CN202906810U - Brushless direct current motor fuzzy PID control system based on DSP - Google Patents
Brushless direct current motor fuzzy PID control system based on DSP Download PDFInfo
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- CN202906810U CN202906810U CN2012204469170U CN201220446917U CN202906810U CN 202906810 U CN202906810 U CN 202906810U CN 2012204469170 U CN2012204469170 U CN 2012204469170U CN 201220446917 U CN201220446917 U CN 201220446917U CN 202906810 U CN202906810 U CN 202906810U
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
Abstract
The utility model discloses a brushless direct current motor fuzzy PID control system based on DSP. A brushless direct current motor is connected with a photoelectric encoder. The photoelectric encoder which is further connected with a DSP controller is used for detecting the rotating speed and the angular displacement of the brushless direct current motor and giving feedback to the DSP controller. The DSP controller comprises a QEP module, an A/D module, a PWM control module, an SPI module and an SCI module. The QEP module is connected with the photoelectric encoder. The A/D module is connected with a current acquisition circuit. The PWM control module is connected with a drive circuit. The SCI module is connected with a host computer. The SPI module is connected with a display. The control system which adopts the DSP controller as the core and further uses the fuzzy PID control algorithm combines the fuzzy control and the PIC control. Therefore, the control system which not only has the fuzzy control characteristics of flexible control and strong adaptability but also enjoys the advantages of PID control of high flexibility can effectively deal with the uncertainties and nonlinearity of itself. Furthermore, the control system has the advantages of high control precision, good anti-interference capabilities, good dynamic state performances and great static state performances.
Description
Technical field
The utility model relates to a kind of brshless DC motor Fuzzy PID Control System based on DSP.
Background technology
Brushless linear motor is to replace traditional mechanical commutator with electronic commutator, and along with power electronic device develops rapidly and the ripe Mechatronic motor product that gets up.It is a kind of novel stepless speed-change motor, and simple and reliable for structure, easy to maintenance, operational efficiency high is widely used in the fields such as traffic, mine automation and industrial automation.Traditional system that brshless DC motor is controlled is the PID system, its parameter of controlling can't make corresponding adjustment according to the variation of controlled device parameter, low, the poor anti jamming capability of control precision, the dynamic and static poor performance of system.
Summary of the invention
For defects, the utility model provides a kind of brshless DC motor Fuzzy PID Control System based on DSP, and control precision is high, antijamming capability is good, system dynamic and static functional.
To achieve these goals, the technical solution of the utility model is: a kind of brshless DC motor Fuzzy PID Control System based on DSP, comprise main circuit, comprise the inverter bridge module of connecting successively with brshless DC motor, rectification filtering module and power supply, brshless DC motor connects photoelectric encoder, photoelectric encoder is connected with dsp controller, rotating speed and angular displacement for detection of brshless DC motor, and feed back to dsp controller, described dsp controller comprises the QEP module, the A/D module, the PWM control module, the SPI module, the SCI module, described QEP module is connected with photoelectric encoder, obtain the position of brshless DC motor, direction and velocity information, and decode and count, described A/D module links to each other with current collection circuit, be linked on the main circuit, phase current is changed and processed, described PWM control module connects drive circuit, drive circuit access inverter bridge module, position to brshless DC motor, direction and velocity information compare to be processed and the isolation amplification, control the rotating speed of brshless DC motor, described SCI module is connected with host computer, realize the asynchronous serial data communication with host computer, described SPI module is connected with display, and control information is shown at display.
Further, described dsp controller connects protective circuit, and brshless DC motor is carried out overvoltage, overcurrent, dead zone protection and virtual protection.
Control system of the present utility model, take dsp controller as core, use Fuzzy PID, fuzzy control is combined with PID control, both had the flexible and adaptable characteristics of mould class control, have again the high advantage of PID control flexibility ratio, the effective uncertainty of process control system and non-linear has improved the antijamming capability of system.Control precision is high, antijamming capability is good, system dynamic and static functional.
Description of drawings
Fig. 1 is circuit control principle drawing of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, brshless DC motor Fuzzy PID Control System based on DSP of the present utility model, comprise main circuit, comprise the inverter bridge module of connecting successively with brshless DC motor, rectification filtering module and power supply, brshless DC motor connects photoelectric encoder, photoelectric encoder is connected with dsp controller, rotating speed and angular displacement for detection of brshless DC motor, and feed back to dsp controller, described dsp controller comprises the QEP module, the A/D module, the PWM control module, the SPI module, the SCI module, described QEP module is connected with photoelectric encoder, obtain the position of brshless DC motor, direction and velocity information, and decode and count, described A/D module links to each other with current collection circuit, be linked on the main circuit, phase current is changed and processed, described PWM control module connects drive circuit, drive circuit access inverter bridge module, position to brshless DC motor, direction and velocity information compare to be processed and the isolation amplification, control the rotating speed of brshless DC motor, described SCI module is connected with host computer, realize the asynchronous serial data communication with host computer, described SPI module is connected with display, and control information is shown at display.
Described dsp controller connects protective circuit, and brshless DC motor is carried out overvoltage, overcurrent, dead zone protection and virtual protection.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model all falls within the protection range of the present utility model.
Claims (2)
1. brshless DC motor Fuzzy PID Control System based on DSP, comprise main circuit, comprise the inverter bridge module of connecting successively with brshless DC motor, rectification filtering module and power supply, it is characterized in that: brshless DC motor connects photoelectric encoder, photoelectric encoder is connected with dsp controller, rotating speed and angular displacement for detection of brshless DC motor, and feed back to dsp controller, described dsp controller comprises the QEP module, the A/D module, the PWM control module, the SPI module, the SCI module, described QEP module is connected with photoelectric encoder, obtain the position of brshless DC motor, direction and velocity information, and decode and count, described A/D module links to each other with current collection circuit, be linked on the main circuit, phase current is changed and processed, described PWM control module connects drive circuit, drive circuit access inverter bridge module, position to brshless DC motor, direction and velocity information compare to be processed and the isolation amplification, control the rotating speed of brshless DC motor, described SCI module is connected with host computer, realize the asynchronous serial data communication with host computer, described SPI module is connected with display, and control information is shown at display.
2. the brshless DC motor Fuzzy PID Control System based on DSP according to claim 1 is characterized in that: described dsp controller connects protective circuit, and brshless DC motor is carried out overvoltage, overcurrent, dead zone protection and virtual protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204469170U CN202906810U (en) | 2012-09-04 | 2012-09-04 | Brushless direct current motor fuzzy PID control system based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204469170U CN202906810U (en) | 2012-09-04 | 2012-09-04 | Brushless direct current motor fuzzy PID control system based on DSP |
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| CN202906810U true CN202906810U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012204469170U Expired - Fee Related CN202906810U (en) | 2012-09-04 | 2012-09-04 | Brushless direct current motor fuzzy PID control system based on DSP |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186940A (en) * | 2015-10-09 | 2015-12-23 | 淮安市白湖电子科技有限公司 | Brushless DC motor position tracking controller based on fuzzy control |
| CN105207546A (en) * | 2015-09-09 | 2015-12-30 | 黑龙江省能源环境研究院 | Pre-production biogas fermentation control system based on brushless direct current motor |
| CN106707753A (en) * | 2016-12-25 | 2017-05-24 | 北京工业大学 | Pump linear motor adaptive control method |
-
2012
- 2012-09-04 CN CN2012204469170U patent/CN202906810U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207546A (en) * | 2015-09-09 | 2015-12-30 | 黑龙江省能源环境研究院 | Pre-production biogas fermentation control system based on brushless direct current motor |
| CN105186940A (en) * | 2015-10-09 | 2015-12-23 | 淮安市白湖电子科技有限公司 | Brushless DC motor position tracking controller based on fuzzy control |
| CN106707753A (en) * | 2016-12-25 | 2017-05-24 | 北京工业大学 | Pump linear motor adaptive control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20130904 |