CN205453575U - Exchange asynchronous servo driver - Google Patents
Exchange asynchronous servo driver Download PDFInfo
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- CN205453575U CN205453575U CN201521100925.XU CN201521100925U CN205453575U CN 205453575 U CN205453575 U CN 205453575U CN 201521100925 U CN201521100925 U CN 201521100925U CN 205453575 U CN205453575 U CN 205453575U
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Abstract
The phase electric current value that exchange asynchronous servo driver, motor looks current sample device treated driving motor is gathered and is acquireed current phase electric current value, and the output is connected with the input of controller, and the output and the electric current loop duty cycle regulator of controller are connected, and electric current loop duty cycle regulator is connected with the electric current loop of treating driving motor, in the controller judges whether current phase electric current value falls into the interval value of phase electric current of settlement, if in not falling into the interval value of phase electric current, then drive current encircles duty cycle adjusting device improvement duty cycle value or reduces the duty cycle value, treats driving motor's electric current loop and adjusts. Thereby it is low to have solved the asynchronous electronic and rotational speed control accuracy of current interchange, does not have the problem of position control ability. Thereby the speed of realization closed -loop control, rotary speed control control accuracy reach the same precision of the synchronous servo motor of alternating -current permanent -magnet, also can set up to position control the mode for control lathe feed shaft.
Description
Technical field
This utility model relates to motor and Motor Control Field technical field, particularly relates to alternating current asynchronous servo-driver.
Background technology
AC asynchronous motor is a kind of electric drive converting electrical energy into mechanical energy.It is mainly made up of stator, rotor and the air gap between them.After stator winding is led to three-phase alternating-current supply, produce rotating excitation field cutting rotor, it is thus achieved that torque.Three-phase AC asynchronous motor has simple in construction, reliable, low price, overload capacity are strong and use, install, the advantage such as easy to maintenance, be widely used in every field.But in use, AC induction motor is generally by transducer drive, the three-phase alternating current electric control motor speed of converter output frequency modulation and voltage modulation, there is no velocity feedback, it is opened loop control to speed controlling, during motor low cruise, exports torque degradation, even stall.Thus had a strong impact on the precision of motor and effectively used.
Utility model content
For above-mentioned defect of the prior art, the purpose of this utility model is to provide a kind of alternating current asynchronous servo-driver.Thus solve that existing alternating current asynchronous is electronic and rotating speed control accuracy is low, the problem without position control ability.
In order to achieve the above object, the following technical scheme of this utility model offer:
Alternating current asynchronous servo-driver, wherein, including: controller, electric machine phase current sampling apparatus and electric current loop duty cycle adjustment device；The phase current values of motor to be driven is acquired obtaining current phase current values by described electric machine phase current sampling apparatus, outfan is connected with the input of described controller, the outfan of described controller is connected with described electric current loop duty cycle adjustment device, and described electric current loop duty cycle adjustment device is connected with the electric current loop of motor to be driven；In described controller judges the phase current interval value whether described current phase current values falls into setting, if not falling within described phase current interval value, then drive described electric current loop duty cycle adjustment device improve dutyfactor value or reduce dutyfactor value, the electric current loop of described motor to be driven is adjusted.
In a preferred embodiment, described controller arranges position ring count generator；The outfan of described position ring count generator is connected with the input of the position ring controller of motor to be driven.
In a preferred embodiment, one end of described motor to be driven arranges motor encoder, is acquired position of magnetic pole, motor corner and the rotary speed information of current motor to be driven.
In a preferred embodiment, the outfan of described motor encoder is connected with the input of described controller, and the outfan of described controller is connected with the input of the speed ring controller of motor to be driven.
In a preferred embodiment, described controller is digital signal processor.
In a preferred embodiment, also include: motor driver；The power supply of described motor driver is Switching Power Supply.
In a preferred embodiment, the power driver module in described motor driver is SPM.
In a preferred embodiment, also include: man-machine interaction input and display device；Described man-machine interaction input and display device are connected with the input of described controller, show described current phase current values, and the phase current interval value of described setting is carried out input setting.
In a preferred embodiment, described controller also includes: radio communication device；Described man-machine interaction input and display device are connected with described controller by described radio communication device.
In a preferred embodiment, described human-machine interaction input device is touch screen or keyboard；Described man-machine interaction display device is display.
Of the present utility model having the beneficial effect that realizes velocity close-loop control to AC induction motor, and rotating speed controls control accuracy and reaches AC permanent-magnet synchronous servo motor same precision, it is also possible to is set to position control mode, is used for controlling machine tool feed axle.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is in this utility model one embodiment, the control composition schematic diagram of alternating current asynchronous servo-driver；
Fig. 2 is in this utility model another embodiment, the control composition schematic diagram of alternating current asynchronous servo-driver；
Fig. 3 is in another embodiment of this utility model, the control composition schematic diagram of alternating current asynchronous servo-driver.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
In a kind of embodiment of the present utility model, it is provided that alternating current asynchronous servo-driver, including: controller 10, electric machine phase current sampling apparatus 20 and electric current loop dutycycle IP adjusting means 30.The phase current values of motor to be driven is acquired obtaining current phase current values by electric machine phase current sampling apparatus 20, outfan is connected with the input of controller 10, the outfan of controller 10 is connected with electric current loop dutycycle IP actuator, and electric current loop dutycycle IP actuator is connected with the electric current loop of motor to be driven；In controller 10 judges the phase current interval value whether current phase current values falls into setting, if not falling within phase current interval value, then drive electric current loop dutycycle IP adjusting means 30 improve dutyfactor value or reduce dutyfactor value, the electric current loop of motor to be driven is adjusted.This is adjusted to: if current phase current values is more than phase current interval value, then dutycycle is tuned up, makes current value reduce.If current phase current values is less than phase current interval value, then dutycycle is turned down, make current value increase.Thus realize the closed loop feedback to phase current and regulate.Rising controller 10 is DSP.
In a kind of embodiment of the present utility model, controller 10 arranges position ring count generator；The outfan of position ring count generator is connected with the input of the position ring controller of motor to be driven.Thus realize the driving to position ring and control.
In a kind of embodiment of the present utility model, one end of motor to be driven arranges motor encoder 40, is acquired position of magnetic pole, motor corner and the rotary speed information of current motor to be driven.As in figure 2 it is shown, the outfan of motor encoder 40 is connected with the input of controller 10, the outfan of controller 10 is connected with the input of the speed ring controller 10 of motor to be driven.
In a kind of embodiment of the present utility model, also include: motor driver；The power supply of motor driver is Switching Power Supply.Power driver module in motor driver is SPM.
In a kind of embodiment of the present utility model, as it is shown on figure 3, also include: human-machine interaction input device 50 and display device 60.Human-machine interaction input device 50 and display device 60 are connected with the input of controller 10, show current phase current values, the phase current interval value set is carried out input and sets.Controller 10 also includes: radio communication device；Human-machine interaction input device 50 and display device 60 are connected with controller 10 by radio communication device.
Above-mentioned human-machine interaction input device 50 device is touch screen or keyboard；Man-machine interaction display device 60 is display.
Alternating current asynchronous servo-driver in a kind of embodiment of the present utility model: driver is made up of power amplifier board, panel, operation panel.
Driving plate critical piece: Switching Power Supply, rectifier bridge, filter capacitor source, IPM power model, optical coupling isolator, optical isolation amplifier.Each component function: Switching Power Supply part offer+5V, + 15V power supply, rectifier bridge, filter capacitor provide 530V DC bus-bar voltage for IPM power model, IPM power model produces three-phase alternating-current supply and drives motor winding, optical coupling isolator is to transmitting signal electrical isolation between panel and power amplifier board, and optical isolation amplifier is to electric machine phase current isolation sampling.
Panel critical piece: driver master control dsp chip (TMS320F28335), encoder interfaces chip, voltage stabilizing chip.Functions: voltage stabilizing chip provides 3.3V power supply, driver master control dsp chip is responsible for driver current ring, speed ring, position ring control.The internal TIM1 of DSP is configured to PWM and generates intervalometer, produces 6 road SVPWM signals and drives IPM power model.Isolated amplifier is converted to digital quantity to the electric machine phase current sampled signal internal ADC analog-digital converter of input DSP and calculates for electric current loop pi regulator feedback.The internal TIM3 of DSP is set to the step-by-step counting that step actuator host computer is sent by add drop enumerator, count value is as position ring instruction input, the internal TIM2 of DSP is set to orthogonal count mode and counts motor encoder signal quadruple, and count value is fed back as position ring and calculates motor speed as loop feedback.Encoder interfaces chip is used for connecting motor encoder.
Operation panel critical piece: LED charactron, button.Operation panel function: man-machine interaction, drive parameter checks, revises, and Drive Status monitors.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with scope of the claims.
Claims (6)
1. alternating current asynchronous servo-driver, it is characterised in that including: controller, electric machine phase current sampling apparatus and electric current loop duty cycle adjustment device；The phase current values of motor to be driven is acquired obtaining current phase current values by described electric machine phase current sampling apparatus, outfan is connected with the input of described controller, the outfan of described controller is connected with described electric current loop duty cycle adjustment device, and described electric current loop duty cycle adjustment device is connected with the electric current loop of motor to be driven；In described controller judges the phase current interval value whether described current phase current values falls into setting, if not falling within described phase current interval value, then drive described electric current loop duty cycle adjustment device improve dutyfactor value or reduce dutyfactor value, the electric current loop of described motor to be driven is adjusted；Also include: man-machine interaction input and display device；Described man-machine interaction input and display device are connected with the input of described controller, show described current phase current values, and the phase current interval value of described setting is carried out input setting；Described controller also includes: radio communication device；Described man-machine interaction input and display device are connected with described controller by described radio communication device；Described human-machine interaction input device is touch screen or keyboard；Described man-machine interaction display device is display.
Alternating current asynchronous servo-driver the most according to claim 1, it is characterised in that position ring count generator is set in described controller；The outfan of described position ring count generator is connected with the input of the position ring controller of motor to be driven.
Alternating current asynchronous servo-driver the most according to claim 1 and 2, it is characterised in that one end of described motor to be driven arranges motor encoder, is acquired position of magnetic pole, motor corner and the rotary speed information of current motor to be driven.
Alternating current asynchronous servo-driver the most according to claim 3, it is characterised in that the outfan of described motor encoder is connected with the input of described controller, the outfan of described controller is connected with the input of the speed ring controller of motor to be driven.
Alternating current asynchronous servo-driver the most according to claim 4, it is characterised in that described controller is digital signal processor.
6. according to the alternating current asynchronous servo-driver described in claim 1 or 4, it is characterised in that also include: motor driver；The power supply of described motor driver is Switching Power Supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100925.XU CN205453575U (en) | 2015-12-25 | 2015-12-25 | Exchange asynchronous servo driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100925.XU CN205453575U (en) | 2015-12-25 | 2015-12-25 | Exchange asynchronous servo driver |
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| Publication Number | Publication Date |
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| CN205453575U true CN205453575U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521100925.XU Active CN205453575U (en) | 2015-12-25 | 2015-12-25 | Exchange asynchronous servo driver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443490A (en) * | 2018-01-17 | 2018-08-24 | 宁波高发汽车控制***股份有限公司 | A kind of control method of automobile rotary knob shift lifting shaft, apparatus and system |
| CN113581754A (en) * | 2021-06-25 | 2021-11-02 | 焦作华欣电气科技有限公司 | Intelligent control system for electric roller |
-
2015
- 2015-12-25 CN CN201521100925.XU patent/CN205453575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443490A (en) * | 2018-01-17 | 2018-08-24 | 宁波高发汽车控制***股份有限公司 | A kind of control method of automobile rotary knob shift lifting shaft, apparatus and system |
| CN113581754A (en) * | 2021-06-25 | 2021-11-02 | 焦作华欣电气科技有限公司 | Intelligent control system for electric roller |
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