CN109301965A - A kind of electric motor and controller method that electromagnetic structure is variable - Google Patents
A kind of electric motor and controller method that electromagnetic structure is variable Download PDFInfo
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- CN109301965A CN109301965A CN201811252602.0A CN201811252602A CN109301965A CN 109301965 A CN109301965 A CN 109301965A CN 201811252602 A CN201811252602 A CN 201811252602A CN 109301965 A CN109301965 A CN 109301965A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/188—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor windings are switched from series to parallel or vice versa to control speed or torque
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The present invention relates to a kind of electric motor and controller methods that electromagnetic structure can be changed, in particular to a kind of change the number of turns electric system topological structure, the structure can switch the number of turns according to design, lower motor operation is run suitable for various working alternation, raising system speed adjustable range, available one simultaneously for remaining work, belongs to motor construction technical field.
Description
Technical field
The present invention relates to a kind of electric motor and controller method that electromagnetic structure can be changed, in particular to a kind of change the number of turns department of electrical engineering
System topological structure, the structure can switch the number of turns according to design, be suitable for motor operation under various working alternation is run, improve system
Speed adjustable range, while available one works for a remaining, belongs to motor construction technical field.
Background technique
After conventional motors system topological determines, it is limited to voltage regime, motor operation revolving speed adjusting range is limited；If motor
System have high speed, low torque operation demand when generally realized by reducing the number of turns, torque when such drawback will affect low speed
Output or higher current density realize torque and reduce operational reliability.
Summary of the invention
Technology of the invention solves the problems, such as: overcome the deficiencies in the prior art, proposes a kind of motor that electromagnetic structure is variable
And its control method, the structure can switch the number of turns according to design, are suitable for a variety of typical condition alternations and run lower motor operation, mention
High system speed adjustable range；Available one simultaneously for remaining work.
The technical solution of the invention is as follows:
A kind of variable motor of electromagnetic structure, the stator in the motor includes stator core 1, coiling 2 and pinboard 3；
Coiling 2 includes several set m phase windings, and the leading-out terminal of every set m phase winding is connect with pinboard 3, and m is natural number, m
It is preferred that three, five, seven, when m is three, every set three-phase windings leading-out terminal is respectively AX, BY, CZ；
For the end X band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end X in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
Realize the connection of electricity in the end A in the end X and other three-phase windings in three-phase windings；
For the end Y band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end Y in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
Realize the connection of electricity in the end B in the end Y and other three-phase windings in three-phase windings；
For the end Z band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end Z in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
The C-terminal in the end Z and other three-phase windings in three-phase windings realizes the connection of electricity；
The end A in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the connection of electricity is realized at the end A in the end A and other three-phase windings in the set three-phase windings, the end A in power positive end；
The end B in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the connection of electricity is realized at the end B in the end B and other three-phase windings in the set three-phase windings, the end B in power positive end；
C-terminal in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the C-terminal in C-terminal and other three-phase windings in the set three-phase windings, the C-terminal in power positive end realize the connection of electricity；
A kind of control method for the motor that electromagnetic structure is variable, the operating mode of the motor includes that every set m phase winding is independent
Work, at least two sets of m phase winding tandem workings and at least two sets of m phase winding tandem workings；
Method and step when wherein every set m phase winding (by taking first set m phase winding as an example) works independently includes:
First switch and third switch in first set m phase winding are closed, and the second switch in first set m phase winding is beaten
It opens, the first switch, second switch, third switch in other sets m phase winding are opened；
Side when at least two sets of m phase winding series connection (by taking first set m phase winding and second set of m phase winding series connection as an example) work
Method step includes:
The first switch of first set m phase winding is opened, the second switch closure of first set m phase winding, first set m phase winding
Third close the switch, the first switch closure of second set of m phase winding, the second switch of second set m phase winding is closed, second set
The third of m phase winding, which switchs, to be opened.
Side when at least two sets of m phase windings parallel connection (by taking first set m phase winding and second set of m phase winding are in parallel as an example) work
Method step includes:
The first switch of first set m phase winding is closed, and the second switch of first set m phase winding is opened, first set m phase winding
Third close the switch, the first switch closure of second set of m phase winding, the second switch opening of second set m phase winding, second set
The third of m phase winding closes the switch.
The invention has the following beneficial effects:
(1) the variable motor of electromagnetic structure of the invention realizes the switching of machine winding using pinboard, using single
Switch completes the change of motor operating state；Pinboard is increased before motor end, each phase winding of winding is connect with pinboard,
Realize that above-mentioned switch motor structure carries out adaptive improvement, winding overhang devises pinboard.Pinboard accesses every road winding；
(2) the variable motor of electromagnetic structure of the invention uses Multiple coil form, and motor work itself can be improved
Reliability can carry out redundancy switching；
(3) the variable motor of electromagnetic structure of the invention, can voluntarily switch over according to self-operating state, to external control
It makes single, is simply easily achieved；
(4) present invention can effectively expande same money motor application range after being converted into engineer application, improve system reliability.Boat
Its electromechanical servo techniques application field project, electromechanical servo expand field project.After conventional motors system topological determines, by
It is limited to voltage regime, motor operation revolving speed adjusting range is limited；If electric system generally leads to when having high speed, low torque operation demand
Reduction the number of turns is crossed to realize, torque output or higher current density realize torque when such drawback will affect low speed
And reduce operational reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of stator of the invention；
Fig. 2 is the connection schematic diagram of winding of the invention.
Specific embodiment
A kind of variable motor of electromagnetic structure, the stator in the motor includes stator core 1, coiling 2 and pinboard 3；
Coiling 2 includes several set m phase windings, and the leading-out terminal of every set m phase winding is connect with pinboard 3, and m is natural number, m
It is preferred that three, five, seven, when m is three, every set three-phase windings leading-out terminal is respectively AX, BY, CZ；
For the end X band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end X in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
Realize the connection of electricity in the end A in the end X and other three-phase windings in three-phase windings；
For the end Y band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end Y in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
Realize the connection of electricity in the end B in the end Y and other three-phase windings in three-phase windings；
For the end Z band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively that first switch and second is opened
It closes, wherein when first switch is closed, the end Z in the set three-phase windings is connect with power supply negative terminal；When second switch is closed, the set
The C-terminal in the end Z and other three-phase windings in three-phase windings realizes the connection of electricity；
The end A in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the connection of electricity is realized at the end A in the end A and other three-phase windings in the set three-phase windings, the end A in power positive end；
The end B in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the connection of electricity is realized at the end B in the end B and other three-phase windings in the set three-phase windings, the end B in power positive end；
C-terminal in every set three-phase windings leading-out terminal defines the switch for third switch, when third switch closes with switch
When conjunction, the C-terminal in C-terminal and other three-phase windings in the set three-phase windings, the C-terminal in power positive end realize the connection of electricity；
A kind of control method for the motor that electromagnetic structure is variable, the operating mode of the motor includes that every set m phase winding is independent
Work, at least two sets of m phase winding tandem workings and at least two sets of m phase winding tandem workings；
Method and step when wherein every set m phase winding (by taking first set m phase winding as an example) works independently includes:
First switch and third switch in first set m phase winding are closed, and the second switch in first set m phase winding is beaten
It opens, the first switch, second switch, third switch in other sets m phase winding are opened；
Side when at least two sets of m phase winding series connection (by taking first set m phase winding and second set of m phase winding series connection as an example) work
Method step includes:
The first switch of first set m phase winding is opened, the second switch closure of first set m phase winding, first set m phase winding
Third close the switch, the first switch closure of second set of m phase winding, the second switch of second set m phase winding is closed, second set
The third of m phase winding, which switchs, to be opened.
Side when at least two sets of m phase windings parallel connection (by taking first set m phase winding and second set of m phase winding are in parallel as an example) work
Method step includes:
The first switch of first set m phase winding is closed, and the second switch of first set m phase winding is opened, first set m phase winding
Third close the switch, the first switch closure of second set of m phase winding, the second switch opening of second set m phase winding, second set
The third of m phase winding closes the switch.
As shown in Figure 1, increasing K1~K5 controllable switch between A, B, C double winding and control driving.Recognize operating condition
After demand, the transformation of the number of turns is realized by switching mode switching, and then change the method for operation.
Realize that above-mentioned switch motor structure carries out adaptive improvement, winding overhang devises pinboard, as shown in Figure 2.Turn
Fishplate bar accesses every road winding, when motor operation, switchs changeable mode and is divided into four:
1) single set winding work (A1B1C1) when if K1, K4 are closed；
2) single set winding work (A2B2C2) when if K2, K5 are closed；
Above two switching mode is suitable for one for a remaining, simultaneously as the number of turns, which reduces, is suitable for the operation of high speed low torque
Operating condition；
3) if K1, K3, K5 are closed, double winding tandem working；
4) if K1, K2, K4, K5 are closed, double winding parallel operation.
Above two switching mode can switch according to the actual selection of driving control system, improve simultaneously as the number of turns is opposite
Suitable for low speed high torque operating condition.
Switching circuit board contained by this motor can with real-time detection voltage, electric current, temperature, and in this, as mode gating
Foundation: it if the temperature of motor is excessive or the electric current of motor is excessive, needs to be switched to winding parallel mode, low-speed big is provided；
If the back-emf and busbar voltage by calculating motor are close, need to be switched to windings in series mode, improves motor speed；If electric
The electric current of machine, temperature be not high, then is worked using single winding.
Embodiment
As shown in Figure 1, the motor that a kind of electromagnetic structure is variable, the stator in the motor includes stator core 1,2 and of coiling
Pinboard 3；
As shown in Fig. 2, coiling 2 includes two sets of three-phase windings, two sets of three-phase windings are respectively first set winding and second set
Winding, the appearance end of first set winding are A1X1, B1Y1, C1Z1；The appearance end of second set of winding is A2X2, B2Y2, C2Z2；Two
The appearance end of set three-phase windings is connect with pinboard 3；
For the appearance end end X1 band in first set winding there are two switch, two switches are respectively that first switch k4 and second is opened
Close k3, wherein when first switch k4 is closed, the end X1 in first set three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end X1 in first set three-phase windings with the end A2 in second set of three-phase windings；
For the appearance end end Y1 band in first set winding there are two switch, two switches are respectively that first switch k4 and second is opened
Close k3, wherein when first switch k4 is closed, the end Y1 in first set three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end Y1 in first set three-phase windings with the end B2 in second set of three-phase windings；
For the appearance end end Z1 band in first set winding there are two switch, two switches are respectively that first switch k4 and second is opened
Close k3, wherein when first switch k4 is closed, the end Z1 in first set three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end Z1 in first set three-phase windings with the end C2 in second set of three-phase windings；
It is third switch k1 that the end A1 in first set three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k1 closure, the end A1 in first set three-phase windings is realized with the end A2 in second set of three-phase windings, the end A in power positive end
The connection of electricity；
It is third switch k1 that the end B1 in first set three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k1 closure, the end B1 in first set three-phase windings is realized with the end B2 in second set of three-phase windings, the end B in power positive end
The connection of electricity；
It is third switch k1 that the end C1 in first set three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k1 closure, the end C1 in first set three-phase windings is realized with the end C2 in second set of three-phase windings, the C-terminal in power positive end
The connection of electricity；
For the appearance end end X2 band in second set of winding there are two switch, two switches are respectively that first switch k5 and second is opened
Close k3, wherein when first switch k5 is closed, the end X2 in second set of three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end A1 in the end X2 and first set three-phase windings in second set of three-phase windings；
For the appearance end end Y2 band in second set of winding there are two switch, two switches are respectively that first switch k5 and second is opened
Close k3, wherein when first switch k5 is closed, the end Y2 in second set of three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end B1 in the end Y2 and first set three-phase windings in second set of three-phase windings；
For the appearance end end Z2 band in second set of winding there are two switch, two switches are respectively that first switch k5 and second is opened
Close k3, wherein when first switch k5 is closed, the end Z2 in second set of three-phase windings is connect with power supply negative terminal；Second switch k3 is closed
When conjunction, the connection of electricity is realized at the end Z2 in second set of three-phase windings with the end C1 in second set of three-phase windings；
It is third switch k2 that the end A2 in second set of three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k2 closure, the end A2 in second set of three-phase windings and the end A1 in first set three-phase windings, the end A in power positive end are realized
The connection of electricity；
It is third switch k2 that the end B2 in second set of three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k2 closure, the end B2 in second set of three-phase windings and the end B1 in first set three-phase windings, the end B in power positive end are realized
The connection of electricity；
It is third switch k2 that the end C2 in second set of three-phase windings leading-out terminal, which defines the switch with switch, when the third is opened
When closing k2 closure, the end C2 in second set of three-phase windings and the end C1 in first set three-phase windings, the C-terminal in power positive end are realized
The connection of electricity；
A kind of control method for the motor that electromagnetic structure is variable, the operating mode of the motor includes first set three-phase windings list
Solely work, second set of three-phase windings work independently, first set three-phase windings and second set of three-phase windings tandem working and first
Cover three-phase windings and second set of three-phase windings parallel operation；
Control method when first set three-phase windings work independently are as follows: the first switch k4 in first set three-phase windings and
Three switch k1 are closed, and second switch k3 in first set three-phase windings is opened, first switch k5 in second set of three-phase windings,
Second switch k3, third switch k2 are opened；
Control method when second set of three-phase windings works independently are as follows: the first switch k5 in second set of three-phase windings and
Three switch k2 are closed, and second switch k3 in second set of three-phase windings is opened, first switch k4 in first set three-phase windings,
Second switch k3, third switch k1 are opened.
Control method when first set three-phase windings and second set of three-phase windings tandem working are as follows: first set three-phase windings
First switch k4 is opened, the second switch k3 closure of first set three-phase windings, the third switch k1 closure of first set three-phase windings,
The first switch k5 closure of second set of three-phase windings, the second switch k3 closure of second set of three-phase windings, second set of three-phase windings
Third switch k2 open.
Control method when first set three-phase windings and second set of three-phase windings parallel operation are as follows: first set three-phase windings
The second switch k3 of first switch k4 closure, first set three-phase windings is opened, the third switch k1 closure of first set three-phase windings,
The first switch k5 closure of second set of three-phase windings, the second switch k3 of second set of three-phase windings are opened, second set of three-phase windings
Third switch k2 closure.
Claims (10)
1. a kind of variable motor of electromagnetic structure, it is characterised in that: the stator in the motor includes stator core, coiling and switching
Plate；
Coiling includes several set m phase windings, and the leading-out terminal of every set m phase winding is connect with pinboard.
2. a kind of variable motor of electromagnetic structure according to claim 1, it is characterised in that: the number of phases of winding is three, five
Or seven.
3. a kind of variable motor of electromagnetic structure according to claim 2, it is characterised in that: every set three-phase windings leading-out terminal
Respectively AX, BY, CZ, the end the X band in every set three-phase windings leading-out terminal there are two switch, two switches be respectively first switch and
Second switch, wherein when first switch is closed, the end X in the set three-phase windings is connect with power supply negative terminal；Second switch closure
When, the end X in the set three-phase windings is connect with the end A in other three-phase windings；
For the end Y band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively first switch and the second switch,
In, when first switch is closed, the end Y in the set three-phase windings is connect with power supply negative terminal；Second switch be closed when, the set three-phase around
The end Y in group is connect with the end B in other three-phase windings；
For the end Z band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively first switch and the second switch,
In, when first switch is closed, the end Z in the set three-phase windings is connect with power supply negative terminal；Second switch be closed when, the set three-phase around
The end Z in group is connect with the C-terminal in other three-phase windings；
The end A in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
The end A in the set three-phase windings is connect with the end A in other three-phase windings, the end A in power positive end；
The end B in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
The end B in the set three-phase windings is connect with the end B in other three-phase windings, the end B in power positive end；
C-terminal in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
C-terminal in the set three-phase windings is connect with the C-terminal in other three-phase windings, the C-terminal in power positive end.
4. a kind of control method of the variable motor of any electromagnetic structure of claim 1-3, it is characterised in that: the motor
Operating mode include every set m phase winding work independently, at least two sets of m phase winding tandem workings and at least two sets of m phase winding strings
Join work.
5. a kind of control method of the variable motor of electromagnetic structure according to claim 4, it is characterised in that: first set m
Method and step when phase winding works independently includes:
First switch and third switch in first set m phase winding are closed, and the second switch in first set m phase winding is opened,
First switch, second switch, third switch in other sets m phase winding are opened.
6. a kind of control method of the variable motor of electromagnetic structure according to claim 4, it is characterised in that: first set m
Method and step when phase winding and second set of m phase winding tandem working includes:
The first switch of first set m phase winding is opened, the second switch closure of first set m phase winding, and the of first set m phase winding
Three close the switch, the first switch closure of second set of m phase winding, the second switch closure of second set of m phase winding, second set of m phase
The third of winding, which switchs, to be opened.
7. a kind of control method of the variable motor of electromagnetic structure according to claim 4, it is characterised in that: first set m
Method and step when phase winding and second set of m phase winding parallel operation includes:
The first switch of first set m phase winding is closed, and the second switch of first set m phase winding is opened, and the of first set m phase winding
Three close the switch, and the first switch closure of second set of m phase winding, the second switch of second set of m phase winding is opened, second set of m phase
The third of winding closes the switch.
8. a kind of motor stator, it is characterised in that: the motor stator includes stator core, coiling and pinboard；If coiling includes
Dry set m phase winding, the leading-out terminal of every set m phase winding are connect with pinboard.
9. a kind of motor stator according to claim 8, it is characterised in that: the number of phases of winding is three, every set three-phase windings
Leading-out terminal is respectively AX, BY, CZ；
For the end X band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively first switch and the second switch,
In, when first switch is closed, the end X in the set three-phase windings is connect with power supply negative terminal；Second switch be closed when, the set three-phase around
The end X in group is connect with the end A in other three-phase windings；
For the end Y band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively first switch and the second switch,
In, when first switch is closed, the end Y in the set three-phase windings is connect with power supply negative terminal；Second switch be closed when, the set three-phase around
The end Y in group is connect with the end B in other three-phase windings；
For the end Z band in every set three-phase windings leading-out terminal there are two switch, two switches are respectively first switch and the second switch,
In, when first switch is closed, the end Z in the set three-phase windings is connect with power supply negative terminal；Second switch be closed when, the set three-phase around
The end Z in group is connect with the C-terminal in other three-phase windings；
The end A in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
The end A in the set three-phase windings is connect with the end A in other three-phase windings, the end A in power positive end；
The end B in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
The end B in the set three-phase windings is connect with the end B in other three-phase windings, the end B in power positive end；
C-terminal in every set three-phase windings leading-out terminal defines the switch with switch and switchs for third, when the third closes the switch,
C-terminal in the set three-phase windings is connect with the C-terminal in other three-phase windings, the C-terminal in power positive end.
10. a kind of motor stator according to claim 8, it is characterised in that: the operating mode of the stator includes every set m phase
Winding works independently, at least two sets of m phase winding tandem workings and at least two sets of m phase winding tandem workings；
Method and step when first set m phase winding works independently includes:
First switch and third switch in first set m phase winding are closed, and the second switch in first set m phase winding is opened,
First switch, second switch, third switch in other sets m phase winding are opened.
Method and step when first set m phase winding and second set of m phase winding tandem working includes:
The first switch of first set m phase winding is opened, the second switch closure of first set m phase winding, and the of first set m phase winding
Three close the switch, the first switch closure of second set of m phase winding, the second switch closure of second set of m phase winding, second set of m phase
The third of winding, which switchs, to be opened.
Method and step when first set m phase winding and second set of m phase winding parallel operation includes:
The first switch of first set m phase winding is closed, and the second switch of first set m phase winding is opened, and the of first set m phase winding
Three close the switch, and the first switch closure of second set of m phase winding, the second switch of second set of m phase winding is opened, second set of m phase
The third of winding closes the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252602.0A CN109301965A (en) | 2018-10-25 | 2018-10-25 | A kind of electric motor and controller method that electromagnetic structure is variable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811252602.0A CN109301965A (en) | 2018-10-25 | 2018-10-25 | A kind of electric motor and controller method that electromagnetic structure is variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109301965A true CN109301965A (en) | 2019-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112367001A (en) * | 2021-01-13 | 2021-02-12 | 天津民昌科技有限公司 | Contactless variable topology motor system |
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