CN105450140B - H bridge varistructures formula driving topology - Google Patents
H bridge varistructures formula driving topology Download PDFInfo
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- CN105450140B CN105450140B CN201510965366.7A CN201510965366A CN105450140B CN 105450140 B CN105450140 B CN 105450140B CN 201510965366 A CN201510965366 A CN 201510965366A CN 105450140 B CN105450140 B CN 105450140B
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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
- H02P27/06—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 using dc to ac converters or inverters
- H02P27/08—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 using dc to ac converters or inverters with pulse width modulation
- H02P27/085—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 using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
H bridge varistructures formula driving topology, it is assumed that when the open winding electric machine number of phases is 2N, N >=2；Then, power supply group includes N number of dc power power supply, each dc power power supply have output just with export minus two terminals；Power switch group includes 2N power switch；The H bridges group includes 4 × 2N power tube, forms 2N H bridge；Each H bridges are that battery limit (BL) be divided to left and right two bridge arms using open winding electric machine, and each bridge arm is formed together with drain electrode and the source series of two power tubes, the drain electrode one after series connection terminate access after a power switch dc power power supply output plus terminal it is sub；Source electrode one after series connection accesses the output negative terminal for corresponding to dc power power supply after terminating a power switch；Binding post is provided between the drain electrode being cascaded in the bridge arm of each H bridges and source electrode, binding post is connected with the terminal of the winding of open winding electric machine, and two H bridges are powered by same dc power power supply corresponding to function identical winding.
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 H bridges varistructure formula.
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.
It is the shortcomings that in order to overcome three phase full bridge to drive topological structure, general to use independent H-bridge structure, i.e. two per phase winding
Individual terminal all draws outside motor, and the independent H-bridge structure being made up of four power tubes drives, and is so sent out in some power tube
During raw failure, the normal work of other power tubes is not interfered with, while is adjusted on control strategy, by controlling other just
The electric current output of normal phase, the power missing of failure phase can be made up.But this independent H-bridge structure overcomes three phase full bridge knot
The shortcomings that structure, there is certain flexibility and failure reconfiguration can be carried out, still, its structure is changeless, it is impossible to be more preferable
Ground meets 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：A kind of high reliability is provided, is suitable for the H bridge varistructure formulas of different operating modes
Driving topology.
The present invention technical solution be：H bridge varistructures formula driving topology, including H bridges group, power switch group and electricity
Source group；Assuming that when the open winding electric machine number of phases is 2N, N >=2；Then, power supply group includes N number of dc power power supply, each direct current
Power power-supply have output just with export minus two terminals；Power switch group includes 2N power switch；The H bridges group include 4 ×
2N power tube, form 2N H bridge；Each H bridges are divided to left and right two bridge arms, 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, the drain electrode one after series connection accesses one after terminating a power switch
Output plus terminal of individual dc power power supply；Source electrode one after series connection accesses corresponding dc power electricity after terminating a power switch
The output negative terminal in source；Binding post, binding post are provided between the drain electrode being cascaded in the bridge arm of each H bridges and source electrode
It is connected with the terminal of the winding of open winding electric machine, two H bridges are by same dc power corresponding to function identical winding
Power supply is powered.
When needing to change N number of H bridges structure into by 2N H bridging, will a shared dc power power supply two H bridges it is same
The power switch of side bridge arm upper and lower ends disconnects, at the same by two bridge arms of homonymy with dc power power supply output plus terminal or
The power tube of person's negative terminal connection is closed, and the power tube being connected with opposite side is normally opened, by two H of a shared dc power power supply
Two windings in series of bridge driving, form a new winding, are driven by a H bridge.
When some winding or power tube break down, closing is broken down where winding or power tube on H bridges
All power tubes, function identical winding current double, and realize faults-tolerant control.
A half-H-bridge is closed to be operated under light-load mode.
The present invention has the beneficial effect that compared with prior art：
Topology is driven according to the varistructure formula of the present invention, according to different duty requirements, driving topology knot can be converted
Structure so that open winding electric machine reaches different working conditions, realizes that a motor can meet various working demand, compares
More motors+clutch carry out speed or moment coupling system, realize a tractor serves several purposes, at the same eliminate mechanical coupler volume,
Weight, vibration and noise source, and eliminate maintenance of machine etc., can effectively improve electric system power density, motor with
Power device utilization rate, reduce system weight and volume.In addition, compared to common H bridges driving topological structure, the driving topological structure
Also there is very strong failure tolerant ability and online structure changes ability, can be realized very flexible according to different duty requirements
Structural Transformation, so as to improve the reliability of system and security.
Brief description of the drawings
Fig. 1 is the Organization Chart according to 2 × N phase H bridge varistructures formula driving topological structure of the present invention；
Fig. 2 is the Organization Chart according to the six phase H bridge varistructures formulas 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, topological structure of the present invention includes H bridges group 40, power switch group 50 and power supply group 60；The H bridges group
Power tube quantity and the number of phases of open winding electric machine match in 40, when the open winding electric machine number of phases is 2 × N, wherein,
N >=2, the quantity of power tube 41 are 4 × 2 × N, are divided into 2 × N number of H bridges 42, and each H bridges 42 include left and right two bridge arms 45,
The 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 work(
Rate pipe 41, each H bridges 42 share four power tubes 41, and the intermediate point of each bridge arm 45 connects provided with a winding
Line terminals 43, the winding connection terminal 43 is connected with two terminals of the winding of open winding electric machine respectively, in addition, each
The H bridges 42 are additionally provided with two power supply terminals 44, are connected respectively with the power switch for controlling the power supply group 60.
The power switch group 50 includes 2 × N number of power switch 51, and the power switch 51 by connecing power supply just and electricity respectively
The negative two power switch composition in source, and provided with the power power-supply binding post 52 for connecing the power supply group 60 and connect the H bridges 40
Power supply terminal 53, the power power-supply binding post 52 is connected with the dc power power supply of the power supply group 60, described
Power supply terminal 53 is connected with the power supply terminal 44 of the H bridges 42.
The power supply group 60 includes N number of dc power power supply 61, each dc power power supply 61 have output just with it is defeated
Go out minus two terminals, be connected respectively with the power power-supply binding post 52, and each dc power power supply 61 is simultaneously
Supply left and right two bridge arms 45, every phase winding of so open winding electric machine by a drive control of H bridges 42,
First bridge arm 45 and N+1 a bridge arm 45 on left and right both sides are also by the same dc power power supply simultaneously
61 power supplies.
Power switch 51 is provided with the input being connected with controller 10, is additionally provided with the output being connected with subsequent power group 60
End, for the drive control data signal for exporting controller 10, by signal isolation 20 and power drive 30, letter is realized respectively
Number isolation and power drive enlarging function, the control terminal to the power switch 51 in power switch group 50 is exported, so as to control work(
The conducting state of rate switch 51, to reach the break-make of control H bridges 42 and dc power power supply 61；
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 the 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 or following two power tube 41
In normally open, by below in H bridges 42 or both the above power tube 41 is in normally off, so in normally open
Two power tubes 41 are connected two windings so as to realize equivalent to wire, 2 of other same sides (left side or the right)
H bridges 42 also realize identical function, so as to which the 6 phase motors driven by 6 H bridges 42 to be connected into new 3 phase driven by 3 H bridges 42
Motor, i.e., it is the cascade of original two windings per phase 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 6, wherein, N=3, the quantity of power tube 41 is 24, is divided into 6 H bridges.By each pair function phase of varistructure
H bridges where same winding, a power power-supply can be used to power using a power power-supply, such as winding 1W1 and 2W1,
The quantity of power power-supply can so be saved.Each H bridges 42 include left and right two bridge arms 45, by bridge arm 45 with open winding
Motor is that battery limit (BL) point is left and right, and each bridge arm 45 includes upper and lower each power tube 41, and each H bridges 42 share four power tubes
41, the intermediate point of each bridge arm 45 is provided with a winding connection terminal 43, and winding connection terminal 43 is electric with open winding respectively
Two terminals of the winding of machine are connected, in addition, each H bridges 42 are additionally provided with two power supply terminals 44, respectively with controlling power supply
The power switch of group 60 is connected；
Power switch group 50 includes 6 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, while first bridge arm on left and right both sides
45 and the 4th bridge arms 45 are also powered by same dc power power supply 61.
When needing structure changes, such as power switch T7 and T8 can be disconnected, by power tube 1Q3,1Q2,4Q3 and 4Q2 institute
Bridge arm disconnected from power power-supply 1VS, while by power tube 1Q3 and 4Q3 turn off, by power tube 1Q2 and 4Q2 turn on, this
Power tube 1Q2 and 4Q2 of the sample winding 1W1 right-hand member by conducting, are connected to winding 2W1 right-hand member, are so achieved that two
The series connection of winding, a new winding is formed, and new H bridges are formed to drive, so by power tube 1Q1,1Q4,4Q1 and 4Q4
It is achieved that structure changes function；Other phase windings are also similar handled.It is of course also possible to it is changed to 6 H bridges by 3 H bridgings
Driving, operating process are the inverse process of said process.
Winding 1W1-1W3 is functionally identical respectively with winding 2W1-2W3, and event occurs in some winding or power tube
After barrier, and doubled by the power tube Close All on that the H bridge to break down, and by function identical winding current to make up
The missing of failure phase, output torque held stationary is thereby may be ensured that, realize failure tolerant function.Event is occurring for the topological structure
During barrier, the number of phases or device of closing are minimum, thereby may be ensured that the more efficient of system.Moreover, the topological structure is also to power
Power supply, power tube and power switch etc. have failure tolerant ability.According to duty requirements, a half-H-bridge can be closed, it is light to realize
Carry mode of operation.When whole H bridges driving topological structure works, 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 (4)
1.H bridge varistructures formula 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 2N, N>2；Power supply group (60) includes N number of dc power power supply (61), each direct current work(
Rate power supply (61) have output just with export minus two terminals；Power switch group (50) includes 2N power switch (51)；The H bridges
Group (40) includes 4 × 2N power tube (41), forms 2N H bridge (42)；Each H bridges are using open winding electric machine as battery limit (BL) point
Left and right two bridge arms, each bridge arm are formed together with drain electrode and the source series of two power tubes, latter two power tube of connecting
In be not engaged in series connection drain electrode connect a power switch (51) access afterwards one dc power power supply output plus terminal it is sub；Series connection
The source electrode that series connection is not engaged in latter two power tube connects and the output of corresponding dc power power supply is accessed after a power switch bears
Terminal；Binding post (43), binding post and opening are provided between the drain electrode being cascaded in the bridge arm of each H bridges and source electrode
The terminal connection of the winding of formula winding electric machine, two H bridges corresponding to function identical winding are supplied by same dc power power supply
Electricity.
2. H bridges varistructure formula driving topology according to claim 1, it is characterised in that：When needs are changed by 2N H bridging
During into N number of H bridges structure, the power switch of the same side bridge arm upper and lower ends of two H bridges of a dc power power supply will be shared
Shut-off, while the power tube being connected on two bridge arms of homonymy with dc power power supply output plus terminal or negative terminal is turned off,
Turned on the power tube of opposite side connection, two windings in series of two H bridges drivings of a dc power power supply will be shared, formed
One new winding, driven by a H bridge.
3. H bridges varistructure formula driving topology according to claim 1, it is characterised in that：When some winding or power
When pipe breaks down, all power tubes to break down where winding or power tube on H bridges, function identical winding electricity are turned off
Stream doubles, and realizes faults-tolerant control.
4. H bridges varistructure formula driving topology according to claim 1, it is characterised in that：A half-H-bridge is closed to be operated in gently
Under load pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965366.7A CN105450140B (en) | 2015-12-21 | 2015-12-21 | H bridge varistructures formula driving topology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510965366.7A CN105450140B (en) | 2015-12-21 | 2015-12-21 | H bridge varistructures formula driving topology |
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| Publication Number | Publication Date |
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| CN105450140A CN105450140A (en) | 2016-03-30 |
| CN105450140B true CN105450140B (en) | 2018-02-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111711397B (en) * | 2020-05-27 | 2021-11-02 | 东南大学 | Predictive current control method for semi-centralized open-winding permanent magnet synchronous motor system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5917295A (en) * | 1996-01-31 | 1999-06-29 | Kaman Electromagnetics Corporation | Motor drive system having a plurality of series connected H-bridges |
| CN103457503A (en) * | 2013-09-16 | 2013-12-18 | 清华大学 | Reconfigurable fault-tolerant type driving topological structure of redundant power source |
| CN104753382A (en) * | 2015-04-10 | 2015-07-01 | 东南大学 | Fault tolerance inverter circuit of dual-power five-phase open-winding system for electric vehicle |
-
2015
- 2015-12-21 CN CN201510965366.7A patent/CN105450140B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5917295A (en) * | 1996-01-31 | 1999-06-29 | Kaman Electromagnetics Corporation | Motor drive system having a plurality of series connected H-bridges |
| CN103457503A (en) * | 2013-09-16 | 2013-12-18 | 清华大学 | Reconfigurable fault-tolerant type driving topological structure of redundant power source |
| CN104753382A (en) * | 2015-04-10 | 2015-07-01 | 东南大学 | Fault tolerance inverter circuit of dual-power five-phase open-winding system for electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 四相永磁容错电机短路故障容错策略;司宾强等;《控制与决策》;20140831;第29卷(第8期);第1489-1494页 * |
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