CN105656387B - Structure changes driving topology - Google Patents
Structure changes driving topology Download PDFInfo
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- CN105656387B CN105656387B CN201610103941.7A CN201610103941A CN105656387B CN 105656387 B CN105656387 B CN 105656387B CN 201610103941 A CN201610103941 A CN 201610103941A CN 105656387 B CN105656387 B CN 105656387B
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- power
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
- H02H7/0838—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements with H-bridge circuit
Abstract
A kind of structure changes driving topology, including H bridges group (40), power switch group (50) and power supply group (60)；Assuming that when the open winding electric machine number of phases is 3 × N+3, N >=1；Then, power supply group (60) includes N+1 dc power power supply (61), each dc power power supply (61) have output just with export minus two terminals；Power switch group (50) includes 4N+4 power switch (51)；The H bridges group (40) includes 4 × (3 × N+3) individual power tubes (41), forms 3 × N+3 H bridge (42)；Each H bridges are divided to left and right two bridge arms by battery limit (BL) of open winding electric machine, each bridge arm is formed together with drain electrode and the source series of two power tubes, binding post (43) is provided between the drain electrode and source electrode, binding post is connected with the terminal of the winding of open winding electric machine；Three H bridges being wherein connected with the three-phase windings terminal of open winding electric machine are one group, are powered by same dc power power supply.
Description
Technical field
The present invention relates to drive and control of electric machine field, and topology is driven in particular to a kind of structure changes.
Background technology
In motor driving, the topological structure of driver generally uses three phase full bridge structure, i.e. six power tubes form 3
Bridge arm, every phase winding terminal of the intermediate point connection motor of each bridge arm.The advantage of this topological structure is power device quantity
Less, small volume, cost are low, but its shortcoming is also that clearly, only one of which power tube breaks down, due to by three-phase
The constraint that electric current sum is zero, other 5 power tubes also just cannot normal work, therefore this topological structure without flexibility,
Reconstructed after failure can not being carried out.
In the driving of open winding electric machine, driver typically uses independent H-bridge structure, i.e. two terminals per phase winding
Outside motor is all drawn, and the independent H-bridge structure being made up of four power tubes drives, and is so broken down in some power tube
When, the normal work of other power tubes is not interfered with, while be adjusted on control strategy, by controlling other normal phases
Electric current exports, and can make up the power missing of failure phase.Although this independent H-bridge structure overcomes lacking for three phase full bridge structure
Point, there is certain flexibility and failure reconfiguration can be carried out, still, its structure is changeless, it is impossible to is preferably met
The wide scope requirement of electric system, such as the operating mode such as high speed, low speed, underloading, heavy duty, failure.
The content of the invention
The technology of the present invention solves problem：There is provided a kind of high reliability, be suitable for different operating modes structure changes driving open up
Flutter.
The present invention technical solution be：A kind of structure changes driving topology, including H bridges group, power switch group and power supply
Group；Assuming that when the open winding electric machine number of phases is 3 × N+3, N >=1；
Then, power supply group includes N+1 dc power power supply, and each dc power power supply has output two ends just minus with output
Son；Power switch group includes 4N+4 power switch；The H bridges group includes 4 × (3 × N+3) individual power tubes, composition 3 × N+3
H bridges；Each H bridges are that battery limit (BL) is divided to left and right two bridge arms using open winding electric machine, each bridge arm by two power tubes drain electrode with
Source series are formed together, are provided with binding post between the drain electrode and source electrode, binding post and open winding electric machine around
The terminal connection of group；Three H bridges being wherein connected with the three-phase windings terminal of open winding electric machine are one group, by same straight
Power power-supply power supply is flowed, the bridge arm of three H bridges is respectively defined as the bridge arm of the left side first and the bridge arm of the right first, the left side the
The two bridge arms and bridge arm of the right second, the bridge arm of the left side the 3rd and bridge arm of the right the 3rd；The bridge arm of the left side first and the bridge arm of the right the 3rd
Drain electrode end is directly accessed output plus terminal of same dc power power supply, the output of the corresponding dc power power supply of source terminal access
Negative terminal；The bridge arm of the left side second is in parallel with the bridge arm of the left side the 3rd, and the bridge arm of the right second and the bridge arm of the right first are in parallel；Leaked after parallel connection
Pole one terminates output plus terminal of a power switch access dc power power supply, and source electrode one accesses after terminating a power switch
The output negative terminal of corresponding dc power power supply, the grid of above-mentioned all power tubes and power switch is as control terminal.
When needing structure changes, the two bridge arm both ends in parallel of left and right in one group of H bridge being connected with three-phase windings terminal are closed
The power switch of connection, disconnect the connection of bridge arm and dc power power supply；Two power tubes on bridge arm in parallel are in simultaneously
Different on off states, and the power tube on off state for being guaranteed at each bridge arm top is identical, so as to which three-phase windings be carried out
Series connection, so as to be connected into by 3 × N+3 phase motors of the 3 × N+3 H bridges drivings by the new N+1 of the N+1 H bridges drivings
Phase motor.
When some winding or power tube break down, closing is broken down where winding or power tube on H bridges
All power tubes.
All H bridges of same dc power power supply power supply are closed, retain the one of at least one dc power power supply power supply
Group H bridge work, realizes light-load mode.
Bridge arm in parallel in 3 H bridges of each same dc power power supply power supply is closed, realizes light-load mode.
When some winding or power tube break down, closing is broken down where winding or power tube on H bridges
All power tubes.
Described power supply group limits according to achieved reliability demand, and space, volume and weight, can use 1 electricity
Source, the function of above-mentioned N+1 dc power power supply is realized by switching control.
Described power supply group limits according to achieved reliability demand, and space, volume and weight, can use 2 simultaneously
The power supply of connection, the function of above-mentioned N+1 dc power power supply is realized by switching control.
The present invention has the beneficial effect that compared with prior art：
(1) topology is driven according to the varistructure formula of the present invention, according to different duty requirements, driving topology can be converted
Structure so that open winding electric machine reaches different working conditions, realizes that a motor can meet various working demand, phase
Speed or moment coupling system are carried out than more motors+clutch, realizes a tractor serves several purposes, while eliminate the body of mechanical coupler
Product, weight, vibration and noise source, and maintenance of machine etc. is eliminated, electric system power density, motor can be effectively improved
With power device utilization rate, system weight and volume are reduced.In addition, compared to common H bridges driving topological structure, driving topology knot
Structure also has very strong failure tolerant ability and online structure changes ability, can be realized very clever according to different duty requirements
Structural Transformation living, so as to improve the reliability of system and security.
(2) present invention limits according to achieved reliability demand, and space, volume and weight, can use 1 or 2
Individual or N number of power supply, using flexible.
Brief description of the drawings
Fig. 1 is the Organization Chart according to topological structure of the present invention；
Fig. 2 is the Organization Chart according to the nine phase change structures driving topological structure of the present invention；
Fig. 3 is the drive system Organization Chart of the application present invention.
Embodiment
Below in conjunction with the accompanying drawings and example elaborates to the present invention.
As shown in figure 1, a kind of structure changes driving topology, including H bridges group 40, power switch group 50 and power supply group 60；Assuming that
When the open winding electric machine number of phases is 3 × N+3, N >=1；
Then, power supply group 60 includes N+1 dc power power supply 61, and each dc power power supply 61 has output just negative with output
Two terminals；Power switch group 50 includes 4N+4 power switch 51；The H bridges group 40 includes 4 × (3 × N+3) individual power tubes
41, form 3 × N+3 H bridge 42；Each H bridges are divided to left and right two bridge arms 45, each bridge arm by battery limit (BL) of open winding electric machine
Formed together with drain electrode and the source series of two power tubes, binding post 43, terminals are provided between the drain electrode and source electrode
The sub terminal with the winding of open winding electric machine is connected；Three be wherein connected with the three-phase windings terminal of open winding electric machine
Individual H bridges are one group, are powered by same dc power power supply, the bridge arm of three H bridges is respectively defined as into the bridge of the left side first
The arm and bridge arm of the right first, the bridge arm of the left side second and the bridge arm of the right second, the bridge arm of the left side the 3rd and the bridge arm of the right the 3rd；The left side
The drain electrode end of one bridge arm and the bridge arm of the right the 3rd (such as end of binding post 44 of diagram) is directly accessed same dc power electricity
Output plus terminal in source, the output negative terminal of the corresponding dc power power supply of source terminal access；The bridge arm of the left side second and the left side the 3rd
Bridge arm is in parallel, and the bridge arm of the right second and the bridge arm of the right first are in parallel；One power switch access direct current of the termination of drain electrode one after parallel connection
Output plus terminal of power power-supply, source electrode one access the output negative terminal for corresponding to dc power power supply after terminating a power switch
Son, the grid of above-mentioned all power tubes and power switch is as control terminal.
Limited according to real system reliability requirement, and space, volume and weight, can be by the N+1 dc powers
Power supply 61 is configured to 1,2 or multiple.
When needing structure changes, the two bridge arm both ends in parallel of left and right in one group of H bridge being connected with three-phase windings terminal are closed
The power switch of connection, disconnect the connection of bridge arm and dc power power supply；Two power tubes on bridge arm in parallel are in simultaneously
Different on off state, and the power tube on off state for being guaranteed at each bridge arm top or bottom is identical, so as to by three-phase
Winding is connected, and is driven so as to be connected into by 3 × N+3 phase motors of the 3 × N+3 H bridges drivings by the N+1 H bridges
Dynamic new N+1 phases motor.
Further, all H bridges of same dc power power supply power supply are closed, retain at least one dc power power supply
One group of H bridge work of power supply, realizes light-load mode.
Further, bridge arm in parallel in 3 H bridges of each same dc power power supply power supply is closed, realizes light-load mode.
When some winding or power tube break down, closing is broken down where winding or power tube on H bridges
All power tubes.
Fig. 3 is that topological structure of the present invention applies the framework in open winding electric machine drive system, specifically includes control
Device 10, signal isolation 20, switch power driving 30, topological structure of the present invention (H bridges group 40, power switch group 50 and power supply group
60)；
Controller 10, which is sent, drives topological variable-structure control to instruct to power switch 51, and power switch 51 is by left side or the right side
Side H bridges 42 disconnect with dc power power supply 61, while send control instruction by above in H bridges 42 described in homonymy or following two
The power tube 41 is in normally open, by below in the H bridges 42 or power tube 41 described in both the above is in normally closed shape
State, so four power tubes 41 in normally open are equivalent to wire, so as to realize the three of three same group H bridges drivings
Individual winding is connected, and others 3 × N number of H bridges 42 also realize identical function, so that will be by the 3 × N+3 H bridges 42
3 × N+3 phase motors of driving are connected into the new N+1 phases motor driven by the N+1 H bridges 42, i.e., are original three per phase winding
The cascade of individual winding, so as to realize the topological structure changes function of driving.
Signal isolation 20 is provided with the input being connected with controller 10, is additionally provided with the output being connected with subsequent power driving 30
End, for the variable-structure control or drive control data signal for exporting controller 10, realize mutually isolated with power signal
Function, protect controller 10 from the interference of power signal；
Power drive 30 is provided with the input being connected with signal isolation 20, is additionally provided with and follow-up H bridges group 40 and power switch
The connected output end of group 50, the number signal for signal isolation 20 to be exported carry out power drive, realize the function of power amplification,
To reach driving subsequent power pipe 41 and power switch 51；
Controller 10, which is provided with, receives the input that top level control device sends control instruction, and controls and become provided with output driving
The output end of structure control instruction, is connected with the input of signal isolation 20.
In the present invention, controller 10 can select MCU, DSP, CPLD or FPGA, realize the resolving of control instruction, driving control
The function such as system and variable-structure control instruction generation；Photoelectric coupling or magnetic coupling device, power drive may be selected in signal isolation 20
30 may be selected the device with drive amplification function；H bridges group 40 and the power tube in power switch group 50 and power switch are optional
Power MOS pipe is selected, break-make can be carried out according to drive control and variable-structure control instruction.
Embodiment
Shown in Fig. 2, power tube quantity and the number of phases of open winding electric machine match in H bridges group 40, in open winding
When number of motor phases is 9, wherein, N=2, the quantity of power tube 41 is 36, is divided into 9 H bridges.With the three-phase of open winding electric machine
Three H bridges of winding terminals connection are one group, are powered by same dc power power supply, such as connection winding 1W1,1W2 and 1W3
Three H bridges share a dc power power supply 1VS, can so save the quantity of power power-supply.Each H bridges 42 comprising it is left,
Right two bridge arms 45, bridge arm 45 is left and right as battery limit (BL) point using open winding electric machine, and each bridge arm 45 includes upper and lower each one
Power tube 41, each H bridges 42 share four power tubes 41, and the intermediate point of each bridge arm 45 is provided with a winding connection terminal 43,
Winding connection terminal 43 is connected with two terminals of the winding of open winding electric machine respectively, in addition, each H bridges 42 are additionally provided with two
Individual power supply terminal 44, it is connected respectively with the power switch for controlling power supply group 60；
Power switch group 50 includes 12 power switch 51, just born by connecing power supply respectively with power supply two of power switch 51
Power switch forms, and is provided with and connects the power power-supply binding post 52 of power supply group 60 and connect the power supply terminal 53 of H bridges 40, work(
Rate power supply terminal 52 is connected with the dc power power supply of power supply group 60, the power supply wiring of power supply terminal 53 and H bridges 42
Terminal 44 is connected；
Power supply group 60 includes 3 dc power power supplys 61, and each dc power power supply 61 has output minus two just with output
Terminal, it is connected respectively with power power-supply binding post 52, and each dc power power supply 61 supplies left and right two bridge arms simultaneously
45, every phase winding of so open winding electric machine is by a drive control of H bridges 42.
When needing structure changes, such as power switch T11, T12, T13 and T14 can be closed, by power tube 2Q1,3Q1,
2Q3 and 1Q3 are closed, while power tube 2Q4 and 3Q4,2Q2 and 1Q2 are in into normally open, such winding 1W1's
Right-hand member passes through normally opened power tube 1Q2 and 2Q2, is connected to winding 1W2 right-hand member, and 1W2 left end passes through normally opened 2Q4 and 3Q4
Winding 1W3 left end is connected to, is so achieved that the series connection of three windings, forms a new winding, and by power tube
1Q1,1Q4,3Q3 and 3Q2 form new H bridges to drive, and are so achieved that structure changes function；Other phase windings be also it is similar enter
Row processing.It is of course also possible to the conversion by the way that aforesaid operations process to be carried out to inverse operation progress structure.
According to duty requirements, all H bridges of same dc power power supply power supply can be closed, retain at least one direct current
One group of H bridge work of power power-supply power supply, such as only retain one group of H bridge work of 1VS power supplys power supply, realize light-load mode.
For underloading, it can also use and close 3 H bridges of each same dc power power supply power supply bridge arm in parallel, realize
Light-load mode.By taking 1VS power supplys as an example, close power switch T11, T12, T13 and T14, and power tube 2Q1,3Q1,2Q3 and
1Q3,2Q4 and 3Q4,2Q2 and 1Q2, power tube 1Q1,1Q4,3Q3 and 3Q2 is only caused to form new H bridges and carry out work.For 2VS electricity
Source, then power tube 4Q1,4Q4,6Q3 and 6Q2 is caused to form new H bridges and carry out work, etc..When whole H bridges driving topological structure is equal
During work, and it is operated under overload model, so as to realize heavy duty work pattern.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
- A kind of 1. structure changes driving topology, it is characterised in that：Including H bridges group (40), power switch group (50) and power supply group (60)； The open winding electric machine number of phases is 3 × N+3, N >=1；Power supply group (60) includes N+1 dc power power supply (61), each direct current Power power-supply (61) have output just with export minus two terminals；Power switch group (50) includes 4N+4 power switch (51)；Institute Stating H bridges group (40) includes 4 × (3 × N+3) individual power tubes (41), forms 3 × N+3 H bridge (42)；Each H bridges with it is open around Group motor is that battery limit (BL) be divided to left and right two bridge arms, and each bridge arm is formed together with drain electrode and the source series of two power tubes, this Binding post (43) is provided between drain electrode and source electrode, binding post is connected with the terminal of the winding of open winding electric machine；Wherein Three H bridges being connected with the three-phase windings terminal of open winding electric machine are one group, are powered by same dc power power supply, will The bridge arm of three H bridges is respectively defined as the bridge arm of the left side first and bridge arm of the right first, the bridge arm of the left side second and the right second Bridge arm, the bridge arm of the left side the 3rd and the bridge arm of the right the 3rd；The drain electrode end of the bridge arm of the left side first and the bridge arm of the right the 3rd is directly accessed together Output plus terminal of one dc power power supply, the output negative terminal of the corresponding dc power power supply of source terminal access；The left side second Bridge arm is in parallel with the bridge arm of the left side the 3rd, and the bridge arm of the right second and the bridge arm of the right first are in parallel；The drain electrode one of upper half bridge arm after parallel connection Output plus terminal of one power switch access dc power power supply of termination, the source electrode one of lower half bridge arm terminate a power switch The output negative terminal of corresponding dc power power supply is accessed afterwards, and the grid of above-mentioned all power tubes and power switch is as control terminal.
- A kind of 2. structure changes driving topology according to claim 1, it is characterised in that：When needing structure changes, shut-off with The power switch of left and right two bridge arm both ends connection in parallel, disconnects bridge arm and direct current in one group of H bridge of three-phase windings terminal connection The connection of power power-supply；Two power tubes on bridge arm in parallel are in different on off states simultaneously, and are guaranteed at each The power tube on off state of bridge arm top or bottom is identical, so as to which three-phase windings be connected, so that will be by 3 × N+3 institute 3 × N+3 phase the motors for stating the driving of H bridges are connected into by the new N+1 phases motor of the N+1 H bridges drivings.
- A kind of 3. structure changes driving topology according to claim 2, it is characterised in that：When some winding or power tube are sent out During raw failure, all power tubes to break down where winding or power tube on H bridges are turned off.
- A kind of 4. structure changes driving topology according to claim 1, it is characterised in that：Turn off same dc power power supply All H bridges of power supply, retain one group of H bridge work of at least one dc power power supply power supply, realize light-load mode.
- A kind of 5. structure changes driving topology according to claim 1, it is characterised in that：The each same dc power electricity of shut-off Bridge arm in parallel, realizes light-load mode in 3 H bridges of source power supply.
- A kind of 6. structure changes driving topology according to claim 1 or 4 or 5, it is characterised in that：When some winding or work( When rate pipe breaks down, all power tubes to break down where winding or power tube on H bridges are turned off.
- A kind of 7. structure changes driving topology according to claim 1, it is characterised in that：Described power supply group (60) is according to reality Border reliability requirement, and space, volume and weight are limited, and using 1 power supply, above-mentioned N+1 are realized directly by switching control Flow the function of power power-supply.
- A kind of 8. structure changes driving topology according to claim 1, it is characterised in that：Described power supply group (60) is according to reality Border reliability requirement, and space, volume and weight are limited, and using 2 power supplys in parallel, above-mentioned N+ is realized by switching control The function of 1 dc power power supply.
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| CN201610103941.7A CN105656387B (en) | 2016-02-26 | 2016-02-26 | Structure changes driving topology |
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| CN201610103941.7A CN105656387B (en) | 2016-02-26 | 2016-02-26 | Structure changes driving topology |
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| CN105656387B true CN105656387B (en) | 2018-01-05 |
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| CN113134318B (en) * | 2021-03-18 | 2023-02-03 | 上海品致测控技术有限公司 | Constant-temperature shaking table control method and controller |
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| CN103401453A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学宁波理工学院 | Three-phase current type multi-level converter topology structure |
| CN103457503A (en) * | 2013-09-16 | 2013-12-18 | 清华大学 | Reconfigurable fault-tolerant type driving topological structure of redundant power source |
| CN104601001A (en) * | 2014-12-25 | 2015-05-06 | 北京天诚同创电气有限公司 | Current conversion device and current conversion system for wind generating set |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5045799B2 (en) * | 2010-08-27 | 2012-10-10 | 株式会社デンソー | Power conversion device, drive device, and electric power steering device using the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401453A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学宁波理工学院 | Three-phase current type multi-level converter topology structure |
| CN103457503A (en) * | 2013-09-16 | 2013-12-18 | 清华大学 | Reconfigurable fault-tolerant type driving topological structure of redundant power source |
| CN104601001A (en) * | 2014-12-25 | 2015-05-06 | 北京天诚同创电气有限公司 | Current conversion device and current conversion system for wind generating set |
| CN104950257A (en) * | 2015-06-29 | 2015-09-30 | 吉林大学 | Test system and test method for open-end winding permanent magnet synchronous motor |
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