CN207039494U - A kind of redundancy three-phase brushless dc motor control circuit - Google Patents
A kind of redundancy three-phase brushless dc motor control circuit Download PDFInfo
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- CN207039494U CN207039494U CN201720551398.7U CN201720551398U CN207039494U CN 207039494 U CN207039494 U CN 207039494U CN 201720551398 U CN201720551398 U CN 201720551398U CN 207039494 U CN207039494 U CN 207039494U
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Abstract
The utility model provides a kind of redundancy three-phase brushless dc motor control circuit, and the control circuit includes controller, the first driver, the second driver, monitor and external brushless electric machine；Matching degree between the first operating condition information that brushless electric machine the second operating condition information and controller obtained according to monitor is sent, failure judgement driver, brushless electric machine reliability of operation is not only effectively increased, and realizes the real-time monitoring to brushless electric machine.
Description
Technical field
Field of electromechanical integration is the utility model is related to, electricity is controlled more particularly to a kind of redundancy three-phase brushless dc motor
Road.
Background technology
Brushless electric machine is a kind of electromechanical integrated product, has been obtained extensively in fields such as Aero-Space, information, household electrical appliances, medical treatment
General application.
The performance of brushless electric machine is largely dependent on the performance of control circuit.In general circuit for controlling motor using
Non- redundant circuit, circuit cisco unity malfunction will be caused in the event of power device failure, motor can not run well.At present
Part employs the circuit of redundancy of effort mode using controller redundancy or drive redundancy, between controller and driver
Need interactive correspondence with determine driver whether normal work, if working controller and driver break down simultaneously, by nothing
Timely and accurately failure judgement driver, running reliability of motor are poor for method.
Therefore, a technical problem for needing those skilled in the art urgently to solve at present is exactly：A kind of redundancy three is provided
Phase brushless DC motor control circuit, failed drive can be timely and accurately determined, improve running reliability of motor, enhancing pair
Motor monitors in real time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of redundancy three-phase brushless dc motor control circuit, energy
It is enough timely and accurately to determine failed drive, running reliability of motor is improved, is strengthened to the real-time monitoring of motor.
In order to solve the above problems, the utility model discloses a kind of redundancy three-phase brushless dc motor control circuit, its
It is characterised by, the control circuit includes controller, the first driver, the second driver, monitor and external brushless electricity
Machine；
The controller is connected with first driver, the second driver, monitor respectively, first driver,
Second driver, monitor are also connected with the brushless electric machine respectively, the monitor also respectively with first driver,
Two drivers are connected；
The controller sends motor command signal to first driver, the second driver and monitor simultaneously；Institute
State the first operating condition information that motor command signal includes the brushless electric machine；
First driver drives brushless electric machine operating according to the motor command signal；
The monitor receives the hall signal of the brushless electric machine feedback, and according to hall signal and the brushless electric machine
Proportionate relationship between the relative position of operating, and the real-world operation time of the brushless electric machine and initial position message, are obtained
Obtain the second operating condition information of the brushless electric machine；According to the first operating condition information and described second of the brushless electric machine
Matching degree between operating condition information judges whether first driver breaks down.
Preferably, when the first operating condition information includes the schedule operating time and pre-determined bit of the brushless electric machine
During the corresponding relation of confidence breath, the monitor operates according to the hall signal received, and hall signal with brushless electric machine
Relative position between proportionate relationship, and the initial position message of the brushless electric machine, obtain working as the brushless electric machine
Front position information；According to the current location information, and pre-determined bit corresponding with the real-world operation time of the brushless electric machine
Confidence ceases, and calculates matching degree therebetween, if the matching degree is less than the first matching threshold, judges first driving
Device breaks down.
Preferably, when the first operating condition information includes the default running speed of the brushless electric machine, the prison
Device is controlled to be closed according to the ratio between the hall signal received, and hall signal and the relative position of brushless electric machine operating
System, and the real-world operation time of the brushless electric machine, the average operating speed of the brushless electric machine is obtained, according to described average
Running speed and default running speed, calculate matching degree therebetween, if the matching degree is less than the second matching threshold,
Then judge that the first driver breaks down.
Preferably, the circuit of first driver and the second driver is completely the same, and second driver is described
First driver switches to working condition when breaking down.
Compared with background technology, the utility model has advantages below：
The utility model provides a kind of redundancy three-phase brushless dc motor control circuit, is obtained according to monitor brushless
Matching degree between the first operating condition information that motor the second operating condition information and controller are sent, failure judgement driving
Device, brushless electric machine reliability of operation is not only effectively increased, and realize the real-time monitoring to brushless electric machine.
Brief description of the drawings
Fig. 1 is a kind of circuit structure diagram of redundancy three-phase brushless dc motor control circuit embodiment of the present utility model.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
Reference picture 1, show a kind of electricity of redundancy three-phase brushless dc motor control circuit embodiment of the present utility model
Line structure figure, it can specifically include：Controller 11, the first driver 12, the second driver 14, monitor 13 and external nothing
Brush motor 15.
Controller 11 is connected with the first driver 12, the second driver 14, monitor 13 respectively, the first driver 12,
Two drivers 14, monitor 13 are also connected with brushless electric machine 15 respectively, and monitor 13 also drives with the first driver 12, second respectively
Dynamic device 14 is connected.
Controller 11 receives the order from host computer or hander, and mentioned order is identified, while to first
Driver 12, the second driver 14 and monitor 13 send motor command signal.Motor command signal can include brushless electric machine
The first operating condition information such as 15 schedule operating time and the corresponding relation of precalculated position information and default running speed.
The circuit of wherein the first driver 12 and the second driver 14 is completely the same, and the first driver 12 is start acquiescence
Task driven device, the second driver 14 switch to working condition when the first driver 12 breaks down.
First driver 12 calculates corresponding PWM and adjusts bandwidth signals and be sent to drive according to the motor command signal received
Dynamic chip, and then drive brushless electric machine 15 to operate.
Monitor 13 receives the hall signal that brushless electric machine 15 feeds back, and operated according to hall signal and brushless electric machine 15
Proportionate relationship between relative position, and the real-world operation time of brushless electric machine 15 and initial position message, obtain brushless electricity
Second operating condition information of machine 15；According between the first operating condition information and the second operating condition information of brushless electric machine 15
Matching degree judge whether the first driver 12 breaks down.
In actual applications, between the relative position that the hall signal and brushless electric machine 15 that brushless electric machine 15 feeds back operate
Proportionate relationship can obtain beforehand through theoretical calculation or repetition test, and be pre-stored to monitor 13.
When the first operating condition information that controller 11 is sent includes the schedule operating time of brushless electric machine 15 and makes a reservation for
During the corresponding relation of positional information, monitor 13 is transported according to the hall signal received, and hall signal with brushless electric machine 15
Proportionate relationship between the relative position turned, and the initial position message of brushless electric machine 15, obtain the current of brushless electric machine 15
Positional information；According to above-mentioned current location information, and pre-determined bit confidence corresponding with the real-world operation time of brushless electric machine 15
Breath, calculates matching degree therebetween, if the matching degree is less than the first matching threshold, judges that the first driver 12 occurs
Failure.
In actual applications, can by the current location information of brushless electric machine 15 with respect to precalculated position information error come
Assess matching degree therebetween.If relative error within ± 5%, can be determined that the two matching, i.e. the first driver
12 is working properly；Otherwise the first driver 12 breaks down, the second driver 14 of switching to working condition.
When the first operating condition information that controller 11 is sent includes the default running speed of brushless electric machine 15, monitor
Proportionate relationship between the hall signal that 13 bases receive, and hall signal and the relative position of the operating of brushless electric machine 15,
And the real-world operation time of brushless electric machine 15, obtain brushless electric machine 15 average operating speed, according to average operating speed with
And default running speed, matching degree therebetween is calculated, if matching degree is less than the second matching threshold, judges the first driving
Device 12 breaks down.
In actual applications, can by the error of the average operating speed absolute presupposition running speed of brushless electric machine 15 come
Assess matching degree therebetween.If relative error within ± 5%, can be determined that the two matching, i.e. the first driver
12 is working properly；Otherwise the first driver 12 breaks down, the second driver 14 of switching to working condition.
In a kind of preferred embodiment of the present utility model, monitor 13 is real-time by the operating condition information of brushless electric machine 15
Feed back to the first driver 12 and the second driver 14, it is ensured that operating condition information is timely and effective.
The operating condition information for the brushless electric machine 15 that first driver 12 or the second driver 14 feed back according to monitor 13
Carry out other operations such as speed governing.
The utility model provides a kind of redundancy three-phase brushless dc motor control circuit, is obtained according to monitor brushless
Matching degree between the first operating condition information that motor the second operating condition information and controller are sent, failure judgement driving
Device, brushless electric machine reliability of operation is not only effectively increased, and realize the real-time monitoring to brushless electric machine.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or terminal device including a series of elements are not only wrapped
Those key elements, but also the other element including being not expressly set out are included, or is also included for this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited
Element, it is not excluded that other identical element in the process including the key element, method, article or terminal device also be present.
Above to a kind of redundancy three-phase brushless dc motor control circuit provided by the utility model, detailed Jie has been carried out
Continue, specific case used herein is set forth to principle of the present utility model and embodiment, and above example is said
It is bright to be only intended to help and understand method and its core concept of the present utility model；Meanwhile for those of ordinary skill in the art,
According to thought of the present utility model, there will be changes in specific embodiments and applications, in summary, this explanation
Book content should not be construed as to limitation of the present utility model.
Claims (4)
- A kind of 1. redundancy three-phase brushless dc motor control circuit, it is characterised in that the control circuit includes controller, and first Driver, the second driver, monitor and external brushless electric machine；The controller is connected with first driver, the second driver, monitor respectively, first driver, second Driver, monitor are also connected with the brushless electric machine respectively, and the monitor also drives with first driver, second respectively Dynamic device is connected；The controller sends motor command signal to first driver, the second driver and monitor simultaneously；The electricity Machine command signal includes the first operating condition information of the brushless electric machine；First driver drives brushless electric machine operating according to the motor command signal；The monitor receives the hall signal of the brushless electric machine feedback, and is operated according to hall signal and the brushless electric machine Relative position between proportionate relationship, and the real-world operation time of the brushless electric machine and initial position message, obtain institute State the second operating condition information of brushless electric machine；According to the first operating condition information of the brushless electric machine and the described second operating Matching degree between status information judges whether the first driver breaks down.
- 2. control circuit according to claim 1, it is characterised in that when the first operating condition information includes the nothing When the schedule operating time of brush motor and the corresponding relation of precalculated position information, the monitor is believed according to the Hall received Number, and the proportionate relationship between hall signal and the relative position of brushless electric machine operating, and the brushless electric machine is initial Positional information, obtain the current location information of the brushless electric machine；According to the current location information, and with the brushless electricity Precalculated position information corresponding to the real-world operation time of machine, calculates matching degree therebetween, if the matching degree is less than the One matching threshold, then judge that first driver breaks down.
- 3. control circuit according to claim 1, it is characterised in that when the first operating condition information includes the nothing During the default running speed of brush motor, the monitor according to the hall signal received, and hall signal with it is described brushless Proportionate relationship between the relative position of motor operating, and the real-world operation time of the brushless electric machine, are obtained described brushless The average operating speed of motor, according to the average operating speed and default running speed, matching degree therebetween is calculated, If the matching degree is less than the second matching threshold, judge that first driver breaks down.
- 4. control circuit according to claim 1, it is characterised in that the circuit of first driver and the second driver Completely the same, second driver switches to working condition when first driver breaks down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551398.7U CN207039494U (en) | 2017-05-17 | 2017-05-17 | A kind of redundancy three-phase brushless dc motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551398.7U CN207039494U (en) | 2017-05-17 | 2017-05-17 | A kind of redundancy three-phase brushless dc motor control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207039494U true CN207039494U (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551398.7U Active CN207039494U (en) | 2017-05-17 | 2017-05-17 | A kind of redundancy three-phase brushless dc motor control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510526A (en) * | 2018-10-16 | 2019-03-22 | 汤秉辉 | For controlling the starting control system and starting control method of motor starting |
| CN110311618A (en) * | 2019-08-01 | 2019-10-08 | 四川九洲电器集团有限责任公司 | Electric machine control system |
-
2017
- 2017-05-17 CN CN201720551398.7U patent/CN207039494U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510526A (en) * | 2018-10-16 | 2019-03-22 | 汤秉辉 | For controlling the starting control system and starting control method of motor starting |
| CN110311618A (en) * | 2019-08-01 | 2019-10-08 | 四川九洲电器集团有限责任公司 | Electric machine control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Redundant Three Phase Brushless DC Motor Control Circuit Effective date of registration: 20230519 Granted publication date: 20180223 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: Building 24, 18th Courtyard, Kechuang 13th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Address before: 100176 building 24, yard 18, Fengchuang Science Park, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180223 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980041196 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Redundant Three Phase Brushless DC Motor Control Circuit Granted publication date: 20180223 Pledgee: CHINA ACADEMY OF AEROSPACE AERODYNAMICS Pledgor: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Registration number: Y2024990000150 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |