CN102931900A - High-reliability driving controller for two-phase stepping motor - Google Patents
High-reliability driving controller for two-phase stepping motor Download PDFInfo
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- CN102931900A CN102931900A CN2012104629973A CN201210462997A CN102931900A CN 102931900 A CN102931900 A CN 102931900A CN 2012104629973 A CN2012104629973 A CN 2012104629973A CN 201210462997 A CN201210462997 A CN 201210462997A CN 102931900 A CN102931900 A CN 102931900A
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Abstract
The invention provides a high-reliability driving controller for a two-phase stepping motor, which comprises an active circuit module, a standby circuit module and a redundant switching circuit module. The active circuit module is connected with the standby circuit module by the redundant switching circuit module; the active circuit module, as well as the standby circuit module, comprises an RS232 communication sub-module, a CPU (Central Processing Unit) control sub-module, a subdivision and speed output sub-module and a motor drive sub-module; the RS232 communication sub-modules, the CPU control sub-modules, the subdivision and speed output sub-modules and the motor drive sub-modules are sequentially and correspondingly connected. Compared with the prior art, the high-reliability driving controller provided by the invention has the advantages that a subdivision driving technology is adopted, so that the rotation resolution of a motor is improved and the problems of vibration, noise and torque ripple are obviously solved; the same active and standby circuits are designed according to the characteristics of active and standby windings of the motor; components adopt the radiation resistance design; and the requirements for long service life and high reliability of aerospace products can be met.
Description
Technical field
The present invention relates to the stepping motor technical field, particularly a kind of highly reliable two-phase stepping motor driving governor.
Technical background
At present domestic electric machine controller designed life is 3 years, and maximum drive is subdivided into 32, the SADA of the state virtuous state of outer driver, and the SADE of Switzerland etc., their driver is applied to high orbit mostly, and the life-span was in 5~8 years.
Because the execution unit of motor driver is driving mechanism, and the motor that different driving mechanisms is selected is different, stepping motor or brshless DC motor etc. are arranged, the drive circuit selected of motor driver is also different thus, at present, during most of motor drive controller work, the problem that electric machine rotation produces has resolution low, vibration, noise and torque ripple problem obtain obviously etc., this type of motor drive controller is under space environment, high radiation in the space so that the components and parts on the controller greatly reduce useful life, thereby affect the requirement of space product life-span and reliability.
Summary of the invention
The present invention aims to provide a kind of driving governor that can reliably drive two-phase stepping motor.
The present invention is a kind of highly reliable two-phase stepping motor driving governor, described driving governor comprises main circuit module, standby circuit module and redundancy switching circuit module, described main circuit module is connected by the redundancy switching circuit module with standby circuit module, described main circuit module comprises RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module and motor-driven submodule, described RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module, the motor-driven submodule connects successively, described standby circuit module comprises RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module and motor-driven submodule, described RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module, the motor-driven submodule connects successively, the RS232 communication module is accepted the rate control instruction of host computer and CPU control submodule is delivered in instruction, CPU control submodule is delivered to segmentation and speed output sub-module according to the adjustable pulse signal of different speed output pulse widths, segmentation is delivered to the motor-driven submodule with the speed output sub-module with motor pulses signal after treatment, carries out the Direct to the sun task with Driving Stepping Motor according to the speed of setting.
Among some embodiment, described main circuit module and standby circuit module also are respectively equipped with the current feedback submodule, described motor-driven submodule output port is connected with current feedback submodule input port, described motor drive module input mouth is connected with current feedback submodule input port, the motor feedback current signal has made up the closed-loop control of current of electric in motor pulses signal in segmentation and the speed output sub-module and the current feedback submodule by the emitter follower circuit in the motor-driven submodule, thereby current of electric has been realized the constant currents control of 256 segmentations.
Among some embodiment, described RS232 communication module is connected with host computer by the RS422 communication module.
Among some embodiment, described motor-driven submodule is connected with stepping motor, and described motor drive module drive stepping motor is carried out the Direct to the sun task according to the speed of setting.
Among some embodiment, described motor-driven submodule has the constant-current source circuit that is made of discrete device.
Among some embodiment, described main circuit module is with consistent for the circuit modular structure design, and described main circuit module uses by the switching of redundancy switching circuit module with standby circuit module.
Highly reliable two-phase stepping motor driving governor according to the present invention adopts Subdivision driving technology, the resolution of electric machine rotation is improved, vibration, noise and torque ripple problem be improved significantly, circuit has designed identical master and stand-by circuits according to the characteristics of the active and standby winding of motor, components and parts adopt anti-Irradiation Design, can satisfy the requirement of space product long-life, high reliability.
By reference to the accompanying drawings, can know other aspects of the present invention and advantage according to the description of passing through example explanation purport of the present invention hereinafter.
Description of drawings
By reference to the accompanying drawings, describe in detail by hereinafter describing, can more clearly understand above-mentioned and other feature and advantage of the present invention, wherein:
Fig. 1 is the structure chart of a kind of highly reliable two-phase stepping motor driving governor of the present invention.
Embodiment
Referring to the accompanying drawing that the embodiment of the invention is shown, hereinafter the present invention will be described in more detail.Yet the present invention can be with many multi-form realizations, and should not be construed as the restriction of the embodiment that is subjected in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present invention fully.In these accompanying drawings, for clarity sake, may amplify size and the relative size in layer and zone.
Refer now to Fig. 1 detailed description according to the highly reliable two-phase stepping motor driving governor of the embodiment of the invention.Described driving governor comprises main circuit module, standby circuit module and redundancy switching circuit module 1, described main circuit module is connected by redundancy switching circuit module 1 with standby circuit module, described main circuit module comprises RS232 communicator module 2, CPU controls submodule 3, segmentation and speed output sub-module 4 and motor-driven submodule 5, described RS232 communicator module 2, CPU controls submodule 3, segmentation and speed output sub-module 4, motor-driven submodule 5 connects successively, standby circuit module comprises RS232 communicator module 2, CPU controls submodule 3, segmentation and speed output sub-module 4 and motor-driven submodule 5, described RS232 communicator module 2, CPU controls submodule 3, segmentation and speed output sub-module 4, motor-driven submodule 5 connects successively.
Wherein, RS232 communication module 2 is accepted the rate control instruction of host computer and CPU control submodule 3 is delivered in instruction, CPU control submodule 3 is delivered to segmentation and speed output sub-module 4 according to the adjustable pulse signal of different speed output pulse widths, segmentation is delivered to motor-driven submodule 5 with speed output sub-module 4 with motor pulses signal after treatment, carries out the Direct to the sun task with Driving Stepping Motor 7 according to the speed of setting.
Further, main circuit module and standby circuit module also are respectively equipped with current feedback submodule 6, described motor-driven submodule 5 output ports are connected with current feedback submodule 6 input ports, the motor feedback current signal has made up the closed-loop control of current of electric in motor pulses signal in segmentation and the speed output sub-module 4 and the current feedback submodule 6 by the emitter follower circuit in the motor-driven submodule 5, in the situation that the emitter follower circuit sampling resistor is fixing, the size of winding current depends on the segmentation voltage of output in the module 4, because this segmentation voltage is determined by 256 kinds of voltages of 8 D/A outputs in the module 4, is exactly corresponding each electric current step applies correspondence to D/A preset level so utilize sort circuit realization segmentation actual.The segmentation number that native system adopts, thus reach as high as the constant current control that 256 segmentation current of electric have been realized 256 segmentations.
In the preferred embodiment, the RS232 communication submodule 2 of this motor drive controller is connected with host computer by RS422 communication module 8, motor-driven submodule 5 is connected with stepping motor, and wherein, motor-driven submodule 5 Driving Stepping Motors are carried out the Direct to the sun task according to the speed of setting.
In the preferred embodiment, motor-driven submodule 5 is constant-current source circuits that are made of discrete device of Autonomy development, do not adopt external motor drive module circuit, solved the blockade to the military device of China that foreign vendor from now on may take in the mode of production domesticization.
In the preferred embodiment, described main circuit module is with consistent for the circuit modular structure design, and described main circuit module uses by the switching of redundancy switching circuit module with standby circuit module.
Further introduce three technical schemes of the present invention.
1, subdivide technology
Subdivide technology claims again the micro-stepping control technology, it is one of stepping motor open loop control state-of-the-art technology, utilize computer digit treatment technology and D/A to transform control technology, each phase winding electric current is controlled by constant current, acquisition changes the size and Orientation of its amplitude by rule, realize synchronizing of stepping motor is divided into several thinner micro-steppings.Each micro-stepping may be original basic step pitch tens of/one, or even hundreds of/one.Subdivide technology makes the segmentation of stepping motor step pitch, and resolution improves, and vibration, noise and torque fluctuation problem are greatly improved, and turn round more steady, make stepping motor obtain larger competitiveness in advanced control system (ACS).Because the segmentation step number is more, the resource that CPU takies is more, the segmentation step number is subject to cpu resource, the segmentation step number of normal controller is in 64, electric machine controller maximum drive such as 502 ones in domestic 5 institutes is subdivided into 32, the present invention takes full advantage of the cpu resource in the controller, cpu resource to whole controller is optimized processing, especially the time of each interruption has been carried out reasonable distribution, make the interruption processing time not affect 256 segmentation outputs less than the segmentation time of minimum, thereby make the segmentation step number of electric machine controller reach the maximum 256 that hardware can reach.
2, the motor-drive circuit of autonomous Design
The drive circuit of two-phase stepping motor generally adopts the H bridge circuit of VMOS control at present, the grid level drive integrated circult IR2110(that is used for motor-driven power integrated chip LMD18200, international rectifier IR company that external device commonly used has National Semiconductor (NSC) to produce adds the VMOS pipe) etc., and domestic driving governor spare is owing to the reasons such as technique can't satisfy long-life needs.The present invention is using for reference on the basis of various circuit theories, autonomous Design a kind of motor-drive circuit that drives with constant current that is consisted of by discrete device, realized the localization Design of drive circuit.
3, Radiation hardening design
Requirement for meeting spatial environment irradiation accumulated dose, it is the aluminium sheet of 3mm that the casing of electric machine controller all adopts thickness, select the irradiation index of components and parts more than 30Krad (Si), the components and parts that can't purchase anti-width of cloth requirement are carried out anti-irradiation test, and the components and parts that do not satisfy 30Krad (Si) requirement are taked to paste the anti-Irradiation Design that adds sheet lead at device surface.
In sum as can be known, the present invention has following advantage:
A kind of highly reliable two-phase stepping motor driving governor of the present invention adopts Subdivision driving technology, the resolution of electric machine rotation is improved, vibration, noise and torque ripple problem be improved significantly, circuit has designed identical master and stand-by circuits according to the characteristics of the active and standby winding of motor, components and parts adopt anti-Irradiation Design, can satisfy the requirement of space product long-life, high reliability.
Because should be understood that the present invention, those skilled in the art can realize not breaking away from the spirit or scope of the present invention with many other concrete forms.Although already described embodiments of the invention, the present invention should be understood and these embodiment should be restricted to, make within the spirit and scope of the invention that those skilled in the art can define such as appended claims and change and revise.
Claims (6)
1. highly reliable two-phase stepping motor driving governor, it is characterized in that, comprise main circuit module, standby circuit module and redundancy switching circuit module, described main circuit module is connected by the redundancy switching circuit module with standby circuit module, described main circuit module comprises RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module and motor-driven submodule, described RS232 communicator module, CPU controls submodule, segmentation and speed output sub-module, the motor-driven submodule connects successively
Described standby circuit module comprises that RS232 communicator module, CPU control submodule, segmentation and speed output sub-module and motor-driven submodule, described RS232 communicator module, CPU control submodule, segmentation are connected successively with speed output sub-module, motor-driven submodule
The RS232 communication module is accepted the rate control instruction of host computer and CPU control submodule is delivered in instruction, CPU control submodule is delivered to segmentation and speed output sub-module according to the adjustable pulse signal of different speed output pulse widths, segmentation is delivered to the motor-driven submodule with the speed output sub-module with motor pulses signal after treatment, carries out the Direct to the sun task with Driving Stepping Motor according to the speed of setting.
2. a kind of highly reliable two-phase stepping motor driving governor as claimed in claim 1, it is characterized in that, described main circuit module and standby circuit module also are respectively equipped with the current feedback submodule, described motor-driven submodule output port is connected with current feedback submodule input port, described motor drive module input mouth is connected with current feedback submodule input port, the motor feedback current signal has made up the closed-loop control of current of electric in motor pulses signal in segmentation and the speed output sub-module and the current feedback submodule by the emitter follower circuit in the motor-driven submodule, thereby current of electric has been realized the constant currents control of 256 segmentations.
3. a kind of highly reliable two-phase stepping motor driving governor as claimed in claim 1 is characterized in that, described RS232 communication module is connected with host computer by the RS422 communication module.
4. a kind of highly reliable two-phase stepping motor driving governor as claimed in claim 1, it is characterized in that, described motor-driven submodule is connected with stepping motor, and described motor drive module drive stepping motor is carried out the Direct to the sun task according to the speed of setting.
5. a kind of highly reliable two-phase stepping motor driving governor as claimed in claim 1 is characterized in that, described motor-driven submodule has the constant-current source circuit that is made of discrete device.
6. a kind of highly reliable two-phase stepping motor driving governor as claimed in claim 1 is characterized in that, described main circuit module is with consistent for the circuit modular structure design, and described main circuit module uses by the switching of redundancy switching circuit module with standby circuit module.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107240756A (en) * | 2017-05-19 | 2017-10-10 | 上海宇航***工程研究所 | A kind of antenna expansion controller with on-orbit fault diagnosis and autonomous processing function |
CN108923715A (en) * | 2018-06-11 | 2018-11-30 | 出门问问信息科技有限公司 | Vibrating motor control system and electronic equipment |
CN109150019A (en) * | 2018-08-29 | 2019-01-04 | 西安羚控电子科技有限公司 | The non-similar double redundancy high-reliability electrical machine control system of one kind and control method |
CN109545050A (en) * | 2018-11-30 | 2019-03-29 | 西南民族大学 | Motor experiment case |
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CN1882891A (en) * | 2003-09-22 | 2006-12-20 | 克雷奥以色列有限公司 | Configurable controller |
CN101119092A (en) * | 2007-09-06 | 2008-02-06 | 哈尔滨工业大学 | High subdivided integration type stepper motor driver |
CN102176131A (en) * | 2011-02-25 | 2011-09-07 | 中国原子能科学研究院 | Switching device driven by stepping motor |
CN201976058U (en) * | 2011-02-25 | 2011-09-14 | 中国原子能科学研究院 | Switching device driven by stepper motor for reactor power control system |
CN202150824U (en) * | 2011-08-05 | 2012-02-22 | 李军科 | Hybrid stepping motor drive unit |
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2012
- 2012-11-16 CN CN2012104629973A patent/CN102931900A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1882891A (en) * | 2003-09-22 | 2006-12-20 | 克雷奥以色列有限公司 | Configurable controller |
CN101119092A (en) * | 2007-09-06 | 2008-02-06 | 哈尔滨工业大学 | High subdivided integration type stepper motor driver |
CN102176131A (en) * | 2011-02-25 | 2011-09-07 | 中国原子能科学研究院 | Switching device driven by stepping motor |
CN201976058U (en) * | 2011-02-25 | 2011-09-14 | 中国原子能科学研究院 | Switching device driven by stepper motor for reactor power control system |
CN202150824U (en) * | 2011-08-05 | 2012-02-22 | 李军科 | Hybrid stepping motor drive unit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107240756A (en) * | 2017-05-19 | 2017-10-10 | 上海宇航***工程研究所 | A kind of antenna expansion controller with on-orbit fault diagnosis and autonomous processing function |
CN108923715A (en) * | 2018-06-11 | 2018-11-30 | 出门问问信息科技有限公司 | Vibrating motor control system and electronic equipment |
CN109150019A (en) * | 2018-08-29 | 2019-01-04 | 西安羚控电子科技有限公司 | The non-similar double redundancy high-reliability electrical machine control system of one kind and control method |
CN109545050A (en) * | 2018-11-30 | 2019-03-29 | 西南民族大学 | Motor experiment case |
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Application publication date: 20130213 |