CN203261208U - Multiple winding variable power induction motor - Google Patents
Multiple winding variable power induction motor Download PDFInfo
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- CN203261208U CN203261208U CN 201220638447 CN201220638447U CN203261208U CN 203261208 U CN203261208 U CN 203261208U CN 201220638447 CN201220638447 CN 201220638447 CN 201220638447 U CN201220638447 U CN 201220638447U CN 203261208 U CN203261208 U CN 203261208U
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Abstract
The utility model provides a multiple winding variable power induction motor, comprising a three-phase induction motor. Form of a motor stator winding is one of the two following forms. When motor duplex winding dual-power operation is realized, the number of windings connected in series in each phase of the motor stator winding uses a scheme of few winding number and multiple winding number, and the few winding number and the multiple winding number share a same power input end, and taps are respectively led out on the other end of the few winding number and the multiple winding number. When motor three-winding three-power operation is realized, the number of windings connected in series in each phase of the motor stator winding uses a scheme of few winding number, medium winding number, and multiple winding number, and the few winding number, the medium winding number, and the multiple winding number share a same power input end, and taps are respectively led out on the other end of the few winding number, the medium winding number, and the multiple winding number. The multiple winding variable power induction motor prevents defects of large loss and low efficiency when a large-power motor drives a small vehicle, and efficiency of the motor and power factors are effectively improved.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to a kind of many windings and becomes the power induction machine.
Background technology
In many applications of motor, the start-up period of motor needs heavy-load start, and the load that drags in running steady in a long-term is very light.Power demand apolegamy motor as by steady in a long-term operation the time, then when starting because of starting power deficiency motor damage.As matching motor by the starting power demand, motor can start smoothly, but because selected motor all is single power motor, this will cause the phenomenon of low load with strong power when long-time running, so that the efficient of motor, power factor are all very low, thereby reduced the running quality of electrical network.
The utility model content
The utility model provides a kind of many windings to become the power induction machine, its objective is large, the inefficient problem of the loss of electric machine when solving in the past light running, the utility model can be according to actual motion load variations characteristic, capacity operation when electric motor starting, behind electric motor starting during light running, by changing the stator winding number of turn that whenever is in series, output and the load power that is complementary, obtain higher efficient and power factor, and then reach energy-conservation purpose.
Technical scheme:
A kind of many windings become the power induction machine, include three-phase induction motor, it is characterized in that: the form of motor stator winding is a kind of in following two kinds of forms: when realizing the two Power operation of motor double winding, motor stator winding whenever is in series, and the number of turn is lacked in number of turn employing and multiturn is counted scheme, and few number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn and multiturn number; When realizing motor three windings three Power operation, motor stator winding whenever is in series, and the number of turn, the middle number of turn and multiturn are counted scheme less in number of turn employing, and few number of turn, the middle number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn, the middle number of turn and multiturn number.
The motor stator winding total number of turns that whenever is in series is N=N
1* q*p, wherein, N
1Be every groove number of turn, p is number of pole-pairs, and q is every extremely every phase groove number, and it is comprised of three parts, i.e. q=q
1+ q
2+ q
3, when the motor stator winding number of turn that whenever is in series is N=N
1* q
1* be the few number of turn situation during p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2) be the middle number of turn situation during * p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2+ q
3) be that multiturn is counted situation during * p.
No matter the described stator winding number of turn that whenever is in series is few number of turn, the middle number of turn or multiturn number, and its three phase winding is symmetrical, and formed magnetic field is circular rotating field.
Described stator winding both can realize that triangle connects, and also can realize Y-connection.
During starting operation, the described stator winding number of turn that whenever is in series adopts few number of turn scheme; Number of turn scheme in adopting when realization moves than underload; Adopt multiturn to count scheme when realizing underloading or rated load operation.
Whenever be in series few number of turn of the number of turn, the middle number of turn, many turn ratios of described stator winding is 2:3:4, when realizing starting operation, adopts few number of turn scheme of the winding that whenever is in parallel.
Beneficial effect
The utility model provides a kind of many windings to become the power induction machine, when it has realized the two Power operation of motor double winding, the stator winding that motor is set whenever is in series the number of turn for lacking the number of turn and multiturn number, and no matter the described motor stator winding number of turn that whenever is in series is few number of turn or multiturn number, its space all is three-phase symmetric winding, after passing into the three-phase symmetrical electric current, formed magnetic field is circular rotating field.
Few number of turn and the multiturn of described motor stator winding are counted the common source input, and draw tap at the other end of few number of turn and multiturn number; Described stator winding both can realize that triangle connects, and also can realize Y-connection; When described stator winding adopts few number of turn scheme, realize starting or rated power operation, when adopting multiturn to count scheme, realize light running; When few number of turn of described stator winding and many turn ratios were 1:2, starting or rated load operation adopted few number of turn scheme of the winding that whenever is in parallel.
When realizing motor three windings three Power operation, the stator winding that motor is set whenever is in series the number of turn for lacking the number of turn, the middle number of turn and multiturn number, and no matter the described motor stator winding number of turn that whenever is in series is few number of turn, the middle number of turn or multiturn number, its space all is three-phase symmetric winding, after passing into the three-phase symmetrical electric current, formed magnetic field is circular rotating field.
Few number of turn of described motor stator winding, the middle number of turn and multiturn are counted the common source input, and draw tap at the other end of few number of turn, the middle number of turn and multiturn number; Described stator winding both can realize that triangle connects, and also can realize Y-connection; When described stator winding adopts few number of turn scheme, realize starting or rated power operation, during number of turn scheme, realize when adopting multiturn to count scheme, realizing light running than the underload operation in the employing; When few number of turn of described stator winding and many turn ratios were 1:2, starting or rated load operation adopted few number of turn scheme of the winding that whenever is in parallel.
Because when electric motor starting, rated voltage is added in the binding post two ends of the minimum motor winding of the number of turn that whenever is in series, winding master, leakage reactance minimum, and main flux and rotor current are large, starting torque and the breakdown torque of motor are large, are enough to make motor to start smoothly when static.When long-time running, be added in the binding post two ends of the different motor winding of the number of turn that whenever is in series according to the large young pathbreaker's rated voltage of actual loading, and load is lighter, the number of turn that whenever is in series in the motor winding is more.Because whenever the number of turn that is in series is more, the principal reactance of motor is larger, and exciting current is less, and main flux is less, so that the corresponding minimizing of the magnetic hysteresis loss of motor, eddy current loss and stator copper loss, has effectively improved efficient and the power factor of motor.Therefore, the operation occasion of the most suitable heavy duty starting of the utility model, underload long-time running, and energy-saving effect is remarkable
Characteristics of the present utility model are specifically: by the many taps of motor winding design with change the motor stator winding number of turn that whenever is in series, under different ruuning situations, rated voltage is continuous from different taps, make motor in output power demand and torque, various losses have effectively been reduced, reached the purpose of saves energy, thereby large, the inefficient defective of loss when having avoided the motor low load with strong power efficient and the power factor of motor have effectively been improved.
Description of drawings
Fig. 1 is the phase winding schematic diagram of the every extremely every phase groove of the utility model motor when counting q=2;
Fig. 2 is the phase winding schematic diagram of the every extremely every phase groove of the utility model motor when counting q=3;
Fig. 3 is the phase winding schematic diagram of the every extremely every phase groove of the utility model motor when counting q=4;
Fig. 4 is the every phase winding of the utility model stator winding and draws the tap schematic diagram;
Winding connection method schematic diagram when Fig. 5 is the utility model stator winding triangle connection rated power operation;
Fig. 6 is the utility model stator winding triangle winding connection method schematic diagram when connecting 63% rated power operation;
Fig. 7 is the utility model stator winding triangle winding connection method schematic diagram when connecting 38% rated power operation;
Fig. 8 is the utility model stator winding triangle winding connection method schematic diagram when connecting when in parallel rated power operation;
Winding connection method schematic diagram when Fig. 9 is the utility model stator winding Y-connection rated power operation;
Winding connection method schematic diagram when Figure 10 is the utility model stator winding Y-connection 63% rated power operation;
Winding connection method schematic diagram when Figure 11 is the utility model stator winding Y-connection 38% rated power operation;
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing this motor is described in further details.
