CN107908102A - A kind of multichannel PID manual switching control methods suitable for throwing smoke machine - Google Patents
A kind of multichannel PID manual switching control methods suitable for throwing smoke machine Download PDFInfo
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- CN107908102A CN107908102A CN201711154678.5A CN201711154678A CN107908102A CN 107908102 A CN107908102 A CN 107908102A CN 201711154678 A CN201711154678 A CN 201711154678A CN 107908102 A CN107908102 A CN 107908102A
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- pid
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- pid loop
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- adjusting means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.
Abstract
The present invention relates to a kind of multichannel PID manual switching control methods suitable for throwing smoke machine.A kind of multichannel PID manual switching control methods suitable for throwing smoke machine, it is characterised in that the Controlling model includes the first pid loop, the second pid loop, the 3rd pid loop, adjusting means, manual PID switching push buttons and PID switching transient programs；This invention removes single circuit PID control hysteresis quality, reduce human intervention not in time, the influence of the factor such as inaccurate；The present invention manually selects pid loop in the equipment different operation phase, and the control function for realize different phase differentiated, becoming more meticulous, improves the control ability of smoke machine equipment master control quality index, stabilize outlet material fluctuation range.
Description
Technical field
The present invention relates to a kind of multichannel PID manual switching control methods suitable for throwing smoke machine.
Background technology
The Primary processing shop of Cigarette manufacturing enterprises widely selects the loose tobacco leaf moisting machine of cartridge type, moisture regain tobacco leaf moisting machine, Perfuming machine and baking
Silk machine carries out technique processing, although there are multigroup PID control in apparatus control method, often a pid loop just for
One adjusting means (such as aperture regulation membrane valve, frequency converter, aperture regulation air door, the feed liquid pump housing), i.e., returned using single PID
Road control all the way the energy (liquid feeding, steam or hot blast rate) number, so as to control the quality index of one outlet material.
By partial domestic scraper plate steam stalk machine exemplified by, in equipment wherein all the way steam pid loop control be steam membrane valve,
And equipment steam-return line generally uses the control mode of steam pressure feedback control steam film valve opening, the PID feedback loop
Belong to single PID closed loops control, can not be direct in the production phase although relatively stable in preheating and production phase control
Participate in the control of this important indicator of outlet temperature.And partial domestic machine is improved to outlet temperature feedback control steam membrane valve
The control mode of aperture, although way preferably solves the problems, such as that outlet temperature fluctuation is big in production, preheats in production
Stage film valve opening is by the way of manual definite value, therefore the improved model be easy to cause material top " low temperature " or " overly moist "
Phenomenon.
So for the growing Precise control requirement of technology for making tobacco threds, single pid loop controls an adjusting means
Model can not preferably meet equipment each operation phase can Precise control requirement.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of multichannel PID manual switching controlling parties suitable for throwing smoke machine
Method, can be according to the different operating statuses of throwing cartridge type process equipment, for an adjusting means, and artificial manual energy is from multichannel PID
Circuit makes choice, switches, to realize that throwing smoke machine stablizes steady, the accurate intelligentized control method without hysteresis.
To achieve these goals, the present invention uses following technical scheme：
A kind of multichannel PID manual switching control methods suitable for throwing smoke machine, it is characterised in that the Controlling model includes
First pid loop, the second pid loop, the 3rd pid loop, adjusting means, manual PID switching push buttons and PID switching transition journeys
Sequence；Multiple pid loops control same adjusting means, multiple pid loops between each other independently, without correlation,
Each circuit each selects different setting value SP and process values PV to combine；Manual PID switching push buttons are then by manually according to not
With the major control quality index requirement of equipment operation phase, manually select using different pid loops, pass through different settings
Value SP and process values PV combinations calculate CV values so as to control the adjusting means；PID switching transient programs are cut in pid loop
Changing moment ensures the steady gradual program code segments of controlling value CV；This method comprises the following steps：
1) when equipment brings into operation, it is first determined whether manually have selected the first pid loop, the is performed if meeting
One pid loop controls, and passes through setting value SP1With process values PV1Combination, calculate CV1It is worth direct-control regulator part；At the same time
During this period, CV in reasonable control range is calculated by accumulator and dividing module all the time1Average value；
2) when manually have selected the second pid loop, PID switching transient programs is performed, the first pid loop is performed
When the reasonable control range that calculates in CV1Average value is assigned to adjusting means, and for 10 seconds；Then the 2nd PID is activated to return
Road, calculates CV in real time2Value；Then the CV the second pid loop of activation calculated2Adjusting means is assigned to by formula, and
For 20 seconds, definite value formula is adjusting means definite value=CV1*K1+CV2*K2, wherein K1+K2=1, wherein K1、K2For two models
Proportional roles coefficient, draws according to multiple commissioning experience in kind；Then the control of the second pid loop is performed, passes through setting value SP2With
Process values PV2Combination, calculate CV2It is worth direct-control regulator part；At the same time during this period, accumulator and division are passed through all the time
Module calculates CV in reasonable control range2Average value；
3) when manually have selected three pid loops, PID switching transient programs is performed, the second pid loop is performed
When the reasonable control range that calculates in CV2Average value is assigned to adjusting means, and for 10 seconds；Then the 3rd PID is activated to return
Road, calculates CV in real time3Value；Then the CV the 3rd pid loop of activation calculated3Adjusting means is assigned to by formula, and
For 20 seconds, definite value formula is adjusting means definite value=CV2*K2+CV3*K3, wherein K2+K3=1, wherein K2, K3 be two models
Proportional roles coefficient, draws according to multiple commissioning experience in kind；Then the control of the 3rd pid loop is performed, passes through setting value SP3With
Process values PV3Combination, calculate CV3It is worth direct-control regulator part；At the same time during this period, accumulator and division are passed through all the time
Module calculates CV in reasonable control range3Average value；
4) as equipment difference operating status, the different pid loop of artificial selection switch over, transition journey first before switching
More than sequence one pid loop CVformerAverage value progress setting control is simultaneously for 10 seconds；Then next PID used is activated to return
Road simultaneously calculates CVnestValue；Then the CV pid loop of activation calculatednestAdjusting means is assigned to by formula, and is continued
20 seconds, definite value formula was adjusting means definite value=CVformer*Kformer+CVnest*Knest, wherein Kformer+Knest=1；Then, hold
The next pid loop control of row, passes through setting value SPnestWith process values PVnestCombination, calculate CVnestValue directly controls tune
Save device；At the same time during this period, CV in reasonable control range is calculated by accumulator and dividing module all the timenestAverage value；
5) according to above-mentioned pid loop handoff procedure, until production terminates, adjusting means is closed.
Although multiple pid loops control of type of the present invention is same adjusting means, between each other independently
, without correlation, each circuit each selects different setting value SP and process values PV to combine.Manual PID switching push buttons
It is then by manually being required according to the major control quality index of distinct device operation phase, manually selecting and returned using different PID
Road, CV values are calculated so as to control the adjusting means by different setting value SP and process values PV combinations, to meet to become more meticulous
Control the purpose of different operation phase master control quality index.PID switching transient programs are then to ensure to control in pid loop switching moment
The steady gradual program code segments of value CV processed, in order to difference when avoiding the PID from switching between two PID model controlling value CV
It is excessive and cause major control quality index fluctuation it is excessive.
This invention removes single circuit PID control hysteresis quality, reduce human intervention not in time, the shadow of the factor such as inaccurate
Ring；The present invention manually selects pid loop in the equipment different operation phase, the control for realize different phase differentiated, becoming more meticulous
Function, improves the control ability of smoke machine equipment master control quality index, stabilizes outlet material fluctuation range.
Brief description of the drawings
The control method that Fig. 1 is the present invention forms figure.
Fig. 2 is the control method program flow diagram of the present invention.
Embodiment
The embodiment of the present invention is made a detailed explanation below in conjunction with the accompanying drawings.
A kind of multichannel PID manual switching control methods suitable for throwing smoke machine as shown in Figure 1, including the one the first
Pid loop 1, the two the second pid loop 2, the 3rd pid loop 3, adjusting means 4, manual PID switching push buttons 5 and PID switched
Cross program 6.
As shown in Fig. 2, when equipment brings into operation, it is first determined whether the first pid loop 1 is manually have selected, it is such as full
It is sufficient then perform the first pid loop 1 and control, by the combination of setting value SP1 and process values PV1, calculate CV1 values and directly control tune
Save device；At the same time during this period, CV1 average values in reasonable control range are calculated by accumulator and dividing module all the time.
When manually have selected the second pid loop 2, PID switching transient programs are performed, the first pid loop 1 is performed
When the reasonable control range that calculates in CV1 average values be assigned to adjusting means, it is and for 10 seconds；Then PID2 is activated, in real time
Calculate CV2 values；Then the CV2 that the second pid loop 2 of activation calculates is assigned to adjusting means by formula, and continued
20 seconds, definite value formula was adjusting means definite value=CV1*K1+CV2*K2, wherein K1+K2=1.Wherein K1, K2 are two model ratios
Example weight coefficient, draws according to multiple commissioning experience in kind.Then the second pid loop 2 is performed to control, by setting value SP2 and
The combination of process values PV2, calculates CV2 value direct-control regulator parts；At the same time during this period, accumulator and division are passed through all the time
Module calculates CV2 average values in reasonable control range.
When manually have selected three pid loops 3, PID switching transient programs are performed, the second pid loop 2 is performed
When the reasonable control range that calculates in CV2 average values be assigned to adjusting means, it is and for 10 seconds；Then PID3 is activated, in real time
Calculate CV3 values；Then the CV3 that the pid loop 3 of activation calculates is assigned to adjusting means by formula, and it is for 20 seconds,
Definite value formula is adjusting means definite value=CV2*K2+CV3*K3, wherein K2+K3=1.Wherein K2, K3 weigh for two model scales
Weight coefficient, draws according to multiple commissioning experience in kind.Then perform pid loop 3 to control, pass through setting value SP3 and process values PV3
Combination, calculate CV3 value direct-control regulator parts；At the same time during this period, calculated all the time by accumulator and dividing module
Go out CV3 average values in reasonable control range.
With equipment difference operating status, the different pid loop of artificial selection switches over, transient program first before switching
One pid loop CV of the aboveformerAverage value progress setting control is simultaneously for 10 seconds；Then next pid loop used is activated
And calculate CVnestValue；Then the CV pid loop of activation calculatednestAdjusting means is assigned to by formula, and continues 20
Second, definite value formula is adjusting means definite value=CVformer*Kformer+CVnest*Knest, wherein Kformer+Knest=1；Then, perform
Next pid loop control, passes through setting value SPnestWith process values PVnestCombination, calculate CVnestValue directly controls adjusting
Device；At the same time during this period, CV in reasonable control range is calculated by accumulator and dividing module all the timenestAverage value.
According to above-mentioned pid loop handoff procedure, until production terminates, adjusting means is closed.
The foregoing is merely the preferred embodiment of type of the present invention, all impartial changes made according to type claim of the present invention
Change and modify, should all belong to the covering scope of type patent of the present invention.The use scope of type of the present invention is not only limited to tobacco cutting control
Control equipment, can be applied to daily life and other industrial similar fields.
Claims (1)
1. a kind of multichannel PID manual switching control methods suitable for throwing smoke machine, it is characterised in that the Controlling model includes the
One pid loop, the second pid loop, the 3rd pid loop, adjusting means, manual PID switching push buttons and PID switching transient programs；
Multiple pid loops control same adjusting means, multiple pid loops between each other independently, without correlation, each
Circuit each selects different setting value SP and process values PV to combine；Manual PID switching push buttons are then by manually being set according to difference
The major control quality index requirement of standby operation phase, manually selects using different pid loops, passes through different setting value SP
CV values are calculated with process values PV combinations so as to control the adjusting means；PID switching transient programs are then to switch wink in pid loop
Between ensure the steady gradual program code segments of controlling value CV；This method comprises the following steps：
1) when equipment brings into operation, it is first determined whether manually have selected the first pid loop, first is performed if meeting
Pid loop controls, and passes through setting value SP1With process values PV1Combination, calculate CV1It is worth direct-control regulator part；Exist at the same time
During this, CV in reasonable control range is calculated by accumulator and dividing module all the time1Average value；
2) when manually have selected the second pid loop, PID switching transient programs is performed, are counted when the first pid loop is performed
CV in the reasonable control range calculated1Average value is assigned to adjusting means, and for 10 seconds；Then the second pid loop is activated, it is real
When calculate CV2Value；Then the CV the second pid loop of activation calculated2Adjusting means is assigned to by formula, and is continued
20 seconds, definite value formula was adjusting means definite value=CV1*K1+CV2*K2, wherein K1+K2=1, wherein K1、K2For two model scales
Weight coefficient, draws according to multiple commissioning experience in kind；Then the control of the second pid loop is performed, passes through setting value SP2And process
Value PV2Combination, calculate CV2It is worth direct-control regulator part；At the same time during this period, accumulator and dividing module are passed through all the time
Calculate CV in reasonable control range2Average value；
3) when manually have selected three pid loops, PID switching transient programs is performed, are counted when the second pid loop is performed
CV in the reasonable control range calculated2Average value is assigned to adjusting means, and for 10 seconds；Then the 3rd pid loop is activated, it is real
When calculate CV3Value；Then the CV the 3rd pid loop of activation calculated3Adjusting means is assigned to by formula, and is continued
20 seconds, definite value formula was adjusting means definite value=CV2*K2+CV3*K3, wherein K2+K3=1, wherein K2, K3 be two model scales
Weight coefficient, draws according to multiple commissioning experience in kind；Then the control of the 3rd pid loop is performed, passes through setting value SP3And process
Value PV3Combination, calculate CV3It is worth direct-control regulator part；At the same time during this period, accumulator and dividing module are passed through all the time
Calculate CV in reasonable control range3Average value；
4) as equipment difference operating status, the different pid loop of artificial selection switch over, switching before first transient program with
A upper pid loop CVformerAverage value progress setting control is simultaneously for 10 seconds；Then next pid loop used is activated simultaneously
Calculate CVnestValue；Then the CV pid loop of activation calculatednestAdjusting means is assigned to by formula, and it is for 20 seconds,
Definite value formula is adjusting means definite value=CVformer*Kformer+CVnest*Knest, wherein Kformer+Knest=1；Then, under execution
One pid loop control, passes through setting value SPnestWith process values PVnestCombination, calculate CVnestIt is worth direct-control regulator
Part；At the same time during this period, CV in reasonable control range is calculated by accumulator and dividing module all the timenestAverage value；
5) according to above-mentioned pid loop handoff procedure, until production terminates, adjusting means is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154678.5A CN107908102A (en) | 2017-11-20 | 2017-11-20 | A kind of multichannel PID manual switching control methods suitable for throwing smoke machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154678.5A CN107908102A (en) | 2017-11-20 | 2017-11-20 | A kind of multichannel PID manual switching control methods suitable for throwing smoke machine |
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| CN107908102A true CN107908102A (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711154678.5A Pending CN107908102A (en) | 2017-11-20 | 2017-11-20 | A kind of multichannel PID manual switching control methods suitable for throwing smoke machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782826A (en) * | 2019-01-14 | 2019-05-21 | 浙江中烟工业有限责任公司 | A kind of difunctional cleaning water thermostat suitable for water terrier wash machine |
| CN113017137A (en) * | 2021-03-18 | 2021-06-25 | 河南中烟工业有限责任公司 | Control method and system for tobacco stem pressurization and steaming outlet temperature |
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| CN103315382A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Cascaded PID based charging moisture control device in tobacco shred processing technology |
| CN103315383A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Charging moisture control method for tobacco shred processing |
| CN205450591U (en) * | 2016-03-01 | 2016-08-10 | 中国飞机强度研究所 | Multichannel becomes PID parameter servovalve system |
| CN106970636A (en) * | 2017-05-17 | 2017-07-21 | 北京理工大学 | A kind of control system and its control method for being used to control aircraft speed |
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2017
- 2017-11-20 CN CN201711154678.5A patent/CN107908102A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315382A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Cascaded PID based charging moisture control device in tobacco shred processing technology |
| CN103315383A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Charging moisture control method for tobacco shred processing |
| CN205450591U (en) * | 2016-03-01 | 2016-08-10 | 中国飞机强度研究所 | Multichannel becomes PID parameter servovalve system |
| CN106970636A (en) * | 2017-05-17 | 2017-07-21 | 北京理工大学 | A kind of control system and its control method for being used to control aircraft speed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782826A (en) * | 2019-01-14 | 2019-05-21 | 浙江中烟工业有限责任公司 | A kind of difunctional cleaning water thermostat suitable for water terrier wash machine |
| CN113017137A (en) * | 2021-03-18 | 2021-06-25 | 河南中烟工业有限责任公司 | Control method and system for tobacco stem pressurization and steaming outlet temperature |
| CN113017137B (en) * | 2021-03-18 | 2022-04-19 | 河南中烟工业有限责任公司 | Control method and system for tobacco stem pressurization and steaming outlet temperature |
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Application publication date: 20180413 |