CN204947762U - Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor - Google Patents
Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor Download PDFInfo
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- CN204947762U CN204947762U CN201420799149.6U CN201420799149U CN204947762U CN 204947762 U CN204947762 U CN 204947762U CN 201420799149 U CN201420799149 U CN 201420799149U CN 204947762 U CN204947762 U CN 204947762U
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Abstract
The utility model discloses a kind of triangle and connect three phase alternating current motor and the dual-purpose winding of three-phase reactor, it comprises threephase stator winding coil, accessory switch circuit and two groups of three-phase external terminals, it is characterized in that: the every phase winding being positioned at stator slot all comprises equal turn numbers, the slot two parts coil identical with winding, is connected by accessory switch.Accessory switch is through simple operations, connection between coil and between coil and terminal changes, make winding under a kind of on off state, be equal to triangle and connect three phase alternating current motor winding, and under another kind of on off state, be equivalent to three-phase reactor winding, thus the effect that equipment of reaching is dual-purpose.Some type plug-in automobile and can be grid-connected distributed power generation unit in, alternating current machine and reactor all need to possess but asynchronously use, like this, and equipment dual-purpose, both avoid the wasting of resources and again reduced weight of equipment and space hold, improve capacity utilization simultaneously.
Description
Technical field
The utility model relates to a kind of dual-purpose coil winding circuit, makes the triangle connection three phase alternating current motor possessing this winding after simple invertible switch switches, realize the function of three-phase reactor.
Background technology
As shown in Figure 1, the stator winding of traditional three phase alternating current motor can adopt triangle to connect, and be called for short corner connection, namely three-phase coil winding joins end to end successively, forms triangle.Leg-of-mutton three end points and external terminal U, V, W connect with external three-phase symmetrical power.When external power supply provides three-phase symmetrical sinusoidal voltage, stator coil produces rotating magnetic field, and the electromagnetic torque produced after acting on rotor field makes rotor rotate.When rotor is without saliency, each phase coil inductance value L1=L2=L3=L of stator.
Three-phase reactor can be made up of three identical coil windings and supporting iron core.Each phase coil inductance value is that the three-phase reactor circuit connecting of L1=L2=L3=L can be represented by Fig. 2.
In some application scenario, both needed to use three phase alternating current motor, and also needed to use three-phase reactor, the plug-in automobile of such as some type, containing pure electric automobile or plug-in hybrid-power automobile, and some type can grid-connected distributed power generation unit etc.For these application, even if occur when these two kinds of demands of motor and reactor are different, when user also needs to install these two kinds of equipment of outfit for needs.This not only defines the wasting of resources but also adds weight of equipment and space hold.
Summary of the invention
In view of the foregoing, the purpose of this utility model is to provide a kind of triangle and connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, the function that the motor possessing this Winding Design can be realized between normal communication motor and three-phase reactor by simple switch operation switches, thus the effect that the equipment that reaches is dual-purpose.
For achieving the above object, the utility model is by the following technical solutions:
As shown in Figure 3, the design of this corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor comprises threephase stator winding coil and accessory switch circuit and two groups of three-phase external terminals, wherein stator winding often comprises the equal turn numbers of series connection, the slot two parts coil identical with winding mutually, the i.e. L1 coil of UV phase in L11 and L12(corresponding diagram 1), the L2 coil of VW phase in L21 and L22(corresponding diagram 1), with the L3 coil of WU phase in L31 and L32(corresponding diagram 1), accessory switch circuit comprises five interlock single-pole double-throw switch (SPDT) S1, S2, S3, S4, and S5.When rotor is without saliency, each coil inductance L11=L12=L21=L22=L31=L32=L/2.
The each two parts coil contained mutually of threephase stator winding, is all installed in the stator coring groove of alternating current machine, and the arrangement of its slot and winding design all meet design principle and the technical requirement of three phase alternating current motor.
One of five single-pole double-throw switch (SPDT)s S1 is positioned at the triangle end points place that L32 tail end is connected with L11 head end, and its cutter shaft connects L32 tail end, and its counterclockwise switch position connects L11 head end and external terminal U simultaneously, and its clockwise switch bit connects external terminal V '.
S2 is positioned at the triangle end points place that L12 tail end is connected with L21 head end, and its cutter shaft connects L12 tail end, and its counterclockwise switch position connects L21 head end and external terminal V simultaneously, and its clockwise switch bit connects external terminal U '.
S3 is positioned at the triangle end points place that L22 tail end is connected with L31 head end, and its cutter shaft connects L22 tail end, and its counterclockwise switch position connects L31 head end and external terminal W simultaneously, and its clockwise switch bit connects external terminal W '.
S4 is positioned at the junction of L21 and L22, and its cutter shaft connects L22 head end, and its counterclockwise switch position connects L21 tail end, and its clockwise switch bit connects L31 tail end.
S5 is positioned at the junction of L31 and L32, and its cutter shaft connects L32 head end, and its counterclockwise switch position connects L31 tail end, and its clockwise switch bit connects L21 tail end.
Five single-pole double-throw switch (SPDT)s must carry out interlock, and switching manipulation is carried out in unification, and its function and topoligical equivalence are in one group of five double-pole double throw switch.When five single-pole double-throw switch (SPDT)s unifications are thrown into counterclockwise switch position, three-phase windings forms delta connection, and three end points connect three-phase external terminal UVW respectively, i.e. the three phase alternating current motor of triangle connection; And when unifying to throw into clockwise switch bit, each terminal and coil form three groups of new windings, i.e. UU ' phase: U-L11-L12-U ', VV ' phase: V-L21-L32-V ', WW ' phase: W-L31-L22-W ', is a three-phase reactor, and each phase inductance value is L/2+L/2=L.
In different embodiments, the switching logic of all single-pole double-throw switch (SPDT)s can give physics realization by machinery, electromagnetism or semiconductor electronic on-off mode.
Under reactor connection, when passing into three-phase symmetrical alternating current, two parts coil of three-phase windings, L11, L21, L31 and L12, L22, L32 can produce the contrary electromagnetic torque in equal and opposite in direction, direction thus make epitrochanterian total electromagnetic torque be zero on rotor.
The beneficial effects of the utility model are, in qualified application scenario, user uses this equipment by arranging S1-S5 to select or uses as three-phase reactor as three phase alternating current motor, thus realizing the dual-purpose of equipment, this not only avoids device resource waste and avoids increases weight of equipment and space hold because of needs mounted motor and reactor two complete equipment.
Accompanying drawing explanation
Fig. 1 is that existing triangle connects three phase alternating current motor stator winding circuit figure.
Fig. 2 is existing three-phase reactor winding circuit figure.
Fig. 3 is three phase alternating current motor and the dual-purpose winding circuit figure of reactor disclosed in the utility model, possesses the ability realizing three phase alternating current motor and three-phase reactor respectively.
Fig. 4 is the equivalent circuit diagram of dual-purpose winding when adopting alternating current machine connection disclosed in the utility model.
Fig. 5 is the equivalent circuit diagram of dual-purpose winding when adopting reactor connection disclosed in the utility model.
Fig. 6 is a kind of implementing circuit of semiconductor single-pole double-throw switch (SPDT).
Each circuit diagram does not all show iron core above.
Embodiment
Fig. 3 describes design principle of the present utility model on the one hand, can be used as again simultaneously and adopts mechanical switch or electromagnetic relay to realize the embodiment of each single-pole double-throw switch (SPDT) function.
In Fig. 3, when switch S 1-S5 throws into counterclockwise switch position simultaneously, as shown in Figure 4, the original motor winding in the completely equivalent Fig. 1 of this circuit, circuit connecting at this moment is obviously a three phase alternating current motor to circuit.When switch S 1-S5 throws into clockwise switch bit simultaneously, circuit connects as shown in Figure 5.Comparison diagram 5 and Fig. 2 can find out, two circuit are equivalences completely, and therefore circuit connecting is at this moment three-phase reactor, and each phase coil inductance value is equal to L.
S1-S5 in Fig. 3 also can be realized by semiconductor electronic switch.Fig. 6 describes a kind of embodiment of the semiconductor single-pole double-throw switch (SPDT) realized by two bidirectional triode thyristor T1 and T2.When gate pole G1 passes into trigger current, T1 two-way admittance, on the contrary turn off when alternating current zero crossing; Gate pole G2 is like this equally to T2.When passing into trigger current when G1 with G2 is different, this circuit can realize terminal AB conducting or AC conducting, the switching logic of Here it is single-pole double throw.
In it is pointed out that reactor connects, the two-phase in original motor three-phase windings has intercoursed the winding coil of the half number of turn, and this is the key technology point in the utility model.The benefit done like this is, under reactor connection, makes the stator of motor produce equal and opposite in direction simultaneously, two rotating magnetic fields that direction is contrary, and the two electromagnetic torque produced cancels each other, and therefore on motor shaft, mechanical torque exports.The realization of this effect also depends on a condition, and namely the rotor of three phase alternating current motor must without saliency, and can ensure like this when any rotor-position, the inductance value of each coil is completely the same.Therefore, when specifically implementing, the utility model must be limited to the alternating current machine without saliency such as three-phase induction (asynchronous) motor, surface-mounted permanent magnet machine etc.
The inductance parameters L of reactor can consider in the lump when design of electrical motor.The inductance value of design motor winding is the technology contents known by design of electrical motor engineer.
The above know-why being specific embodiments of the invention and using, any based on the equivalent transformation on technical solution of the present invention basis, all belong within scope.
Claims (11)
1. a triangle connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it comprises threephase stator winding coil and accessory switch circuit and two groups of three-phase external terminals, it is characterized in that: in described stator winding and accessory switch circuit, stator winding often comprises equal turn numbers, the slot two parts coil identical with winding mutually, and accessory switch circuit comprises five interlock single-pole double-throw switch (SPDT)s.
2. triangle according to claim 1 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: in described threephase stator winding, the triangle end points place that every two phase coils connect and the arbitrarily junction of each two parts coil contained by two-phase are respectively provided with a single-pole double-throw switch (SPDT), five switches altogether.
3. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: one of described five single-pole double-throw switch (SPDT)s, be designated as switch one, be positioned at the triangle end points place that third phase winding tail end is connected with first-phase winding head end, its cutter shaft connects third phase winding tail end, switch bit one connects one of first-phase winding head end and first group of three-phase external terminal simultaneously, one of its two companies, second group of three-phase external terminal of switch bit.
4. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: one of described five single-pole double-throw switch (SPDT)s, be designated as switch two, be positioned at the triangle end points place that first-phase winding tail end is connected with second-phase winding head end, its cutter shaft connects first-phase winding tail end, switch bit one connects one of second-phase winding head end and first group of three-phase external terminal, one of its two companies, second group of three-phase external terminal of switch bit.
5. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: one of described five single-pole double-throw switch (SPDT)s, be designated as switch three, be positioned at the triangle end points place that second-phase winding tail end is connected with third phase winding head end, its cutter shaft connects second-phase winding tail end, switch bit one connects one of third phase winding head end and first group of three-phase external terminal, one of its two companies, second group of three-phase external terminal of switch bit.
6. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: one of described five single-pole double-throw switch (SPDT)s, be designated as switch four, be positioned at the junction of two parts coil of second-phase winding, its cutter shaft connects Part II coil head end, switch bit one connects Part I coil tail end, its two companies third phase winding Part I coil tail end of switch bit.
7. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: one of described five single-pole double-throw switch (SPDT)s, be designated as switch five, be positioned at the junction of two parts coil of third phase winding, its cutter shaft connects Part II coil head end, switch bit one connects Part I coil tail end, its two companies second-phase winding Part I coil tail end of switch bit.
8. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: described five single-pole double-throw switch (SPDT)s form interlock, and switching manipulation is carried out in unification, and function and topology are equivalent to one group of five double-pole double throw switch.
9. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: described five single-pole double-throw switch (SPDT)s when unified throw into switch bit its for the moment, involved three-phase windings forms delta connection and an Atria end points is connected with first group of three-phase external terminal respectively.
10. triangle according to claim 2 connects three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: described five single-pole double-throw switch (SPDT)s when unified throw into switch bit its two time, involved three-phase windings is by formation three independently winding, each winding head end connects first group of three-phase external terminal respectively, tail end connects second group of three-phase external terminal respectively, wherein winding one is first-phase winding, winding two is the new winding that the Part I coil of second-phase winding and the Part II coil of third phase winding form, winding three is the new winding that the Part I coil of third phase winding and the Part II coil of second-phase winding form.
11. triangles according to claim 1 connect three phase alternating current motor and the dual-purpose winding of three-phase reactor, it is characterized in that: described single-pole double-throw switch (SPDT) logic can give physics realization by machinery, electromagnetism or semiconductor electronic on-off mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799149.6U CN204947762U (en) | 2014-12-17 | 2014-12-17 | Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799149.6U CN204947762U (en) | 2014-12-17 | 2014-12-17 | Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor |
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| Publication Number | Publication Date |
|---|---|
| CN204947762U true CN204947762U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420799149.6U Expired - Fee Related CN204947762U (en) | 2014-12-17 | 2014-12-17 | Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor |
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| CN (1) | CN204947762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790478A (en) * | 2014-12-17 | 2016-07-20 | 戴民 | Triangle-connection three-phase alternating-current motor and three-phase electric reactor dual-purpose winding |
| CN112152386A (en) * | 2020-10-14 | 2020-12-29 | 北京动力机械研究所 | Superspeed integrated motor with stepless adjustable internal inductance |
-
2014
- 2014-12-17 CN CN201420799149.6U patent/CN204947762U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790478A (en) * | 2014-12-17 | 2016-07-20 | 戴民 | Triangle-connection three-phase alternating-current motor and three-phase electric reactor dual-purpose winding |
| CN105790478B (en) * | 2014-12-17 | 2018-06-01 | 安捷励电控技术南京有限公司 | Corner connection three phase alternating current motor and the dual-purpose winding of three-phase reactor |
| CN112152386A (en) * | 2020-10-14 | 2020-12-29 | 北京动力机械研究所 | Superspeed integrated motor with stepless adjustable internal inductance |
| CN112152386B (en) * | 2020-10-14 | 2022-06-21 | 北京动力机械研究所 | Superspeed integrated motor with stepless adjustable internal inductance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160122 Address after: 300000 110-07 room, No. 1, Jing Lu, Dongli Economic Development Zone, Tianjin, China Patentee after: Tianjin Anjie Li electronic technology limited liability company Address before: 100193 Beijing city Haidian District Old Summer Palace Road 2, Green Garden District Building 1 unit 501 room 216 Patentee before: Dai Min |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211806 Jiangsu province Nanjing city Pukou District Qiaolin Street 29 step road 12 -156 Patentee after: Nanjing Electronic Technology Co. Ltd. Ansett Lai Address before: 300000 110-07 room, No. 1, Jing Lu, Dongli Economic Development Zone, Tianjin, China Patentee before: Tianjin Anjie Li electronic technology limited liability company |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20181217 |