The utility model provides a kind of many windings to become the power induction machine, include three-phase induction motor, the form of motor stator winding is a kind of in following two kinds of forms: when realizing the two Power operation of motor double winding, motor stator winding whenever is in series, and the number of turn is lacked in number of turn employing and multiturn is counted scheme, and few number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn and multiturn number; When realizing motor three windings three Power operation, motor stator winding whenever is in series, and the number of turn, the middle number of turn and multiturn are counted scheme less in number of turn employing, and few number of turn, the middle number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn, the middle number of turn and multiturn number.
The motor stator winding total number of turns that whenever is in series is N=N
1* q*p, wherein, N
1Be every groove number of turn, p is number of pole-pairs, and q is every extremely every phase groove number, and it is comprised of three parts, i.e. q=q
1+ q
2+ q
3, when the motor stator winding number of turn that whenever is in series is N=N
1* q
1* be the few number of turn situation during p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2) be the middle number of turn situation during * p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2+ q
3) be that multiturn is counted situation during * p.
No matter the described stator winding number of turn that whenever is in series is few number of turn, the middle number of turn or multiturn number, and its three phase winding is symmetrical, and formed magnetic field is circular rotating field.
Described stator winding both can realize that triangle connects, and also can realize Y-connection.
During starting operation, the described stator winding number of turn that whenever is in series adopts few number of turn scheme; Number of turn scheme in adopting when realization moves than underload; Adopt multiturn to count scheme when realizing underloading or rated load operation.
Whenever be in series few number of turn of the number of turn, the middle number of turn, many turn ratios of described stator winding is 2:3:4, when realizing starting operation, adopts few number of turn scheme of the winding that whenever is in parallel.
Embodiment 1
Implementing described in the utility model is the induction machine that a kind of many windings become power, on the basis of existing three-phase induction motor, realize the different capacity operation by the connection of change threephase stator winding and the number of turn that whenever is in series of phase winding, now take prototype machine as Y250M-6, making three windings, three power induction machines into is example, is described as follows:
Three windings, three power motors described in the utility model are that the number of turn that whenever is in series is several three kinds of few number of turn, the middle number of turn and multiturn, its concrete execution mode is: no matter the motor stator winding number of turn that whenever is in series is few number of turn, the middle number of turn or multiturn number, its space all is three-phase symmetric winding, and formed magnetic field is circular rotating field.Corresponding few number of turn is consistent or approach in whenever the be in series number of turn and the utility model of common three-phase induction motor, during operation steady in a long-term, according to the definite umber of turn that whenever is in series of driving load request.
Be illustrated in figure 1 as every extremely every phase groove and count the phase winding schematic diagram of q=2, its corresponding stator winding number of turn that whenever is in series is few number of turn, and the formed three phase windings winding that is space symmetr;
Be illustrated in figure 2 as every extremely every phase groove and count the phase winding schematic diagram of q=3, its corresponding stator winding number of turn that whenever is in series is the middle number of turn, and the formed three phase windings winding that is space symmetr;
Be illustrated in figure 3 as every extremely every phase groove and count the phase winding schematic diagram of q=4, its corresponding stator winding number of turn that whenever is in series is the multiturn number, and the formed three phase windings winding that is space symmetr;
Be as described in Figure 4 the every phase winding of stator winding and draw the tap schematic diagram, wherein draw tap A, B, C to be connected with three-phase symmetrical power respectively;
As shown in Figure 5, when electric motor starting or rated load operation, adopt every phase winding to be few number of turn scheme, stator winding adopts delta connection, A(Z2), B(X2), C (Y2) is connected with three-phase symmetrical power respectively;
As shown in Figure 6, when motor-driven during than underload (such as 63% nominal load), adopting every phase winding is middle number of turn scheme, and stator winding adopts delta connection, A(Z3), B(X3), C (Y3) is connected with three-phase symmetrical power respectively;
As shown in Figure 7, when motor-driven underload (such as 38% nominal load), adopting every phase winding is that multiturn is counted scheme, and stator winding adopts delta connection, A(Z4), B(X4), C (Y4) is connected with three-phase symmetrical power respectively;
As shown in Figure 8, when the ratio of few number of turn of the every phase winding of motor and multiturn number is 1:2, when starting or rated load operation, adopt few number of turn scheme of the winding that whenever is in parallel, in order to take full advantage of winding, stator winding adopts delta connection, A(Z2, X4), B(X2, Y4), C (Y2, Z4) is connected with three-phase symmetrical power respectively;
As shown in Figure 9, when electric motor starting or rated load operation, adopt every phase winding to be few number of turn scheme, stator winding adopts star connection, and A, B, C are connected with three-phase symmetrical power respectively, X2, and Y2, the Z2 tap interconnects;
As shown in figure 10, when motor-driven during than underload (such as 63% nominal load), adopting every phase winding is middle number of turn scheme, and stator winding adopts star connection, and A, B, C are connected with three-phase symmetrical power respectively, X3, and Y3, the Z3 tap interconnects;
As shown in figure 11, when motor-driven underload (such as 38% nominal load), adopting every phase winding is that multiturn is counted scheme, and stator winding adopts star connection, and A, B, C are connected with three-phase symmetrical power respectively, X4, and Y4, the Z4 tap interconnects;
When the ratio of few number of turn of the every phase winding of motor and multiturn number is 1:2, when starting or rated load operation, adopt few number of turn scheme of the winding that whenever is in parallel, stator winding adopts star connection, A(X4), B(Y4), C (Z4) is connected with three-phase symmetrical power respectively, X2, Y2, the Z2 tap interconnects.
Embodiment 2
Implementing the two power motors of double winding is whenever to be in series the number of turn for lacking several two kinds of the number of turn and multiturn, its concrete execution mode is: no matter the motor stator winding number of turn that whenever is in series is few number of turn or multiturn number, its space all is three-phase symmetric winding, and formed magnetic field is circular rotating field.Corresponding few number of turn is consistent or approach in whenever the be in series number of turn and the utility model of common three-phase induction motor, and during for a long time low load stable operation, the umber of turn that whenever is in series adopts multiturn to count scheme.
Claims (6)
1. winding more than a kind becomes the power induction machine, include three-phase induction motor, it is characterized in that: the form of motor stator winding is a kind of in following two kinds of forms: when realizing the two Power operation of motor double winding, motor stator winding whenever is in series, and the number of turn is lacked in number of turn employing and multiturn is counted scheme, and few number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn and multiturn number; When realizing motor three windings three Power operation, motor stator winding whenever is in series, and the number of turn, the middle number of turn and multiturn are counted scheme less in number of turn employing, and few number of turn, the middle number of turn and multiturn are counted the common source input, and draw respectively tap at the other end of few number of turn, the middle number of turn and multiturn number.
2. a kind of many windings according to claim 1 become the power induction machines, it is characterized in that: the motor stator winding total number of turns that whenever is in series is N=N
1* q*p, wherein, N
1Be every groove number of turn, p is number of pole-pairs, and q is every extremely every phase groove number, and it is comprised of three parts, i.e. q=q
1+ q
2+ q
3, when the motor stator winding number of turn that whenever is in series is N=N
1* q
1* be the few number of turn situation during p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2) be the middle number of turn situation during * p, when the motor stator winding number of turn that whenever is in series is N=N
1* (q
1+ q
2+ q
3) be that multiturn is counted situation during * p.
3. a kind of many windings according to claim 1 and 2 become the power induction machines, it is characterized in that: no matter the described stator winding number of turn that whenever is in series is few number of turn, the middle number of turn or multiturn number, and its three phase winding is symmetrical, and formed magnetic field is circular rotating field.
4. a kind of many windings according to claim 1 and 2 become the power induction machine, it is characterized in that: described stator winding both can realize that triangle connects, and also can realize Y-connection.
5. a kind of many windings according to claim 1 and 2 become the power induction machines, it is characterized in that: during starting operation, the described stator winding number of turn that whenever is in series adopts few number of turn scheme; Number of turn scheme in adopting when realization moves than underload; Adopt multiturn to count scheme when realizing underloading or rated load operation.
6. a kind of many windings according to claim 4 become the power induction machine, it is characterized in that: whenever be in series few number of turn of the number of turn, the middle number of turn, many turn ratios of described stator winding is 2:3:4, when realizing starting operation, adopt few number of turn scheme of the winding that whenever is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638447 CN203261208U (en) | 2012-11-28 | 2012-11-28 | Multiple winding variable power induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638447 CN203261208U (en) | 2012-11-28 | 2012-11-28 | Multiple winding variable power induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261208U true CN203261208U (en) | 2013-10-30 |
Family
ID=49473746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638447 Expired - Fee Related CN203261208U (en) | 2012-11-28 | 2012-11-28 | Multiple winding variable power induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261208U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI552505B (en) * | 2014-10-03 | 2016-10-01 | Mobiletron Electronics Co Ltd | Variable structure motor and its driving circuit |
| CN107231050A (en) * | 2016-08-17 | 2017-10-03 | 中国石油天然气股份有限公司 | Motor |
| CN108306473A (en) * | 2017-12-27 | 2018-07-20 | 华中科技大学 | A kind of setting method of line-start permanent magnetic synchronous motor winding |
| CN108306471A (en) * | 2018-03-06 | 2018-07-20 | 崔金益 | A kind of threephase asynchronous machine winding construction |
| WO2018209778A1 (en) * | 2017-05-17 | 2018-11-22 | 蔚来汽车有限公司 | Motor stator assembly, motor, and electric vehicle having motor |
| CN113708534A (en) * | 2021-08-30 | 2021-11-26 | 常州工学院 | Winding multi-tap motor capable of realizing multistage frequency doubling speed regulation and tap connection method thereof |
-
2012
- 2012-11-28 CN CN 201220638447 patent/CN203261208U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI552505B (en) * | 2014-10-03 | 2016-10-01 | Mobiletron Electronics Co Ltd | Variable structure motor and its driving circuit |
| CN107231050A (en) * | 2016-08-17 | 2017-10-03 | 中国石油天然气股份有限公司 | Motor |
| WO2018209778A1 (en) * | 2017-05-17 | 2018-11-22 | 蔚来汽车有限公司 | Motor stator assembly, motor, and electric vehicle having motor |
| US10848020B2 (en) | 2017-05-17 | 2020-11-24 | Nio Nextev Limited | Motor stator assembly, motor and electric vehicle having the same |
| CN108306473A (en) * | 2017-12-27 | 2018-07-20 | 华中科技大学 | A kind of setting method of line-start permanent magnetic synchronous motor winding |
| CN108306471A (en) * | 2018-03-06 | 2018-07-20 | 崔金益 | A kind of threephase asynchronous machine winding construction |
| CN113708534A (en) * | 2021-08-30 | 2021-11-26 | 常州工学院 | Winding multi-tap motor capable of realizing multistage frequency doubling speed regulation and tap connection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20151128 |