CN114024467A - Position control method using self-contained protection device of motor - Google Patents
Position control method using self-contained protection device of motor Download PDFInfo
- Publication number
- CN114024467A CN114024467A CN202111148708.8A CN202111148708A CN114024467A CN 114024467 A CN114024467 A CN 114024467A CN 202111148708 A CN202111148708 A CN 202111148708A CN 114024467 A CN114024467 A CN 114024467A
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- China
- Prior art keywords
- motor
- protection device
- stroke
- position control
- driving equipment
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000000670 limiting effect Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a position control method by using a self-contained protection device of a motor, which is used for controlling the position of driving equipment using the motor as a driving element, and comprises the following steps: the end positions of the two ends of the stroke of the driving equipment are respectively provided with a fixed stop part, and the fixed stop parts are utilized to limit the stroke of the driving equipment; when the driving equipment runs to the stroke end point and props against the fixed stop piece, the motor is controlled to stop running by utilizing an alarm signal fed back by a protection device of the motor. According to the position control method using the protection device provided by the motor, the fixed stop parts are respectively arranged at the two ends of the operation stroke of the driving equipment, the protection device provided by the motor is used for detecting and limiting the position of the driving equipment, the position control function of the driving equipment can be realized under the condition that a position limiter or a stroke limiter cannot be arranged outside the driving equipment for position detection and limitation, and the cost of the control equipment can be reduced.
Description
Technical Field
The invention relates to the technical field of motor control, in particular to a position control method by using a protection device carried by a motor.
Background
With the continuous development of industrial technology, the performance requirements for the driving device are more and more, for example, the driving device is required to have a position control function. Conventionally, in order to realize a position control function of a drive device, it is common to control or limit the position of the drive device by mounting an external device such as a position limiter or a stroke limiter, for example, a mechanical limit mechanism or a proximity switch, on the outside of the drive device. However, in some special cases where the position limiter or the stroke limiter cannot be installed outside the driving device, for example, the position limiter or the stroke limiter cannot be installed outside the driving device due to the limitation of the space where the driving device is located or the limitation of the structural material of the driving device, the position control function of the driving device cannot be realized.
Disclosure of Invention
In order to solve some or all technical problems in the prior art, the invention provides a position control method using a protection device of a motor.
The technical scheme of the invention is as follows:
there is provided a position control method using a protection device provided in a motor, the method being used for position control of a drive apparatus using the motor as a drive element, comprising:
the end positions of the two ends of the stroke of the driving equipment are respectively provided with a fixed stop part, and the fixed stop parts are utilized to limit the stroke of the driving equipment;
when the driving equipment runs to the stroke end point and props against the fixed stop piece, the motor is controlled to stop running by utilizing an alarm signal fed back by a protection device of the motor.
Further, in the position control method using the self-contained motor protection device, the stroke limiter is arranged outside the driving device to detect and limit the stroke of the driving device, and whether the motor fails or not and whether the stroke limiter fails or not are judged according to the detection signal of the stroke limiter and the alarm signal fed back by the self-contained motor protection device.
Further, in the position control method using the self-contained motor protection device, the determining whether the motor has a fault or not and whether the stroke limiter has a fault or not according to the detection signal of the stroke limiter and the alarm signal fed back by the self-contained motor protection device includes:
and if the alarm signal fed back by the protection device of the motor is received and the detection signal of the stroke limiter is not received, judging that the motor or the stroke limiter breaks down.
Further, in the position control method using the self-contained protection device of the motor, the stroke limiter comprises a proximity switch.
Further, in the position control method using the self-contained protection device of the motor, the self-contained protection device of the motor comprises at least one of a motor locked-rotor protection device, a motor overcurrent protection device and a motor overheat protection device.
The technical scheme of the invention has the following main advantages:
according to the position control method using the protection device provided by the motor, the fixed stop parts are respectively arranged at the two ends of the operation stroke of the driving equipment, the protection device provided by the motor is used for detecting and limiting the position of the driving equipment, the position control function of the driving equipment can be realized under the condition that a position limiter or a stroke limiter cannot be arranged outside the driving equipment for position detection and limitation, and the cost of the control equipment can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a position control method using a self-contained protection device of a motor according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1, in a first aspect, an embodiment of the present invention provides a position control method for a driving apparatus using a protection device carried by a motor, the method being used for position control of the driving apparatus using the motor as a driving element, the method including:
the end positions of the two ends of the stroke of the driving equipment are respectively provided with a fixed stop part, and the fixed stop parts are utilized to limit the stroke of the driving equipment;
when the driving equipment runs to the stroke end point and props against the fixed stop piece, the motor is controlled to stop running by utilizing an alarm signal fed back by a protection device of the motor.
Specifically, when the position limiter or the stroke limiter cannot be installed outside the driving device for position detection limitation, if the driving device has a fixed operation stroke, fixed stop members are respectively arranged at end positions at two ends of the operation stroke of the driving device, and the fixed stop members are used for limiting the stroke of the driving device; when the driving device runs to the stroke end point, the driving device props against the fixed stop piece, the motor of the driving device still keeps a running state until a protection device of the motor is triggered, the protection device of the motor feeds back an alarm signal to a control unit of the motor, and the control unit is used for controlling the motor to stop running based on the fed-back alarm signal.
Taking a driving device as an example of an electric push rod, in the process of pushing out and retracting the electric push rod, after the electric push rod moves to a specified stroke end position to abut against a fixed stop part, the electric push rod still keeps a running state because a motor of the electric push rod does not receive a stroke in-place signal, but the electric push rod cannot advance or retract, at the moment, the motor of the electric push rod is locked to generate a heating phenomenon to trigger motor locked-rotor protection pre-embedded in a motor coil, and a control unit of the motor locked-rotor protection steering motor receives an alarm signal so as to enable the control unit to control the motor to stop running, thereby realizing the stroke limiting effect.
Therefore, in the position control method using the self-contained protection device of the motor according to the embodiment of the present invention, the fixed stoppers are respectively disposed at the two ends of the operation stroke of the driving device, and the self-contained protection device of the motor is used to detect and limit the position of the driving device, so that the position control function of the driving device can be realized under the condition that the position limiter or the stroke limiter cannot be mounted outside the driving device to perform position detection and limitation, and the cost of the control device can be reduced.
Further, if a stroke limiter can be installed outside the driving device to detect and limit the stroke of the driving device, whether the motor fails or not and whether the stroke limiter fails or not can be determined according to a detection signal of the stroke limiter and an alarm signal fed back by a protection device of the motor.
Specifically, the method for judging whether the motor fails or not and whether the stroke limiter fails or not according to a detection signal of the stroke limiter and an alarm signal fed back by a protection device of the motor comprises the following steps:
and if the alarm signal fed back by the protection device of the motor is received and the detection signal of the stroke limiter is not received, judging that the motor or the stroke limiter breaks down.
When the stroke limiter can be installed outside the driving equipment, the fixed stop parts are respectively arranged at the two ends of the running stroke of the driving equipment, so that whether the motor and the stroke limiter break down or not can be judged by utilizing an alarm signal fed back by a protection device of the motor and a detection signal of the stroke limiter in the running process of the driving equipment, and the fault detection rate of the driving equipment and the stroke limiter is effectively improved.
Optionally, the stroke limiter comprises a proximity switch mounted at an end of the operational stroke of the drive device.
Further, in an embodiment of the present invention, the protection device provided on the motor may include at least one of a motor stalling protection device, a motor overcurrent protection device, and a motor overheating protection device.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A position control method using a protection device provided in a motor, the method being used for position control of a drive apparatus using the motor as a drive element, comprising:
the end positions of the two ends of the stroke of the driving equipment are respectively provided with a fixed stop part, and the fixed stop parts are utilized to limit the stroke of the driving equipment;
when the driving equipment runs to the stroke end point and props against the fixed stop piece, the motor is controlled to stop running by utilizing an alarm signal fed back by a protection device of the motor.
2. The position control method according to claim 1, wherein a stroke limiter is installed outside the driving device to limit the stroke of the driving device, and whether the motor has a failure or not and whether the stroke limiter has a failure or not are determined based on a detection signal of the stroke limiter and an alarm signal fed back from the protection device provided with the motor.
3. The method as claimed in claim 2, wherein the determining whether the motor is out of order and the stroke limiter is out of order according to the detection signal of the stroke limiter and the alarm signal fed back by the protection device of the motor itself comprises:
and if the alarm signal fed back by the protection device of the motor is received and the detection signal of the stroke limiter is not received, judging that the motor or the stroke limiter breaks down.
4. The position control method using the self-contained protection device of the motor according to claim 3, wherein the stroke limiter comprises a proximity switch.
5. The position control method using the self-contained protection device of the motor according to any one of claims 1 to 4, wherein the self-contained protection device of the motor comprises at least one of a motor stalling protection device, a motor overcurrent protection device and a motor overheat protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148708.8A CN114024467A (en) | 2021-09-29 | 2021-09-29 | Position control method using self-contained protection device of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148708.8A CN114024467A (en) | 2021-09-29 | 2021-09-29 | Position control method using self-contained protection device of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114024467A true CN114024467A (en) | 2022-02-08 |
Family
ID=80055316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111148708.8A Pending CN114024467A (en) | 2021-09-29 | 2021-09-29 | Position control method using self-contained protection device of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024467A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010130795A (en) * | 2008-11-27 | 2010-06-10 | Koganei Corp | Control device for electric actuator |
| CN202750036U (en) * | 2012-09-11 | 2013-02-20 | 宁波精华电子科技有限公司 | Light adjusting motor control circuit of automotive headlamp |
| CN206947933U (en) * | 2017-07-10 | 2018-01-30 | 上海笙阳数码设备有限公司 | A kind of motor control assembly for being used to detect stall |
| CN109729890A (en) * | 2019-03-12 | 2019-05-10 | 梁殿亮 | A kind of protective device and method for heliogreenhouse air discharging machine, shutter |
| CN110828224A (en) * | 2019-10-30 | 2020-02-21 | 国网宁夏电力有限公司检修公司 | Automatic isolating switch control method based on vector control |
| CN213593957U (en) * | 2020-07-31 | 2021-07-02 | 宁波瑞利时数控科技有限公司 | Double-servo gantry moving platform |
-
2021
- 2021-09-29 CN CN202111148708.8A patent/CN114024467A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010130795A (en) * | 2008-11-27 | 2010-06-10 | Koganei Corp | Control device for electric actuator |
| CN202750036U (en) * | 2012-09-11 | 2013-02-20 | 宁波精华电子科技有限公司 | Light adjusting motor control circuit of automotive headlamp |
| CN206947933U (en) * | 2017-07-10 | 2018-01-30 | 上海笙阳数码设备有限公司 | A kind of motor control assembly for being used to detect stall |
| CN109729890A (en) * | 2019-03-12 | 2019-05-10 | 梁殿亮 | A kind of protective device and method for heliogreenhouse air discharging machine, shutter |
| CN110828224A (en) * | 2019-10-30 | 2020-02-21 | 国网宁夏电力有限公司检修公司 | Automatic isolating switch control method based on vector control |
| CN213593957U (en) * | 2020-07-31 | 2021-07-02 | 宁波瑞利时数控科技有限公司 | Double-servo gantry moving platform |
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