CN106843025A - A kind of servo-drive system drive circuit control method - Google Patents
A kind of servo-drive system drive circuit control method Download PDFInfo
- Publication number
- CN106843025A CN106843025A CN201510889208.8A CN201510889208A CN106843025A CN 106843025 A CN106843025 A CN 106843025A CN 201510889208 A CN201510889208 A CN 201510889208A CN 106843025 A CN106843025 A CN 106843025A
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- China
- Prior art keywords
- servo
- control
- drive system
- circuit
- drive
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2609—Process control
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention discloses a kind of control method of servo-drive system drive circuit, its main points is：Four motors are controlled to be separately operable by a CPU control chip.Servo feedback signal condition is amplified into digital processing system by prime analog acquisition circuit, digital processing system is resolved the feedback signal with the control instruction for receiving by servo control algorithm, finally draws driving instruction pwm signal.Four groups of pwm signals are four groups of independent complementary signals.Compared with prior art, its advantage and beneficial effect are：The quantity of control chip is minimized, and has the ability to coordinate control to four motors, substantially increase control efficiency.
Description
Technical field
The present invention relates to servo system control method, run using digital control Schema control servo-drive system, improve the control ability of servo-drive system.
Background technology
The major function of servo-drive system is that the instruction of control servo-drive system executing agency is produced according to command signal and servo-drive system closed loop feedback signal, controlled motor operating, primary control surface control moment.Servo system control method is the core of servo-drive system.
As servo-drive system develops towards high-power, high dynamic, high-torque, miniaturization, servo-drive system controls two groups of states of the art of steering wheel, cannot meet the requirement of miniaturization respectively by two digital control implements.And two control methods of digital control implement, in hardware aspects such as power-supply systems along with the reliability by causing component number is low more and the shortcomings of high cost.
The content of the invention
In view of the shortcomings of the prior art, present solution provides a kind of control method of servo-drive system drive circuit, the quantity of control chip is minimized, and has the ability to coordinate control to four motors, substantially increase control efficiency.
In order to realize above-mentioned technical proposal, present disclosure is as follows：A kind of servo-drive system drive circuit control method, its step is as follows：
By a dsp processor, the four motors work pwm control signal in control servo-drive system is produced；Servo feedback signal condition is amplified into digital processing system by prime analog acquisition circuit, and digital processing system is resolved the feedback signal with the control instruction for receiving by servo control algorithm, finally draws driving instruction pwm signal.
Compared with prior art, the advantage of the invention is that：
1st, CPU produces four groups of pwm signals
Many in existing servo system control method to control two groups of motors to work using a CPU, a CPU common property gives birth to four groups of pwm signals in the method, non-interference between group and group, complementary between signal in group, and four motors can be controlled to operate respectively.
2nd, Bipolar control mode
To improve the control accuracy and control efficiency of level of integrated system, servo-drive system, using bipolar drive mode.The type of drive feature is that control signal form is simple.When PWM duty cycle is 50%, motor cannot be rotated.
Brief description of the drawings
Below with reference to drawings and Examples, the invention will be further described.
Fig. 1 is the schematic diagram of the servo-drive system drive control circuit of the embodiment of the present invention.Digital processing communicating circuit produces four groups of independent complementary pwm signals, by ambipolar mode motor.
Specific embodiment
As shown in figure 1, in the schematic diagram of servo-drive system drive control circuit of the present invention, digital processing communicating circuit produces four groups of independent complementary pwm signals, by ambipolar mode motor.
1st, servo feedback signal condition is amplified into digital processing system by prime analog acquisition circuit, digital processing system is resolved the feedback signal with the control instruction for receiving by servo control algorithm, finally draws driving instruction pwm signal.Four groups of pwm signals are four groups of independent complementary signals.
To reduce interfering for analog circuit, digital circuit and drive circuit, whole circuit power system is mutually isolated in scheme implementation process, individually power supply.Realized by light-coupled isolation wherein between signal generating circuit and power amplification circuit.
2nd, pwm signal adjusts amplification after light-coupled isolation, drives metal-oxide-semiconductor H-bridge circuit, changes the dutycycle of PWM, controlled motor operating.
When PWM duty cycle is 50%, motor positive charge and reverse charging time are equal, then motor driving current in a controlling cycle is zero, so cannot rotate.
Using the control method of servo-drive system drive circuit of the invention, the quantity of control chip is minimized, and have the ability to coordinate control to four motors, substantially increase control efficiency.
Claims (5)
1. a kind of servo-drive system drive circuit control method, it is characterised in that its step is as follows：
By a dsp processor, the four motors work pwm control signal in control servo-drive system is produced；Servo feedback signal condition is amplified into digital processing system by prime analog acquisition circuit, and digital processing system is resolved the feedback signal with the control instruction for receiving by servo control algorithm, finally draws driving instruction pwm signal.
