CN103647256B - Method of motor control, equipment and system - Google Patents
Method of motor control, equipment and system Download PDFInfo
- Publication number
- CN103647256B CN103647256B CN201310643310.0A CN201310643310A CN103647256B CN 103647256 B CN103647256 B CN 103647256B CN 201310643310 A CN201310643310 A CN 201310643310A CN 103647256 B CN103647256 B CN 103647256B
- Authority
- CN
- China
- Prior art keywords
- motor
- contact
- protecting device
- described motor
- restarting
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000006837 decompression Effects 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Motor And Converter Starters (AREA)
Abstract
The invention discloses a kind of method of motor control, equipment and system, the method includes: receives motor decompression and restarts function on signal；Restarting function on signal according to the motor decompression received, what close motor protecting device restarts contact；And in the given time after described motor dead electricity in the unrecovered situation of voltage, what disconnect motor protecting device restarts contact.Due to the present invention can realize motor protecting device restart contact receiving after motor decompression restarts function on signal close; make when " shaking electric " phenomenon occurring or threading off at catalyst; as long as when voltage returns to predetermined value (the 90% of such as rated voltage), catalyst just can adhesive in time predefined; motor is made to restart; thus providing comprehensively protection for motor, improve the reliability of motor running.
Description
Technical field
The present invention relates to Motor Control field, in particular it relates to a kind of method of motor control, a kind of electric motor control device and a kind of motor control system.
Background technology
Owing in the electrical network short time that the reasons such as thunderbolt, short circuit cause, the phenomenon of voltage pulsation or short point is called " shaking electric " phenomenon, " rolling electricity " phenomenon can cause catalyst to thread off (or being called tripping) and cause motor failure, now it is generally required to restart motor.For " shaking electric " phenomenon; devise and possess decompression and restart the motor protecting device of defencive function; after " shake electricity " phenomenon occurs (usual motor protecting device be set in voltage drop to rated voltage about 10% time for occurring " shake electricity " phenomenon); motor protecting device can send the pulse command that decompression is restarted when judging that voltage recovers; what this instruction made motor protecting device restarts contact (for impulse contact) action; so that catalyst adhesive, restart motor.
But, just can open decompression when only dropping to the 10% of rated voltage under voltage due to above-mentioned motor protecting device of the prior art and restart protection act, therefore when voltage drops to about the 60% of rated voltage, motor protecting device will not send the pulse command that decompression is restarted, but actually the catalyst in motor start-up loop has been threaded off and has been made motor out of service, even if therefore recovering after voltage in this case, due to motor protecting device to restart contact not operating because being not received by instruction, cause catalyst without adhesive, cause that motor can not be restarted.
Summary of the invention
For the above-mentioned problems in the prior art, the present invention provides a kind of method of motor control, and the method includes: receives motor decompression and restarts function on signal；Restarting function on signal according to the motor decompression received, what close motor protecting device restarts contact；And in the given time after described motor dead electricity in the unrecovered situation of voltage, what disconnect motor protecting device restarts contact.
Correspondingly, present invention also offers a kind of electric motor control device, this equipment includes: receives device, is used for receiving motor decompression and restarts function on signal；Control device, restart contact for what restart function on signal Guan Bi motor protecting device according to the motor decompression that receives；And restart contact for what disconnect motor protecting device in the unrecovered situation of voltage after described motor dead electricity in the given time.
Additionally, present invention also offers a kind of motor control system, this system includes: motor；And electric motor control device provided by the present invention, wherein said Electronic control equipment is connected with described motor, to carry out corresponding Motor Control operation.
Adopt method of motor control provided by the invention, equipment and system; when " shaking electric " phenomenon occurring or threading off at catalyst; owing to the contact of restarting of motor protecting device is receiving Guan Bi after motor decompression restarts function on signal; as long as making in the given time, when voltage returns to predetermined value (the 90% of such as rated voltage), catalyst just can adhesive; motor is made to restart; control is comprehensively protected, it is ensured that the reliability of motor running thus providing for motor.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below.In the accompanying drawings:
Fig. 1 is the structural representation of the electric motor control device according to one embodiment of the present invention；And
Fig. 2 is the schematic flow diagram of the method for motor control according to one embodiment of the present invention.
Description of reference numerals
100 receive device 200 controls device
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
Fig. 1 is the structural representation of the electric motor control device according to one embodiment of the present invention.As it is shown in figure 1, this electric motor control device may include that reception device 100, it is used for receiving motor decompression and restarts function on signal；Control device 200, restart contact for what restart function on signal Guan Bi motor protecting device according to the motor decompression that receives；And restart contact for what disconnect motor protecting device in the unrecovered situation of voltage after described motor dead electricity in the given time.
Specifically, receive device 100 to receive motor decompression and restart function on signal, for instance it can be the signal that high level or low level etc. have indicative function that this motor decompression restarts function on signal.Control device 200 can according to the motor decompression received restart function on signal (such as high level etc.) Guan Bi motor protecting device restart contact, restart function with actuating motor decompression.Adopt this embodiment, after " shaking electric " phenomenon occurs, as long as meeting the condition that decompression is restarted, it is possible to restart motor.Additionally; even if when voltage drops to about 60% (or other values) of rated voltage; when catalyst is threaded off; owing to the contact of restarting of motor protecting device is closed; as long as making in the given time, when voltage returns to predetermined value (the 90% of such as rated voltage), catalyst just can adhesive; making motor restart, comprehensively protecting control thus providing for motor, it is ensured that the reliability of motor running.
Simultaneously; consider non-" shake electricity " phenomenon situations such as () such as power failures; in order to ensure safety prevent incoming call after motor start suddenly; what control that device 200 can also disconnect motor protecting device in the given time after described motor dead electricity in the unrecovered situation of voltage restarts contact, so that motor can not be restarted.Wherein, the described scheduled time range for the 10-15 second (this scheduled time can according to actual condition carry out rationally arrange or suitably adjust); and controlling device 200 to prestore this scheduled time or receive from motor protecting device, this is not defined by the present invention.
According to one embodiment of the present invention, present invention additionally contemplates that the failure condition (such as the situation such as system short-circuit, ground connection) being likely to occur in actual condition, to improve the safety of whole system.Such as, receive device 100 to can be also used for receiving motor fault signal when restarting junction closure at described motor protecting device, for instance receive (such as, the protection act contact action of motor protecting device) from motor protecting device；And control device 200 is additionally operable to disconnect restarting contact and disconnecting the scram contact of motor protecting device of described motor protecting device according to the motor fault signal received, so that motor can be out of service in time when fault；And the scram contact restarting contact and described motor protecting device of described motor protecting device is closed when described motor fault eliminates, resume operation with described motor.Adopt this embodiment; while function can being restarted realizing motor decompression; the scram contact that can also control motor protecting device when there is motor fault makes motor out of service with restarting contact disconnection; pending fault can again be closing to restore again it and run after eliminating, namely improve the safety of whole electric motor system.
Correspondingly, present invention also offers a kind of method of motor control.Fig. 2 is the schematic flow diagram of the method for motor control according to one embodiment of the present invention.As shown in Figure 2, this method of motor control can be implemented by the existing control unit (controller or control equipment) in motor control system in the form of a computer program or above-mentioned electric motor control device provided by the invention is implemented, and concrete rate-determining steps is as follows:
In step 1001, receive motor decompression and restart function on signal；
In step 1002, restarting function on signal according to the motor decompression received, what close motor protecting device restarts contact；
In step 1003, it is judged that after described motor dead electricity, whether voltage recovers in the given time；
In step 1004, in the given time after described motor dead electricity in the unrecovered situation of voltage, what disconnect motor protecting device restarts contact；And
In step 1005, when after described motor dead electricity, voltage recovers in the given time, what keep motor protecting device restarts junction closure.
Preferably, the described scheduled time range for the 10-15 second.
Additionally, the method also includes: at when restarting junction closure of described motor protecting device, receive motor fault signal；According to the motor fault signal received, disconnect restarting contact and disconnecting the scram contact of motor protecting device of described motor protecting device, so that described motor is out of service；And when described motor fault eliminates, close the scram contact restarting contact and described motor protecting device of described motor protecting device, resume operation with described motor.
Reception that motor decompression in said method step restarts function on signal, motor fault signal, the scheduled time etc., the embodiment arranged etc. be not as it has been described above, repeat them here.
Correspondingly, a kind of motor control system provided by the invention, this motor control system includes: the electric motor control device provided according to the above-mentioned embodiment of the present invention and motor, and wherein said electric motor control device is connected with motor, to carry out corresponding Motor Control operation.Further, this system not only can the electric motor control device according to embodiment of the present invention included as described above, and this system can also adopt above-mentioned method of motor control carry out correspondingly Motor Control operation.
Adopt method of motor control provided by the invention, equipment and system; when " shaking electric " phenomenon occurring or threading off at catalyst; owing to the contact of restarting of motor protecting device is receiving Guan Bi after motor decompression restarts function on signal; as long as making in time predefined when voltage returns to predetermined value (the 90% of such as rated voltage) catalyst just can adhesive; motor is made to restart; control is comprehensively protected, it is ensured that the reliability of motor running thus providing for motor.
Should be understood that, method of motor control provided by the invention, equipment and system can be applied in any suitable control environment by those skilled in the art, such as air preheater, steam feed pump oil pump, regulation oil pump control etc., to improve the safety and reliability that equipment runs.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can being carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by the present invention separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (5)
1. a method of motor control, the method includes:
Receive motor decompression and restart function on signal；
Restarting function on signal according to the motor decompression received, what close motor protecting device restarts contact；And
In the given time after described motor dead electricity in the unrecovered situation of voltage, what disconnect motor protecting device restarts contact, and wherein the method also includes:
At when restarting junction closure of described motor protecting device, receive motor fault signal；
According to the motor fault signal received, disconnect restarting contact and disconnecting the scram contact of motor protecting device of described motor protecting device, so that described motor is out of service；And
When described motor fault eliminates, close the scram contact restarting contact and described motor protecting device of described motor protecting device, so that described motor resumes operation.
2. method according to claim 1, the wherein said scheduled time range for the 10-15 second.
3. an electric motor control device, this equipment includes:
Receive device, be used for receiving motor decompression and restart function on signal；
Control device; contact is restarted for what restart function on signal Guan Bi motor protecting device according to the motor decompression that receives; and restart contact for what disconnect motor protecting device in the unrecovered situation of voltage after described motor dead electricity in the given time
Wherein said reception device is additionally operable to receive motor fault signal when restarting junction closure at described motor protecting device；And
Described control device is additionally operable to: disconnect restarting contact and disconnecting the scram contact of motor protecting device of described motor protecting device according to the motor fault signal received, so that described motor is out of service；And the scram contact restarting contact and described motor protecting device of described motor protecting device is closed when described motor fault eliminates, so that described motor resumes operation.
4. equipment according to claim 3, what the wherein said scheduled time was ranges for the 10-15 second.
5. a motor control system, this system includes:
Motor；And
Electric motor control device according to claim 3 or 4, wherein said electric motor control device is connected with described motor, to carry out corresponding Motor Control operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643310.0A CN103647256B (en) | 2013-12-03 | 2013-12-03 | Method of motor control, equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310643310.0A CN103647256B (en) | 2013-12-03 | 2013-12-03 | Method of motor control, equipment and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103647256A CN103647256A (en) | 2014-03-19 |
| CN103647256B true CN103647256B (en) | 2016-07-27 |
Family
ID=50252440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310643310.0A Active CN103647256B (en) | 2013-12-03 | 2013-12-03 | Method of motor control, equipment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103647256B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2527031Y (en) * | 2002-02-09 | 2002-12-18 | 天津石油化工公司机械研究所 | Self-starter for low-voltage motor |
| CN202564918U (en) * | 2012-05-03 | 2012-11-28 | 孙长江 | Suspended shock-proof electric device |
| CN202586830U (en) * | 2012-03-27 | 2012-12-05 | 杭州华光电气有限公司 | Automatic start controller for motor |
| CN202917938U (en) * | 2012-10-12 | 2013-05-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Voltage shock preventing system |
-
2013
- 2013-12-03 CN CN201310643310.0A patent/CN103647256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2527031Y (en) * | 2002-02-09 | 2002-12-18 | 天津石油化工公司机械研究所 | Self-starter for low-voltage motor |
| CN202586830U (en) * | 2012-03-27 | 2012-12-05 | 杭州华光电气有限公司 | Automatic start controller for motor |
| CN202564918U (en) * | 2012-05-03 | 2012-11-28 | 孙长江 | Suspended shock-proof electric device |
| CN202917938U (en) * | 2012-10-12 | 2013-05-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Voltage shock preventing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103647256A (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102127582B1 (en) | Driving control device and method for yaw motor of wind turbine | |
| CN102934326B (en) | Power distribution system having priority load control | |
| US20130003429A1 (en) | Power conversion device | |
| KR20160071338A (en) | Power generation system and method with resistive braking capability | |
| US9509132B2 (en) | Switching device for controlling energy supply of a downstream electric motor | |
| US20170187179A1 (en) | Junction box | |
| CN106329474B (en) | Protection device and method of operating the same, computer program product and electrical installation | |
| US20220021233A1 (en) | In-vehicle backup power source control apparatus and in-vehicle backup power source apparatus | |
| CN105826913A (en) | Method for controlling direct current transmission system converter valve and valve base electronic equipment | |
| CN113078878A (en) | PV (photovoltaic) string optimizer and short-circuit protection method thereof | |
| CN106655898A (en) | Electric reactor cabinet control circuit | |
| JP2013169838A (en) | Power source control device | |
| US8040113B2 (en) | Fault tolerant generator or starter/generator with low torque ripple | |
| CN102545375B (en) | Automatic switching on/off method for emergency power supply of power plant | |
| CN203787951U (en) | Three-phase inconsistent protective circuit of circuit breaker | |
| EP3734832B1 (en) | Method, device, and system for controlling operation of generator | |
| CN106330914A (en) | Streaming media live hot backup system | |
| CN103647256B (en) | Method of motor control, equipment and system | |
| CN104767373A (en) | Frequency converter low voltage self-starting control method and system | |
| CN111264012B (en) | Method for black start of energy supply device, bi-directional inverter and energy supply device with bi-directional inverter | |
| CN103615322A (en) | TRT (Top Gas Pressure Recovery Turbine) unit over-speed control system and TRT unit over-speed control method | |
| CN102400112A (en) | System for controlling technological cavity inner temperature | |
| US9969341B2 (en) | Assistance device and method for a power generation system of an aircraft | |
| CN104863835A (en) | Air compressor control method and system | |
| CN105940583A (en) | Integrated soft start and safety shutdown |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |