CN202663335U - Direct current control device for alternating current permanent magnet synchronous motor - Google Patents
Direct current control device for alternating current permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN202663335U CN202663335U CN2012202540161U CN201220254016U CN202663335U CN 202663335 U CN202663335 U CN 202663335U CN 2012202540161 U CN2012202540161 U CN 2012202540161U CN 201220254016 U CN201220254016 U CN 201220254016U CN 202663335 U CN202663335 U CN 202663335U
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- permanent magnet
- magnet synchronous
- synchronous motor
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Abstract
The utility model discloses a direct current control device for an alternating current permanent magnet synchronous motor. The direct current control device comprises a direct current power supply interface (1), a voltage stabilization filtering circuit (2), a motor control unit (3) and a bridge-type driving circuit (4) which are sequentially connected, wherein the direct current power supply interface (1) is connected with a rectifying output end of an external direct current power supply or transformer; and the motor control unit (3) is used for outputting a pulse width modulation signal to the bridge-type driving circuit (4) and outputting an alternating current power supply which is changed according to a sine wave law to the alternating current permanent magnet synchronous motor (5) through the bridge-type driving circuit (4). The direct current control device is suitable for places without alternating current, and single-phase power frequency alternating current motors, and is particularly suitable for controlling the speed-reduction claw-pole type alternating current permanent magnet synchronous motor. The direct current control device has the advantages of low energy consumption, wide application range, simple structure and low cost.
Description
Technical field
The utility model relates to machine field, is specifically related to a kind of direct-flow controlling device for AC permanent magnet synchronous motor.
Background technology
AC permanent magnet synchronous motor is one of driving arrangement that generally uses.But the AC permanent magnet synchronous motor of prior art must depend on AC power, therefore can only be used for having the place of alternating current, and for the place that alternating current can't be provided, then the application of AC permanent magnet synchronous motor is restricted.
The utility model content
The technical problems to be solved in the utility model provides a kind of being applicable to without the alternating current place, be applicable to the single phase industrial frequence alternating current machine, be particularly useful for controlling the speed-reducing type claw poler form AC permanent magnet synchronous motor, the direct-flow controlling device that is used for AC permanent magnet synchronous motor that energy consumption is low, applied widely, simple in structure, with low cost.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of direct-flow controlling device for AC permanent magnet synchronous motor, comprise the DC power supply interface, filter circuit of pressure-stabilizing, motor control unit and the bridge drive circuit that link to each other successively, described DC power supply interface links to each other with the DC power supply of outside or the rectification output end of transformer, and described motor control unit is the AC power of sinusoidal wave rule variation to AC permanent magnet synchronous motor output to bridge drive circuit output pulse width modulation signal, by bridge drive circuit.
As further improvement in the technical proposal:
Described bridge drive circuit comprises the first drive circuit and the second drive circuit, described the first drive circuit drives the high frequency arm by first and the first driving low band arm forms, described the second drive circuit drives the high frequency arm by second and the second driving low band arm forms, and described AC permanent magnet synchronous motor is connected between described the first driving high frequency arm and the first driving low band arm and described the second driving high frequency arm and second drives between the low band arm; Described motor control unit is controlled described second and is driven high and low frequency arm and second and drive the high and low frequency arm the controlled pwm signal of conducting is consistent in turn, the AC power that changes to AC permanent magnet synchronous motor sine wave output rule.
Described first drives high frequency arm and second drives the high frequency arm by two-staged transistor (triode and field effect transistor, the IGBT etc.) formation of mutually cascade, and described first drives the high frequency arm links to each other with motor control unit respectively with the second transistorized base stage of the first order that drives the high frequency arm, and described first drives the high frequency arm links to each other with AC permanent magnet synchronous motor respectively with the second output that drives the high frequency arm.
Described the first driving low band arm and second drives low band arm and consists of by transistor, described AC permanent magnet synchronous motor drives low band arm by described first respectively and the second driving low band arm links to each other with the DC power supply interface, and the described first control end and the second control end that drives low band arm that drives low band arm links to each other with motor control unit respectively.
Described motor control unit comprises electric machine controller and is used for being subjected to the pulse width regulating circuit of the sinusoidal all-wave pulse width modulating signal of complementary reverse 180 degree of motor controller controls output, the power input of described electric machine controller links to each other with the DC power supply interface by filter circuit of pressure-stabilizing, the control output end of described electric machine controller links to each other with bridge drive circuit by pulse width regulating circuit, the pulse width modulating signal that described electric machine controller changes to AC permanent magnet synchronous motor sine wave output rule by the control pulse width regulating circuit.
The utlity model has following advantage:
1, the utility model comprises the DC power supply interface that links to each other successively, filter circuit of pressure-stabilizing, motor control unit and bridge drive circuit, link to each other behind the DC power supply of DC power supply interface and outside or the transformer rectifying and wave-filtering, the pwm signal that motor control unit changes to AC permanent magnet synchronous motor sine wave output rule by bridge drive circuit is controlled the running of AC permanent magnet synchronous motor, be applicable to without the alternating current place, be applicable to the single phase industrial frequence alternating current machine, be particularly useful for controlling the speed-reducing type claw poler form AC permanent magnet synchronous motor, have energy consumption low, applied widely, simple in structure, advantage with low cost.
2, because the utility model adopts DC power supply, thereby form the input current control AC permanent magnet synchronous motor rotation of the sinusoidal rule of alternation in the input simulation of AC permanent magnet synchronous motor to the first drive circuit and the second drive circuit output pwm signal by the motor control unit alternate cycles, relatively directly adopt the energy consumption that exchanges driving lower, can save about 30%～50% electric energy.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the frame structure schematic diagram of the utility model embodiment.
Fig. 2 is the circuit theory schematic diagram of the utility model embodiment.
Marginal data:
1, DC power supply interface; 2, filter circuit of pressure-stabilizing;
3, motor control unit; 31, electric machine controller; 32, pulse width regulating circuit;
4, bridge drive circuit; 41, the first drive circuit; 42, the second drive circuit;
5, AC permanent magnet synchronous motor.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection range of the present utility model is made more explicit defining.
As depicted in figs. 1 and 2, the direct-flow controlling device that the present embodiment is used for AC permanent magnet synchronous motor comprises the DC power supply interface 1 that links to each other successively, filter circuit of pressure-stabilizing 2, motor control unit 3 and bridge drive circuit 4, DC power supply interface 1 links to each other with the DC power supply of outside or the rectification output end of transformer, motor control unit 3 is to bridge drive circuit 4 output pulse width modulation signals (pwm signal), be the AC power that sinusoidal wave rule changes by bridge drive circuit 4 to AC permanent magnet synchronous motor 5 outputs, thus the running of control AC permanent magnet synchronous motor 5.
DC power supply interface 1 links to each other with DC power supply or the transformer of outside, so powers after can adopting powered battery or transformer rectifying and wave-filtering.In the present embodiment, DC power supply interface 1 adopts storage battery to power, and its input voltage is 12～24V.
Filter circuit of pressure-stabilizing 2 is used for making the circuit supply pulsation to reduce, so that motor control unit 3 and whole system work are more reliable and more stable.In the present embodiment, filter circuit of pressure-stabilizing 2 is realized based on power supply chip 78L05.
Motor control unit 3 comprises electric machine controller 31 and is used for being subjected to the pulse width regulating circuit 32 of the sinusoidal all-wave pulse width modulating signal of complementary reverse 180 degree of electric machine controller 31 control outputs, the power input of electric machine controller 31 links to each other with DC power supply interface 1 by filter circuit of pressure-stabilizing 2, the control output end of electric machine controller 31 links to each other with bridge drive circuit 4 by pulse width regulating circuit 32, the pulse width modulating signal that electric machine controller 31 changes to AC permanent magnet synchronous motor 5 sine wave output rules by control pulse width regulating circuit 32.In the present embodiment, it is the chip microcontroller of loose writing brush 2511 that electric machine controller 31 and pulse width regulating circuit 32 adopt the same model, and the pulsewidth of adjusting PWM by this single-chip microcomputer changes control bridge drive circuit 4 according to sinusoidal wave rule.Electric machine controller 31 and pulse width regulating circuit 32 also can be realized by independent analog circuit in addition, perhaps electric machine controller 31 and pulse width regulating circuit 32 also can be adopted independent chip microcontroller, be the ordinary skill in the art owing to realizing circuit or the chip of above-mentioned functions, do not repeat them here.
In the present embodiment, bridge drive circuit 4 is H bridge drive circuit: bridge drive circuit 4 comprises the first drive circuit 41 and the second drive circuit 42, the first drive circuit 41 drives the high frequency arm by first and the first driving low band arm forms, the second drive circuit 42 drives the high frequency arm by second and the second driving low band arm forms, and AC permanent magnet synchronous motor 5 is connected between the first driving high frequency arm and the first driving low band arm and the second driving high frequency arm and second drives between the low band arm; Motor control unit 3 control second drives high frequency arm and second and drives the in turn pwm signal that changes to AC permanent magnet synchronous motor 5 sine wave output rules of conducting of low band arm.First drives high frequency arm and second drives the high frequency arm by the two-staged transistor formation of mutually cascade, and first drives the high frequency arm links to each other with motor control unit 3 respectively with the second transistorized base stage of the first order that drives the high frequency arm, and first drives the high frequency arm links to each other with AC permanent magnet synchronous motor 5 respectively with the second output that drives the high frequency arm.The first driving low band arm and second drives low band arm and consists of by transistor, AC permanent magnet synchronous motor 5 drives low band arm by first respectively and the second driving low band arm links to each other with DC power supply interface 1, and the first control end and the second control end that drives low band arm that drives low band arm links to each other with motor control unit 3 respectively.First of bridge drive circuit 4 drives low band arm and the second driving low band arm changes according to fundamental frequency 50HZ, first drive high frequency arm and second drive the high frequency arm according to sinusoidal rule in turn conducting form the sinusoidal rule electric current of input AC permagnetic synchronous motor 5, first in the present embodiment drives complementary reverse 180 degree of signal that low band arm and second drives low band arm output and forms sinusoidal all-wave.In the present embodiment, the first drive circuit 41 is made of transistor Q3, Q2, Q6, and wherein transistor Q3, Q2 consist of the first driving high frequency arm of the first drive circuit 41, and first of the first drive circuit 41 drives low band arm and then is made of transistor Q6; The second drive circuit 42 is made of transistor Q1, Q4, Q5, and wherein transistor Q1, Q4 consist of the second driving high frequency arm of the second drive circuit 42, and second of the second drive circuit 42 drives low band arm and then is made of transistor Q5.The base stage of transistor Q6 links to each other with No. 10 pins of loose writing brush 2511 single-chip microcomputers (motor control unit 3), and the base stage of Q3 links to each other with No. 1 pin of loose writing brush 2511 single-chip microcomputers (motor control unit 3); The base stage of Q5 links to each other with No. 8 pins of loose writing brush 2511 single-chip microcomputers (motor control unit 3), and the base stage of Q4 links to each other with No. 2 pins of loose writing brush 2511 single-chip microcomputers (motor control unit 3).
In addition, bridge drive circuit 4 can adopt full bridge driving circuit or half-bridge drive circuit as required, because full bridge driving circuit or half-bridge drive circuit are the ripe circuit of prior art, so repeats no more in the present embodiment.
The course of work of the present embodiment is as follows: the first drive circuit 41 and 42 two branch roads of the second drive circuit are controlled by 4 output pins (No. 1 pin, No. 2 pins, No. 8 pins, No. 10 pins) of motor control unit 3 respectively.When 1 pin of motor control unit 3 and 10 pin were exported the pwm signal of high potential simultaneously, Q2 and Q6 opened simultaneously, and electric current flows to the right from the left side of AC permanent magnet synchronous motor 5; When 2 pin of motor control unit 3 and 8 pin are exported the pwm signal of high potential simultaneously, Q1 and Q5 open simultaneously, electric current flows to the left side from the right of AC permanent magnet synchronous motor 5, such iterative cycles, the alternating current that sinusoidal wave rule changes, i.e. an alternating current have just been produced at the two ends of AC permanent magnet synchronous motor 5.The frequency of oscillation of motor control unit 3 is set at 50Hz, and each pin output is regulating impulse bandwidth modulation signals (pwm signal), so just added the pulse width modulating signal (pwm signal) of sine wave alternating current form of the 50Hz of a standard at the two ends of AC permanent magnet synchronous motor 5, thereby driven AC permanent magnet synchronous motor 5 rotations.
The above only is preferred implementation of the present utility model, and protection range of the present utility model is not limited in above-mentioned execution mode, and every technical scheme that belongs to the utility model principle all belongs to protection range of the present utility model.For a person skilled in the art, some improvements and modifications of under the prerequisite that does not break away from principle of the present utility model, carrying out, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. direct-flow controlling device that is used for AC permanent magnet synchronous motor, it is characterized in that: comprise the DC power supply interface (1) that links to each other successively, filter circuit of pressure-stabilizing (2), motor control unit (3) and bridge drive circuit (4), described DC power supply interface (1) links to each other with the DC power supply of outside or the rectification output end of transformer, and described motor control unit (3) is to bridge drive circuit (4) output pulse width modulation signal, be the AC power that sinusoidal wave rule changes by bridge drive circuit (4) to AC permanent magnet synchronous motor (5) output.
2. the direct-flow controlling device for AC permanent magnet synchronous motor according to claim 1, it is characterized in that: described bridge drive circuit (4) comprises the first drive circuit (41) and the second drive circuit (42), described the first drive circuit (41) drives the high frequency arm by first and the first driving low band arm forms, described the second drive circuit (42) drives the high frequency arm by second and the second driving low band arm forms, and described AC permanent magnet synchronous motor (5) is connected between described the first driving high frequency arm and the first driving low band arm and described the second driving high frequency arm and second drives between the low band arm.
3. the direct-flow controlling device for AC permanent magnet synchronous motor according to claim 2, it is characterized in that: described first drives high frequency arm and second drives the high frequency arm by the two-staged transistor formation of mutually cascade, and described first drives the high frequency arm links to each other with motor control unit (3) respectively with the second transistorized base stage of the first order that drives the high frequency arm, and described first drives the high frequency arm links to each other with AC permanent magnet synchronous motor (5) respectively with the second output that drives the high frequency arm.
4. the direct-flow controlling device for AC permanent magnet synchronous motor according to claim 3, it is characterized in that: described the first driving low band arm and second drives low band arm and consists of by transistor, described AC permanent magnet synchronous motor (5) drives low band arm by described first respectively and the second driving low band arm links to each other with DC power supply interface (1), and the described first control end and the second control end that drives low band arm that drives low band arm links to each other with motor control unit (3) respectively.
5. according to claim 2 or 3 or 4 described direct-flow controlling devices for AC permanent magnet synchronous motor, it is characterized in that: described motor control unit (3) comprises electric machine controller (31) and is used for being subjected to the pulse width regulating circuit (32) of the sinusoidal all-wave pulse width modulating signal of complementary reverse 180 degree of electric machine controller (31) control output, the power input of described electric machine controller (31) links to each other with DC power supply interface (1) by filter circuit of pressure-stabilizing (2), the control output end of described electric machine controller (31) links to each other with bridge drive circuit (4) by pulse width regulating circuit (32), the pulse width modulating signal that described electric machine controller (31) changes to AC permanent magnet synchronous motor (5) sine wave output rule by control pulse width regulating circuit (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202540161U CN202663335U (en) | 2012-05-29 | 2012-05-29 | Direct current control device for alternating current permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202540161U CN202663335U (en) | 2012-05-29 | 2012-05-29 | Direct current control device for alternating current permanent magnet synchronous motor |
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| Publication Number | Publication Date |
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| CN202663335U true CN202663335U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202540161U Expired - Fee Related CN202663335U (en) | 2012-05-29 | 2012-05-29 | Direct current control device for alternating current permanent magnet synchronous motor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664573A (en) * | 2012-05-29 | 2012-09-12 | 葛周通 | Direct-current control device for alternating-current permanent-magnet synchronous motor |
| CN104579039A (en) * | 2015-01-20 | 2015-04-29 | 青岛大学 | Method for controlling speed of permanent magnet synchronous induction motor |
| CN104956586A (en) * | 2013-01-30 | 2015-09-30 | 株式会社日立产机系统 | Step-out detection method and power conversion device |
| CN105099287A (en) * | 2015-07-06 | 2015-11-25 | 湖南工业大学 | Remote speed regulation device of direct current brushless motor |
| CN106063119A (en) * | 2014-04-16 | 2016-10-26 | 株式会社日立产机系统 | Power conversion device and power conversion method |
| CN106487316A (en) * | 2015-08-31 | 2017-03-08 | Lg电子株式会社 | A kind of electrical motor driven device and the household electrical appliance with the device |
-
2012
- 2012-05-29 CN CN2012202540161U patent/CN202663335U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664573A (en) * | 2012-05-29 | 2012-09-12 | 葛周通 | Direct-current control device for alternating-current permanent-magnet synchronous motor |
| CN104956586A (en) * | 2013-01-30 | 2015-09-30 | 株式会社日立产机系统 | Step-out detection method and power conversion device |
| CN104956586B (en) * | 2013-01-30 | 2017-09-26 | 株式会社日立产机系统 | Step failing out detecting method and power inverter |
| CN106063119A (en) * | 2014-04-16 | 2016-10-26 | 株式会社日立产机系统 | Power conversion device and power conversion method |
| CN106063119B (en) * | 2014-04-16 | 2018-12-04 | 株式会社日立产机系统 | Power inverter and power transferring method |
| CN104579039A (en) * | 2015-01-20 | 2015-04-29 | 青岛大学 | Method for controlling speed of permanent magnet synchronous induction motor |
| CN104579039B (en) * | 2015-01-20 | 2019-04-02 | 青岛大学 | A kind of control method of permanent-magnet synchronous induction conductivity speed |
| CN105099287A (en) * | 2015-07-06 | 2015-11-25 | 湖南工业大学 | Remote speed regulation device of direct current brushless motor |
| CN105099287B (en) * | 2015-07-06 | 2017-06-13 | 湖南工业大学 | The remote arrangements for speed regulation of DC brushless motor |
| CN106487316A (en) * | 2015-08-31 | 2017-03-08 | Lg电子株式会社 | A kind of electrical motor driven device and the household electrical appliance with the device |
| US10243499B2 (en) | 2015-08-31 | 2019-03-26 | Lg Electronics Inc. | Motor driving apparatus and home appliance including the same |
| CN106487316B (en) * | 2015-08-31 | 2019-11-15 | Lg电子株式会社 | A kind of electrical motor driven device and the household electrical appliance with the device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20170529 |