CN107317439A - A kind of heavy-duty motor for realizing winding parallel control - Google Patents

A kind of heavy-duty motor for realizing winding parallel control Download PDF

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Publication number
CN107317439A
CN107317439A CN201710747190.7A CN201710747190A CN107317439A CN 107317439 A CN107317439 A CN 107317439A CN 201710747190 A CN201710747190 A CN 201710747190A CN 107317439 A CN107317439 A CN 107317439A
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China
Prior art keywords
phases
winding
power device
sub
phase windings
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Chinese (zh)
Inventor
殷天明
王艳
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Bijie Tian Yu Power Science And Technology Co Ltd
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Bijie Tian Yu Power Science And Technology Co Ltd
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Priority to CN201710747190.7A priority Critical patent/CN107317439A/en
Publication of CN107317439A publication Critical patent/CN107317439A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

The invention discloses a kind of heavy-duty motor for realizing winding parallel control, the motor includes polyphase windings, and winding described in per phase is made up of n winding branch road and 2n power device；Wherein, the n winding branch road is mutually in parallel, and each winding branch route the power device independent control.The present invention solves the technical barrier realized and be controlled to heavy-duty motor with low power power device, and the reliability and stability of motor operation is higher.

Description

A kind of heavy-duty motor for realizing winding parallel control
Technical field
The present invention relates to technical field of motors, more particularly to a kind of heavy-duty motor for realizing winding parallel control.
Background technology
In the control of motor, it usually needs use power device, such as insulated gate bipolar transistor (IGBT), metal- Oxide semiconductor field effect transistor (MOSFET), power transistor (GTR) or integrated gate commutated thyristor (IGCT).Such as Shown in Fig. 1, motor is made up of per phase winding 2 independent power devices, 1 independent phase winding.After electric current is flowed into through E points, pass through Control power device and realize whether the conducting to each phase of motor controls.But, it is necessary to use big in the control of heavy-duty motor The power device of power, and powerful power device often because species is few etc. reason is difficult find it is suitable and expensive.
In order to solve the above problems, the side connected again with phase winding there is provided a kind of parallel connection of power device in the prior art Case.As shown in Fig. 2 motor is made up of per phase winding 2n independent power device and 1 independent phase winding.Electric current is flowed into by E points Afterwards can realization small capacity power device controls heavy-duty motor by the independent power device shunting of n combination of two.But should Scheme implements the technical barrier for needing to solve to flow due to being influenceed by power device uniformity
The content of the invention
The present invention solves the technical problem of a kind of heavy-duty motor for realizing winding parallel control is provided, to solve Above mentioned problem.
In order to solve the above problems, one aspect of the present invention is：Winding parallel control is realized there is provided one kind The heavy-duty motor of system, it includes polyphase windings, and winding described in per phase is made up of n winding branch road and 2n power device；Its In, the n winding branch road is mutually in parallel, and each winding branch route the power device independent control.
Wherein, when the winding is asymmetrical half-bridge connected mode, the polyphase windings are by m phase compositions, wherein each The winding branch road includes the first power device, sub- winding and the second power device.
Wherein, the winding branch road includes the first power device Tm1n, sub- winding LmnAnd the second power device Tm2n, wherein, The first power device Tm1nWith the second power device Tm2nThe sub- winding L is series at respectivelymnTwo ends.
Wherein, when the winding is triangular form connected mode, the polyphase windings include A phase windings, B phase windings and C Phase winding, wherein each winding branch road includes the first power device, sub- winding and the second power device.
Wherein, winding branch route A the first power devices of phase T of the A phase windingsA1n, the sub- winding L of A phasesnAAnd the work(of A phases second Rate device TA2nComposition, winding branch route B the first power devices of phase T of the B phase windingsB1n, the sub- winding L of B phasesnBAnd B phases second Power device TB2nComposition, winding branch route C the first power devices of phase T of the C phase windingsC1n, the sub- winding L of C phasesnCAnd C phases Two power device TC2nComposition；Wherein：
The first power device of A phases TA1nOne end is connected with positive source, the other end respectively with the sub- winding L of the A phasesnA One end, the sub- winding L of the C phasesnCOne end and the second power device of A phases TA2nThe other end is connected；The sub- winding L of A phasesnASeparately One end and the first power device of B phases TB11The other end, the second power device of B phases TB21The other end and the B phases son around Group LnBOne end is connected, the second power device of A phases TA2nOne end is grounded；
The first power device of B phases TB1nOne end is connected with the positive source, the other end respectively with the A phases son around Group LnAThe other end, the second power device of B phases TBThe 2n other ends and the sub- winding L of the B phasesnBOne end is connected；B phases around Group LnBThe other end and the first power device of C phases TC11The other end, the second power device of C phases TC21The other end is connected；Institute State the second power device of B phases TB2nOne end is grounded；
The first power device of C phases TC1nOne end is connected with the positive source, the other end respectively with the C phases son around Group LnCThe other end and the sub- winding L of the B phasesnBThe other end is connected, the second power device of C phases TC2nOne end is grounded.
Wherein, when the winding is star-like connected mode, the polyphase windings include A phase windings, B phase windings and C phases Winding, wherein the winding branch road includes the first power device, sub- winding and the second power device respectively.
Wherein, the A phase windings branch road is respectively by the first power device of A phases TA1n, the sub- winding L of A phasesnAAnd the power of A phases second Device TA2nComposition, the A phase windings branch road is respectively by the first power device of B phases TB1n, the sub- winding L of B phasesnBAnd the power of B phases second Device TB2nComposition, the C phase windings branch road is respectively by the first power device of C phases TC1n, the sub- winding L of C phasesnCAnd the power of C phases second Device TC2nComposition；Wherein：
The first power device of A phases TA1nOne end is connected with positive source, the other end respectively with the sub- winding L of the A phasesnA One end and the second power device of A phases TA2nThe other end is connected, the second power device of A phases TA2nOne end is grounded；
The first power device of B phases TB1nOne end is connected with the positive source, the other end respectively with the B phases son around Group LnBOne end and the second power device of B phases TB2nThe other end is connected, the second power device of B phases TB2nOne end is grounded；
The first power device of C phases TC1nOne end is connected with positive source, the other end respectively with the sub- winding L of the C phasesnC One end and the second power device of C phases TC2nThe other end is connected, the second power device of C phases TC2nOne end is grounded；
The wherein described sub- winding L of A phasesnA, the sub- winding L of B phasesnBWith the sub- winding L of C phasesnCThe other end be commonly connected together.
Beneficial effects of the present invention：Because each winding branch of motor route power device independent control, with prior art Compare, without being flowed to power device, power device can be effectively prevented from and burnt, improve whole system stability with Reliability；Further, production cost can be reduced, realization controls heavy-duty motor with low-power device.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, is adopted required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.Wherein：
Fig. 1 is that a kind of high power device of prior art controls the structural representation of heavy-duty motor；
Fig. 2 is that a kind of low-power device of prior art controls the structural representation of heavy-duty motor；
Fig. 3 is the circuit diagram of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention one.
Fig. 4 is the circuit diagram of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention two.
Fig. 5 is the circuit diagram of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention three.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under the premise of performing creative labour is not made Embodiment, belongs to the scope of protection of the invention.
Shown in Figure 3, Fig. 3 is the circuit of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention one Figure.As shown in figure 3, the motor 10 disclosed in the present embodiment includes polyphase windings 11, such as m phase windings, wherein m is more than or equal to 1. At least include two winding branch roads 111 per phase winding 11, i.e., include n winding branch road 111 being arranged in parallel per phase winding 11, its Middle n is more than or equal to 2.
Motor disclosed in the present embodiment is illustrated by taking a phase winding 11 as an example, winding 11 and the phase winding of other phases 11 principles are identical, will not be repeated here.
Specifically, each winding branch road 111 includes at least one sub- winding L1nAnd two and sub- winding L1nThe work(of series connection Rate device 1111.As shown in figure 3, the first winding branch road 111 of the phase winding 11 includes a sub- winding L11With two and the son Winding L11The power device 1111 of series connection, two power devices 1111 are respectively power device T11With power device T21, power device Part T11, sub- winding L11And power device T21It is connected in series.
Sub- winding L at least two winding branch roads 11111Turn to a winding entirety L1, such as phase winding 11 wraps N winding branch road 111 is included, then sub- winding L11, sub- winding L12... and sub- winding L1nTurn to a winding entirety L1。
Wherein, the rated power of the power device 1111 of each parallel branch is more than the sub- winding L of the parallel branch1nRequired reality Border power.
Due to power device T11Rated power be more than when the phase winding 11 works power device T11The winding branch at place The actual power on road 111, therefore when winding branch road 111 works or is stopped, it is to avoid power device T11Or power device Part T21In a power device 1111 because electric current is excessive and damages.
Wherein, the first parallel branch 111 includes electronic component D111With electronic component D121, electronic component D111 With electronic component D121For fly-wheel diode.
The operation principle of lower winding 11 described in detail below.
Winding entirety L1It is divided into sub- winding L11, sub- winding L12... and sub- winding L1n, i.e., by sub- winding L11, son around Group L12... and sub- winding L1nTurn to winding entirety L1。
For every sub- winding L1n, wherein：Sub- winding L11, pass through two low power power device T11And power device T21It is controlled；Sub- winding L12, pass through two low power power device T12With power device T22It is controlled；... son around Group L1n, pass through two low power power device T1nWith power device T2nIt is controlled.In power device T1nAnd power device T2nWhen simultaneously turning on, corresponding sub- winding L1nStart working.
Due to every sub- winding L1nCorresponding power device T1nWith power device T2nAll it is relatively independent, therefore nothing Power device 1111 in parallel need to be flowed, it is to avoid power device 1111 burns.
Due to sub- winding L11, sub- winding L12... and sub- winding L1nConnected using parallel way so that machine winding 11 reliability is higher, and redundancy is good.
In addition, the present embodiment controls heavy-duty motor 10 using low power power device 1111, cost is reduced.
Shown in Figure 4, Fig. 4 is the circuit of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention two Figure.As shown in figure 4, the winding connection of the motor disclosed in the present embodiment connects for triangle, motor has three-phase windings, Respectively：A phase windings, B phase windings and C phase windings.Wherein, the winding branch road of A phase windings includes the first power device of A phases TA1n、 The sub- winding L of A phasesnAAnd the second power device of A phases TA2n；The winding branch road of B phase windings includes the first power device of B phases TB1n, B phases son Winding LnBAnd the second power device of B phases TB2n；The winding branch road of C phase windings includes the first power device of C phases TC1n, the sub- winding of C phases LnCAnd the second power device of C phases TC2n.Because triangle connection control mode is to be well known to those skilled in the art, here No longer it is further discussed below control principle.For the present embodiment, connected mode is made a detailed explanation.
By taking the first parallel branch of every phase as an example, in order to describe conveniently, below by power device and positive source or ground connection Connected one end is referred to as one end, then the corresponding one end that is not connected with positive source or ground connection is referred to as the other end.Especially, below Described the first power device of A phases TA1nAnd the machine winding that the power device only controls the mutually parallel branch is not specific to, it can To be engaged with other the being connected branch power device that is in parallel and complete corresponding task, so narration is only for convenience of managing here Solution.
Specifically, the first power device of A phases TA11One end is connected with positive source, the other end respectively with the A phases son around Group L1AOne end A11, the sub- winding L of C phases1COne end C11And the second power device of A phases TA21The other end is connected；The sub- winding L of A phases1AIt is another Hold A12With the first power device of B phases TB11The other end, the second power device of B phases TB21The other end and the sub- winding L of B phases1BOne end B11Even Connect；The second power device of A phases TA21One end is grounded.
The first power device of B phases TB11One end is connected with positive source, the other end respectively with the sub- winding L of the A phases1AIt is another Hold A12, the second power device of B phases TB21The other end and the sub- winding L of B phases1BOne end B11Connection.The sub- winding L of B phases1BOther end B12With C The first power device of phase TC11The other end, the second power device of C phases TC21The other end and the sub- winding L of C phases1COther end C12Connection；B The second power device of phase TB21One end is grounded.
The first power device of C phases TC11One end is connected with positive source, the other end respectively with the sub- winding L of C phases1CThe other end C12, the sub- winding L of B phases1BOther end B12And the second power device of C phases TC21The other end is connected；The second power device of C phases TC21One end Ground connection.
Wherein, the winding branch road of A phase windings includes electronic component DA11And DA21；The winding branch road of B phase windings includes electricity Sub- component DB11And DB21；The winding branch road of C phase windings includes electronic component DC11And DC21, electronic component DA11、DA21、 DB11、DB21、DC11And DC21For fly-wheel diode.
At least two winding branch roads per phase winding turn to a winding entirety, and such as A phase windings include n parallel connection Winding branch road LnA, then sub- winding L1A, sub- winding L2A... and sub- winding LnATurn to a winding entirety LA.Similarly, B phases Winding is then by sub- winding L1B, sub- winding L2B... and sub- winding LnBTurn to a winding entirety LB；C phase windings are then by son Winding L1C, sub- winding L2C... and sub- winding LnCTurn to a winding entirety LC.A phase windings LA, B phase windings LBWith C phases Winding LCCollectively constitute a motor.
In the present embodiment, due to the winding branch of the winding branch road of A phase windings, the winding branch road of B phase windings and C phase windings The equal independent control in road, is flowed, it is to avoid power device burns without the power device to winding branch road.
In addition, the present embodiment controls heavy-duty motor using low power power device, cost is reduced.
In the present embodiment, it can be insulated gate bipolar transistor that the first power device and the second power device, which are distinguished, (IGBT), Metal-Oxide Semiconductor field-effect transistor (MOSFET), power transistor (GTR) or integrated gate commutated crystalline substance One kind in brake tube (IGCT).In other embodiments, those skilled in the art can also be by the first power device and second Power device is set to other power devices.
Shown in Figure 5, Fig. 5 is the circuit of the heavy-duty motor for realizing winding parallel control of the embodiment of the present invention three Figure.As shown in figure 5, the winding connection of the motor disclosed in the present embodiment is star-like connection, three-phase is had, is respectively：A phases Winding, B phase windings and C phase windings.Wherein, A phase windings branch road includes the first power device of A phases TA1n, the sub- winding L of A phasesnAAnd A phases Second power device TA2n, B phase windings branch road include the first power device of B phases TB1n, the sub- winding L of B phasesnBAnd the power device of B phases second Part TB2n, C phase windings branch road include the first power device of C phases TC1n, the sub- winding L of C phasesnCAnd the second power device of C phases TC2n.Due to Star-like connection control mode has been well known to those skilled in the art, and control principle is no longer further discussed below here.For this Embodiment, only does a specific introduction to connected mode here.
By taking the first winding branch road of every phase as an example, in order to describe conveniently, below by power device and positive source or ground connection Connected one end is referred to as one end, then the corresponding one end that is not connected with positive source or ground connection is referred to as the other end.Especially, below The first power device of A phases TA1nAnd it is not specific to the machine winding that the power device only controls the mutually parallel branch, it can be with It is engaged with other the being connected branch power device that is in parallel and completes corresponding task, so narration is only for convenience of managing here Solution.
Specifically, the first power device of A phases TA11One end is connected with positive source, the other end respectively with the sub- winding L of A phases1A One end A11And the second power device of A phases TA21The other end is connected；The second power device of A phases TA2nOne end is grounded.
The first power device of B phases TB11One end is connected with positive source, the other end respectively with the sub- winding L of B phasesnBOne end B12And The second power device of B phases TB21The other end is connected；Second power device TB2nOne end is grounded.
The first power device of C phases TC11One end is connected with positive source, the other end respectively with the sub- winding L of C phases1COne end and C phases Second power device TC21One end is connected；The second power device of C phases TC21The other end is grounded.Especially, the sub- winding L of A phasesnAIt is another Hold A12, the sub- winding L of B phasesnBOther end B12With the sub- winding L of C phasesnCOther end C12It is commonly connected together.
Wherein, the winding branch road of A phase windings includes electronic component DA11And DA21；The winding branch road of B phase windings includes electricity Sub- component DB11And DB21；The winding branch road of C phase windings includes electronic component DC11And DC21, electronic component DA11、DA21、 DB11、DB21、DC11And DC21For fly-wheel diode.
At least two winding branch roads per phase winding turn to a winding entirety, and such as A phase windings include n parallel connection Winding branch road LnA, then sub- winding L1A, sub- winding L2A... and sub- winding LnATurn to a winding entirety LA.Similarly, B phases Winding is then by sub- winding L1B, sub- winding L2B... and sub- winding LnBTurn to a winding entirety LB；C phase windings are then by son Winding L1C, sub- winding L2C... and sub- winding LnCTurn to a winding entirety LC.A phase windings LA, B phase windings LBWith C phases Winding LCCollectively constitute a motor.
In the present embodiment, due to the winding branch of the winding branch road of A phase windings, the winding branch road of B phase windings and C phase windings The equal independent control in road, is flowed, it is to avoid power device burns without the power device to winding branch road.
In addition, the present embodiment controls heavy-duty motor using low power power device, cost is reduced.
In the present embodiment, it can be insulated gate bipolar transistor that the first power device and the second power device, which are distinguished, (IGBT), Metal-Oxide Semiconductor field-effect transistor (MOSFET), power transistor (GTR) or integrated gate commutated crystalline substance One kind in brake tube (IGCT).In other embodiments, those skilled in the art can also be by the first power device and second Power device is set to other power devices.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims (7)

1. a kind of heavy-duty motor for realizing winding parallel control, it is characterised in that the motor includes polyphase windings, per phase institute Winding is stated to be made up of n winding branch road and 2n power device；Wherein, the n winding branch road is mutually in parallel, it is each described around Group branch route the power device independent control.
2. motor according to claim 1, it is characterised in that when the winding is asymmetrical half-bridge connected mode, institute Polyphase windings are stated by m phase compositions, wherein each winding branch road includes the first power device, sub- winding and the second power device Part.
3. motor according to claim 2, it is characterised in that the winding branch road includes the first power device Tm1n, son around Group LmnAnd the second power device Tm2n, wherein, the first power device Tm1nWith the second power device Tm2nIt is series at respectively The sub- winding LmnTwo ends.
4. motor according to claim 1, it is characterised in that described many when the winding is triangular form connected mode Phase winding includes A phase windings, B phase windings and C phase windings, wherein each winding branch road include the first power device, son around Group and the second power device.
5. motor according to claim 4, it is characterised in that winding branch route A the first power devices of phase of the A phase windings Part TA1n, the sub- winding L of A phasesnAAnd the second power device of A phases TA2nComposition, winding branch route B the first power of phase of the B phase windings Device TB1n, the sub- winding L of B phasesnBAnd the second power device of B phases TB2nComposition, winding branch route C the first work(of phase of the C phase windings Rate device TC1n, the sub- winding L of C phasesnCAnd the second power device of C phases TC2nComposition；Wherein：
The first power device of A phases TA1nOne end is connected with positive source, the other end respectively with the sub- winding L of the A phasesnAOne end, The sub- winding L of C phasesnCOne end and the second power device of A phases TA2nThe other end is connected；The sub- winding L of A phasesnAThe other end With the first power device of B phases TB11The other end, the second power device of B phases TB21The other end and the sub- winding L of the B phasesnB One end is connected, the second power device of A phases TA2nOne end is grounded；
The first power device of B phases TB1nOne end is connected with the positive source, the other end respectively with the sub- winding L of the A phasesnA The other end, the second power device of B phases TBThe 2n other ends and the sub- winding L of the B phasesnBOne end is connected；The sub- winding L of B phasesnB The other end and the first power device of C phases TC11The other end, the second power device of C phases TC21The other end is connected；The B phases Second power device TB2nOne end is grounded；
The first power device of C phases TC1nOne end is connected with the positive source, the other end respectively with the sub- winding L of the C phasesnC The other end and the sub- winding L of the B phasesnBThe other end is connected, the second power device of C phases TC2nOne end is grounded.
6. motor according to claim 1, it is characterised in that when the winding is star-like connected mode, the multiphase Winding includes A phase windings, B phase windings and C phase windings, wherein the winding branch road includes the first power device, sub- winding respectively And second power device.
7. motor according to claim 6, it is characterised in that the A phase windings branch road is respectively by the power device of A phases first TA1n, the sub- winding L of A phasesnAAnd the second power device of A phases TA2nComposition, the A phase windings branch road is respectively by the power device of B phases first TB1n, the sub- winding L of B phasesnBAnd the second power device of B phases TB2nComposition, the C phase windings branch road is respectively by the power device of C phases first TC1n, the sub- winding L of C phasesnCAnd the second power device of C phases TC2nComposition；Wherein：
The first power device of A phases TA1nOne end is connected with positive source, the other end respectively with the sub- winding L of the A phasesnAOne end And the second power device of A phases TA2nThe other end is connected, the second power device of A phases TA2nOne end is grounded；
The first power device of B phases TB1nOne end is connected with the positive source, the other end respectively with the sub- winding L of the B phasesnB One end and the second power device of B phases TB2nThe other end is connected, the second power device of B phases TB2nOne end is grounded；
The first power device of C phases TC1nOne end is connected with positive source, the other end respectively with the sub- winding L of the C phasesnCOne end And the second power device of C phases TC2nThe other end is connected, the second power device of C phases TC2nOne end is grounded；
The wherein described sub- winding L of A phasesnA, the sub- winding L of B phasesnBWith the sub- winding L of C phasesnCThe other end be commonly connected together.
CN201710747190.7A 2017-08-25 2017-08-25 A kind of heavy-duty motor for realizing winding parallel control Pending CN107317439A (en)

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Application Number Priority Date Filing Date Title
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CN107317439A true CN107317439A (en) 2017-11-03

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