchart of the system, armature winding A1-A5, armature bridge arm L1-L5 and mother
Line capacitance C compositions three-phase bridge rectification circuit Stage I, wherein L2 and L3, L4 and L5 bridge arm switching tube up and down simultaneously turn on
Shut-off, complete PFC and first order boosting rectification function；Exciting Windings for Transverse Differential Protection F and excitation bridge arm L6 forms DC decompression
(Buck) circuit Stage II, adjustment Stage I output voltage, complete the matching with battery charging voltage；
DC transfer circuit (the Stage in Fig. 4, Fig. 5 being made up of in the utility model Exciting Windings for Transverse Differential Protection and excitation bridge arm
II), DC boosting (Boost) circuit or direct current buck can be reconstructed into according to specific voltage on line side and cell voltage grade
(Buck-boost) circuit.
In a word, the utility model by more excitation source motor applications in integrated motor driving and on-board charging system in, can
Realize global high efficiency and the simple motor driving of switching and battery charging function., can be not compared with existing integrated form system
On the premise of increasing excess power conversion module or changing motor body design, matching and the high efficiency of battery charging voltage are realized
Driving and charging ability, and pattern switching is simple and convenient, it is basic without change original motor driver main circuit.Therefore, this practicality
New the integrated motor driving and on-board charging system based on more excitation source motors have very high scientific research value and work
Journey practical value.
Embodiment of the present utility model is described in detail above in association with accompanying drawing, but the utility model is not limited to institute
The embodiment of description.For one of ordinary skill in the art, in principle of the present utility model and the scope of technological thought
It is interior, these embodiments are carried out with a variety of changes, modification, replacement and deformation and is still fallen within the scope of protection of the utility model.
Claims (5)
1. a kind of integrated motor driving and on-board charging system based on more excitation source motors, it is characterised in that including successively
The charging inlet of connection（1）, switching device（2）, more excitation source motors（3）, power conversion modules（4）And power battery module
（7）, the power conversion modules（4）With power battery module（7）Pass through relay（6）It is connected, the power conversion modules（4）
Bus bar side is parallel with bus capacitor（5）；
The charging inlet（1）Meet to access single-phase or three-phase alternating-current supply；
The switching device（2）, there are at least three net side terminals（21）With m motor side terminal（22）, m >=3；Switching
Device（2）With two switching states；Switching device（2）In first state, m motor side terminal（22）Between have
Stable electrical connection, and the net side terminals（21）With motor side terminal（22）Between have stable electric isolution；Switching dress
Put（2）In the second state, m motor terminals（22）Between have stable electric isolution, the net side terminals（21）With not
With motor side terminal（22）Between have stable electrical connection；
More excitation source motors（3）Including stator core（31）, rotor core（32）, armature winding（33）And excitation source
（34）；The armature winding（33）, positioned at stator core（31）, number of phases m, m >=3；The excitation source（34）By permanent magnet
（341）And Exciting Windings for Transverse Differential Protection（342）Composition；The Exciting Windings for Transverse Differential Protection（342）The number of phases is n, n >=1；
The power conversion modules（4）Including power main circuit（41）And controller（42）；The power main circuit（41）Including m
+ n full-bridge bridge arms, the bus bar side positive pole and negative pole of all bridge arms are respectively connected together, and form the straight of the power main circuit
Flow side positive pole（415）With DC side negative pole（416）；In the m+n bridge arm, m bridge arm is armature bridge arm（411）, and m be present
Individual armature output end（412）；N bridge arm is excitation bridge arm（413）, and n excitation output end be present（414）；
The power battery module（7）Combined for more Battery packs through connection in series-parallel, and the power battery module has battery
Positive pole（71）And GND（72）；
The armature winding（33）One end and the switching device（2）In motor side terminal（22）Be connected, the other end with
The armature output end（412）It is connected；
The Exciting Windings for Transverse Differential Protection（342）One end and the excitation output end（414）It is connected, the other end and anode（71）Phase
Even；
The power conversion modules（4）DC side positive pole（415）With anode（71）Pass through relay（6）It is connected, direct current
Side negative pole（416）With GND（72）It is joined directly together.
2. a kind of integrated motor driving and on-board charging system based on more excitation source motors according to claim 1,
Characterized in that, more excitation source motors（3）It is external stator, inner rotor core, or outer rotor, default minor structure.
3. a kind of integrated motor driving and on-board charging system based on more excitation source motors according to claim 1,
Characterized in that, the excitation source（34）Positioned at stator core（31）, or positioned at rotor core（32）.
4. a kind of integrated motor driving and on-board charging system based on more excitation source motors according to claim 1,
Characterized in that, the permanent magnet（341）It is neodymium iron boron, or ferrite.
5. a kind of integrated motor driving and on-board charging system based on more excitation source motors according to claim 1,
Characterized in that, the power battery module（7）It is lithium ion battery, or lead-acid battery.
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| CN201721023362.8U CN207106240U (en) | 2017-08-15 | 2017-08-15 | A kind of integrated motor driving and on-board charging system based on more excitation source motors |
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| CN201721023362.8U CN207106240U (en) | 2017-08-15 | 2017-08-15 | A kind of integrated motor driving and on-board charging system based on more excitation source motors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364367A (en) * | 2017-08-15 | 2017-11-21 | 东南大学盐城新能源汽车研究院 | A kind of integrated motor driving and on-board charging system based on more excitation source motors |
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2017
- 2017-08-15 CN CN201721023362.8U patent/CN207106240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364367A (en) * | 2017-08-15 | 2017-11-21 | 东南大学盐城新能源汽车研究院 | A kind of integrated motor driving and on-board charging system based on more excitation source motors |
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