CN1753284A - Bistator single rotor disk type brushless double feed ulternating current electric motor - Google Patents
Bistator single rotor disk type brushless double feed ulternating current electric motor Download PDFInfo
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- CN1753284A CN1753284A CN 200510047247 CN200510047247A CN1753284A CN 1753284 A CN1753284 A CN 1753284A CN 200510047247 CN200510047247 CN 200510047247 CN 200510047247 A CN200510047247 A CN 200510047247A CN 1753284 A CN1753284 A CN 1753284A
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Abstract
A double stator and a single rotor disk brushless double feed AC motor includes two stators, one rotor, a rotor frame, a shaft, a bearing, an end cover and a shell, among which, the bearing and the left end cover are installed orderly from inside to outside on the left end of the shaft, the left stator is fixed on the left end cover, a bearing and a right end cover are installed from inside to outside on the right end of the shaft, the right stator is fixed on the right end cover, the rotor frame, the rotor and a shell are installed on the middle of the shaft vertically from inside to outside, in which, the rotor iron core is opened with a slot on double sides for inserting two sets of three-phase symmetric rotor windings with the pole numbers of 2p and 2q then to be connected to a set of rotor winding in inversion or homophase, the two stator cores are opened with a slot on one side for inserting two independent three-phase symmetric windings with the pole numbers of 2p and 2q.
Description
Technical field
The invention belongs to a kind of motor, particularly a kind of pair of stator, single rotor disc type brushless double feed alternating current machine.This motor is a kind of general-purpose machine, is suitable for using as asynchronous machine, synchronous machine and double-fed frequency control motor.Can under brushless reliable situation, realize all functions of wire-wound asynchronous motor, electric excitation synchronous motor, when using, can realize carrying out frequency control with the more powerful motor of frequency converter driving of smaller power as the double-fed frequency control motor.
Background technology
Existing brushless double feed alternating current machine mainly contains two kinds of structural shapes.A kind of have the tandem brushless double feed alternating current machine that the wound type induction motor of conventional inside and outside rotor is formed by 2 different numbers of poles, and coaxial on the rotor mechanical of two motors, its rotor winding is with phase sequence or negative-phase sequence connection; Another kind is the magnetic field modulation formula brushless double feed alternating current machine that grows up on above-mentioned tandem brushless double feed alternating current machine basis, embed the stator winding of the different numbers of poles of 2 covers in the shared stator core of this motor simultaneously, the coupling between the two cover stator winding is to realize by special concentric type cage-type rotor or reluctance rotor.The common advantage of above-mentioned two kinds of motors, the one, brushless reliable on the structure, the 2nd, can drive more powerful buncher with the frequency converter of smaller power.
Yet, because the existence of end winding, axial length is long to be the major defect of tandem brushless double feed alternating current machine, limited its applying in some occasion, and mechanical structure relative complex, but the coupling between its two covers rotor winding is better, and the power density and the energy index of motor are higher, to the number of poles combination of two motors without any restriction; And the structure of magnetic field modulation formula brushless double feed alternating current machine is simple relatively, axial length and conventional alternating current machine are similar, but the coupling between the two cover windings is relatively poor, harmonic field in the motor is abundant, supplementary load loss are bigger, therefore the power density and the energy index of motor are lower, and require the number of poles difference of two cover stator winding must be more than or equal to 4, so the number of poles of motor combination and be restricted with leg speed.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of disc type brushless double feed alternating current machine with two stators, single rotor.The advantage that this kind motor has existing brushless double feed alternating current machine concurrently, not only axial length is short, simple in structure, and two the coupling of cover between the winding better, the power density and the energy index of motor are higher, to the numbers of poles combination of two cover stator winding without any restriction.
Motor provided by the invention comprises two stators, rotor, rotor field spider, rotating shaft, bearing, end cap, casing.This machine shaft left end is equipped with bearing and left end cap from inside to outside successively, left side stator is fixed on the left end cap, the rotating shaft right-hand member is equipped with bearing and right end cap from inside to outside successively, right stator is fixed on the right end cap, and the rotating shaft middle part vertically is equipped with rotor field spider, rotor and casing from inside to outside successively.Left end cap, left stator, casing, right end cap, right stator and connector are formed the stator system structure jointly; The rotor rotary system is formed in rotor and corresponding rotor field spider and rotating shaft jointly.Rotor core double surface grooving wherein is respectively the two cover three-phase symmetric rotor windings of 2p and 2q to embed number of poles, and then negative-phase sequence or connect with phase sequence and to form a cover rotor winding; And two equal one-side gainings of stator core, and embed the independence three symmetrical stator winding that number of poles is respectively 2p and 2q respectively.The tandem that whole motor is equivalent to 2p and the 2q utmost point motor during operation connects, and when two cover rotor winding negative-phase sequences linked to each other, the equivalent number of poles of motor be (2p+2q), and when two cover rotor windings were continuous with phase sequence, the equivalent number of poles of motor was (2p-2q).When moving, can be respectively 2p and 2q utmost point stator winding feed with three-phase main-frequency alternating current and variable frequency power supply as frequency control motor.When moving as induction machine, 2p utmost point stator winding is directly by the common frequency power network feed, the stator winding short circuit of the 2q utmost point.When moving as synchronous machine, 2p utmost point stator winding is still by the common frequency power network feed, and the stator winding of the 2q utmost point is by DC power supply.
The special stator and rotor sructure of disc type brushless double feed alternating current machine, obtained beyond thought special-effect, be mainly reflected in: brushless reliable on (1) structure, (2) have all advantages and the function of wire-wound asynchronous motor and electric excitation synchronous motor, (3) can realize asynchronous machine, multiple operational modes such as synchronous machine and double-fed frequency control motor, (4) since about two disc type unit motors have identical number of poles respectively, coupling ability between its rotor winding improves greatly, and the magnetic field harmonic wave can design very for a short time, so the power density of motor and operational efficiency are higher; Must limit more than or equal to 4 number of poles by (2p-2q), the number of poles combination is more flexible, can be designed to have its axial length of higher synchronous speed (6) and shorten greatly, and structural design implements easier.
Description of drawings
Fig. 1 is an electric machine structure schematic diagram of the present invention;
Fig. 2 is an electric machine iron core end view of the present invention;
Among the figure: 1 left end cap, 2 left stators, 3 rotors, 4 right stators, 5 bearings, 6 rotating shafts, 7 right end caps, 8 casings, 9 rotor field spiders.
Embodiment
Below in conjunction with accompanying drawing motor of the present invention is described in further details.
As shown in Figure 1, motor of the present invention comprises left end cap 1, left stator 2, rotor 3, right stator 4, bearing 5, rotating shaft 6, right end cap 7, casing 8, rotor field spider 9.Wherein machine shaft 6 left ends are equipped with bearing 5 and left end cap 1 from inside to outside successively, left side stator 2 is fixed on the left end cap 1, rotating shaft 6 right-hand members are equipped with bearing 5 and right end cap 7 from inside to outside successively, right stator 4 is fixed on the right end cap 7, and rotating shaft 6 middle parts vertically are equipped with rotor field spider 9, rotor 3 and casing 8 from inside to outside successively.Left end cap 1, left stator 2, casing 8, right end cap 7, right stator 4 and connector are formed the stator system structure jointly, rotor 3 and corresponding rotor field spider 9 and the rotating shaft 6 common rotor rotary systems of forming.
End face of iron core as shown in Figure 2, rotor core double surface grooving wherein is respectively the two cover three-phase symmetric rotor windings of 2p and 2q to embed number of poles, and then negative-phase sequence or connect with phase sequence and to form a cover rotor winding; And two equal one-side gainings of stator core, and embed the independence three symmetrical stator winding that number of poles is respectively 2p and 2q respectively.The tandem that whole motor is equivalent to 2p and the 2q utmost point motor during operation connects, and when two cover rotor winding negative-phase sequences linked to each other, the equivalent number of poles of motor be (2p+2q), and when two cover rotor windings were continuous with phase sequence, the equivalent number of poles of motor was (2p-2q).When moving, can be respectively 2p and 2q utmost point stator winding feed with three-phase main-frequency alternating current and variable frequency power supply as frequency control motor.When moving as induction machine, 2p utmost point stator winding is directly by the common frequency power network feed, the stator winding short circuit of the 2q utmost point.When moving as synchronous machine, 2p utmost point stator winding is still by the common frequency power network feed, and the stator winding of the 2q utmost point is by DC power supply.
Claims (3)
1, a kind of pair of stator, single rotor disc type brushless double feed alternating current machine, comprise two stators, rotor, rotor field spider, rotating shaft, bearing, end cap, casing, it is characterized in that, this machine shaft left end is equipped with bearing and left end cap from inside to outside successively, left side stator is fixed on the left end cap, the rotating shaft right-hand member is equipped with bearing and right end cap from inside to outside successively, and right stator is fixed on the right end cap, and the rotating shaft middle part vertically is equipped with rotor field spider, rotor and casing from inside to outside successively.
2, the as claimed in claim 1 pair of stator, single rotor disc type brushless double feed alternating current machine, the double surface grooving unshakable in one's determination that it is characterized in that described rotor, be respectively the two cover three-phase symmetric rotor windings of 2p and 2q to embed number of poles, and then negative-phase sequence or connect with phase sequence and to form a cover rotor winding.
3, the as claimed in claim 1 pair of stator, single rotor disc type brushless double feed alternating current machine is characterized in that all one-side gainings unshakable in one's determination of described two stators, and embed the independence three symmetrical stator winding that number of poles is respectively 2p and 2q respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510047247XA CN100568677C (en) | 2005-09-20 | 2005-09-20 | A kind of pair of stator, single rotor disc type brushless double feed alternating current machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510047247XA CN100568677C (en) | 2005-09-20 | 2005-09-20 | A kind of pair of stator, single rotor disc type brushless double feed alternating current machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1753284A true CN1753284A (en) | 2006-03-29 |
| CN100568677C CN100568677C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510047247XA Expired - Fee Related CN100568677C (en) | 2005-09-20 | 2005-09-20 | A kind of pair of stator, single rotor disc type brushless double feed alternating current machine |
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| CN (1) | CN100568677C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764491A (en) * | 2008-12-24 | 2010-06-30 | 徐隆亚 | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof |
| CN102545502A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Dual-stator brushless double-fed motor |
| CN102545501A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Axial dual-stator brushless double-fed motor |
| CN104467277A (en) * | 2015-01-08 | 2015-03-25 | 张志雄 | Flame-proof type disc copper alloy flat belt pulley motor |
| CN104467278A (en) * | 2015-01-08 | 2015-03-25 | 张志雄 | Chromium alloy disc triangular belt wheel motor |
| CN105743308A (en) * | 2016-04-18 | 2016-07-06 | 合肥工业大学 | High-power-density permanent magnet dual-stator brushless doubly-fed motor |
| CN104767423B (en) * | 2014-01-03 | 2017-03-15 | 财团法人交大思源基金会 | electric motor |
| CN109391110A (en) * | 2017-08-08 | 2019-02-26 | 擎声自动化科技（上海）有限公司 | A kind of disc type electric machine structure |
| CN110323906A (en) * | 2019-08-01 | 2019-10-11 | 上海大学 | A kind of axial flux permanent magnet synchronous motor mixing slot number |
| CN113765258A (en) * | 2021-08-18 | 2021-12-07 | 上海大学 | Composite multidirectional coreless disc type motor |
| DE102022212659A1 (en) | 2022-11-28 | 2024-05-29 | Zf Friedrichshafen Ag | Synchronous machine and vehicle |
-
2005
- 2005-09-20 CN CNB200510047247XA patent/CN100568677C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764491B (en) * | 2008-12-24 | 2014-04-16 | 徐隆亚 | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof |
| CN101764491A (en) * | 2008-12-24 | 2010-06-30 | 徐隆亚 | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof |
| CN102545502A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Dual-stator brushless double-fed motor |
| CN102545501A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Axial dual-stator brushless double-fed motor |
| CN104767423B (en) * | 2014-01-03 | 2017-03-15 | 财团法人交大思源基金会 | electric motor |
| CN104467277A (en) * | 2015-01-08 | 2015-03-25 | 张志雄 | Flame-proof type disc copper alloy flat belt pulley motor |
| CN104467278A (en) * | 2015-01-08 | 2015-03-25 | 张志雄 | Chromium alloy disc triangular belt wheel motor |
| CN105743308A (en) * | 2016-04-18 | 2016-07-06 | 合肥工业大学 | High-power-density permanent magnet dual-stator brushless doubly-fed motor |
| CN109391110A (en) * | 2017-08-08 | 2019-02-26 | 擎声自动化科技（上海）有限公司 | A kind of disc type electric machine structure |
| CN110323906A (en) * | 2019-08-01 | 2019-10-11 | 上海大学 | A kind of axial flux permanent magnet synchronous motor mixing slot number |
| CN113765258A (en) * | 2021-08-18 | 2021-12-07 | 上海大学 | Composite multidirectional coreless disc type motor |
| CN113765258B (en) * | 2021-08-18 | 2023-10-13 | 上海大学 | Composite multidirectional coreless disc motor |
| DE102022212659A1 (en) | 2022-11-28 | 2024-05-29 | Zf Friedrichshafen Ag | Synchronous machine and vehicle |
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| Publication number | Publication date |
|---|---|
| CN100568677C (en) | 2009-12-09 |
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Granted publication date: 20091209 Termination date: 20110920 |