CN109889125A - A kind of multiphase Multiple coil traction drive and its control method - Google Patents
A kind of multiphase Multiple coil traction drive and its control method Download PDFInfo
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- CN109889125A CN109889125A CN201711269968.4A CN201711269968A CN109889125A CN 109889125 A CN109889125 A CN 109889125A CN 201711269968 A CN201711269968 A CN 201711269968A CN 109889125 A CN109889125 A CN 109889125A
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Abstract
The invention discloses a kind of multiphase Multiple coil traction drive and its control method, system includes: that the number of phases is M, and every phase includes the multiphase multiwinding machine of N number of winding, M >=3, N >=2；N number of polyphase inverter module, polyphase inverter module includes M phase bridge arm parallel with one another, the midpoint of every phase bridge arm is connected with a winding in one phase of multiphase multiwinding machine, and every phase winding draws N number of connecting terminal, and is independently driven by N number of polyphase inverter module；N number of sub-control unit, each sub-control unit are connected with a polyphase inverter module；Main control unit, main control unit are connected with N number of sub-control unit.The present invention is able to solve existing traction drive and its control method system reliability is low, and operational efficiency is low, running noises and the big technical problem of torque pulsation.
Description
Technical field
The present invention relates to electric traction drive technical field, more particularly, to a kind of multiphase Multiple coil traction drive and
Its control method.
Background technique
In order to meet the requirement of Electric Traction Drive System high reliability, high efficiency, high-power etc., existing traction
Transmission system control method generallys use polyphase machine structure either multiwinding machine structure.Using the electricity of polyphase windings structure
Machine increases with number of motor phases, and harmonic current, harmonic wave magnetomotive force and the minimum number of harmonic wave torque pulsation will all improve, especially
It is the reduction of torque pulsation, running noises and the mechanical oscillation of speed-regulating system can be substantially reduced.But since trailer system is run
Operating condition is complicated and changeable, and payload size is changed, the trailer system driven using single polyphase inverter since hauling speed changes
At light load, efficiency decline is very fast, and system effectiveness is unable to reach optimal.It is independent that multiple secondary winding installs more sets on motor stator
Three-phase windings, increase the redundancy and reliability of system.Simultaneously as multiwinding machine be based on three-phase windings,
Therefore not fully has the feature of polyphase machine.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of multiphase Multiple coil traction drive and its control method,
Low to solve existing traction drive and its control method system reliability, operational efficiency is low, running noises and torque arteries and veins
Move big technical problem.
In order to achieve the above-mentioned object of the invention, the present invention specifically provides a kind of technology of multiphase Multiple coil traction drive
Implementation, a kind of multiphase Multiple coil traction drive, comprising:
The number of phases is M, and every phase includes the multiphase multiwinding machine of N number of winding, M >=3, N >=2；
N number of polyphase inverter module, the polyphase inverter module include M phase bridge arm parallel with one another, every phase bridge arm
Midpoint is connected with a winding in one phase of multiphase multiwinding machine；Every phase winding draws N number of connecting terminal, and by
N number of polyphase inverter module independently drives；
N number of sub-control unit, each sub-control unit are connected with a polyphase inverter module；
Main control unit, the main control unit are connected with N number of sub-control unit.
Preferably, N number of winding is configured to that power is consistent or power is inconsistent in same phase, to meet the multiphase Multiple coil
Demand of the motor under different operating conditions.
Preferably, the data between the main control unit and sub-control unit are transmitted through including core bus, RS485, CAN
Data communication mode including bus or Ethernet is realized.
Preferably, the main control unit issues control instruction to the sub-control unit, and is fed back according to the sub-control unit
Data, configuration is optimized to the working condition of the sub-control unit and polyphase inverter module；The sub-control unit is to institute
The data for stating polyphase inverter module are acquired and control.
Preferably, the main control unit acquires the data of the sub-control unit, and the number of the comprehensive sub-control unit in real time
According to judging whether to need to optimize configuration to the winding currently put into.If not needing existing multiple windings currently to described
When multiphase multiwinding machine is powered, the investment winding and polyphase inverter module can be reduced, and select to make described more
The highest winding combination mode investment of phase current transformer module efficiency, to improve the efficiency of multiphase Multiple coil traction drive.
Preferably, when some polyphase inverter module certain mutually or the winding that is connected with this breaks down, it is described
It is out of service that main control unit by the sub-control unit controls the polyphase inverter module, and controls the winding of other normal works
With polyphase inverter module, the multiphase Multiple coil traction drive works in case of a fault and reduces power fortune
Row.
Preferably, when some polyphase inverter module certain mutually or the winding that is connected with this breaks down, it is described
Main control unit by the sub-control unit control the polyphase inverter module this is mutually out of service, and control other normal works
Winding and polyphase inverter module, the multiphase Multiple coil traction drive work in case of a fault and reduce function
Rate operation.
Preferably, when some polyphase inverter module certain mutually or the winding that is connected with this breaks down,
The main control unit by the sub-control unit control all multiphase converter modules this is mutually out of service, and control other normal
The winding and polyphase inverter module of work, the multiphase Multiple coil traction drive work in case of a fault and by
It is continued to run according to the control of multiphase multiwinding machine phase shortage.
In addition the present invention also specifically provides a kind of control method based on above-mentioned multiphase Multiple coil traction drive, packet
Include following steps:
S101) sub-control unit is acquired and controls to the data of polyphase inverter module, and main control unit acquires institute in real time
The data of sub-control unit, and the data of the comprehensive sub-control unit are stated, judge whether to need to match the winding currently put into
Set adjustment；
S102) if main control unit judgement does not need existing multiple windings currently and supplies multiphase multiwinding machine
When electric, the investment winding and polyphase inverter module can be reduced, and select that the polyphase inverter module efficiency highest can be made
Winding combination mode investment, to improve the efficiency of the multiphase Multiple coil traction drive；
S103) if main control unit judgement does not need to carry out the winding currently put into configuration adjustment, keep current
State.
Preferably, the method also includes following steps:
When the winding hair that the sub-control unit detects certain phase of some polyphase inverter module or is connected with this
Fault detection signal is transmitted to the main control unit by raw failure, the sub-control unit, and the main control unit passes through the sub-control
Unit controls that the polyphase inverter module is out of service, and controls the winding and polyphase inverter module of other normal works, institute
Multiphase Multiple coil traction drive is stated to work in case of a fault and reduce Power operation.
Preferably, the method also includes following steps:
When the winding hair that the sub-control unit detects certain phase of some polyphase inverter module or is connected with this
Fault detection signal is transmitted to the main control unit by raw failure, the sub-control unit, and the main control unit passes through the sub-control
Unit control the polyphase inverter module this is mutually out of service, and control the winding and polyphase inverter mould of other normal works
Block, the multiphase Multiple coil traction drive work in case of a fault and reduce Power operation.
Preferably, the method also includes following steps:
When the winding hair that the sub-control unit detects certain phase of some polyphase inverter module or is connected with this
Fault detection signal is transmitted to the main control unit by raw failure, the sub-control unit, and the main control unit passes through the sub-control
Unit control the polyphase inverter module this is mutually out of service, and control the winding and polyphase inverter of other normal works
Module, the multiphase Multiple coil traction drive work in case of a fault and according to multiphase multiwinding machine phase shortage controls
System continues to run.
By implementing the technical solution of the multiphase Multiple coil traction drive that aforementioned present invention provides and its control method,
It has the following beneficial effects:
(1) the present invention is based on multiphase Multiple coil Traction Drive structure, the excellent properties of low-power device can be made full use of,
Realize that low-power device drives high-power system, while the switching frequency of low-power device can also increase, to realize traction
Transmission control performance is substantially improved；Using multiphase multiwinding machine, minimum subharmonic current, harmonic wave magnetic are improved from ontology
The number of kinetic potential and harmonic wave torque pulsation can reduce running noises and the mechanical oscillation of traction drive；
(2) the present invention is based on multiphase Multiple coil drive mechanisms, can select suitable motor according to different operating conditions
Winding and converter module unit put into operation, overcome existing three-phase traction system efficiency under operating condition complicated and changeable
Low technical problem；
(3) the present invention is based on polyphase windings structures, when certain phases of motor either current transformer break down, Ke Yili
With the control of other phases to continue that the normal work of motor is kept to improve to realize the fault-tolerant operation of traction drive
The reliability of system, and can choose there are many fault-tolerant operation mode.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is a kind of attachment structure schematic diagram of specific embodiment of multiphase Multiple coil traction drive of the present invention；
Fig. 2 is a kind of system structure composition schematic diagram of specific embodiment of multiphase Multiple coil traction drive of the present invention；
Fig. 3 is a kind of control configuration diagram of specific embodiment of multiphase Multiple coil traction drive of the present invention；
Fig. 4 is a kind of signal of specific embodiment faults-tolerant control mode one of multiphase Multiple coil traction drive of the present invention
Figure；
Fig. 5 is a kind of signal of specific embodiment faults-tolerant control mode two of multiphase Multiple coil traction drive of the present invention
Figure；
Fig. 6 is a kind of signal of specific embodiment faults-tolerant control mode three of multiphase Multiple coil traction drive of the present invention
Figure；
Fig. 7 is a kind of program flow diagram of specific embodiment of multiphase Multiple coil traction drive control method of the present invention；
In figure: 1- main control unit, 2- sub-control unit, 3- polyphase inverter module, 4- multiphase multiwinding machine, 5- bridge arm,
6- winding, 21- the first sub-control unit, 22- the second sub-control unit, 23- third sub-control unit, 2N- N sub-control unit, 31- first
Polyphase inverter module, 32- the second polyphase inverter module, 33- third polyphase inverter module, 3N- N polyphase inverter mould
Block.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is only
It is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in attached drawing 1 to attached drawing 7, the tool of multiphase Multiple coil traction drive of the present invention and its control method is given
Body embodiment, the present invention will be further explained below with reference to the attached drawings and specific examples.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of specific embodiment of multiphase Multiple coil traction drive, comprising:
The number of phases is M, and every phase includes the multiphase multiwinding machine 4 of N number of winding 6, M >=3, N >=2；
N number of polyphase inverter module 3, polyphase inverter module 3 include M phase bridge arm 5 parallel with one another, and every phase bridge arm 5 is
The upper switch pipe and lower switch pipe being one another in series including a pair；The midpoint of every phase bridge arm 5 is (i.e. between upper switch pipe and lower switch pipe
Tie point) be connected with a winding 6 in 4 one phase of multiphase multiwinding machine；Every phase winding 6 draws N number of connecting terminal,
And it is independently driven by N number of polyphase inverter module 3；
N number of sub-control unit 2, each sub-control unit 2 are connected with a polyphase inverter module 3；
Main control unit 1, main control unit 1 are connected with N number of sub-control unit 2.
The number of phases M of multiphase multiwinding machine 4 can be taken as the positive integer more than or equal to 3, and multiphase as shown in Fig. 2 is more
The number of phases M of winding electric machine 4 is 5.Every phase winding 6 draws a terminals difference, in the present embodiment 1, every phase with ordinary motor
Winding 6 can draw N number of connecting terminal, and be driven by N number of polyphase inverter module 3 is independent, the power of polyphase inverter module 3
Mating with winding 6, N can be taken as the positive integer more than or equal to 2, every phase of multiphase multiwinding machine 4 as shown in Fig. 2 around
6 quantity of group are 3.Wherein, N number of winding 6 is configurable to that power is consistent or power is inconsistent in same phase, with meet multiphase mostly around
Demand of the group motor 4 under different operating conditions.In the embodiment shown in Figure 2, sub-control unit 2 include the first sub-control unit 21,
Second sub-control unit 22 and third sub-control unit 23, polyphase inverter module 3 include the first polyphase inverter module more than 31, second
Phase converter module 32 and the 3rd polyphase inverter module 33.
Data between main control unit 1 and sub-control unit 2 are transmitted through that (one kind is based on including case back plate bus, RS485
The communication interface of serial ports), CAN (Controller Area Network, the abbreviation of controller local area network) bus or Ethernet
Data communication mode inside is realized.
As shown in Fig. 3, on the framework of control system, including a main control unit 1 and multiple and polyphase inverter mould
Block 3 (in figure polyphase inverter module 3 include the first polyphase inverter module 31, the second polyphase inverter module 32 ..., N it is more
Phase converter module 3N) (sub-control unit 2 includes the first sub-control unit 21, the second sub-control list to the corresponding sub-control unit 2 of quantity in figure
First 22 ..., N sub-control unit 2N).Main control unit 1 issues control instruction to sub-control unit 2, and fed back according to sub-control unit 2
Data optimize configuration to the working condition of sub-control unit 2 and polyphase inverter module 3.Sub-control unit 2 is to polyphase inverter
The data of module 3 are acquired and control.
Since the power moment of multiphase Multiple coil traction drive is changing, multiphase Multiple coil can be led
Draw transmission system and optimizes configuration.Main control unit 1 acquires the data of sub-control unit 2, and the number of comprehensive sub-control unit 2 in real time
According to judging whether to need to optimize configuration to the winding 6 currently put into.If not needing existing multiple windings 6 currently to more
When phase multiwinding machine 4 is powered, it is possible to reduce investment winding 6 and polyphase inverter module 3, and select that multiphase converter can be made
Highest 6 integrated mode of the winding investment of 3 efficiency of device module, to improve the efficiency of multiphase Multiple coil traction drive.Such as: when
When the output power of multiphase Multiple coil traction drive reduces, can actively switch off a few set windings 6 therein, by every set around
Come on the current convergence to the winding 6 of minority work of 6 dispersion of group, so as to improve current harmonics and reduces polyphase inverter module 3
Loss, further increase the operational efficiency of system.
N number of winding 6 of multiphase multiwinding machine 4 by independent N number of M phase converter module drive, if multiphase mostly around
The winding 6 or certain of polyphase inverter module 3 of group motor 4 mutually break down, and main control unit 1 still can control other normal
Winding 6 and polyphase inverter module 3 continue to run multiphase Multiple coil traction drive in case of a fault, thus
Improve the reliability and fault-tolerant ability of multiphase Multiple coil traction drive.
In the present embodiment, after failure occurs, multiphase Multiple coil traction drive can use following Three models
It continues to run.
Mode one: when some polyphase inverter module 3 certain mutually or the winding 6 that is connected with this breaks down, master control list
Member 1 by sub-control unit 2 control the polyphase inverter module 3 it is out of service, the polyphase inverter module 3 and be attached thereto around
Connection between group 6 disconnects.And the winding 6 and polyphase inverter module 3 of other normal works are controlled, the traction of multiphase Multiple coil passes
Dynamic system works in case of a fault and reduces Power operation, and the control method of multiphase multiwinding machine 4 remains as at this time
Method before failure generation, only volume operation need to drop in power after failure.With attached 5 phase, 3 winding traction drive shown in Fig. 2
For, it is assumed that the second phase in the first polyphase inverter module 31 or the winding 6 being attached thereto break down, then control is entire
First polyphase inverter module 31 is out of service, between entire first polyphase inverter module 31 and the winding 6 being attached thereto
Connection disconnects, and the traction drive connecting structure for electrical equipment obtained at this time is as shown in Fig. 4.
Mode two: when some polyphase inverter module 3 certain mutually or the winding 6 that is connected with this breaks down, master control list
Member 1 controls mutually out of service, the phase bridge of the polyphase inverter module of the polyphase inverter module 3 by sub-control unit 2
Connection between arm 5 and the winding 6 being attached thereto disconnects.And control the winding 6 and polyphase inverter module of other normal works
3, multiphase Multiple coil traction drive works in case of a fault and reduces Power operation.Multiphase multiwinding machine at this time
4 control strategy needs adjust accordingly, and power due to only disconnecting a winding 6, the output power phase of traction drive
Mode one is declined less.By taking attached 5 phase, 3 winding traction drive shown in Fig. 2 as an example, it is assumed that the first polyphase inverter mould
The second phase in block 31 or the winding 6 being attached thereto break down, and only control the second phase of the first polyphase inverter module 31
Out of service, the connection between the second phase bridge arm 5 of the first polyphase inverter module 31 and the winding 6 being attached thereto disconnects, this
When obtained traction drive connecting structure for electrical equipment it is as shown in Fig. 5.
Mode three: when some polyphase inverter module 3 certain mutually or the winding 6 that is connected with this breaks down, master control list
Member 1 by sub-control unit 2 control all polyphase inverter modules 3 this is mutually out of service, all polyphase inverter modules 3 this
Connection between phase bridge arm 5 and the winding 6 being attached thereto disconnects, i.e., the whole phase of multiphase multiwinding machine 4 corresponding with this around
Group 6 disconnects.And the winding 6 and polyphase inverter module 3 of other normal works are controlled, multiphase Multiple coil traction drive is in event
It works in the case of barrier and is continued to run according to the control of 4 phase shortage of multiphase multiwinding machine.It is led with attached 5 phase, 3 winding shown in Fig. 2
For drawing transmission system, it is assumed that the second phase in the first polyphase inverter module 31 or the winding 6 being attached thereto break down,
Then controlling three polyphase inverter modules 3, (i.e. the first polyphase inverter module 31, the second polyphase inverter module 32 and third are more
Phase converter module 33) the second phase it is all out of service, the first polyphase inverter module 31,32 and of the second polyphase inverter module
Connection between second phase bridge arm 5 of third polyphase inverter module 33 and the winding 6 being attached thereto disconnects, and obtains at this time
Traction drive connecting structure for electrical equipment is as shown in Fig. 6.
The multiphase Multiple coil traction drive technical solution of the present embodiment description is using multiphase multiwinding machine 4 and corresponds to
Polyphase inverter module 3, the advantages of having merged multiwinding machine and polyphase machine trailer system, not only increase system can
By property, the operational efficiency of traction drive can also be improved, reduces torque pulsation and noise.
Embodiment 2
As shown in Fig. 7, a kind of based on the specific of the control method of multiphase Multiple coil traction drive described in embodiment 1
Embodiment, comprising the following steps:
S101) sub-control unit 2 is acquired and controls to the data of polyphase inverter module 3, and main control unit 1 acquires in real time
The data of sub-control unit 2, and the data of comprehensive sub-control unit 2, judge whether to need to carry out configuration tune to the winding 6 currently put into
It is whole；
S102) if main control unit 1 judges that not needing existing multiple windings 6 currently supplies multiphase multiwinding machine 4
When electric, it is possible to reduce investment winding 6 and polyphase inverter module 3, and select 3 efficiency of polyphase inverter module can be made highest around
Group 6 integrated modes investment, to improve the efficiency of multiphase Multiple coil traction drive；
S103) if the judgement of main control unit 1 does not need to carry out configuration adjustment to the winding 6 currently put into, current shape is kept
State.
Multiphase Multiple coil traction drive control method still further comprises following steps:
When event occurs for the winding 6 that sub-control unit 1 detects certain phase of some polyphase inverter module 3 or is connected with this
Fault detection signal is transmitted to main control unit 1 by barrier, sub-control unit 2, and main control unit 1 controls the multiphase by sub-control unit 2 and becomes
It is out of service to flow device module 3, and controls the winding 6 and polyphase inverter module 3 of other normal works, the traction of multiphase Multiple coil passes
Dynamic system works in case of a fault and reduces Power operation.
Multiphase Multiple coil traction drive control method still further comprises following steps:
When event occurs for the winding 6 that sub-control unit 1 detects certain phase of some polyphase inverter module 3 or is connected with this
Fault detection signal is transmitted to main control unit 1 by barrier, sub-control unit 2, and main control unit 1 controls the multiphase by sub-control unit 2 and becomes
This of stream device module 3 is mutually out of service, and controls the winding 6 and polyphase inverter module 3 of other normal works, multiphase Multiple coil
Traction drive works in case of a fault and reduces Power operation.
Multiphase Multiple coil traction drive control method still further comprises following steps:
When event occurs for the winding 6 that sub-control unit 1 detects certain phase of some polyphase inverter module 3 or is connected with this
Fault detection signal is transmitted to main control unit 1 by barrier, sub-control unit 2, and main control unit 1 controls all multiphases by sub-control unit 2
This of converter module 3 is mutually out of service, and controls the winding 6 and polyphase inverter module 3 of other normal works, multiphase mostly around
Group traction drive works in case of a fault and continues to run according to the control of 4 phase shortage of multiphase multiwinding machine.
By implementing the multiphase Multiple coil traction drive of specific embodiment of the invention description and its skill of control method
Art scheme can have the following technical effects:
(1) it is more to be based on multiphase for the multiphase Multiple coil traction drive of specific embodiment of the invention description and its control method
Winding Traction Drive structure can make full use of the excellent properties of low-power device, realize that low-power device drives high-power system
System, while the switching frequency of low-power device can also increase, to realize being substantially improved for Traction Drive control performance；Using
Multiphase multiwinding machine improves the number of minimum subharmonic current, harmonic wave magnetomotive force and harmonic wave torque pulsation from ontology, can
To reduce running noises and the mechanical oscillation of traction drive；
(2) it is more to be based on multiphase for the multiphase Multiple coil traction drive of specific embodiment of the invention description and its control method
The drive mechanism of winding can select suitable machine winding and converter module unit to put into according to different operating conditions
Operation overcomes existing three-phase traction system under operating condition complicated and changeable the technical issues of low efficiency；
(3) specific embodiment of the invention description multiphase Multiple coil traction drive and its control method be based on multiphase around
Group structure can use the control of other phases when certain phases of motor either current transformer break down to continue to keep electricity
The normal work of machine improves the reliability of system, and there are many fault-tolerant to realize the fault-tolerant operation of traction drive
Operational mode can choose.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention is disclosed as above with preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from Spirit Essence of the invention and technical solution, all using in the methods and techniques of the disclosure above
Appearance makes many possible changes and modifications or equivalent example modified to equivalent change to technical solution of the present invention.Therefore,
Anything that does not depart from the technical scheme of the invention are made to the above embodiment any simple according to the technical essence of the invention
Modification, equivalent replacement, equivalence changes and modification still fall within the range of technical solution of the present invention protection.
Claims (12)
1. a kind of multiphase Multiple coil traction drive characterized by comprising
The number of phases is M, and every phase includes the multiphase multiwinding machine (4) of N number of winding (6), M >=3, N >=2；
N number of polyphase inverter module (3), the polyphase inverter module (3) include M phase bridge arm parallel with one another (5), every phase bridge
The midpoint of arm (5) is connected with a winding (6) in (4) one phase of multiphase multiwinding machine；Every phase winding (6) is drawn
N number of connecting terminal, and independently driven by N number of polyphase inverter module (3)；
N number of sub-control unit (2), each sub-control unit (2) are connected with a polyphase inverter module (3)；
Main control unit (1), the main control unit (1) are connected with N number of sub-control unit (2).
2. multiphase Multiple coil traction drive according to claim 1, it is characterised in that: N number of winding (6) in same phase
It is configured to that power is consistent or power is inconsistent, to meet the needs of multiphase multiwinding machine (4) is under different operating conditions.
3. multiphase Multiple coil traction drive according to claim 2, it is characterised in that: the main control unit (1) with
Data between sub-control unit (2) are transmitted through the data communication including core bus, RS485, CAN bus or Ethernet
Mode is realized.
4. multiphase Multiple coil traction drive according to any one of claims 1 to 3, it is characterised in that: the master control
Unit (1) Xiang Suoshu sub-control unit (2) issues control instruction, and the data fed back according to the sub-control unit (2), to described point
The working condition of control unit (2) and polyphase inverter module (3) optimizes configuration；The sub-control unit (2) is to the multiphase
The data of converter module (3) are acquired and control.
5. multiphase Multiple coil traction drive according to claim 4, it is characterised in that: the main control unit (1) is real
When acquire the data of the sub-control unit (2), and the data of the comprehensive sub-control unit (2), judge whether to need to throw current
The winding (6) entered optimizes configuration；If not needing existing multiple windings (6) currently to the multiphase multiwinding machine (4)
When being powered, the investment winding (6) and polyphase inverter module (3) can be reduced, and select that the polyphase inverter can be made
Module (3) efficiency highest winding (6) integrated mode investment, to improve the efficiency of multiphase Multiple coil traction drive.
6. according to claim 1, the described in any item multiphase Multiple coil traction drives in 2,3 or 5, it is characterised in that: when certain
Certain phase of a polyphase inverter module (3) or the winding (6) being connected with this break down, and the main control unit (1) is logical
It crosses the sub-control unit (2) and controls that the polyphase inverter module (3) is out of service, and control the winding (6) of other normal works
With polyphase inverter module (3), the multiphase Multiple coil traction drive works in case of a fault and reduces power
Operation.
7. according to claim 1, the described in any item multiphase Multiple coil traction drives in 2,3 or 5, it is characterised in that: when certain
Certain phase of a polyphase inverter module (3) or the winding (6) being connected with this break down, and the main control unit (1) is logical
Cross the sub-control unit (2) control the polyphase inverter module (3) this is mutually out of service, and control other normal works around
Group (6) and polyphase inverter module (3), the multiphase Multiple coil traction drive work on and reduce in case of a fault
Power operation.
8. according to claim 1, the described in any item multiphase Multiple coil traction drives in 2,3 or 5, it is characterised in that: when certain
Certain phase of a polyphase inverter module (3) or the winding (6) being connected with this break down, and the main control unit (1) is logical
Cross the sub-control unit (2) control all polyphase inverter modules (3) this is mutually out of service, and control other normal works
Winding (6) and polyphase inverter module (3), the multiphase Multiple coil traction drive work in case of a fault and by
It is continued to run according to the control of multiphase multiwinding machine (4) phase shortage.
9. a kind of control method based on any one of claim 1 to the 8 multiphase Multiple coil traction drive, feature exist
In, comprising the following steps:
S101) sub-control unit (2) is acquired and controls to the data of polyphase inverter module (3), and main control unit (1) is adopted in real time
Collect the data of the sub-control unit (2), and the data of the comprehensive sub-control unit (2), judges whether to need to currently putting into
Winding (6) carries out configuration adjustment；
S102) if the main control unit (1) judgement does not need existing multiple windings (6) currently to multiphase multiwinding machine (4)
When power supply, the investment winding (6) and polyphase inverter module (3) can be reduced, and select that the polyphase inverter module can be made
(3) the highest winding of efficiency (6) integrated mode is put into, to improve the efficiency of the multiphase Multiple coil traction drive；
S103) if the main control unit (1) judgement does not need to carry out the winding (6) currently put into configuration adjustment, holding is worked as
Preceding state.
10. multiphase Multiple coil traction drive control method according to claim 9, which is characterized in that the method
It is further comprising the steps of:
When the winding that the sub-control unit (2) detects certain phase of some polyphase inverter module (3) or is connected with this
(6) it breaks down, fault detection signal is transmitted to the main control unit (1), the main control unit by the sub-control unit (2)
(1) control that the polyphase inverter module (3) is out of service by the sub-control unit (2), and control other normal works around
Group (6) and polyphase inverter module (3), the multiphase Multiple coil traction drive work on and reduce in case of a fault
Power operation.
11. multiphase Multiple coil traction drive control method according to claim 9, which is characterized in that the method
It is further comprising the steps of:
When the winding that the sub-control unit (2) detects certain phase of some polyphase inverter module (3) or is connected with this
(6) it breaks down, fault detection signal is transmitted to the main control unit (1), the main control unit by the sub-control unit (2)
(1) by the sub-control unit (2) control the polyphase inverter module (3) this is mutually out of service, and control other normal works
The winding (6) and polyphase inverter module (3) of work, the multiphase Multiple coil traction drive work in case of a fault
And reduce Power operation.
12. multiphase Multiple coil traction drive control method according to claim 9, which is characterized in that the method
It is further comprising the steps of:
When the winding that the sub-control unit (2) detects certain phase of some polyphase inverter module (3) or is connected with this
(6) it breaks down, fault detection signal is transmitted to the main control unit (1), the main control unit by the sub-control unit (2)
(1) by the sub-control unit (2) control all polyphase inverter modules (3) this is mutually out of service, and control it is other normally
The winding (6) and polyphase inverter module (3) of work, the multiphase Multiple coil traction drive continue work in case of a fault
Make and is continued to run according to the control of multiphase multiwinding machine (4) phase shortage.
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