CN205647328U - Three -phase AC asynchronous machine's digital speed control system - Google Patents
Three -phase AC asynchronous machine's digital speed control system Download PDFInfo
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- CN205647328U CN205647328U CN201620478327.4U CN201620478327U CN205647328U CN 205647328 U CN205647328 U CN 205647328U CN 201620478327 U CN201620478327 U CN 201620478327U CN 205647328 U CN205647328 U CN 205647328U
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- chip microcomputer
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- phase asynchronous
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Abstract
The utility model relates to a control system, more specifically say, relate to three -phase AC asynchronous machine's digital speed control system. Control system includes three -phase asynchronous motor, intelligent power module, optoelectronic isolation circuit, the control unit, memory, singlechip, liquid crystal display, key entry, DA output and USB interface circuit, and the input of singlechip is being connected to the output of DA output, the input of singlechip is being connected to USB interface circuit's output, the input of singlechip is being connected to key entry's output, liquid crystal display's input is being connected to the output of singlechip, the input of optoelectronic isolation circuit is being connected to the control unit's output, the input of intelligent power module is being connected to the output of optoelectronic isolation circuit, three -phase asynchronous motor is being connected to the output of intelligence power module. The utility model discloses control is accurate, can pass through the microcontroller type rotational speed, uses DSP control rotational speed, realizes digital speed governing, and speed control system is cheap, stability is high.
Description
Technical field
This utility model relates generally to control system, more particularly, it relates to ac three-phase asynchronous motor is complete
Digital speed-control control system.
Background technology
Direct current power drags and alternating current generator drags and is successively born in 19th century.Year in 20 th Century
Dai Li, in view of DC pulling has superior speed adjusting performance, high-performance adjustable speed drags and all uses direct current generator,
The not speed change dragging system accounting for Electric Traction total capacity more than 80% then uses alternating current generator.The most electronic
Machine speed governing can only determine general velocity interval, and speed regualtion of AC motor is less, it is impossible to accomplishes accurate speed governing, and
And price is high, poor stability.How to allow motor cheap and have height in the case of accurate speed governing
Stability is the research direction extremely with significance.
Summary of the invention
This utility model is mainly solving the technical problems that provide the total Digital Timing control of ac three-phase asynchronous motor
System processed, its precise control, it is possible to by single-chip microcomputer input speed, use DSP to control rotating speed, it is achieved number
Tone of Chinese characters speed, governing system is cheap, stability is high.
For solving above-mentioned technical problem, the total Digital Timing of this utility model ac three-phase asynchronous motor controls system
System include threephase asynchronous, SPM, photoelectric isolating circuit, control unit, memorizer,
Single-chip microcomputer, liquid crystal display, input through keyboard, D/A output and usb circuit, its precise control, it is possible to logical
Cross single-chip microcomputer input speed, use DSP to control rotating speed, it is achieved digital speed-control, governing system is cheap,
Stability is high.
Wherein, the outfan of described D/A output is connected to the input of single-chip microcomputer；Described usb circuit
Outfan be connected to the input of single-chip microcomputer；The outfan of described input through keyboard is connected to the input of single-chip microcomputer
End；The outfan of described single-chip microcomputer is connected to the input of liquid crystal display；Described single-chip microcomputer is connected to memorizer；
Described memorizer is connected to control unit；The outfan of described control unit is connected to the defeated of photoelectric isolating circuit
Enter end；The outfan of described photoelectric isolating circuit is connected to the input of SPM；Described intelligence merit
The outfan of rate module is connected to threephase asynchronous.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
Single-chip microcomputer described in speed control system uses AT89S52 single-chip microcomputer.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
Control unit described in speed control system uses TMS320LF2407A dsp chip.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
Photoelectric isolating circuit described in speed control system is made up of 6 TLP127 and current-limiting circuit.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
Liquid crystal display described in speed control system uses OCMJ4X82B display.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
SPM described in speed control system uses IPM SPM.
As further optimization of the present utility model, the total tone of Chinese characters of this utility model ac three-phase asynchronous motor
Memorizer described in speed control system uses dual port RAM.
Control effect: the total Digital Timing control system of this utility model ac three-phase asynchronous motor, it controls
Accurately, it is possible to by single-chip microcomputer input speed, DSP is used to control rotating speed, it is achieved digital speed-control, speed governing system
Unite cheap, stability is high.
Accompanying drawing explanation
The utility model is described in more detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is the total Digital Timing control system hardware structure diagram of this utility model ac three-phase asynchronous motor.
Fig. 2 is the total Digital Timing control system control unit principle of this utility model ac three-phase asynchronous motor
Figure.
Fig. 3 is the total Digital Timing control system photoelectric isolating circuit of this utility model ac three-phase asynchronous motor
Schematic diagram.
Fig. 4 is the total Digital Timing control system input through keyboard principle of this utility model ac three-phase asynchronous motor
Figure.
Fig. 5 is the total Digital Timing control system liquid crystal display principle of this utility model ac three-phase asynchronous motor
Figure.
Fig. 6 is the total Digital Timing control system usb circuit of this utility model ac three-phase asynchronous motor
Schematic diagram.
Detailed description of the invention
Detailed description of the invention one:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment is described, phase asynchronous described in present embodiment
The total Digital Timing control system of motor includes threephase asynchronous, SPM, Phototube Coupling electricity
Road, control unit, memorizer, single-chip microcomputer, liquid crystal display, input through keyboard, D/A output and USB interface electricity
Road, its precise control, it is possible to by single-chip microcomputer input speed, use DSP to control rotating speed, it is achieved numeral is adjusted
Speed, governing system is cheap, stability is high.
Wherein, the outfan of described D/A output is connected to the input of single-chip microcomputer, and D/A output is for by rotating speed
Simulator is exported etc. data.
The outfan of described usb circuit is connected to the input of single-chip microcomputer, and usb circuit will be for turning
The data such as speed send host computer to.
The outfan of described input through keyboard is connected to the input of single-chip microcomputer, and input through keyboard calls for single-chip microcomputer
The Chinese character preset, it is also possible to input numeral (is used for arranging rotating speed).
The outfan of described single-chip microcomputer is connected to the input of liquid crystal display, and liquid crystal display is used for showing given turning
Speed.
Described single-chip microcomputer is connected to memorizer, and single-chip microcomputer is for being read out the data of storage in memorizer.
Described memorizer is connected to control unit, and memorizer is for storing the variant waveform number that control unit gathers
According to.
The outfan of described control unit is connected to the input of photoelectric isolating circuit, and control unit is used for controlling
Motor speed and armature supply are sampled by system.
The outfan of described photoelectric isolating circuit is connected to the input of SPM, photoelectric isolating circuit
For the electrical isolation of control unit Yu intelligent power unit, and pwm signal is amplified.
The outfan of described SPM is connected to threephase asynchronous, threephase asynchronous conduct
Controlled device, it is achieved motor speed adjusting.
Detailed description of the invention two:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described single-chip microcomputer uses AT89S52 monolithic
Machine, AT89S52 control unit mainly completes following functions: one is to complete to turn given by input through keyboard interface
The setting of speed；Two is to complete the display to given rotating speed by liquid crystal display；Three has been to dual port RAM
The reading of middle storage data, and the data of reading are imported host computer by usb circuit or passes through D/A
Output circuit is input to simulator.Described AT89S52 single-chip microcomputer has cheap, the spy of good stability
Point.
Detailed description of the invention three:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described control unit uses TMS320LF2407A
Dsp chip, TMS320LF2407A mainly includes arithmetic logical unit (CALU), register set, auxiliary
Help ALU (ARAU), multiplier, multiplication shift device, accumulator, addition shift unit, clock
Phase-locked loop circuit, two task manager A, B being equal to completely (include general purpose timer, comparing unit,
Capture/orthogonal encoder impulse circuit), internal A/D converter, double-serial port, house dog, CAN
Circuit unit etc..TMS320LF2407A uses advanced Harvard structure, and assembly line work, in 30MHz
Under portion's clock frequency, the instruction cycle is only 33ns.
Detailed description of the invention four:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described photoelectric isolating circuit is by 6 TLP127
And current-limiting circuit composition, TLP127 is a miniaturized flat bonder, with TOSHIBA for representing brand, suitable
Installing for paster, comprise a GaAs infrarede emitting diode, this diode reaches woods optically coupling to one
Occulting light electric transistor.There is cheap, the feature of good stability.
Detailed description of the invention five:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described liquid crystal display uses OCMJ4X82B
Display, described OCMJ4X82B display is Chinese Graphic dual-purpose liquid crystal display, and display effect is more clear
Clear.Described OCMJ4X82B display have cheap, stablize surname Gao, feature that display effect is good.
Detailed description of the invention six:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described SPM uses IPM intelligence
Energy power model, switching speed is fast, and low-power consumption has quick short-circuit protection function, has overtemperature protection
Function, has raster data model Undervoltage lockout function, and capacity of resisting disturbance is strong, need not take anti-static precautions.
Detailed description of the invention seven:
In conjunction with Fig. 1,2,3,4,5,6, present embodiment being described, described memorizer uses dual port RAM, is
Directly exchange the internal storage of data with CPU, be also main memory.It can be read and write at any time, and speed is very
Hurry up, usually used as operating system or other be currently running in program ephemeral data storage medium.
Operation principle: after single-chip computer control system powers on, first passes through input through keyboard interface input given rotating speed,
Given rotating speed is stored in memory by single-chip microcomputer, and meanwhile, given rotating speed exports liquid by single-chip microcomputer P0 mouth
Showing rotating speed on brilliant display unit, the indication range of rotating speed is 0～9999r/min, then defeated by keyboard
Enter to determine whether to correlated variables to be sampled and stores.Power on secondly to control unit control system, run
Initialization program completes the setting (including correlated variables sampled data storage etc.) of original state, controls single
The control system of unit carries out speed regulating control to motor.Single-chip microcomputer sends rotating speed to host computer by USB interface,
Control unit and SPM are isolated to simulator, photoelectric isolating circuit by D/A output output
Open.This control system has cheap, the feature of good stability.
Although this utility model is open as above with preferred embodiment, but it is not limited to this practicality newly
Type, any person skilled in the art, without departing from spirit and scope of the present utility model, can do each
Planting and change and modify, protection domain the most of the present utility model should be with being as the criterion that claims are defined.
Claims (7)
1. the total Digital Timing control system of ac three-phase asynchronous motor, it is characterised in that described phase asynchronous
The total Digital Timing control system of motor includes threephase asynchronous, SPM, Phototube Coupling electricity
Road, control unit, memorizer, single-chip microcomputer, liquid crystal display, input through keyboard, D/A output and USB interface electricity
Road, the outfan of described D/A output is connected to the input of single-chip microcomputer；The output of described usb circuit
End is connected to the input of single-chip microcomputer；The outfan of described input through keyboard is connected to the input of single-chip microcomputer；Institute
The outfan stating single-chip microcomputer is connected to the input of liquid crystal display；Described single-chip microcomputer is connected to memorizer；Described
Memorizer is connected to control unit；The outfan of described control unit is connected to the input of photoelectric isolating circuit；
The outfan of described photoelectric isolating circuit is connected to the input of SPM；Described SPM
Outfan be connected to threephase asynchronous.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described single-chip microcomputer uses AT89S52 single-chip microcomputer.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described control unit uses TMS320LF2407A dsp chip.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described photoelectric isolating circuit is made up of 6 TLP127 and current-limiting circuit.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described liquid crystal display uses OCMJ4X82B display.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described SPM uses IPM SPM.
The total Digital Timing control system of ac three-phase asynchronous motor the most according to claim 1, its feature exists
In: described memorizer uses dual port RAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478327.4U CN205647328U (en) | 2016-05-24 | 2016-05-24 | Three -phase AC asynchronous machine's digital speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478327.4U CN205647328U (en) | 2016-05-24 | 2016-05-24 | Three -phase AC asynchronous machine's digital speed control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205647328U true CN205647328U (en) | 2016-10-12 |
Family
ID=57054494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620478327.4U Expired - Fee Related CN205647328U (en) | 2016-05-24 | 2016-05-24 | Three -phase AC asynchronous machine's digital speed control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205647328U (en) |
-
2016
- 2016-05-24 CN CN201620478327.4U patent/CN205647328U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |