CN107453652A - Loom and its control method and system for carrying out super startup - Google Patents
Loom and its control method and system for carrying out super startup Download PDFInfo
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- CN107453652A CN107453652A CN201710443267.1A CN201710443267A CN107453652A CN 107453652 A CN107453652 A CN 107453652A CN 201710443267 A CN201710443267 A CN 201710443267A CN 107453652 A CN107453652 A CN 107453652A
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- motor
- loom
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- startup
- super
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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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
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- Power Engineering (AREA)
- Looms (AREA)
Abstract
The present invention provides a kind of loom and its carries out the control method and system of super startup, including：By starting voltage motor, detent torque is obtained, wherein, the voltage that starts is higher than driving voltage corresponding to the running frequency of motor；By controlling the voltage of motor, in first time period, motor is made to maintain detent torque；By controlling the voltage of motor, in the second time period after first time period, the torque of motor is dropped into operation torque by detent torque, wherein, operation torque corresponds to the running frequency.Switch motor connection is not needed in the present invention, staring torque is dynamically adapted, makes control more accurate by stepless speed regulation, adjustment is more convenient, substantially increases the efficiency of loom.
Description
Technical field
The present invention relates to weaving weaving industry loom field, in particular it relates to loom and its carry out the controlling party of super startup
Method and system, especially water-jet loom and its control method and system for carrying out super startup.
Background technology
The presence of bad start-up has a strong impact on fabric quality, the control to bad start-up be weigh fabric quality important indicator it
One of one, and weigh the important indicator of contemporary loom weaving performance.Bad start-up is loom in normal weaving due to disconnected warp, disconnected
The cloth cover barry restarted and formed after caused by loom stop caused by latitude or other reasons, stopped for some reason mainly due to loom
When warp tension change change and cause warp thread creep or relaxation causes cloth fell mobile and it is caused, and knitted after driving
In the first latitude, beating-up force change is most immediate cause caused by bad start-up to machine caused by rotation speed change.
Loom manufacturer both domestic and external and researcher always search for the method for solving this problem.Such as rolled up using electronic warp feeding
Mechanism, weft seeking device are taken, some looms further provided with fell and follow device closely to adjust warp tension, adjust cloth fell,
Influence caused by so as to eliminate warp thread creep and relaxation.But these mechanisms and device will realize its function, to motor and control
Requirement it is all higher.Also some looms solve loom by the way of increase main motor current or using super startup motor
Substantially it is to increase torque when main motor starts during startup the problem of beating-up force deficiency.
Except reducing caused by loom stop as far as possible, optimize knitting technology, improve outside weaving efficiency, solve the problems, such as the first latitude beating-up force
Maximally effective measure is to change detent torque, there is two methods in the market：
(1) for traditional loom more using AC induction motor by clutch mode drive shaft, it is quick in order to obtain
Start super startup effect, the technical scheme used for：Motor in loom uses delta-connection combination star connection, and motor exists
Super startup is realized in start-up course by the switching of delta-connection and star connection, ensure that main shaft plays soon soon stops performance,
So as to ensure that its start-stop angle controls, rated speed can be rapidly reached, recovers beating-up force.Wherein, between motor difference connection
Switching need to use A.C. contactor, the super high current brought that starts is possible to damage A.C. contactor, and is cutting
During changing there is the potential safety hazard for causing fabric to burn in caused arcing.Moreover, AC induction motor is not easy to carry out speed governing, one
As loom can only by adjust belt pulley have level change main shaft speed, add machinery complexity and maintenance difficulties, it is heavier
What is wanted is that can not change detent torque, when same loom faces the fabric of different cultivars, it may appear that the phenomenon of dilute shelves or close shelves,
It is very big by adjusting machinery solution bad start-up difficulty.
(2) overtorque motor is used.Electric motor starting torque multiple is the important indicator of electric motor starting performance quality.Electricity
Machine detent torque and the ratio of Rated motor torque are bigger, then show that motor belt motor carries that startup ability is stronger, and speed rises during startup
Faster, wherein switched reluctance machines are the most typical.Switched reluctance machines frequently forward and backward can start, stop, the control of system
Can be good, control is flexible, it is easy to accomplish the torque of various particular/special requirements.It is former from work but switched reluctance machines have torque pulsation
Reason understand, on switched reluctance motor rotor caused torque there are some row pulse torques to be formed by stacking, due to double-salient-pole
The influence of structure and magnetic circuit saturation nonlinearity, synthesis torque is not a constant torque, but another harmonic component, this influence
Motor low speed runnability, and rotor rotation cloth elongation is by causing the rotation cloth of loom main shaft after 2.5 times of speed reducing ratio
Elongation is difficult to the requirement for meeting that loom slow-speed weft finding positioning precision is less than 1 degree；The noise of motor transmission system is with vibrations than general
Motor is big.And switched reluctance machines and its control section price are extremely expensive, market acceptance is poor.
The content of the invention
For in the prior art the defects of, it is an object of the invention to provide a kind of loom and its carry out the controlling party of super startup
Method and system.
The control method of super startup is carried out according to a kind of loom provided by the invention, is comprised the following steps：
Detent torque produces step：By starting voltage motor, detent torque is obtained, wherein, the startup voltage
Higher than driving voltage corresponding to the running frequency of motor；
Detent torque keeps step：By controlling the voltage of motor, in first time period, motor is made to maintain to start
Torque；
Detent torque dropping step：By controlling the voltage of motor, in the second time period after first time period,
The torque of motor is dropped into operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
The control system of super startup, including following module are carried out according to a kind of loom provided by the invention：
Detent torque generation module：By starting voltage motor, detent torque is obtained, wherein, the startup voltage
Higher than driving voltage corresponding to the running frequency of motor；
Detent torque keeps module：By controlling the voltage of motor, in first time period, motor is made to maintain to start
Torque；
Detent torque falls module：By controlling the voltage of motor, in the second time period after first time period,
The torque of motor is dropped into operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
Preferably, in the start-up course of motor, the connection of motor keeps constant.
Preferably, the motor is the AC induction motor using delta connection.
Preferably, during by starting voltage motor, according to the first latitude speed of setting, dynamic adjustment is opened
Dynamic voltage so that motor reaches the full speed of setting within the time of setting from zero-speed.
Preferably, in first time period, motor is made to maintain detent torque so that motor reaches at the end of first time period
To the second latitude speed of setting.
Preferably, in second time period, the torque of motor is dropped into operation torque by detent torque so that motor exists
Reach the N latitude speed of setting at the end of second time period, wherein, N is the positive integer more than or equal to 3.
Preferably, during by starting voltage motor, detent torque is carried out according to motor down time
Compensation.
According to a kind of loom provided by the invention, including：
- computer-readable recording medium of computer program is stored with, it is real when the computer program is executed by processor
Existing above-mentioned loom carries out the control method of super startup；Or
- above-mentioned loom carries out the control system of super startup.
Compared with prior art, the present invention has following beneficial effect：
1st, the scheme that provides can not only meet loom to acceleration time, the particular/special requirement of detent torque in the present invention,
And, stable, high reliability convenient with speed governing.The pattern of the replacing strap speed varying of complete abandoning tradition, leads to
Crossing stepless speed regulation makes control more accurate, and adjustment is more convenient, substantially increases the efficiency of loom, solves machinery and changes belt pair
The infringement of equipment.
2nd, the present invention, by adjusting acceleration time, output voltage and the retention time of voltage, makes electricity in start-up course
Machine obtains a controllable overtorque, and the dilute shelves of start up, the close shelves occurred for cloth cover, by parameter adjustment, perfection eliminates
Bad start-up, reach customer requirement.
3rd, the system architecture in the present invention is simple, (replaces with and simply watches by changing the motor driver in original system
Clothes driving), you can arc phenomenon caused by A.C. contactor break-make in former star-delta handoff procedure is avoided, improves and is
The security of system.
4th, the motor of system is in the course of the work using fixed delta connection in the present invention, work after start completion
Make in 220V, keep stable, do not influenceed, will not be formed hidden because of the influence in speed caused by voltage change by external voltage
Shelves, flower shelves, remain same speed weaving (± 1 turn), ensure that product quality.
5th, the system in the present invention can also carry out crawl at a slow speed, so as to realize frequent positive and negative operation, according to selection of fabric
Suitable point dynamic frequency, securely and reliably, energy-conserving and environment-protective, does not damage fell.
6th, the motor of the system in the present invention is built-in with the multistage speed method of operation, can easily realize loom speed at any time
Change with requirements of weaving process.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the step flow chart of control method provided by the invention.
Fig. 2 is the structural representation of control system provided by the invention.
Fig. 3 is the principle schematic of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
As shown in figure 1, carrying out the control method of super startup according to a kind of loom provided by the invention, comprise the following steps：
Detent torque produces step：By starting voltage motor, detent torque is obtained, wherein, the startup voltage
Higher than driving voltage corresponding to the running frequency of motor；
Detent torque keeps step：By controlling the voltage of motor, in first time period, motor is made to maintain to start
Torque；
Detent torque dropping step：By controlling the voltage of motor, in the second time period after first time period,
The torque of motor is dropped into operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
Correspondingly, the present invention also provides the control system that a kind of loom carries out super startup, and those skilled in the art can incite somebody to action
The loom carry out super startup control method carried out as the loom super startup control system embodiment, lead to
The step flow for crossing the control method that the loom carries out super startup realizes that the loom carries out the control system of super startup.Specifically
Ground, as shown in Fig. 2 a kind of loom carries out the control system of super startup, including following module：
Detent torque generation module：By starting voltage motor, detent torque is obtained, wherein, the startup voltage
Higher than driving voltage corresponding to the running frequency of motor；
Detent torque keeps module：By controlling the voltage of motor, in first time period, motor is made to maintain to start
Torque；
Detent torque falls module：By controlling the voltage of motor, in the second time period after first time period,
The torque of motor is dropped into operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
More specific detail is carried out to the preference of the control method provided by the invention and control system below.
In the present invention, motor is the AC induction motor using delta connection, in the start-up course of motor, motor
Connection keep it is constant.Wherein, motor is started with detent torque before this, and after startup, motor is run with running torque again.Namely
Say, in start-up course, use higher than voltage corresponding to running frequency come motor to obtain bigger detent torque.Its
In, it is corresponding between startup voltage, detent torque, it is corresponding between running frequency, operation torque.
As shown in figure 3, during by starting voltage motor, according to the first latitude speed of setting, dynamic is adjusted
Whole startup voltage so that motor reaches the full speed of setting within the time of setting from zero-speed, such as during setting motor one circle of rotation
Or one circle in will reach at full speed.Preferably, at full speed equal to the first latitude speed.In first time period, motor is made to maintain to open
Dynamic torque so that motor reaches the second latitude speed of setting at the end of first time period.In second time period, by motor
Torque drops to operation torque by detent torque so that and motor reaches the N latitude speed of setting at the end of second time period, its
In, N is the positive integer more than or equal to 3, such as N is 3,4 or 5.When motor operation is in running frequency, it is believed that motor has been turned on
Complete, and enter the operation phase.So, by set maintain detent torque first time period and torque fall second when
Between section, former latitudes when starting to loom can be obtained and cloth cover before is perfect docks.Further, the anti-of closed loop is passed through
Feedback, can set the offset that detent torque need to change caused by the long warp thread creep of motor down time, to detent torque
Compensate.First latitude speed, the second latitude speed, N latitude speed, refer respectively to loom and break the first latitude, break the second latitude, make a call to N
The rotating speed of motor during latitude.
Compared to traditional motor, the super startup of conventional motors is by switching between delta connection and star connection
Arrive, motor only has two kinds of fixed torques in start-up course；And the detent torque of the present invention is dynamic change, pass through drive
The adjustment of dynamic voltage can realize stepless changing, so as to be needed suitable for different types of fabric, so as to which same loom faces
Be not in the phenomenon of dilute shelves or close shelves during the fabric of different cultivars, it is not necessary to which can solve bad start-up by adjusting machinery asks
Topic.
The present invention also provides a kind of loom, including：It is stored with the computer-readable recording medium of computer program, the meter
Realize that described loom carries out the control method of super startup when calculation machine program is executed by processor；Or described loom is surpassed
The control system of startup.
One skilled in the art will appreciate that except realizing system provided by the invention in a manner of pure computer readable program code
And its beyond modules, completely can by by method and step carry out programming in logic come system provided by the invention and its
Modules are in the form of gate, switch, application specific integrated circuit, programmable logic controller (PLC) and embedded microcontroller etc.
To realize identical function.So system provided by the invention and its every module are considered a kind of hardware component, and it is right
What is included in it is used to realize that the module of various functions can also to be considered as the structure in hardware component；It will can also be used to realize respectively
The module of kind of function, which is considered as, not only can be the software module of implementation method but also can be the structure in hardware component.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of loom carries out the control method of super startup, it is characterised in that comprises the following steps：
Detent torque produces step：By starting voltage motor, detent torque is obtained, wherein, the startup voltage is higher than
Driving voltage corresponding to the running frequency of motor；
Detent torque keeps step：By controlling the voltage of motor, in first time period, motor is made to maintain startup to turn
Square；
Detent torque dropping step：By controlling the voltage of motor, in the second time period after first time period, by electricity
The torque of machine drops to operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
2. a kind of loom carries out the control system of super startup, it is characterised in that including following module：
Detent torque generation module：By starting voltage motor, detent torque is obtained, wherein, the startup voltage is higher than
Driving voltage corresponding to the running frequency of motor；
Detent torque keeps module：By controlling the voltage of motor, in first time period, motor is made to maintain startup to turn
Square；
Detent torque falls module：By controlling the voltage of motor, in the second time period after first time period, by electricity
The torque of machine drops to operation torque by detent torque, wherein, operation torque corresponds to the running frequency.
3. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that in the start-up course of motor, the connection of motor keeps constant.
4. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that the motor is the AC induction motor using delta connection.
5. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that during by starting voltage motor, according to the first latitude of setting speed
Degree, dynamic adjustment start voltage so that motor reaches the full speed of setting within the time of setting from zero-speed.
6. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that in first time period, make motor maintain detent torque so that motor is first
Reach the second latitude speed of setting at the end of period.
7. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that in second time period, the torque of motor is dropped into operation by detent torque and turned
Square so that motor reaches the N latitude speed of setting at the end of second time period, wherein, N is the positive integer more than or equal to 3.
8. the loom that loom according to claim 1 carries out described in the control method or claim 2 of super startup is carried out
The super control system started, it is characterised in that during by starting voltage motor, according to motor down time pair
Detent torque compensates.
A kind of 9. loom, it is characterised in that including：
- computer-readable recording medium of computer program is stored with, power is realized when the computer program is executed by processor
Profit requires that the loom described in 1 carries out the control method of super startup；Or
Loom described in-claim 2 carries out the control system of super startup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443267.1A CN107453652A (en) | 2017-06-13 | 2017-06-13 | Loom and its control method and system for carrying out super startup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443267.1A CN107453652A (en) | 2017-06-13 | 2017-06-13 | Loom and its control method and system for carrying out super startup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107453652A true CN107453652A (en) | 2017-12-08 |
Family
ID=60486807
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710443267.1A Pending CN107453652A (en) | 2017-06-13 | 2017-06-13 | Loom and its control method and system for carrying out super startup |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023671A (en) * | 2018-08-10 | 2018-12-18 | 上海神源能源科技有限公司 | Super starting water-jet loom |
| CN109167540A (en) * | 2018-08-10 | 2019-01-08 | 上海神源能源科技有限公司 | Loom and its super starting control method and system |
| CN109713943A (en) * | 2019-03-12 | 2019-05-03 | 浙江汇迅骏机电技术有限公司 | A kind of time variant voltage electric motor starting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120139372A (en) * | 2011-06-17 | 2012-12-27 | 구광일 | Circuit for protecting mal-function on shuttle circular loom |
| CN103095186A (en) * | 2011-11-06 | 2013-05-08 | 魏明 | Asynchronous motor booster starting rated voltage operation method |
-
2017
- 2017-06-13 CN CN201710443267.1A patent/CN107453652A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120139372A (en) * | 2011-06-17 | 2012-12-27 | 구광일 | Circuit for protecting mal-function on shuttle circular loom |
| CN103095186A (en) * | 2011-11-06 | 2013-05-08 | 魏明 | Asynchronous motor booster starting rated voltage operation method |
Non-Patent Citations (1)
| Title |
|---|
| 李竹君等: "《牛仔布生产技术》", 31 January 2016, 东华大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023671A (en) * | 2018-08-10 | 2018-12-18 | 上海神源能源科技有限公司 | Super starting water-jet loom |
| CN109167540A (en) * | 2018-08-10 | 2019-01-08 | 上海神源能源科技有限公司 | Loom and its super starting control method and system |
| CN109713943A (en) * | 2019-03-12 | 2019-05-03 | 浙江汇迅骏机电技术有限公司 | A kind of time variant voltage electric motor starting method |
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Application publication date: 20171208 |
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