CN114285240A - Double-stator multi-winding permanent magnet synchronous motor and use method thereof - Google Patents
Double-stator multi-winding permanent magnet synchronous motor and use method thereof Download PDFInfo
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- CN114285240A CN114285240A CN202111418880.0A CN202111418880A CN114285240A CN 114285240 A CN114285240 A CN 114285240A CN 202111418880 A CN202111418880 A CN 202111418880A CN 114285240 A CN114285240 A CN 114285240A
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Abstract
The invention discloses a double-stator multi-winding permanent magnet synchronous motor which comprises a shell, a first stator, a second stator, a first rotor, a second rotor and a speed controller assembly, wherein the first stator and the second stator are coaxially arranged in the shell, the first rotor and the second rotor are coaxially and integrally connected, the first rotor is rotatably arranged in the first stator, the second rotor is movably arranged in the second stator, the speed controller assembly is connected with the first stator and the second stator, and the first rotor and the second rotor are equally divided into three groups of coils with different pole pairs. The invention meets the full working condition that the loader needs large torque at low speed, high power and high efficiency at overspeed, and the working principle is that the windings between the double stators and the multiple windings are adopted to achieve high efficiency and high power by the mutual phase change of the controllers.
Description
Technical Field
The invention relates to the field of motors, in particular to a double-stator multi-winding permanent magnet synchronous motor.
Background
Because the existing permanent magnet synchronous motor has the condition that the speed regulation range is small, the flux weakening control is needed when the speed exceeds the rated rotating speed, the efficiency of the motor is reduced when the speed exceeds the rated rotating speed, the working time of the loader is shortened, the electric quantity of a battery is increased in the same time, and the cost of the existing battery cannot be reduced.
A double-stator multi-winding permanent magnet synchronous motor is needed to solve the above problems.
Disclosure of Invention
The invention provides a double-stator multi-winding permanent magnet synchronous motor, which aims to solve the problems that the speed regulation range of a permanent magnet synchronous motor in the prior art is small, the efficiency of the motor is reduced when the speed exceeds a rated rotating speed and needs to be subjected to weak magnetic control, the working time of a loader is shortened, the electric quantity of a battery needs to be increased in the same time, and the cost of the existing battery cannot be reduced.
The invention provides a double-stator multi-winding permanent magnet synchronous motor which comprises a shell, a first stator, a second stator, a first rotor, a second rotor and a speed controller assembly, wherein the first stator and the second stator are coaxially arranged in the shell;
the first stator comprises a first high-speed stator winding, a first medium-speed stator winding and a first high-speed stator winding, the first medium-speed stator winding and the first high-speed stator winding are mutually independently arranged at the same axial position in the shell, and the number of pole pairs of the first high-speed stator winding is smaller than that of the first medium-speed stator winding and is smaller than that of the first low-speed stator winding;
the second stator comprises a second high-speed stator winding, a second intermediate-speed stator winding and a second low-speed stator winding, the second high-speed stator winding, the second intermediate-speed stator winding and the second low-speed stator winding are independently arranged at the same axial position in the shell, and the number of pole pairs of the second high-speed stator winding is smaller than that of the second intermediate-speed stator winding and smaller than that of the second low-speed stator winding.
According to the double-stator multi-winding permanent magnet synchronous motor, as a preferred mode, the speed controller assembly comprises a motor controller and a speed sensor, the motor controller is connected with the speed sensor, the speed sensor is arranged at the tail end of the first rotor, and the motor controller controls the opening and closing of the first high-speed stator winding, the first medium-speed stator winding, the first low-speed stator winding, the second high-speed stator winding, the second medium-speed stator winding and the second low-speed stator winding.
According to the double-stator multi-winding permanent magnet synchronous motor, as a preferred mode, the first rotor and the second rotor are permanent magnets.
According to the double-stator multi-winding permanent magnet synchronous motor, as a preferred mode, the first high-speed stator winding, the first medium-speed stator winding and the first high-speed stator winding are all three groups of coils which are uniformly distributed on the inner wall of the shell.
According to the double-stator multi-winding permanent magnet synchronous motor, as a preferred mode, the second high-speed stator winding, the second medium-speed stator winding and the second low-speed stator winding are all three groups of coils which are uniformly distributed on the inner wall of the shell.
The invention relates to a using method of a double-stator multi-winding permanent magnet synchronous motor, which comprises the following steps:
s1, pre-calculating the rated power of the matching of each winding of the first stator and each winding of the second stator, introducing the calculated rated power into a motor controller, and arranging and combining the calculated rated power in the motor controller according to the power from large to small;
s2, electrifying the permanent magnet synchronous motor, and adjusting the motor to the required speed;
s3, keeping the current speed, and switching to the driving combination which meets the speed and is closest to the rated power through the motor controller;
s4, adjusting the motor size to each level, and selecting the combination mode with the highest motor efficiency to operate;
and S5, the motor receives the stop signal and stops.
The invention has the following beneficial effects:
(1) the permanent magnet synchronous motor adopts a multi-winding design, so that the power efficiency and the power factor are improved;
(2) the heating of the permanent magnet synchronous motor is small, so that the motor cooling system has a simple structure, a small volume and low noise;
(3) the system adopts a totally-enclosed structure, is free of lubricating oil and maintenance
Drawings
FIG. 1 is a schematic diagram of a dual stator multi-winding permanent magnet synchronous machine;
FIG. 2 is a first stator schematic diagram of a dual-stator multi-winding PMSM;
FIG. 3 is a schematic diagram of a second stator of a dual-stator multi-winding permanent magnet synchronous motor;
FIG. 4 is a schematic diagram of a dual stator multiple winding PMSM speed controller assembly;
fig. 5 is a flow chart of a method of using a dual-stator multi-winding permanent magnet synchronous motor.
Reference numerals:
1. a housing; 2. a first stator; 21. a first high speed stator winding; 22. a first intermediate speed stator winding; 23. a first low speed stator winding; 3. a second stator; 31. a second high speed stator winding; 32. a second intermediate speed stator winding; 33. a second low speed stator winding; 4. a first rotor; 5. a second rotor; 6. a speed controller assembly; 61. a motor controller; 62. a speed sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1, a double-stator multi-winding permanent magnet synchronous motor includes a housing 1, a first stator 2, a second stator 3, a first rotor 4, a second rotor 5 and a speed controller assembly 6, wherein the first stator 2 and the second stator 3 are coaxially disposed inside the housing 1, the first rotor 4 and the second rotor 5 are coaxially and integrally connected, the first rotor 4 is rotatably disposed inside the first stator 2, the second rotor 5 is movably disposed inside the second stator 3, and the speed controller assembly 6 is connected with the first stator 2 and the second stator 3.
As shown in fig. 2, the first stator 2 includes a first high-speed stator winding 21, a first intermediate-speed stator winding 22 and a first low-speed stator winding 23, the first high-speed stator winding 21, the first intermediate-speed stator winding 22 and the first low-speed stator winding 23 are independently arranged at the same axial position inside the housing 1, and the number of pole pairs of the first high-speed stator winding 21 is smaller than the number of pole pairs of the first intermediate-speed stator winding 22 and smaller than the number of pole pairs of the first low-speed stator winding 23;
as shown in fig. 3, the second stator 3 includes a second high-speed stator winding 31, a second intermediate-speed stator winding 32, and a second low-speed stator winding 33, the second high-speed stator winding 31, the second intermediate-speed stator winding 32, and the second low-speed stator winding 33 are independently disposed at the same axial position inside the housing 1, and the number of pole pairs of the second high-speed stator winding 31 is smaller than the number of pole pairs of the second intermediate-speed stator winding 32 and smaller than the number of pole pairs of the second low-speed stator winding 33.
As shown in fig. 4, the speed controller 6 includes a motor controller 61 and a speed sensor 62, the motor controller 61 is connected to the speed sensor 62, the speed sensor 62 is disposed at the tail end of the first rotor 4, and the motor controller 61 controls the opening and closing of the first high-speed stator winding 21, the first medium-speed stator winding 22, the first low-speed stator winding 23, the second high-speed stator winding 31, the second medium-speed stator winding 32, and the second low-speed stator winding 33.
The first rotor 4 and the second rotor 5 are permanent magnets. The first high-speed stator winding 21, the first medium-speed stator winding 22 and the first low-speed stator winding 23 are all three groups of coils uniformly distributed on the inner wall of the shell 1. The second high-speed stator winding 31, the second medium-speed stator winding 32 and the second low-speed stator winding 33 are all three groups of coils uniformly distributed on the inner wall of the shell 1.
As shown in fig. 5, a method for using a double-stator multi-winding permanent magnet synchronous motor includes the following steps:
s1, pre-calculating the rated power of the matching of each winding of the first stator 2 and each winding of the second stator 3, introducing the calculated rated power into the motor controller 61, and arranging and combining the calculated rated power in the motor controller 61 according to the power from large to small;
s2, electrifying the permanent magnet synchronous motor, and adjusting the motor to the required speed;
s3, keeping the current speed, and switching to the driving combination which meets the speed and is closest to the rated power through the motor controller 61;
s4, adjusting the motor size to each level, and selecting the combination mode with the highest motor efficiency to operate;
and S5, the motor receives the stop signal and stops.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a many windings of two stators PMSM which characterized in that: the speed controller comprises a shell (1), a first stator (2), a second stator (3), a first rotor (4), a second rotor (5) and a speed controller assembly (6), wherein the first stator (2) and the second stator (3) are coaxially arranged inside the shell (1), the first rotor (4) and the second rotor (5) are coaxially and integrally connected, the first rotor (4) is rotatably arranged in the first stator (2), the second rotor (5) is movably arranged in the second stator (3), and the speed controller assembly (6) is connected with the first stator (2) and the second stator (3);
the first stator (2) comprises a first high-speed stator winding (21), a first medium-speed stator winding (22) and a first low-speed stator winding (23), the first high-speed stator winding (21), the first medium-speed stator winding (22) and the first low-speed stator winding (23) are independently arranged at the same axial position in the shell (1), and the number of pole pairs of the first high-speed stator winding (21) is smaller than that of the first medium-speed stator winding (22) and is smaller than that of the first low-speed stator winding (23);
the second stator (3) comprises a second high-speed stator winding (31), a second medium-speed stator winding (32) and a second low-speed stator winding (33), the second high-speed stator winding (31), the second medium-speed stator winding (32) and the second low-speed stator winding (33) are independently arranged at the same axial position in the shell (1), and the number of pole pairs of the second high-speed stator winding (31) is smaller than that of the second medium-speed stator winding (32) and is smaller than that of the second low-speed stator winding (33).
2. A double stator multiple winding permanent magnet synchronous machine according to claim 1, characterized in that: the speed controller assembly (6) comprises a motor controller (61) and a speed sensor (62), the motor controller (61) is connected with the speed sensor (62), the speed sensor (62) is arranged at the tail end of the first rotor (4), and the motor controller (61) controls the opening and closing of the first high-speed stator winding (21), the first medium-speed stator winding (22), the first low-speed stator winding (23), the second high-speed stator winding (31), the second medium-speed stator winding (32) and the second low-speed stator winding (33).
3. A double stator multiple winding permanent magnet synchronous machine according to claim 2, characterized in that: the first rotor (4) and the second rotor (5) are permanent magnets.
4. A double stator multiple winding permanent magnet synchronous machine according to claim 1, characterized in that: the first high-speed stator winding (21), the first medium-speed stator winding (22) and the first low-speed stator winding (23) are three groups of coils which are uniformly distributed on the inner wall of the shell (1).
5. A double stator multiple winding permanent magnet synchronous machine according to claim 1, characterized in that: the second high-speed stator winding (31), the second medium-speed stator winding (32) and the second low-speed stator winding (33) are three groups of coils which are uniformly distributed on the inner wall of the shell (1).
6. A control method of a double-stator multi-winding permanent magnet synchronous motor is characterized by comprising the following steps:
s1, pre-calculating the rated power of the matching of each winding of the first stator (2) and each winding of the second stator (3), introducing the calculated rated power into the motor controller (61), and arranging and combining the windings in the motor controller (61) according to the power from large to small;
s2, electrifying the permanent magnet synchronous motor, and adjusting the motor to the required speed;
s3, keeping the current speed, and switching to the driving combination which meets the speed and is closest to the rated power through the motor controller (61);
s4, adjusting the motor size to each level, and selecting the combination mode with the highest motor efficiency to operate;
and S5, the motor receives the stop signal and stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418880.0A CN114285240A (en) | 2021-11-26 | 2021-11-26 | Double-stator multi-winding permanent magnet synchronous motor and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418880.0A CN114285240A (en) | 2021-11-26 | 2021-11-26 | Double-stator multi-winding permanent magnet synchronous motor and use method thereof |
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| CN114285240A true CN114285240A (en) | 2022-04-05 |
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| CN202111418880.0A Pending CN114285240A (en) | 2021-11-26 | 2021-11-26 | Double-stator multi-winding permanent magnet synchronous motor and use method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571249A (en) * | 2003-07-18 | 2005-01-26 | 中国科学院声学研究所 | A multi-output permanent-magnet generator having high-speed bistator and birotor |
| CN201204525Y (en) * | 2008-05-26 | 2009-03-04 | 北京天科伟业环境科技有限公司 | Integral multi-speed multi-power motor |
| CN101854089A (en) * | 2010-05-27 | 2010-10-06 | 张世兴 | Multi-winding motor and intelligent controller thereof |
| CN106992620A (en) * | 2017-06-09 | 2017-07-28 | 罗寿元 | Electric car multi winding multi speed magneto |
| CN107591923A (en) * | 2016-07-07 | 2018-01-16 | 张世兴 | A kind of Variable power motor and its intelligent controller |
-
2021
- 2021-11-26 CN CN202111418880.0A patent/CN114285240A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571249A (en) * | 2003-07-18 | 2005-01-26 | 中国科学院声学研究所 | A multi-output permanent-magnet generator having high-speed bistator and birotor |
| CN201204525Y (en) * | 2008-05-26 | 2009-03-04 | 北京天科伟业环境科技有限公司 | Integral multi-speed multi-power motor |
| CN101854089A (en) * | 2010-05-27 | 2010-10-06 | 张世兴 | Multi-winding motor and intelligent controller thereof |
| CN107591923A (en) * | 2016-07-07 | 2018-01-16 | 张世兴 | A kind of Variable power motor and its intelligent controller |
| CN106992620A (en) * | 2017-06-09 | 2017-07-28 | 罗寿元 | Electric car multi winding multi speed magneto |
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