CN2149716Y - Doubly-feeding type series speed-adjusting asynchronous motor - Google Patents
Doubly-feeding type series speed-adjusting asynchronous motor Download PDFInfo
- Publication number
- CN2149716Y CN2149716Y CN 93230627 CN93230627U CN2149716Y CN 2149716 Y CN2149716 Y CN 2149716Y CN 93230627 CN93230627 CN 93230627 CN 93230627 U CN93230627 U CN 93230627U CN 2149716 Y CN2149716 Y CN 2149716Y
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- CN
- China
- Prior art keywords
- winding
- rotor
- scr
- stator
- feedback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a double-feeding type series speed-adjusting asynchronous motor, comprising mainly a casing, a power stator, a feeding stator and a double-feeding power inverter. The power stator and the feeding stator are arranged in the casing and both can generate electromagnetic induction with a rotor, the windings of the feeding stator forms the double-feeding power inverter which can feed electric energy to the electric network or receive electric energy from the electric network via a controlled silicon and an adjusting control device; the rotor adopts a segmental structure, which can satisfy the requirements of large-scale speed regulation of non-energy consumption, and the mechanical characteristic is not reduced after speed regulation.
Description
The utility model has been announced a kind of double-fed type tandem control asynchronous motor, and particularly a kind of double-fed type tandem control winding asynchronous motor belongs to electromechanical engineering field.
The speed governing of existing winding motors or adopt the resistance speed governing of slip-ring rotor string and chopping regulating speed or tandem control, this method or complex structure, environmental suitability is poor, belongs to energy-dissipating type, energy consumption height, efficient is low, mechanical energy is soft, does not meet energy-conservation needs.
For overcoming the existing above-mentioned defective of winding asynchronous motor, design provides a kind of energy-saving tandem control asynchronous motor of non-slip-ring type to the purpose of this utility model exactly, and its rotor structure also can obtain simplifying, and is convenient to make and safeguard.
The purpose of this utility model be achieved in that in motor, be provided with two with the corresponding stator of rotor, one of them is connected to three phase mains, another is connected to three phase mains through scalable power inverting feedback device; For implementing speed governing on a large scale better, the wound rotor that rotor of the present utility model can also adopt the number of phases to equate with its groove number; Also can adopt one group of two coaxial separation rotor, two rotor windings are connected in series mutually, and the stator that is connected to the power inverting feedback device can be symmetrical three phase windings, also can be symmetrical six phase windings.
The induction effect that the utility model has the advantages that utilization of feedback stator and rotor seals in the rotor loop adjusting to the slip electromotive force, need not slip ring, simple in structure, particularly realized tandem control to electrical network feedback slip power, owing to adopt feedback device, can realize that power supply to two stator feeds, has increased adjustable range, strengthen mechanical characteristics of motor hardness.
Accompanying drawing 1: the utility model motor partial schematic sectional view.
Accompanying drawing 2: power inverting double-fed device 9 schematic diagrames of the present utility model.
In the accompanying drawing: 1-motor case, the stator core of 2-power, 3-power stator winding, 4-feedback stator core, 5-feedback stator winding, 6-rotor core, 7-rotor winding, 8-rotating shaft, the contrary multiple two feedback devices of 9-power, 10-support, SCR
1-SCR
4-silicon controlled crystal brake pipe group, 11-reactor, 12,13-scalable control device (switch).
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.
The utility model comprises motor case 1, power stator core 2, power stator winding 3, rotor core 6, rotor winding 7, rotating shaft 8, support 11 compositions, wherein, the feedback stator that feedback stator core 4 and winding 5 are formed also is housed on the casing of respective rotor iron core 6 and rotor winding 7, and feedback stator winding 5 is connected to power supply after lead-out wire is connected to power inverting double-fed device 9.The two feedback devices 9 of power inverting are by the SCR that is subjected to scalable control (controllable silicon) device (switch) 12,13 controls
1And SCR
3Feedback net output circuit and SCR with smoothing reactor 11 compositions of connecting
2And SCR
4That forms is subjected to and can forms by input circuit; Rotor core 6 can adopt the two-section segmentation coaxial configuration of correspondence, power stator core 2 and winding 3 and feedback stator core 4 and winding 5 thereof respectively, and its rotor winding 7 correspondences are connected across on the two-stage rotor; No matter the rotor in the utility model 6 is the two-part or a bodily form, the Wound-rotor type structure that all can adopt its winding 7 numbers of phases to equate with the groove number of rotor 6; Feedback stator winding 5 can adopt symmetrical three-phase to distribute, and also can adopt symmetrical six phase windings to distribute, corresponding SCR
1, SCR
3Be three-phase or six phase silicon controlled crystal brake pipes composition.
When using the utility model, routinely power of motor stator winding 3 is connected on the three-phase power line, the output (going into) of the two feedback devices of power inverting is terminated on the three-phase power line, according to motor operation needs, when reduction of speed, regulate adjustable control means (switch) 12, make feedback stator winding 5 through SCR
1-SCR
3, reactor 11 is to grid transmission; When the need speedup, close scalable control device (switch) 12, open and regulate adjustable control means (switch) 13, make electrical network through SCR
2-SCR
4Send electricity to feedback stator winding 5, promptly motor is in two stator feed running statuses.When motor reduction of speed or speedup, only need regulate adjustable control means (switch) 12,13 respectively, regulate SCR then
1-SCR
3And SCR
2-SCR
4The angle of flow, can implement on a large scale, the speed governing of hard mechanical property.
The utility model adopts the segmentation rotor core, owing to realized double-fed, speed adjustable range greatly improves, capacity motor can be fully used, because the wound rotor structure that adopts the groove number and the number of phases to equate, the hardness and the starting performance of mechanical property are better, and under not additional starting equipment condition, starting potential can be started from scratch.
Claims (5)
1, a kind of double-fed type string machine speed-regulating asynchronous motor, form by casing 1, power stator core 2, power stator winding 3, rotating shaft 8, rotor core 6 and rotor winding 7, it is characterized in that being equipped with in the casing 1 one and can produce the feedback stator core 4 of taking back feedback winding 5 of mutual electromagnetic induction with rotor core 6,5 phase-splittings of feedback winding are connected to SCR
1With smoothing reactor 11 and SCR
3That forms presents shifting circuit and is connected in SCR to electrical network
2And SCR
4Form accept the electrical network electric energy be subjected to can circuit on.
2, motor as claimed in claim 1, it is characterized in that described rotor core 6 for common rotor winding 7 arranged and be divided into the two-part structure that corresponds respectively to power stator core 2 and winding 3 and feedback stator core 6 and winding 7.
3, motor as claimed in claim 1 or 2 is characterized in that the phase-wound rotor that described rotor core 6 and rotor winding 7 equates with groove number on the rotor core 6 for the number of phases of rotor winding 7.
4, motor as claimed in claim 1 or 2 is characterized in that described feedback stator winding 5 is three-phase symmetrical distribution winding, and SCR
1And SCR
4Form by three-phase thyristor respectively.
5, motor as claimed in claim 1 or 2 is characterized in that described feedback stator winding 5 is six symmetrical distributed winding, and SCR
1And SCR
2Form by six phase thyristors respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230627 CN2149716Y (en) | 1993-04-09 | 1993-04-09 | Doubly-feeding type series speed-adjusting asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230627 CN2149716Y (en) | 1993-04-09 | 1993-04-09 | Doubly-feeding type series speed-adjusting asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2149716Y true CN2149716Y (en) | 1993-12-15 |
Family
ID=33807241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93230627 Expired - Fee Related CN2149716Y (en) | 1993-04-09 | 1993-04-09 | Doubly-feeding type series speed-adjusting asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2149716Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624178A (en) * | 2012-05-09 | 2012-08-01 | 中国矿业大学 | Brushless double-fed asynchronous motor |
| CN111756173A (en) * | 2019-03-29 | 2020-10-09 | 湖南中车时代电动汽车股份有限公司 | Double-winding six-phase motor |
| CN114069998A (en) * | 2021-11-23 | 2022-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Asynchronous motor and speed regulation method thereof |
-
1993
- 1993-04-09 CN CN 93230627 patent/CN2149716Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624178A (en) * | 2012-05-09 | 2012-08-01 | 中国矿业大学 | Brushless double-fed asynchronous motor |
| CN111756173A (en) * | 2019-03-29 | 2020-10-09 | 湖南中车时代电动汽车股份有限公司 | Double-winding six-phase motor |
| CN114069998A (en) * | 2021-11-23 | 2022-02-18 | 上海电机系统节能工程技术研究中心有限公司 | Asynchronous motor and speed regulation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |