CN102891580A - Three-phase two-pole brushless direct current motor - Google Patents
Three-phase two-pole brushless direct current motor Download PDFInfo
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- CN102891580A CN102891580A CN 201210442932 CN201210442932A CN102891580A CN 102891580 A CN102891580 A CN 102891580A CN 201210442932 CN201210442932 CN 201210442932 CN 201210442932 A CN201210442932 A CN 201210442932A CN 102891580 A CN102891580 A CN 102891580A
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Abstract
The invention discloses a three-phase two-pole brushless direct current motor and belongs to the technical field of motors. The three-phase two-pole brushless direct current motor comprises a sensor, an electronic commutation circuit and a motor body, wherein the sensor is connected with a spindle of the motor body; the sensor detects a position signal of a magnetic pole of a rotor relative to a stator winding so as to control the conducting sequence and time of each phase winding of a logic switch unit; the motor body mainly comprises two parts, namely a stator and a rotor; the stator winding is divided into a phase A, a phase B and a phase C; every two phases have a phase difference of 120 degrees and are connected in a star shape; and the three-phase windings are respectively connected with a corresponding power switching device in an electronic switching circuit. The three-phase two-pole brushless direct current motor has the advantages of simple structure, operation reliability and maintenance convenience and the characteristics of high operating efficiency and high speed-regulating performance, and excitation loss is avoided.
Description
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Technical field
The invention belongs to technical field of motors, particularly a kind of three-phase the two poles of the earth brshless DC motor.
Background technology
After the nineties in 20th century, the development of computer technology and control theory is very fast, the microprocessors such as single-chip microcomputer, digital signal processor (DSP), field programmable gate array (FPGA), CPLD (CPLD) have obtained unprecedented development, command speed and memory space have had qualitative leap, have further promoted the development of brshless DC motor.In addition, the control strategy that some are advanced and method such as fuzzy control, ANN Control, adaptive control and Active Disturbance Rejection Control etc., constantly are applied in the permanent magnetic brushless DC motor control system.These methods have improved the performance of permanent magnetic brushless DC motor control system at torque ripple inhibition, speed dynamic and the aspects such as steady-state response and system rejection to disturbance to a certain extent, enlarge the range of application of permanent magnetic brushless DC motor control system, also enriched simultaneously the intension of relevant control theory.
Summary of the invention
Deficiency for prior art exists the invention provides a kind of three-phase the two poles of the earth brshless DC motor.
Technical scheme of the present invention is achieved in that the structure of this three-phase the two poles of the earth brshless DC motor comprises transducer, electronics commutation circuit and motor body, and the main shaft of transducer and motor body is connected.Transducer detection rotor magnetic pole is with respect to the position signalling of stator winding, and then each phase winding conducting order and time of control logic switch element.Motor body mainly comprises stator and rotor two parts, surely gives winding and is divided into A, B, C three-phase, and 120 ° of employings of every phase phase phasic difference Y-connection, three phase windings are connected with corresponding device for power switching in the electronic switch circuit respectively; Rotor is comprised of N, S the two poles of the earth, and number of pole-pairs is 1.The electronics commutation circuit is realized the accurate commutation of motor, guarantees that motor moves under breakdown torque.When stator winding a certain switched on mutually, the magnetic field interaction that the magnetic pole of this electric current and rotor permanent-magnet steel produces and produce torque, drive rotor, by hall position sensor the rotor magnetic steel evolution is become the signal of telecommunication again, remove to control electronic switch circuit, thereby make each phase winding of stator by a graded conducting, the stator phase current is according to a certain order commutation with the variation of rotor-position.
Advantage of the present invention: the structure of three-phase the two poles of the earth brshless DC motor of this Patent design has the advantages such as simple in structure, reliable, easy to maintenance, possesses again the characteristics of direct current machine operational efficiency height, good speed adjustment features, simultaneously without excitation loss.
Description of drawings
Fig. 1 is the structure chart of three-phase of the present invention the two poles of the earth brshless DC motor.
Embodiment
Detailed construction of the present invention is illustrated in conjunction with the embodiments.
The structure of this three-phase the two poles of the earth brshless DC motor as shown in Figure 1.
Technical scheme of the present invention is achieved in that the structure of this three-phase the two poles of the earth brshless DC motor comprises transducer, electronics commutation circuit and motor body, and the main shaft of transducer and motor body is connected.Transducer detection rotor magnetic pole is with respect to the position signalling of stator winding, and then each phase winding conducting order and time of control logic switch element.Motor body mainly comprises stator and rotor two parts, surely gives winding and is divided into A, B, C three-phase, and 120 ° of employings of every phase phase phasic difference Y-connection, three phase windings are connected with corresponding device for power switching in the electronic switch circuit respectively; Rotor is comprised of N, S the two poles of the earth, and number of pole-pairs is 1.The electronics commutation circuit is realized the accurate commutation of motor, guarantees that motor moves under breakdown torque.When stator winding a certain switched on mutually, the magnetic field interaction that the magnetic pole of this electric current and rotor permanent-magnet steel produces and produce torque, drive rotor, by hall position sensor the rotor magnetic steel evolution is become the signal of telecommunication again, remove to control electronic switch circuit, thereby make each phase winding of stator by a graded conducting, the stator phase current is according to a certain order commutation with the variation of rotor-position.
Claims (1)
1. three-phase the two poles of the earth brshless DC motor, it is characterized in that: comprise transducer, electronics commutation circuit and motor body, the main shaft of transducer and motor body is connected, transducer detection rotor magnetic pole is with respect to the position signalling of stator winding, motor body mainly comprises stator and rotor two parts, surely give winding and be divided into A, B, C three-phase, 120 ° of employings of every phase phase phasic difference Y-connection, three phase windings are connected with corresponding device for power switching in the electronic switch circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210442932 CN102891580A (en) | 2012-11-08 | 2012-11-08 | Three-phase two-pole brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210442932 CN102891580A (en) | 2012-11-08 | 2012-11-08 | Three-phase two-pole brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102891580A true CN102891580A (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210442932 Pending CN102891580A (en) | 2012-11-08 | 2012-11-08 | Three-phase two-pole brushless direct current motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102891580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595347A (en) * | 2021-08-02 | 2021-11-02 | 江苏聚磁电驱动科技有限公司 | Single-wire three-phase-free splicing and splicing winding process for motor and motor applied by same |
-
2012
- 2012-11-08 CN CN 201210442932 patent/CN102891580A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595347A (en) * | 2021-08-02 | 2021-11-02 | 江苏聚磁电驱动科技有限公司 | Single-wire three-phase-free splicing and splicing winding process for motor and motor applied by same |
| CN113595347B (en) * | 2021-08-02 | 2023-01-17 | 江苏聚磁电驱动科技有限公司 | Single-wire three-phase-free splicing and splicing winding process for motor and motor applied by same |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |