CN108880158A - The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method - Google Patents
The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method Download PDFInfo
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- CN108880158A CN108880158A CN201810799005.3A CN201810799005A CN108880158A CN 108880158 A CN108880158 A CN 108880158A CN 201810799005 A CN201810799005 A CN 201810799005A CN 108880158 A CN108880158 A CN 108880158A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
- H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/20—Arrangements for starting
-
- 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
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
For the not high problem of electric motor starting and the utilization rate of harmonic exitation, the present invention provides a kind of synchronous motor with discrete orthogonal harmonic winding and the harmonic field orientation brushless excitation method of the motor, belongs to permanent magnet synchronous motor field.The pitch that rotor DC excitation winding F and the induction of rotor harmonic wave winding H, rotor DC excitation winding F are equipped on the rotor of the motor is 1, and the pitch that rotor harmonic wave incudes winding H is 1/3；The stator of motor is also provided with discrete two-phase quadrature harmonics wave winding in addition to three-phase main winding 3, and the pitch of the winding is the 1/3 of three-phase main winding pitch.The method is：The alternation high-frequency current of quadrature in phase is passed to two-phase quadrature harmonics wave winding, and harmonic field oriented control is carried out according to rotor-position, alternation harmonic field is set to incude winding H induced harmonics electromotive force in rotor harmonic wave, and then rotor main field is established through rotary rectifier supply rotor DC excitation winding F, to realize the brush-less electrically exciting of synchronous motor.
Description
Technical field
The present invention relates to a kind of synchronous motor, in particular to a kind of synchronous motor with discrete orthogonal harmonic winding and should
The harmonic field of motor orients brushless excitation method, belongs to permanent magnet synchronous motor field.
Background technique
Permanent magnet synchronous motor due to having the characteristics that energy-efficient, power density is high and brushless control, industry gradually
It is widely used.Especially in some middle low power applications, such as electric car, grid-connected power generation system etc..So
And these advantages of magneto are all built upon on the basis of high performance rare earth permanent-magnetic material.With industry and society
The development of meeting, can constantly increase rare earth resources demand.Nearly ten years, the rise in price of rare earth permanent-magnetic material several times it
More, this can make rare earth resources be increasingly becoming the bottleneck for influencing the development of high-performance permanent magnet motor.Also, permanent magnet synchronous motor itself is also
There are some technical problems, such as：(1) in some specific occasions, need generator in the case where biggish rotational speed difference
Output voltage regulation is controlled, magneto is due to flux control difficulty, it is difficult to reach related request.(2) as motor
When, it since the air-gap field of permanent magnet is not adjustable, not can be carried out weak magnetic control, will limit the rotational speed regulation range of motor.(3)
There are intrinsic location torques for permanent magnet synchronous motor, and eliminating location torque is also more complicated problem.
Electro-magnetic motor is not need to rely on expensive rare earth permanent-magnetic material due to the above reasons, more can be convenient into
Row adjustment of field excitation, can be in numerous applications as the supplement machine of magneto technology.For electro-magnetic motor, brush and cunning
The presence of ring has seriously affected electrical machinery life and performance, realizes that non-brushing electrical excitation is the key that motor can be with reliability service.Specially
Sharp CN103887908A and CN103904856A etc. is proposed by increasing harmonic current in stator winding to realize non-brushing
The method of electrical excitation.But such method is applied to there are problems that the utilization rate of electric motor starting and harmonic exitation not when motor
The problems such as high.
Summary of the invention
For the not high problem of above-mentioned electric motor starting and the utilization rate of harmonic exitation, the present invention provides a kind of with discrete
The synchronous motor of orthogonal harmonic winding and the harmonic field of the motor orient brushless excitation method.
A kind of synchronous motor with discrete orthogonal harmonic winding of the invention is equipped with rotor on the rotor of the motor
DC excitation winding F and rotor harmonic wave incude winding H, and the pitch of rotor DC excitation winding F is 1, and rotor harmonic wave incudes winding H
Pitch be 1/3；The stator 2 of the motor is also provided with discrete two-phase quadrature harmonics wave winding 4 in addition to three-phase main winding 3,
The pitch of the two-phase quadrature harmonics wave winding 4 is the 1/3 of three-phase main winding pitch.
Preferably, the rotor 1 of the motor uses salient-pole structure, and rotor DC excitation winding F is mounted on the main magnetic of rotor
On extremely, it is provided with slot for winding on the center line of rotor main pole, which is divided into two rotors for each main pole and divides tooth, often
A rotor divides tooth to be mounted on rotor harmonic wave induction winding H.
Preferably, the number of stator slots of the motor is 6K times of motor pole number.
A kind of harmonic field orientation brushless excitation method of the synchronous motor with discrete orthogonal harmonic winding, the method
For：
The alternation high-frequency current of quadrature in phase is passed to the two-phase quadrature harmonics wave winding 4, and according to rotor-position
Harmonic field oriented control is carried out, so that alternation harmonic field is incuded winding H induced harmonics electromotive force in rotor harmonic wave, and then through revolving
Turn rectification supply rotor DC excitation winding F and establish rotor main field, to realize the brush-less electrically exciting of synchronous motor.
Preferably, the two-phase quadrature harmonics wave winding 4 is driven using three-phase half-bridge power circuit, makes the two-phase
Quadrature harmonics wave winding 4 is connected with the alternation high-frequency current of quadrature in phase.
Preferably, it is used to drive the three-phase main winding 3 of stator using the power inverter of three-phase half-bridge topology, adopts
With the power inverter of single-phase full bridge topological structure for driving two-phase quadrature harmonics wave winding 4, at the same it is electrodeless using two
The midpoint potential of property capacitor structure is connect with the middle site of two-phase quadrature harmonics wave winding 4, encourages the orthogonal harmonic wave of the two-phase
Magnetic winding 4 is connected with the alternation high-frequency current of quadrature in phase.
Above-mentioned technical characteristic may be combined in various suitable ways or be substituted by equivalent technical characteristic, as long as can reach
To the purpose of the present invention.
The beneficial effects of the present invention are the invention proposes one kind on the basis of particular motor winding construction by humorous
The method of wave Field orientable control realization brush-less electrically exciting.Motor of the invention is to synchronize electricity with discrete orthogonal harmonic winding
Machine, which increases a set of discrete two-phase quadrature harmonics wave winding on existing motor stator, and passes to the friendship of quadrature in phase
Become high-frequency current, and harmonic field oriented control is carried out according to rotor-position, so that it may change impulsive magnetic field spatial position, thus
The directional couple for realizing harmonic exitation magnetic field and rotor induction winding, so that can realize complete coupling in rotor any position
Brush-less electrically exciting power transmission, thus solve the problems, such as motor starting excitation and improve operational process in good excitation control
Ability processed.The present invention does not need separate exciter excitation yet, both can be used for generally driving and use without relying on expensive permanent magnet
The motor excitation on way also can be applied to the generator excitation with power inverter, and solves general exciter and encourage
Motor starting problem when magnetic.
Detailed description of the invention
Fig. 1 is the structural representation of the synchronous motor with discrete orthogonal harmonic winding in the specific embodiment of the invention
Figure；
Fig. 2 is a kind of driving circuit of Fig. 1；
Fig. 3 is the excitation principle schematic diagram of discrete orthogonal harmonic winding；
Fig. 4 is rotating rectifier circuit；
Fig. 5 is another driving circuit of Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Illustrate present embodiment in conjunction with Fig. 1 to Fig. 5, as shown in Figure 1, one kind described in present embodiment is with discrete orthogonal
The synchronous motor of harmonic winding is equipped with rotor DC excitation winding F and rotor harmonic wave induction winding H on the rotor of motor, turns
The pitch of sub- DC excitation winding F is 1, and the pitch that rotor harmonic wave incudes winding H is 1/3；The stator 2 of the motor is in addition to three-phase
Main winding 3, is also provided with discrete two-phase quadrature harmonics wave winding 4, and the pitch of the two-phase quadrature harmonics wave winding 4 is three
The 1/3 of phase main winding pitch.
As shown in Figure 1, the rotor 1 of present embodiment motor uses salient-pole structure, rotor DC excitation winding F, which is mounted on, to be turned
In sub- main pole, it is provided with slot for winding on the center line of rotor main pole, which is divided into two rotors for each main pole
Divide tooth, each rotor divides tooth to be mounted on rotor harmonic wave induction winding H.
In preferred embodiment, the number of stator slots of motor is 6K times of motor pole number.Number of stator slots and motor pole number are score
Slot cooperation, number of stator slots are the integral multiple of the number of phases 6, are matched by reasonable pole phase component, still may be constructed quasi- orthogonal harmonic wave and encourage
Magnetic winding can effectively weaken slot ripples influence although harmonic exitation performance is slightly impacted.
A kind of harmonic field of above-mentioned synchronous motor with discrete orthogonal harmonic winding orients brushless excitation method, is：
The alternation high-frequency current of quadrature in phase is passed to two-phase quadrature harmonics wave winding 4, and is carried out according to rotor-position
Harmonic field oriented control makes alternation harmonic field incude winding H induced harmonics electromotive force in rotor harmonic wave, and then whole through rotating
Stream supply rotor DC excitation winding F establishes rotor main field, to realize the brush-less electrically exciting of synchronous motor, specific works are former
Reason is：
Two-phase high frequency zero-sequence current component is passed in quadrature harmonics wave winding, and two-phase high frequency zero-sequence current phase is just
It hands over, then can form the variable Third Space Harmonic rotating excitation field of amplitude；
When on rotor there are a set of winding section square be 1/3 main pole away from harmonic wave incude winding H when, H as shown in Figure 3 around
Group, alternation Zero-pharse harmonic magnetic field can incude winding induced harmonics electromotive force in harmonic wave, and then supply rotor through rotating rectifier
DC excitation winding F establishes rotor main field, as shown in Figure 4；Since the orientation of harmonic field can be carried out according to rotor-position
Control, it is all harmonic exitation power transfer to rotor harmonic wave to be incuded into winding in any rotor-position.It is not only in office in this way
Power transfer to rotor DC excitation winding F efficiently can be carried out excitation by harmonic field by rotor-position of anticipating, and
Solves the problems, such as effective excitation at motor starting moment, motor can be with load starting.
It, will not rotor again since fundamental wave rotating excitation field is identical as spinner velocity when rotor is rotated with synchronous speed
Induced electromotive force is generated in harmonic winding, and induced electromotive force will not be similarly generated in rotor field coil.And for three times
Harmonic exitation magnetic field, since its spatial position is fixed, thus rotor harmonic winding can be with relative synchronization speed cutting magnetic field, and then produces
Raw revolving electro-motive force, and when harmonic current component is single phase ac ingredient, triple-frequency harmonics magnetic field amplitude makees sinusoidal variations,
Also transformer electromotive force can be generated in rotor harmonic winding.For rotor field coil F, pole span is triple-frequency harmonics magnetic field pole
Away from 2 times, it is same extremely under excitation winding group both sides caused by induced electromotive force size direction it is all the same, thus for whole
A winding group induced electromotive force is cancelled out each other, so triple-frequency harmonics magnetic field will not generate induced electromotive force in excitation winding.
In preferred embodiment, as shown in Fig. 2, using three-phase half-bridge power circuit drive the two-phase quadrature harmonics wave around
Group 4, makes the two-phase quadrature harmonics wave winding 4 be connected with the alternation high-frequency current of quadrature in phase.
In preferred embodiment, as shown in figure 5, using the power inverter of three-phase half-bridge topology for driving stator
Three-phase main winding 3, the power inverter using single-phase full bridge topological structure make for driving two-phase quadrature harmonics wave winding 4
The two-phase quadrature harmonics wave winding 4 is connected with the alternation high-frequency current of quadrature in phase.
Although describing the present invention herein with reference to specific embodiment, it should be understood that, these realities
Apply the example that example is only principles and applications.It should therefore be understood that can be carried out to exemplary embodiment
Many modifications, and can be designed that other arrangements, without departing from spirit of the invention as defined in the appended claims
And range.It should be understood that different appurtenances can be combined by being different from mode described in original claim
Benefit requires and feature described herein.It will also be appreciated that the feature in conjunction with described in separate embodiments can be used
In other described embodiments.
Claims (6)
1. a kind of synchronous motor with discrete orthogonal harmonic winding, be equipped on the rotor of the motor rotor DC excitation around
Group F and rotor harmonic wave incude winding H, and the pitch of rotor DC excitation winding F is 1, and the pitch that rotor harmonic wave incudes winding H is 1/
3；It is characterized in that, the stator (2) of the motor is also provided with discrete two-phase quadrature harmonics wave in addition to three-phase main winding (3)
Winding (4), the pitch of the two-phase quadrature harmonics wave winding (4) are the 1/3 of three-phase main winding pitch.
2. the synchronous motor according to claim 1 with discrete orthogonal harmonic winding, which is characterized in that the motor
Rotor 1 uses salient-pole structure, and rotor DC excitation winding F is mounted in rotor main pole, on the center line of rotor main pole
It is provided with slot for winding, which is divided into two rotors for each main pole and divides tooth, and each rotor divides tooth to be mounted on rotor harmonic wave
Incude winding H.
3. the synchronous motor according to claim 1 with discrete orthogonal harmonic winding, which is characterized in that the motor
Number of stator slots is 6K times of motor pole number.
4. a kind of harmonic field of synchronous motor with discrete orthogonal harmonic winding orients brushless excitation method, feature exists
In the method is：
Pass to the alternation high-frequency current of quadrature in phase to the two-phase quadrature harmonics wave winding (4), and according to rotor-position into
Row harmonic field oriented control makes alternation harmonic field incude winding H induced harmonics electromotive force in rotor harmonic wave, and then through rotating
Rectification supply rotor DC excitation winding F establishes rotor main field, to realize the brush-less electrically exciting of synchronous motor.
5. harmonic field according to claim 4 orients brushless excitation method, which is characterized in that use three-phase half-bridge power
Two-phase quadrature harmonics wave winding (4) described in circuit drives makes the two-phase quadrature harmonics wave winding (4) be connected with quadrature in phase
Alternation high-frequency current.
6. harmonic field according to claim 4 orients brushless excitation method, which is characterized in that use three-phase half-bridge topology
The power inverter of structure is used to drive the three-phase main winding (3) of stator, using the power inverter of single-phase full bridge topological structure
For driving two-phase quadrature harmonics wave winding (4), while just using the midpoint potential of two polarity free capacitors construction and two-phase
The middle site connection for handing over harmonic exitation winding (4), makes the two-phase quadrature harmonics wave winding (4) be connected with the alternation of quadrature in phase
High-frequency current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799005.3A CN108880158A (en) | 2018-07-19 | 2018-07-19 | The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799005.3A CN108880158A (en) | 2018-07-19 | 2018-07-19 | The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method |
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| CN108880158A true CN108880158A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810799005.3A Pending CN108880158A (en) | 2018-07-19 | 2018-07-19 | The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224477A (en) * | 2020-01-19 | 2020-06-02 | 东华大学 | Parallel structure brushless mixed excitation synchronous generator based on harmonic winding excitation |
| CN111262411A (en) * | 2020-01-19 | 2020-06-09 | 东华大学 | Double-harmonic winding brushless excitation direct-current generator with wide voltage regulation range |
| CN111262410A (en) * | 2020-01-19 | 2020-06-09 | 东华大学 | Brushless harmonic excitation direct-current generator with tooth harmonic self-excitation voltage stabilization capability |
| CN112821576A (en) * | 2021-01-26 | 2021-05-18 | 同济大学 | Synchronous motor rotor excitation energy and position information cooperative transmission system and method |
| CN113261178A (en) * | 2018-12-24 | 2021-08-13 | 鲲腾科技有限公司 | Multi-phase motor/generator system using harmonic injection |
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|---|---|---|---|---|
| CN103199662A (en) * | 2013-03-11 | 2013-07-10 | 南昌大学 | Third-harmonic-excitation mixed-excitation permanent magnet synchronous motor |
| CN103683775A (en) * | 2013-12-03 | 2014-03-26 | 南昌大学 | Third-harmonic excitation synchronous motor |
| CN103887908A (en) * | 2014-04-22 | 2014-06-25 | 哈尔滨工业大学 | Brushless harmonic excitation synchronous motor |
| CN106787564A (en) * | 2017-01-23 | 2017-05-31 | 南昌大学 | A kind of brushless hybrid excitation magneto based on harmonic exitation |
-
2018
- 2018-07-19 CN CN201810799005.3A patent/CN108880158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199662A (en) * | 2013-03-11 | 2013-07-10 | 南昌大学 | Third-harmonic-excitation mixed-excitation permanent magnet synchronous motor |
| CN103683775A (en) * | 2013-12-03 | 2014-03-26 | 南昌大学 | Third-harmonic excitation synchronous motor |
| CN103887908A (en) * | 2014-04-22 | 2014-06-25 | 哈尔滨工业大学 | Brushless harmonic excitation synchronous motor |
| CN106787564A (en) * | 2017-01-23 | 2017-05-31 | 南昌大学 | A kind of brushless hybrid excitation magneto based on harmonic exitation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261178A (en) * | 2018-12-24 | 2021-08-13 | 鲲腾科技有限公司 | Multi-phase motor/generator system using harmonic injection |
| CN111224477A (en) * | 2020-01-19 | 2020-06-02 | 东华大学 | Parallel structure brushless mixed excitation synchronous generator based on harmonic winding excitation |
| CN111262411A (en) * | 2020-01-19 | 2020-06-09 | 东华大学 | Double-harmonic winding brushless excitation direct-current generator with wide voltage regulation range |
| CN111262410A (en) * | 2020-01-19 | 2020-06-09 | 东华大学 | Brushless harmonic excitation direct-current generator with tooth harmonic self-excitation voltage stabilization capability |
| CN112821576A (en) * | 2021-01-26 | 2021-05-18 | 同济大学 | Synchronous motor rotor excitation energy and position information cooperative transmission system and method |
| CN112821576B (en) * | 2021-01-26 | 2023-05-02 | 同济大学 | Synchronous motor rotor excitation energy and position information cooperative transmission system and method |
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Application publication date: 20181123 |