2. servo-drive system drive circuit control method according to claim 1, it is characterised in that the motor is driven by pwm signal, is controlled in Bipolar control mode.
3. servo-drive system drive circuit control method according to claim 1, it is characterised in that the pwm control signal adjusts amplification after light-coupled isolation, drives metal-oxide-semiconductor H-bridge circuit, changes the dutycycle of PWM, controlled motor operating.
4. servo-drive system drive circuit control method according to claim 1, it is characterised in that the whole circuit power system of the control servo-drive system is mutually isolated, individually power supply.
5. servo-drive system drive circuit control method according to claim 4, it is characterised in that realized by light-coupled isolation between signal generating circuit and power amplification circuit in the control servo-drive system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510889208.8A CN106843025A (en) | 2015-12-07 | 2015-12-07 | A kind of servo-drive system drive circuit control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510889208.8A CN106843025A (en) | 2015-12-07 | 2015-12-07 | A kind of servo-drive system drive circuit control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106843025A true CN106843025A (en) | 2017-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510889208.8A Pending CN106843025A (en) | 2015-12-07 | 2015-12-07 | A kind of servo-drive system drive circuit control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106843025A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748519A (en) * | 2017-11-02 | 2018-03-02 | 中国航天科技集团公司烽火机械厂 | A kind of driving control system and its controller used and control method |
| CN112650112A (en) * | 2020-12-18 | 2021-04-13 | 湖南金翎箭信息技术有限公司 | Steering engine control method |
| CN113741229A (en) * | 2020-05-29 | 2021-12-03 | 北京机械设备研究所 | Underwater robot propeller and steering engine integrated control system |
Citations (6)
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| GB2243464A (en) * | 1990-03-23 | 1991-10-30 | Toyoda Machine Works Ltd | Digital servo-control apparatus |
| CN101576745A (en) * | 2009-06-09 | 2009-11-11 | 北京航空航天大学 | Full digital driving controller of permanent magnetic linear voice coil motor used for direct driving valve |
| CN201388064Y (en) * | 2009-04-16 | 2010-01-20 | 新疆全新环保新技术科技有限公司 | Megawatt variable-speed wind turbine generator system employing polyphase generators and multilevel convertors |
| CN101635466A (en) * | 2009-08-28 | 2010-01-27 | 新疆全新环保新技术科技有限公司 | Megawatt-level variable-speed wind-power unit adopting multiphase generator and multilevel converter |
| CN202379084U (en) * | 2011-11-25 | 2012-08-15 | 北京自动化控制设备研究所 | Multi-loop control and high-power driving circuit for quick-response electric steering engine |
| CN104410345A (en) * | 2014-10-24 | 2015-03-11 | 深圳市芯海科技有限公司 | Field programmable gate array (FPGA)-based permanent magnet synchronous motor vector control device and method |
-
2015
- 2015-12-07 CN CN201510889208.8A patent/CN106843025A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2243464A (en) * | 1990-03-23 | 1991-10-30 | Toyoda Machine Works Ltd | Digital servo-control apparatus |
| CN201388064Y (en) * | 2009-04-16 | 2010-01-20 | 新疆全新环保新技术科技有限公司 | Megawatt variable-speed wind turbine generator system employing polyphase generators and multilevel convertors |
| CN101576745A (en) * | 2009-06-09 | 2009-11-11 | 北京航空航天大学 | Full digital driving controller of permanent magnetic linear voice coil motor used for direct driving valve |
| CN101635466A (en) * | 2009-08-28 | 2010-01-27 | 新疆全新环保新技术科技有限公司 | Megawatt-level variable-speed wind-power unit adopting multiphase generator and multilevel converter |
| CN202379084U (en) * | 2011-11-25 | 2012-08-15 | 北京自动化控制设备研究所 | Multi-loop control and high-power driving circuit for quick-response electric steering engine |
| CN104410345A (en) * | 2014-10-24 | 2015-03-11 | 深圳市芯海科技有限公司 | Field programmable gate array (FPGA)-based permanent magnet synchronous motor vector control device and method |
Non-Patent Citations (2)
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| 朱伟兴: "采用DSP的多电机同步控制系统", 《电机控制与应用》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748519A (en) * | 2017-11-02 | 2018-03-02 | 中国航天科技集团公司烽火机械厂 | A kind of driving control system and its controller used and control method |
| CN113741229A (en) * | 2020-05-29 | 2021-12-03 | 北京机械设备研究所 | Underwater robot propeller and steering engine integrated control system |
| CN113741229B (en) * | 2020-05-29 | 2023-06-06 | 北京机械设备研究所 | Underwater robot propeller and steering engine integrated control system |
| CN112650112A (en) * | 2020-12-18 | 2021-04-13 | 湖南金翎箭信息技术有限公司 | Steering engine control method |
| CN112650112B (en) * | 2020-12-18 | 2024-02-27 | 湖南金翎箭信息技术有限公司 | Steering engine control method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |