CN108649861A - A kind of control circuit and control method of motor - Google Patents
A kind of control circuit and control method of motor Download PDFInfo
- Publication number
- CN108649861A CN108649861A CN201810694563.3A CN201810694563A CN108649861A CN 108649861 A CN108649861 A CN 108649861A CN 201810694563 A CN201810694563 A CN 201810694563A CN 108649861 A CN108649861 A CN 108649861A
- Authority
- CN
- China
- Prior art keywords
- motor
- group
- fuse
- switch group
- rectifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention discloses a kind of control circuit of motor and control methods, the control circuit includes first fuse, first switch group, second fuse, driver and motor, the first fuse, the first switch group, the second fuse, the driver and the motor are sequentially connected in series, it is characterized in that, further include rectifier and several capacitance groups, the rectifier is series between the first switch group and the second fuse, the capacitance group is parallel between the rectifier and the second fuse, the control circuit can efficiently use electric energy, reduce motor operating power consumption.
Description
Technical field
The present invention relates to motor control technology field, more particularly to the control circuit and control method of a kind of motor.
Background technology
Currently, motor is used widely in the industrial production, it is it that motor mostly uses greatly three-phase alternating current in the application
Power supply, and to enable motor quickly to stop, it will usually the tandem brake resistance before motor, but in certain application places, such as
In corrugated board automatic production line, then motor continually start and stop and acceleration and deceleration are needed, a large amount of electric energy can be caused to disappear in this way
Consumption causes the waste of electric energy, and then improve energy consumption in braking resistor and circuit impedance.
As it can be seen that the prior art could be improved and improve.
Invention content
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of control circuit of motor and controls
Method processed, it is intended to solve how rationally to utilize electric energy in the prior art, the technology for reducing energy consumption of the motor in production application is asked
Topic.
In order to achieve the above object, one side disclosed by the invention provides a kind of control circuit of motor, including
One fuse, first switch group, second fuse, driver and motor, the first fuse, the first switch group, institute
It states second fuse, the driver and the motor to be sequentially connected in series, further includes rectifier and several capacitance groups, the rectifier
It is series between the first switch group and the second fuse, the capacitance group is parallel to the rectifier and described second
Between fuse.
Further include reactor in a kind of circuit for controlling motor, the reactor is series at the first switch group
Between the rectifier.
Further include resistance and second switch group in a kind of circuit for controlling motor, the resistance is opened with described second
It is in parallel with the capacitance group after the group series connection of pass.
In a kind of circuit for controlling motor, the capacitance group is arranged three.
Disclosed by the invention another aspect provides a kind of control methods of motor, connect first switch group and are passed through exchange
Electricity, alternating current are converted into direct current by rectifier and are stored electronically in capacitance group, and in electric motor starting, capacitance group electric discharge carries for motor
For electric energy；
When motor accelerates, capacitance group electric discharge provides electric energy for motor；
When decelerating through motor or in motor stopped process, motor is in generating state, and generated stalling current is back to capacitance group,
It charges to capacitance group；
Disconnect first switch group, after motor power-off stops completely, connect second switch group, capacitance group electric discharge, the electric energy of release by
Resistance consumption.
In a kind of motor control method, in electric motor starting, alternating current first passes through reactor and enters back into rectifier.
Advantageous effect：
The control circuit and control method of a kind of motor provided by the invention, alternating current are converted into direct current by rectifier and store
In capacitance group, in electric motor starting and moment is accelerated to provide electric energy by capacitance group electric discharge for it, when motor stops and slows down, electricity
Machine when being in generating state generated stalling current be back in capacitance group, for capacitance group charge, pass through capacitance group charge and discharge
Cycle operation can efficiently use electric energy, reduce energy consumption of the motor in production application.
Description of the drawings
Fig. 1 is control circuit structural representation provided by the invention；
Fig. 2 is driving circuit structure schematic diagram provided by the invention.
In figure：
100- first fuses；200- first switch groups；300- second fuses；400- drivers；410- current input terminal mouths；
420- output ports；500- rectifiers；600- capacitance groups；700- reactors；800- resistance；900- second switch groups.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
The present invention provides a kind of control circuit and control method of motor, to make the purpose of the present invention, technical solution and effect
Fruit is clearer, clear, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this place
Specific examples are only used to explain the present invention for description, is not intended to limit the present invention.
It please refers to Fig.1 and Fig. 2, the present invention provides a kind of control circuit of motor, including first fuse 100, first opens
Pass group 200, second fuse 300, driver 400, motor, rectifier 500 and several capacitance groups 600, first switch group 200 by
Two switches are composed in series, and first fuse 100, first switch group 200, rectifier 500 and second fuse 300 are gone here and there successively
Connection, the wherein ports X6 of one end of second fuse 300 and control circuit（Current output terminal mouth）Connection, second fuse 300
The other end and the current input terminal mouth 410 of driver connect, motor connect with the output port 420 of driver 400, the capacitance
Group 600 is connected in parallel on the outlet line of rectifier 500（It is parallel between rectifier 500 and second fuse 300）.In motor
Be powered and start or accelerate to will produce a larger dash current in moment to the of short duration time operated steadily, in decelerating through motor or
Motor can generate stalling current in generating state when stopping, and control electricity in the existing motor using three-phase alternating current power supply
Lu Zhong, above-mentioned dash current and stalling current are converted into thermal energy consumption in braking resistor and circuit impedance and fall, and at this
In circuit for controlling motor, in electric motor starting or moment is accelerated to be discharged from capacitance group 600 to motor offer dash current, subtracted in motor
When speed or stopping, motor generates stalling current in generating state and flows back into capacitance group 600, charges for capacitance group 600,
During motor frequent start-stop or acceleration and deceleration, such as above process cycle operation of capacitance group 600, the effective and reasonable land productivity electric energy of energy,
Reduce energy consumption of the motor in industrial production application.
Further, which further includes reactor 700, and one end and the first switch group 200 of reactor 700 connect
It connects, the other end of reactor 700 and R, S, the T-port of rectifier 500（That is the input terminal of rectifier 500）Connection.The reactor
700 play filter action, it is therefore an objective to the direct current of rectified device output be made more to stablize.
Further, which further includes resistance 800 and second switch group 900, the second switch group 900 equally by
Two switches are composed in series, and resistance 800 is in parallel with capacitance group 600 after connecting with second switch group 900.The resistance 800 acts on
In, when disconnecting first switch group 200, i.e., to motor breakpoint when, second switch group 900 is connected, at this time capacitance group 600 and the electricity
800 forming circuit of resistance, capacitance group 600 are allowed to discharge through resistance 800 and fall the power consumption of the release.
Specifically, capacitance group 600 is arranged three.
A kind of control method of motor provided by the invention connects first switch group and is passed through alternating current, and alternating current passes through whole
Stream device is converted into direct current and is stored electronically in capacitance group, and in electric motor starting, capacitance group electric discharge provides electric energy for motor；
When motor accelerates, capacitance group electric discharge provides electric energy for motor；
When decelerating through motor or in motor stopped process, motor is in generating state, and generated stalling current is back to capacitance group,
It charges to capacitance group；
Disconnect first switch group, after motor power-off stops completely, connect second switch group, capacitance group electric discharge, the electric energy of release by
Resistance consumption.
Further, in electric motor starting, alternating current first passes through reactor and enters back into rectifier.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of control circuit of motor, including first fuse, first switch group, second fuse, driver and motor, institute
First fuse, the first switch group, the second fuse, the driver and the motor is stated to be sequentially connected in series, it is special
Sign is, further includes rectifier and several capacitance groups, and the rectifier is series at the first switch group and second fusing
Between device, the capacitance group is parallel between the rectifier and the second fuse.
2. a kind of control circuit of motor according to claim 1, which is characterized in that further include reactor, the reactance
Device is series between the first switch group and the rectifier.
3. a kind of control circuit of motor according to claim 1, which is characterized in that further include resistance and second switch
Group, the resistance are in parallel with the capacitance group after connecting with the second switch group.
4. according to a kind of control circuit of motor of claim 1-3 any one of them, which is characterized in that the capacitance group setting
Three.
5. a kind of control method of motor, which is characterized in that connect first switch group and be passed through alternating current, alternating current passes through rectifier
It is converted into direct current to be stored electronically in capacitance group, in electric motor starting, capacitance group electric discharge provides electric energy for motor；
When motor accelerates, capacitance group electric discharge provides electric energy for motor；
When decelerating through motor or in motor stopped process, motor is in generating state, and generated stalling current is back to capacitance group,
It charges to capacitance group；
Disconnect first switch group, after motor power-off stops completely, connect second switch group, capacitance group electric discharge, the electric energy of release by
Resistance consumption.
6. a kind of control method of motor according to claim 5, which is characterized in that in electric motor starting, alternating current is first
Rectifier is entered back by reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694563.3A CN108649861A (en) | 2018-06-29 | 2018-06-29 | A kind of control circuit and control method of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694563.3A CN108649861A (en) | 2018-06-29 | 2018-06-29 | A kind of control circuit and control method of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108649861A true CN108649861A (en) | 2018-10-12 |
Family
ID=63749971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810694563.3A Pending CN108649861A (en) | 2018-06-29 | 2018-06-29 | A kind of control circuit and control method of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649861A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005170539A (en) * | 2003-12-08 | 2005-06-30 | Mitsubishi Electric Corp | Elevator control device |
| CN102812238A (en) * | 2010-03-23 | 2012-12-05 | 穆格昂纳公司 | Pitch drive device capable of emergency operation for a wind or water power plant |
| CN208723820U (en) * | 2018-06-29 | 2019-04-09 | 广东佛斯伯智能设备有限公司 | A kind of control circuit of motor |
-
2018
- 2018-06-29 CN CN201810694563.3A patent/CN108649861A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005170539A (en) * | 2003-12-08 | 2005-06-30 | Mitsubishi Electric Corp | Elevator control device |
| CN102812238A (en) * | 2010-03-23 | 2012-12-05 | 穆格昂纳公司 | Pitch drive device capable of emergency operation for a wind or water power plant |
| CN208723820U (en) * | 2018-06-29 | 2019-04-09 | 广东佛斯伯智能设备有限公司 | A kind of control circuit of motor |
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