CN1822477A - Single phase induction motor with negative sequence suppression winding - Google Patents
Single phase induction motor with negative sequence suppression winding Download PDFInfo
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- CN1822477A CN1822477A CN 200610042444 CN200610042444A CN1822477A CN 1822477 A CN1822477 A CN 1822477A CN 200610042444 CN200610042444 CN 200610042444 CN 200610042444 A CN200610042444 A CN 200610042444A CN 1822477 A CN1822477 A CN 1822477A
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- winding
- induction motor
- monocyclic
- rotor
- negative
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- Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Present invention discloses a single phase induction motor with negative sequence suppress winding. It solves large problem negative sequence current in current single phase induction motor, having advantage of effectively suppressing negative sequence current. It contains casing, shaft installed in casing, rotor stator installed on shaft, stator consisting of stator core and armature winding, said armature winding connected with compensation winding, two windings series connected in negative phase sequence.
Description
Technical field
The present invention relates to a kind of motor, relate in particular to a kind of monocyclic-start induction motor that suppresses winding with negative phase-sequence.
Background technology
2 armature winding are arranged on the stator of common monocyclic-start induction motor, and promptly main winding and auxiliary winding by the electric capacity phase shift, make electric current difference in the major-minor winding, thereby produce rotating magnetic field.Generally, negative-sequence current is bigger in the stator winding.Even make it under a certain load, eliminate negative-sequence current by design, but under other load, still have negative-sequence current, cause problems such as efficient is low, temperature rise, starting performance difference.
Summary of the invention
Purpose of the present invention is exactly in order to solve the big problem of negative-sequence current in the present monocyclic-start induction motor, provides a kind of and has simple in structurely, and the band negative phase-sequence that can effectively suppress negative-sequence current suppresses the monocyclic-start induction motor of winding.
For achieving the above object, the present invention has adopted following technical scheme: a kind of monocyclic-start induction motor that suppresses winding with negative phase-sequence, it comprises casing, installation shaft in it, rotor is installed on axle, the stator that matches with rotor is installed in casing, stator is made up of stator core, at least one armature winding, also connect a corresponding compensation winding on described each armature winding, the series connection of two winding negative-phase sequences.
Described armature winding comprises two independent winding, the corresponding compensation winding of all connecting on each armature winding, and armature winding and compensation winding all are two phase windings.
Has at least one electric capacity of series connection in the described armature winding at least.
Described rotor is made up of rotor core and rotor winding.
The two ends of described casing are provided with end cap.
The end of described casing is provided with fan.
The present invention has increased by a cover compensation winding on the basis of common monocyclic-start induction motor, two phase windings of compensation winding are connected with original armature winding negative-phase sequence.The positive sequence impedance of armature winding is big, negative sequence impedance is little, and the positive sequence impedance of compensation winding is little, negative sequence impedance is big, therefore total negative sequence impedance increases, can effectively suppress the negative-sequence current that negative sequence voltage causes, and the compensation winding is less to the positive sequence current affects, thereby weaken the influence of negative-sequence current, improve its performance.
The invention has the beneficial effects as follows, simple in structure, can effectively suppress negative-sequence current, improve its performance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the winding connection diagram of compensation winding and compensation winding.
Wherein, 1. casing, 2. end cap, 3. spool, 4. fan, 5. stator core, 6. rotor winding, 7. armature winding, 8. compensation winding, 9. rotor core.
Embodiment
Monocyclic-start induction motor comprises casing 1 among Fig. 1, and there is end cap 2 at two ends, can establish fan 4 in one or two end of casing 1 and also can not establish fan 4.Axle 3 also is housed in the casing 1, on axle 3, rotor is installed.Its rotor is made up of rotor core 9 and rotor winding 6.Stator is made up of stator core 5 and armature winding 7, and compensation winding 8 is connected with armature winding 7 negative-phase sequences.
Among Fig. 2, armature winding 7 is composed in parallel by a pair of two phase windings, the corresponding compensation winding 8 of all connecting on each armature winding 7, and compensation winding 8 also is made of two phase windings, armature winding 7 and the series connection of compensation winding 8 negative-phase sequences.Has a series capacitance in the armature winding 7 at least.
Adopt structure of the present invention that a 120W monocyclic-start induction motor stator winding is transformed, other parts are constant, and efficient has improved 7 percentage points, and starting torque improves 18%.
Claims (6)
1, a kind of monocyclic-start induction motor that suppresses winding with negative phase-sequence, it comprises casing (1), installation shaft (3) in it, go up the installation rotor at axle (3), the stator that matches with rotor is installed in casing (1), stator is made up of stator core (5), at least one armature winding (7), it is characterized in that: also connect a corresponding compensation winding (8) on described each armature winding (7), the series connection of two winding negative-phase sequences.
2, band negative phase-sequence according to claim 1 suppresses the monocyclic-start induction motor of winding, it is characterized in that: described armature winding (7) comprises two independent winding, all connect on each armature winding corresponding one and compensate winding (8), armature winding (7) and compensation winding (8) all are two phase windings.
3, band negative phase-sequence according to claim 1 and 2 suppresses the monocyclic-start induction motor of winding, it is characterized in that: have at least one electric capacity of series connection in the described armature winding (7) at least.
4, band negative phase-sequence according to claim 1 suppresses the monocyclic-start induction motor of winding, and it is characterized in that: described rotor is made up of rotor core (9) and rotor winding (6).
5, band negative phase-sequence according to claim 1 suppresses the monocyclic-start induction motor of winding, and it is characterized in that: the two ends of described casing (1) are provided with end cap (2).
6, band negative phase-sequence according to claim 5 suppresses the monocyclic-start induction motor of winding, and it is characterized in that: the end of described casing (1) is provided with fan (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610042444 CN1822477A (en) | 2006-02-28 | 2006-02-28 | Single phase induction motor with negative sequence suppression winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610042444 CN1822477A (en) | 2006-02-28 | 2006-02-28 | Single phase induction motor with negative sequence suppression winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1822477A true CN1822477A (en) | 2006-08-23 |
Family
ID=36923591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610042444 Pending CN1822477A (en) | 2006-02-28 | 2006-02-28 | Single phase induction motor with negative sequence suppression winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1822477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488692B (en) * | 2009-02-26 | 2011-12-21 | 山东大学 | Three-winding single phase induction motor |
| CN102723833A (en) * | 2012-06-21 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Three-phase induction motor with unbalanced voltage compensation function |
-
2006
- 2006-02-28 CN CN 200610042444 patent/CN1822477A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488692B (en) * | 2009-02-26 | 2011-12-21 | 山东大学 | Three-winding single phase induction motor |
| CN102723833A (en) * | 2012-06-21 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Three-phase induction motor with unbalanced voltage compensation function |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20060823 |