CN202906811U - AC servo control system based on linear Hall sensor - Google Patents
AC servo control system based on linear Hall sensor Download PDFInfo
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- CN202906811U CN202906811U CN2012205542328U CN201220554232U CN202906811U CN 202906811 U CN202906811 U CN 202906811U CN 2012205542328 U CN2012205542328 U CN 2012205542328U CN 201220554232 U CN201220554232 U CN 201220554232U CN 202906811 U CN202906811 U CN 202906811U
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Abstract
The utility model relates to an electromechanical integrated equipment control system, and discloses an AC servo control system based on a linear Hall sensor, comprising a control system and a sensor mounted on a motor stator, wherein the sensor is a linear Hall sensor, the linear Hall sensor is connected with the control system through a passive bandpass filtering circuit, and the control circuit comprises a power supply circuit, a control circuit and a driving circuit. The AC servo control system based on a linear Hall sensor replaces the switch Hall sensor and the incremental photoelectric encoder with the linear Hall sensor, and employs an improved signal processing software, thereby greatly reducing computational complexity, saving material cost, reducing manufacture step and increasing system reliability.
Description
Technical field
The utility model relates to the electromechanical integration equipment control system, has related in particular to a kind of AC servo control system based on linear hall sensor.
Background technology
At present, industrial sewing machine is a kind of height electromechanical integration equipment, and the design of the AC servo control system that consists of based on permagnetic synchronous motor is one of its core technology.In existing AC servo control system, in order to realize the accurate control of motor speed and position, generally realize the real-time detection of rotor-position by the photoelectric encoder that 3 switch Hall transducers and certain precision are installed at motor body.Because photoelectric encoder expensive (even also higher than hundreds of watts of permagnetic synchronous motor body prices), above-mentioned control system cost is higher; In addition, the switch Hall sensor output signal only uses when electric motor starting, after motor moves, its output signal does not generally re-use, although its operating time is limited,, because photoelectric encoder can not provide the initial position signal of rotor, the switch Hall transducer has to be retained in the motor, and this has increased manufacturing process, physics cost and the pin count of motor, and so that the reliability reduction of control system.Simultaneously, need to finish the rest frame that relates to matrixing and the mutual conversion between the rotating coordinate system in this system, this Coordinate Conversion need to expend more storage and computational resource, is difficult to use in the industrial sewing machine that cost sensitivity, positioning accuracy are high, response will be sought quickness, reliability is high.
Summary of the invention
The shortcoming that the utility model is loaded down with trivial details for the manufacturing process of motor in the prior art, Material Cost is high, reliability is low provides a kind of AC servo control system based on linear hall sensor.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Based on the AC servo control system of linear hall sensor, comprise control system and the transducer that is installed on the motor stator, described transducer is linear hall sensor, linear hall sensor is connected with control system by passive bandwidth-limited circuit.
As preferably, described control system comprises power circuit, control circuit and drive circuit;
Control circuit mainly is made of digital signal controller and peripheral circuit:
Peripheral circuit comprises RS232 serial port circuit, 6N137 digital light electric coupling circuit and first group of HCPL7840 analog photoelectricity coupling circuit, second group of HCPL7840 analog photoelectricity coupling circuit;
Power circuit comprises that power-supply filter, rectification/mild filter circuit, Active PFC/soft starting circuit and DC/DC frequency changer circuit consist of;
Drive circuit comprises IRAMS10UP60A Intelligent power module circuit, IR2175 phase current testing circuit and protective circuit.
As preferably, IR2175 phase current testing circuit is connected with first group of ADC analog to digital conversion circuit on the digital signal controller by first group of HCPL7840 analog photoelectricity coupler circuit;
After the isolation of 6N137 digital light electric coupling circuit, be connected with the IRAMS10UP60A Intelligent Power Module;
Linear hall sensor is connected with second group of ADC analog to digital conversion circuit on the digital signal controller by passive bandwidth-limited circuit, second group of HCPL7840 analog photoelectricity coupler circuit.
As preferably, described linear hall sensor is 3, and is trisection and is distributed on the motor stator.
By technical solutions of the utility model, use linear hall sensor to replace switch Hall transducer and incremental optical-electricity encoder, utilize microprocessor that the analog voltage output signal of linear hall sensor is analyzed, can realize that electric motor starting, commutation, rotor-position and speed detect; Carry out in the situation of rest frame and the mutual conversion of rotating coordinate system not needing, also can realize the field orientation control identical with existing AC servo control system performance; And used improved signal processing software, greatly reduced computational complexity, saved Material Cost, reduced manufacturing process, improved system reliability.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Embodiment 1
AC servo control system based on linear hall sensor, as shown in Figure 1, comprise control system and the transducer that is installed on the motor stator, described transducer is linear hall sensor, and linear hall sensor is connected with control system by passive bandwidth-limited circuit.
Control circuit mainly is made of digital signal controller and peripheral circuit:
Peripheral circuit comprises RS232 serial port circuit, 6N137 digital light electric coupling circuit and first group of HCPL7840 analog photoelectricity coupling circuit, second group of HCPL7840 analog photoelectricity coupling circuit; Power circuit comprises that power-supply filter, rectification/mild filter circuit, Active PFC/soft starting circuit and DC/DC frequency changer circuit consist of; Drive circuit comprises IRAMS10UP60A Intelligent power module circuit, IR2175 phase current testing circuit and protective circuit.IR2175 phase current testing circuit is connected with first group of ADC analog to digital conversion circuit on the digital signal controller by first group of HCPL7840 analog photoelectricity coupler circuit; After the isolation of 6N137 digital light electric coupling circuit, be connected with the IRAMS10UP60A Intelligent Power Module; Linear hall sensor is connected with second group of ADC analog to digital conversion circuit on the digital signal controller by passive bandwidth-limited circuit, second group of HCPL7840 analog photoelectricity coupler circuit.Described linear hall sensor is 3, and is trisection and is distributed on the motor stator.Digital signal controller is the dsPIC30F3010A chip; pwm signal generator, the maximum slew rate that described digital signal controller is provided with 16 hardware timers, insert function with the dead band is the external equipment of 10 Precision A/D of per second 100 ten thousand times, and peripheral circuit also comprises electrify restoration circuit, keyboard-display circuit, DC-bus voltage sampling circuit, overcurrent/excess voltage protection etc.
Take permagnetic synchronous motor as example, at motor stator 3 linear hall sensors are installed, after 3 road analog voltage signals of linear hall sensor output carry out the simple signal conditioning through passive bandwidth-limited circuit, be connected with second group of ADC analog to digital conversion circuit on the digital signal controller by second group of HCPL7840 analog photoelectricity coupler circuit, after break-in, speed, position calculation unit adjusting, realize motor position detection signal feed back input; Equally, 2 road electric machine phase current signals are by behind the resistance sampling, be converted to voltage signal, after the output of IR2175 phase current testing circuit, be connected with first group of ADC analog to digital conversion circuit on the digital signal controller by first group of HCPL7840 analog photoelectricity coupler circuit, realize the input of electric machine phase current signal feedback; External position or speed control signal are by RS232 serial port circuit supplied with digital signal controller, after adjusting is calculated through inner FLASH storage controlled processing unit, digital signal controller is by the symmetrical PWM conditioning signal of MCPWM signal generation unit output with the dead band, after the isolation of 6N137 digital light electric coupling circuit, be connected with the IRAMS10UP60A Intelligent Power Module, the control of realization electric machine phase current, and then realize motor speed, position adjustments.
After the fault-signal of IRAMS10UP60A Intelligent Power Module output, the phase current signal that utilizes the input of HCPL7840 analog photoelectricity coupler circuit, bus voltage signal etc. compare by comparator and certain voltage setting value separately, comparative result is by an OR circuit, be connected with fault input pin FLTA/FLTB on the digital signal controller, in order to when overcurrent, overvoltage, overload, the fault such as overheated occur, can in time end the output of pwm signal.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (4)
1. based on the AC servo control system of linear hall sensor, comprise control system and the transducer that is installed on the motor stator, it is characterized in that: described transducer is linear hall sensor, and linear hall sensor is connected with control system by passive bandwidth-limited circuit.
2. the AC servo control system based on linear hall sensor according to claim 1, it is characterized in that: described control system comprises power circuit, control circuit and drive circuit;
Control circuit mainly is made of digital signal controller and peripheral circuit:
Peripheral circuit comprises RS232 serial port circuit, 6N137 digital light electric coupling circuit and first group of HCPL7840 analog photoelectricity coupling circuit, second group of HCPL7840 analog photoelectricity coupling circuit;
Power circuit comprises that power-supply filter, rectification/mild filter circuit, Active PFC/soft starting circuit and DC/DC frequency changer circuit consist of;
Drive circuit comprises IRAMS10UP60A Intelligent power module circuit, IR2175 phase current testing circuit and protective circuit.
3. described AC servo control system based on linear hall sensor according to claim 2, it is characterized in that: IR2175 phase current testing circuit is connected with first group of ADC analog to digital conversion circuit on the digital signal controller by first group of HCPL7840 analog photoelectricity coupler circuit;
After the isolation of 6N137 digital light electric coupling circuit, be connected with the IRAMS10UP60A Intelligent Power Module;
Linear hall sensor is connected with second group of ADC analog to digital conversion circuit on the digital signal controller by passive bandwidth-limited circuit, second group of HCPL7840 analog photoelectricity coupler circuit.
4. the AC servo control system based on linear hall sensor according to claim 1, it is characterized in that: described linear hall sensor is 3, and is trisection and is distributed on the motor stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205542328U CN202906811U (en) | 2012-10-26 | 2012-10-26 | AC servo control system based on linear Hall sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205542328U CN202906811U (en) | 2012-10-26 | 2012-10-26 | AC servo control system based on linear Hall sensor |
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| CN202906811U true CN202906811U (en) | 2013-04-24 |
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| CN2012205542328U Expired - Fee Related CN202906811U (en) | 2012-10-26 | 2012-10-26 | AC servo control system based on linear Hall sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411192A (en) * | 2016-08-31 | 2017-02-15 | 刘世超 | Method for realizing motor accurate control by using linear Hall sensors |
| CN106500584A (en) * | 2016-09-29 | 2017-03-15 | 南京邮电大学 | A kind of angle measurement system and measuring method based on linear hall sensor |
| CN108809165A (en) * | 2018-06-29 | 2018-11-13 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of AC servo driver system and control method |
| CN111596633A (en) * | 2020-06-15 | 2020-08-28 | 中国人民解放军63796部队 | Industrial control system of high security |
-
2012
- 2012-10-26 CN CN2012205542328U patent/CN202906811U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411192A (en) * | 2016-08-31 | 2017-02-15 | 刘世超 | Method for realizing motor accurate control by using linear Hall sensors |
| CN106500584A (en) * | 2016-09-29 | 2017-03-15 | 南京邮电大学 | A kind of angle measurement system and measuring method based on linear hall sensor |
| CN106500584B (en) * | 2016-09-29 | 2019-10-22 | 南京邮电大学 | A kind of angle measurement system and measurement method based on linear hall sensor |
| CN108809165A (en) * | 2018-06-29 | 2018-11-13 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of AC servo driver system and control method |
| CN111596633A (en) * | 2020-06-15 | 2020-08-28 | 中国人民解放军63796部队 | Industrial control system of high security |
| CN111596633B (en) * | 2020-06-15 | 2021-07-09 | 中国人民解放军63796部队 | Industrial control system |
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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 |
Granted publication date: 20130424 Termination date: 20141026 |
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| EXPY | Termination of patent right or utility model |