CN202772825U - DSP based permanent magnetism AC motor servo control apparatus - Google Patents
DSP based permanent magnetism AC motor servo control apparatus Download PDFInfo
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- CN202772825U CN202772825U CN2012204032366U CN201220403236U CN202772825U CN 202772825 U CN202772825 U CN 202772825U CN 2012204032366 U CN2012204032366 U CN 2012204032366U CN 201220403236 U CN201220403236 U CN 201220403236U CN 202772825 U CN202772825 U CN 202772825U
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Abstract
The utility model relates to a DSP based permanent magnetism AC motor servo control apparatus, wherein a hardware circuit comprises a control circuit and a power main circuit, the control circuit mainly comprises a main control chip DSP processor, a communication interface circuit, a man-machine interface circuit, a state feedback circuit, a speed measuring circuit, and a PWM drive circuit, etc., the power main circuit mainly comprises a three-phase filtering circuit, a rectification circuit, a motor braking circuit and a three-phase inversion circuit. The DSP based permanent magnetism AC motor servo control apparatus employs a reverse digital control system and can communicate with other controllers through a CAN bus or an RS485 serial port, thereby reducing hardware complexity; and employs a DSP chip as a main controller and a pure digital control mode, thereby increasing the servo motor control precision and system reliability, and realizing an intelligent and networked servo system.
Description
Technical field:
The utility model belongs to circuit for controlling motor, particularly a kind of permanent magnet AC motor Servocontrol device based on DSP.
Background technology:
Servo-control system plays irreplaceable effect in now industry.Traditional servo system adopts DC servo motor mostly.Owing to the inherent structure feature of direct current machine, need the mechanical commutation device such as brush of electric commutator, work has inherent instability, operating rate also can not be too high, for satisfying its condition of work, volume and power consumption are generally all larger, can't satisfy the needs that fast responding closes.These defectives have been brought significant limitation for its application.
The permanent magnet AC synchronous machine is a kind of New-type electric machine that occurs along with the development of material technology, semiconductor technology and control technology.Permagnetic synchronous motor adopts electronics commutation technology, overcome the various defectives that the DC servo motor commutator brings, volume is little, lightweight, and efficient and reliability are higher, just progressively replacing original direct current machine servo system with its significant advantage, is the ideal chose of servo system.
The intellectuality and the networking that are digitized as permanent magnet AC synchronous machine servo-control system provide platform.Along with the development of semiconductor technology, the processor integrated level is more and more higher, and processing speed is also more and more faster.The present digital signal processor instructions execution cycle is very short, and operating frequency reaches megahertzes up to a hundred, for making the controller of servo system, can increase substantially the control precision of servo system.By communication system, system health information can be immediately passed to other controller, the work of servo system is judged, finish senior failure diagnosis etc., improve the fault freedom of system, guarantee the reliability service of servo system.
The utility model content:
The utility model purpose provides the permanent magnet AC motor Servocontrol device based on DSP, to adopt Freescale DSP control chip to realize the employing Digitizing And Control Unit, communicate by letter with other controller by CAN bus or RS485, realized intellectuality, the networking of servo system, a kind of scheme of permanent magnet AC synchronous machine servo-control system is provided.
The technical scheme that the described problem that solves the utility model adopts is:
A kind of permanent magnet AC motor Servocontrol device based on DSP is characterized in that: comprise power main circuit and control circuit; Described power main circuit: connect rectification circuit by filter circuit, rectification circuit connects braking circuit, and braking, three-phase inverter bridge circuit connect the permanent magnet AC synchronous machine; Described control circuit: by the master controller of chip dsp processor conduct, master controller is connected three-phase bridge type inverse, braking circuit by the PWM drive circuit with photoelectric isolating circuit, master controller connecting communication interface circuit, man-machine interface circuit and motor status feedback and tachometer circuit.
Described communication interface circuit: be by the PCA82C250 chip as the CAN transceiver, by the Max1487 chip as the RS485 serial interface switching circuit.
Described man-machine interface circuit: by LCD12864 as display, the input unit of the matrix-scanning keyboard that is consisted of by button and keyboard.
Described motor status feedback and tachometer circuit: by rotating speed and the magnetic field position signal conditioning circuit of voltage, electric current, temperature analog signal modulate circuit and motor, it is position and speed measuring equipment that its speed and position transducer adopt incremental optical-electricity encoder, detects permanent magnet machine rotor position and magneto rotating speed.
Master controller connects voltage, electric current, temperature protection circuit, and voltage, electric current, temperature protection circuit connect three-phase bridge type inverse, braking circuit.
Three-phase inverting circuit adopts the IPM module.
The beneficial effects of the utility model are: compared with prior art, realized a kind of servo system of permanent magnet AC synchronous machine, reduced the complexity of hardware, promoted the reliability of servo system.Adopt dsp chip as master controller, the pure digi-tal control mode has improved the servomotor control precision, has realized the intelligentized networking of servo system.
Description of drawings:
Fig. 1 is block diagram of the present utility model.
A kind of permanent magnet AC synchronous machine Servocontrol device block diagram based on DSP of Fig. 2.
Embodiment:
Below in conjunction with preferred embodiment, the utility model is described in further detail.
Referring to Fig. 1,2:
A kind of permanent magnet AC motor Servocontrol device based on DSP comprises power main circuit and control circuit; Described power main circuit: connect rectification circuit by three-phase filter circuit, rectification circuit connects braking circuit, and three-phase bridge type inverse, braking circuit connect motor; Described control circuit: by the master controller of dsp processor chip conduct, master controller is connected three-phase bridge type inverse, braking circuit by the PWM drive circuit with photoelectric isolating circuit, master controller connecting communication interface circuit, man-machine interface circuit and motor status feedback and tachometer circuit.
Described communication interface circuit: be by the PCA82C250 chip as the CAN transceiver, by the Max1487 chip as the RS485 serial interface switching circuit.
Described man-machine interface circuit: by LCD12864 as display, the input unit of the matrix-scanning keyboard that is consisted of by button and keyboard.
Described motor status feedback and tachometer circuit: rotating speed and magnetic field position signal conditioning circuit that voltage, electric current, temperature analog signal modulate circuit and motor are arranged, it is position and speed measuring equipment that its speed and position transducer adopt incremental optical-electricity encoder, detects permanent magnet machine rotor position and magneto rotating speed.
Master controller connects voltage, electric current, temperature protection circuit, and voltage, electric current, temperature protection circuit connect three-phase bridge type inverse, braking circuit.
Three-phase inverting circuit adopts the IPM module, and low in energy consumption, integrated level is high, has simplified the design of drive circuit and protective circuit.
Dsp processor chip MC56F8346 is the core (being master controller) of whole numerical control system, and the DSP control system is responsible for realization of the collection of all feedback signals and computing, servo control algorithm etc.
Be implemented as follows and be:
The electrical network electric energy by rectification, filter circuit after, enter inverter bridge, dsp chip is by the output of control pwm signal power ratio control, thereby finishes the control to AC magnetoelectric machine.
By incremental optical-electricity encoder as speed and position transducer, control system is by processing and computing to feedback signal, obtain motor rotor position and current rotating speed, servo numerical control system is by feedback signal and customer requirements data, adjust PWM output, change the state of permanent magnet AC synchronous machine.
The user by the man-machine interface circuit by other controller by CAN bus or RS485 serial ports to the servomechanism installation sending controling instruction.After servomechanism installation is received user instruction, user command is made respective response.Simultaneously, man-machine interface and communication interface also are responsible for transmission and demonstration servo system operating state, are sent alarm signal.
In this example, the IPM module that power circuit adopts company of German Infineon to produce, integrated level is high, and inside is accompanied with drive circuit, current protecting circuit, temperature protection circuit, effectively reduces the complexity of hardware.Internal protection circuitry has reduced time-delay, has improved the responsiveness of protective circuit.
The above only is preferred embodiments of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (5)
1. the permanent magnet AC motor Servocontrol device based on DSP is characterized in that: comprise power main circuit and control circuit; Described power main circuit: connect rectification circuit by three-phase filter circuit, rectification circuit connects braking circuit and connects three-phase inverter bridge circuit, and three-phase inverter bridge circuit connects the permanent magnet AC synchronous machine; Described control circuit: by the master controller of chip dsp processor conduct, master controller is connected three-phase bridge type inverse, braking circuit by the PWM drive circuit with photoelectric isolating circuit, master controller connecting communication interface circuit, man-machine interface circuit and motor status feedback and tachometer circuit.
2. the permanent magnet AC motor Servocontrol device based on DSP according to claim 1 is characterized in that: described communication interface circuit: be by the PCA82C250 chip as the CAN transceiver, by the Max1487 chip as the RS485 serial interface switching circuit.
3. the permanent magnet AC motor Servocontrol device based on DSP according to claim 1 is characterized in that: described man-machine interface circuit: by LCD12864 as display, the input unit of the matrix-scanning keyboard that is consisted of by button and keyboard.
4. the permanent magnet AC motor Servocontrol device based on DSP according to claim 1, it is characterized in that: described motor status feedback and tachometer circuit: by rotating speed and the magnetic field position signal conditioning circuit of voltage, electric current, temperature analog signal modulate circuit and motor, it is position and speed measuring equipment that its speed and position transducer adopt incremental optical-electricity encoder, detects permanent magnet machine rotor position and magneto rotating speed.
5. the permanent magnet AC motor Servocontrol device based on DSP according to claim 1 is characterized in that: master controller connection voltage, electric current, temperature protection circuit, voltage, electric current, temperature protection circuit connection three-phase bridge type inverse, braking circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2012204032366U CN202772825U (en) | 2012-08-14 | 2012-08-14 | DSP based permanent magnetism AC motor servo control apparatus |
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CN2012204032366U CN202772825U (en) | 2012-08-14 | 2012-08-14 | DSP based permanent magnetism AC motor servo control apparatus |
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CN2012204032366U Expired - Fee Related CN202772825U (en) | 2012-08-14 | 2012-08-14 | DSP based permanent magnetism AC motor servo control apparatus |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104135196A (en) * | 2014-08-07 | 2014-11-05 | 成都信鑫信息技术有限公司 | Permanent magnet motor AC servo control system |
CN104181841A (en) * | 2014-08-11 | 2014-12-03 | 王强 | Oil pumping machine servo control cabinet |
CN110597121A (en) * | 2019-09-17 | 2019-12-20 | 苏州安驰控制系统有限公司 | Stranding machine control device |
CN111555667A (en) * | 2020-05-29 | 2020-08-18 | 上海海事大学 | Synchronous motor control system based on IPM module |
CN111654227A (en) * | 2020-07-06 | 2020-09-11 | 江苏深蓝航天有限公司 | Electric drive control propellant supply system of variable-thrust liquid engine |
-
2012
- 2012-08-14 CN CN2012204032366U patent/CN202772825U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104135196A (en) * | 2014-08-07 | 2014-11-05 | 成都信鑫信息技术有限公司 | Permanent magnet motor AC servo control system |
CN104181841A (en) * | 2014-08-11 | 2014-12-03 | 王强 | Oil pumping machine servo control cabinet |
CN110597121A (en) * | 2019-09-17 | 2019-12-20 | 苏州安驰控制系统有限公司 | Stranding machine control device |
CN111555667A (en) * | 2020-05-29 | 2020-08-18 | 上海海事大学 | Synchronous motor control system based on IPM module |
CN111654227A (en) * | 2020-07-06 | 2020-09-11 | 江苏深蓝航天有限公司 | Electric drive control propellant supply system of variable-thrust liquid engine |
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Granted publication date: 20130306 Termination date: 20150814 |
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